EP3845807A1 - Improved gas supply valve for a burner of a gas cooking appliance - Google Patents
Improved gas supply valve for a burner of a gas cooking appliance Download PDFInfo
- Publication number
- EP3845807A1 EP3845807A1 EP20217703.6A EP20217703A EP3845807A1 EP 3845807 A1 EP3845807 A1 EP 3845807A1 EP 20217703 A EP20217703 A EP 20217703A EP 3845807 A1 EP3845807 A1 EP 3845807A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- cavity
- valve
- supply valve
- gas supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010411 cooking Methods 0.000 title claims description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 97
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 230000033228 biological regulation Effects 0.000 claims description 32
- 239000007789 gas Substances 0.000 description 201
- 208000031968 Cadaver Diseases 0.000 description 32
- 235000021183 entrée Nutrition 0.000 description 19
- 238000009434 installation Methods 0.000 description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000003209 petroleum derivative Substances 0.000 description 5
- 230000004913 activation Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 241000920340 Pion Species 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 235000021168 barbecue Nutrition 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910000842 Zamak Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940082150 encore Drugs 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/002—Gaseous fuel
- F23K5/007—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2900/00—Special features of, or arrangements for fuel supplies
- F23K2900/05002—Valves for gaseous fuel supply lines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/24—Valve details
Definitions
- the present invention relates to a gas supply valve for supplying and regulating the flow of gas to a burner of a gas cooking appliance.
- Gas taps are known from documents JP-A-H11304158 , US-A-3255965 , US-A-4108370 and JP-A-2012002294 .
- the regulating cone is driven in rotation by an operating member which extends along the longitudinal axis.
- This maneuvering member also moves in translation along the longitudinal axis.
- the operating member can cooperate directly or indirectly with means producing a slight clicking noise during the rotation of the operating member.
- the positions of the adjustment button as well as the maneuvering member are not stable, fixed and repeatable positions associated respectively with a gas flow rate determined for the user.
- the operating member passes through a casing which is mounted on the body of the valve and which comprises means for guiding the operating member in rotation at least in part through this casing.
- the body is generally made by casting, stamping or extrusion in a metallic and machined material.
- the bypass member is in the form of a needle rotatably arranged in another cavity along the longitudinal axis.
- the needle comprises a head provided with an indentation, a distal end having a substantially conical shape and a passage passing through the body thereof.
- a tool such as a screwdriver in order to be able to turn the needle and ensure that the section of the passage is more or less reduced.
- the gas valve may also include a shutter which is rotatably arranged in yet another cavity with a longitudinal axis so as to be able to adapt the valve to a type of gas, such as natural gas or petroleum gas.
- Natural gas with the initials GN has a lower calorific value while petroleum gas, which mainly comprises propane or butane, and with the initials GP, has a higher calorific value.
- Petroleum gas is typically available in bottles.
- the user can adapt his supply valve according to the supply equipment at his disposal.
- the shutter comprises a head with a recess intended to receive a tool such as a screwdriver to drive it in rotation.
- the valve also comprises a cocking member intended to be arranged in a duct arranged under the regulating cone.
- the arming member is elongated between two ends which respectively comprise an arm.
- One arm cooperates with a lower end of the regulation cone and the other arm cooperates with the safety solenoid valve.
- the actuator When the actuator is actuated, the latter causes the arm to move via the regulating cone which causes the arming member to rotate and the other arm in turn moves a pin located upstream of the safety solenoid valve.
- the body of the supply valve is intended to be fixed on a gas supply rail of the cooking appliance.
- a clamping flange is mounted on the body and is secured to a counter flange surrounding at least in part the substantially cylindrical supply ramp.
- this valve includes many parts to be handled with tools so as to calibrate or regulate the gas flow, which does not facilitate the use of such a gas supply valve.
- a first objective of the present invention is to provide a gas valve that is easier to use and more economical.
- Another objective is to obtain the same flow rate (heating power of the burner) for two types of gas having a different calorific value and this for the same determined position of an operating member.
- Another objective of the invention is to adjust the gas flow and to adapt the supply valve to a type of gas in a single gesture.
- Another objective of the invention is to associate a gas flow rate with a position of the operating member in a stable and repeatable manner.
- this solution makes it possible to achieve the above-mentioned objective.
- a single regulating member to be able to adapt the valve to a type of gas by closing or opening cavities or channels so as to allow or interrupt an additional circulation of gas from the inlet to the outlet while at the same time. that can regulate the flow.
- the regulator member and the corridor are configured so as to have a power delivered to the overall burner that is substantially identical for different types of gas whether the regulator member is in its first or second position and this for the same position of the regulation cone. . In this way, we obtain the same heating power for different types of gas at the same given position. This is all the more important and remarkable when the regulating cone occupies intermediate positions where the gas flow rate is less than the full flow rate. Indeed, more channel sections are open when the regulator is in the first position.
- the activation means comprising a movable arming member comprising an orifice of axis G parallel to the longitudinal axis which is traversed at least in part by the regulating cone and a tab extending in a housing along a parallel axis the longitudinal axis, the tab being intended to actuate the safety solenoid valve.
- the invention also relates to a gas supply system for a gas cooking appliance, the system comprising at least one supply rail and at least one gas valve having any one of the preceding characteristics, the gas valve being mounted on the supply ramp, the system further comprising a counter flange which is arranged so as to at least partially surround the supply ramp and to be fixed at least to the casing by means of fixing means.
- a gas supply system with a gas supply valve 1 intended to equip a gas cooking appliance.
- the cooking appliance can be a gas hob, a gas stove or a gas barbecue.
- the gas supply valve 1 comprises a body 2 which is profiled.
- the body is generally produced by die-forging or extrusion foundry and in a material comprising aluminum or brass.
- the body 2 is provided with a gas inlet 3 and a gas outlet 4.
- the gas inlet 3 is intended to be connected to a gas supply source (not shown).
- the latter can be a gas cylinder or a town gas distribution network.
- a pipe (not shown) comprises a first end which is coupled to the gas inlet 3 and a second end which is coupled to the outlet of the power source.
- the gas outlet 4 is intended to be connected to a burner (not shown) of the cooking appliance. gas by which the supplied gas is ignited for the heating of culinary utensils and / or the cooking of food.
- the terms “interior”, “internal”, “exterior” and “external” are defined with respect to the interior and exterior of the body or of the other parts intended to be housed in or on the body.
- the terms “lower” and “upper” are defined with respect to a first axis called the longitudinal axis X and with regard to the distance from the longitudinal axis X.
- the longitudinal axis X is perpendicular to a second axis called transverse axis Y and a third axis called lateral axis Z.
- These three axes X, Y, Z form an orthonormal reference as shown in the figure.
- identical or substantially identical elements and / or with the same functions are represented by the same reference numerals.
- the gas inlet 3 opens onto a first face 5 of the body 2 and the gas outlet 4 opens onto a second face 6 of the body 2.
- the first and second faces 5, 6 are opposite along the transverse axis. Y of the body.
- the body 2 comprises a plurality of channels, cavities, holes, conduits, chambers, corridors or even hoses through which the gas can flow from the gas inlet to the gas outlet.
- the body 2 comprises a first cavity 10 of axis A parallel to the longitudinal axis X.
- the first cavity 10 comprises a first opening 11 and a second opening which are opposite along the longitudinal axis.
- the first opening 11 opens onto an upper surface 13 of the body (in relation to FIG. 2).
- the second opening opens into a first duct 14 also formed inside the body.
- the first duct 14 comprises an inlet 14a and an outlet 14b.
- the entrance to the first duct 14 opens onto a third face 7 of the body.
- the inlet 14a is closed off by a closing element 15.
- the outlet 14b of the first duct the latter opens into the first cavity 10.
- the closing element 15 is a ball.
- the first cavity 10 fluidly communicates with the gas outlet 4.
- the first cavity 10 comprises an inlet 10a formed by the second opening.
- the first cavity 10 comprises a first outlet 16a which communicates with the gas outlet 4.
- the body comprises a first channel 17 with an inlet 17a and an outlet 17b.
- the first outlet 16a of first cavity 10 is connected to inlet 17a of first channel 17 and outlet 17b of first channel 17 is connected to gas outlet 4.
- the body includes a second channel 18 which is in fluid communication with the first cavity 10.
- the second channel 18 includes an inlet 18a and an outlet 18b.
- the inlet 18a is connected to a second outlet 16b of the first cavity 10 and the outlet 18b is connected to a second cavity 20 of axis B parallel to the longitudinal axis X.
- the valve 1 comprises a regulating cone 21 configured so as to regulate the gas flow.
- the regulation cone 21 extends along an axis C between a proximal end 22 and a distal end 23.
- the cone 21 is intended to be housed in the first cavity 10 and in a rotary manner about its axis C.
- the axis C of the regulation cone is coaxial with the longitudinal axis X.
- the regulation cone 21 comprises a first portion 24 with an external surface 25 of complementary shape with an internal surface of the first cavity.
- the first portion 24 of the cone is substantially conical or frustoconical.
- the regulating cone 21 further comprises a second portion 27 having the shape of a right cylinder.
- the second portion 27 extends the first portion 24 along the axis C.
- the second portion 27 is intended to extend outside the valve body and from the upper surface 13.
- the regulation cone 21 is hollow.
- the cone comprises a passage 28 which is formed through the wall of the regulating cone and over at least part of the circumference of the regulating cone around the axis C.
- the passage 28 opens out into the cone. 'on the one hand inside the cone and on the other hand outside the cone.
- the passage 28 has a height h1 along the axis C of the cone which is variable along the circumference of the regulating cone. In particular, the passage 28 increases in height progressively in a direction along the circumference of the wall of the cone.
- the passage 28 is provided on the first portion 24 of the regulation cone 21.
- the regulating cone 21 pivots about the longitudinal axis X to regulate the gas flow between a minimum position and a maximum position.
- the minimum position corresponds to the closing of the valve, that is to say that the gas does not reach the gas outlet 4.
- the position maximum corresponds to the opening of the valve, that is to say that the gas can reach the gas outlet 4.
- the maximum position also corresponds to a position of reduced gas flow.
- the regulation cone 21 can occupy a first intermediate position corresponding to the full gas flow rate and a second intermediate position corresponding to an intermediate gas flow rate located between the reduced flow rate and the full flow rate. In the minimum position, the regulating cone 21 is positioned at an angular position of 0 °. In the first intermediate position, the regulating cone is located at an angular position of 90 °.
- the regulation cone 21 In the second intermediate position, the regulation cone 21 is in an angular position of between 120 ° and 260 ° (or possibly between 120 ° and 200 °. Finally, in the maximum position, the regulation cone is in a position of the order of 210 ° or possibly 280 °. In other words, the gas valve is open to an opening range of between 90 ° and 210 ° or between 90 ° and 280 °. regulation 21 allows the opening of the valve between the minimum position (but conventionally a little before the first intermediate position) and the maximum position.
- the regulation cone 21 comprises a notch 29 which is formed in the wall of the cone and which extends along the axis C.
- This notch 29 is located in particular on the second portion 27 of the cone and is delimited circumferentially on both sides. the other by a border 30 (at the distal end 23) of the cone.
- the notch 29 also passes through the wall on either side radially with respect to the axis C of the cone and opens out inside the cone.
- This notch 29 has a U or C shape.
- the notch 29 is located at the same level (radially with respect to the axis C) as the widest part 28a of the passage along the line. 'C axis of cone 21.
- the operating member 40 for rotating the regulating cone 21.
- the operating member 40 is in the form of a cylindrical rod of circular section.
- the rod extends between a first end 41 and a second end 42 along an axis D.
- the first end 41 is intended to be engaged in an adjustment button (not shown) operated by a user when the latter wants to turn on or off. the burner.
- the first end 41 comprises a flat 43 intended to engage in a blind hole of corresponding shape in the adjustment button in order to block the rotation of the rod in the adjustment button.
- the flat 43 is parallel to the axis D of the rod.
- the rod comprises at its second end a lug 44 which extends radially from the body of the rod.
- the second end 42 also comprises a recess along the axis D which bears against the head of a return element housed inside the regulating cone 21.
- the lug 44 is shaped to be introduced into the notch 29 of the regulating cone so that the latter is integral at least in rotation with the control member maneuver 40 (the rod).
- the lug 44 has the shape of a right cylinder. Of course, the lug can have another shape as soon as it can be introduced into the notch 29.
- the lug 44 and the operating member also move in translation along the longitudinal axis.
- the return element promotes the return to position of the rod.
- the return element is a compression spring for example.
- the operating member 40 occupies the same position as the regulating cone 21 since they are integral in movement.
- the valve 1 comprises a housing 50 mounted on the body of the supply valve as can be seen on the figures 1 and 7 .
- the housing 50 is known by the name of “bearing”.
- the housing 50 comprises a metallic material.
- An example of a metallic material is aluminum, steel or stainless steel.
- the casing is made from a stamped sheet or by foundry.
- the casing 50 comprises a bottom 51 and a side wall 52 rising from the bottom 51.
- a base 53 delimits an opening in the casing which is opposite the bottom 51 along the height of the casing (along the longitudinal axis).
- the base 53 comprises through holes 54 (at the level of an ear) with an axis parallel to the longitudinal axis X. These through holes 54 are intended to receive fixing means 55 for fixing the casing 50 to the body. 2.
- the fixing means 55 comprise screws.
- the bottom 51 is crossed by an orifice 56 with an axis parallel to the longitudinal axis.
- the axis of the orifice is coaxial with the axis of the regulation cone or of the first cavity.
- the bottom 51 is at a distance from the upper surface 13.
- the operating member here the rod
- the casing 50 comprises a hollow sleeve 57 which delimits the through orifice 56 and which extends from the bottom 51 along the longitudinal axis X. The sleeve 57 makes it possible to guide the operating member 40 in movement.
- the side wall 52 of the housing 50 is provided with a first threaded hole 58 of axis E.
- This axis E is parallel to the transverse axis Y.
- the first threaded hole 58 is intended to receive fixing means 55 for fixing. of the tap on a supply rail 60 as can be seen on the figure 1 .
- a second tapped hole 61 (cf. figure 3 ) is arranged in the body of the valve and is intended to receive fixing means 55 as well.
- the fixing means 55 comprise screws.
- the second tapped hole 61 has an axis parallel to the transverse axis.
- the axes of the first and second threaded holes 58, 61 are parallel.
- the axes are defined in the same plane (in installation situation).
- the figure 1 shows a counter flange 62 having two smooth and through holes.
- the counter flange 62 is installed on one side of the ramp 60 and the screws are inserted in the smooth holes of the flanges and in the first and second tap holes of the tap for fixing the assembly and maintaining the tap on the ramp 60.
- This configuration avoids the installation of an additional clamping flange to cooperate with the counter flange.
- making the first threaded hole in the casing saves material which generates economic savings.
- the valve 1 comprises a regulating member 65 received in the second cavity 20 in a rotatable manner between a first position and a second position.
- the second cavity 20 includes an orifice 66 (shown in figure 2 ) which opens onto the upper surface 13 of the body.
- the second cavity 20 comprises a first inlet 20a which is connected to the outlet 18b of the second channel 18.
- the first inlet 20a is opposite along the longitudinal axis to the orifice 66 (or opposite the upper surface 13).
- the second cavity 20 further comprises a first outlet 20b which is connected to the gas outlet 4 via a third channel 67.
- the third channel 67 opens out, on the one hand, into the gas outlet 4 and d 'on the other hand, in the second cavity 20.
- the second cavity 20 comprises along the longitudinal axis X, a first part 20d, a second part 20e and a third part 20f.
- the second cavity 20 is substantially cylindrical with a circular section.
- the first part 20d has a diameter D31 greater than that of the second part 20e which also has a diameter D32 greater than the diameter D33 of the third part 20f.
- the diameter of the second cavity decreases from the orifice 66 to the first inlet 20a
- the body of the valve also comprises a corridor 104 which opens into the second cavity 20.
- the corridor 104 comprises an inlet 104a which is connected to a third outlet 16c of the first cavity 10 and an outlet 104b which is connected to a second inlet 20c of the second cavity 20.
- This corridor 104 makes it possible to provide an additional gas flow when the valve is configured to operate with NG.
- the regulating member 65 extends along a main axis F which is coaxial with the axis B (and with the longitudinal axis X) of the second cavity 20 in the installation situation.
- the regulator 65 comprises a body of generally cylindrical shape and is hollow.
- the body comprises a head 68 and a free end 69 which are opposite along the axis F.
- the head 68 comprises a face 70 with an indentation 71 so as to be able to drive the regulator member in rotation.
- the recess 71 may have an I, square or star shape to receive a tool such as a screwdriver having a tip adapted to the shape of the recess.
- the regulator 65 comprises an internal passage 72 (shown in dotted lines) which opens out at the free end 69, forming an inlet 73. The latter opens into the second cavity 20 (in the installation situation).
- the regulatory body 65 comprises a first hole 74 which opens out both in the internal passage 72 and on the external cylindrical surface 75 of the regulator member.
- the first hole 74 defines a first outlet of the internal passage.
- the regulating member comprises a second hole 74 ′ which opens out both in the internal passage and on the external cylindrical surface. This second hole therefore defines a second outlet from the internal passage.
- the first and second holes 74, 74 ' are radially opposed. At least one of the first and second holes is connected to the gas outlet 4.
- this fluid communication between the internal passage and the gas outlet is produced at the level of the third channel 67.
- the regulating member 65 comprises a groove 76 formed on the circumference of the body and close to the head 68.
- the groove is intended to receive a sealing element 77 so as to fill a possible gap between the second cavity 20 and the 'regulator member 65.
- the sealing element 77 is advantageously an O-ring centered on the axis of the regulator member.
- the regulating member 65 comprises a first portion of the outer surface 78 which has a first determined height h2.
- This first external surface portion 78 is intended to cooperate with a first internal surface portion of the second cavity 20.
- the first external surface portion 78 has a shape complementary to the first internal surface portion of the second part 20e. of the second cavity 20.
- the first outer surface portion 78 is carried by a first portion 80 of the body having a diameter D1 greater than a diameter D2 of a second portion 81 of the body.
- the first portion 80 is arranged in the upper part of the hole or holes 74, 74 ′ along the axis F.
- the hole or holes 74, 74 ′ are arranged on the second portion 81 of the body.
- the regulating member 65 also comprises a second portion of the outer surface 82 having a second predetermined height h4.
- the second predetermined height h4 is less than the first predetermined height h2 of the first outer surface portion 78.
- the second outer surface portion 82 is carried by a third portion 83 of the body having a diameter D3 smaller than that of the second portion 81. .
- the regulating member 65 further comprises an external thread 84 complementary to internal threads of the second cavity 20.
- the external thread 84 is formed on a fourth portion 85 of the body of the regulating member.
- the fourth portion 85 has a diameter greater than that of the first portion 80.
- the outer diameter of the regulating member decreases from the head 68 to the free end 69 (i.e. from the fourth portion to the third portion) along the axis F.
- the external thread 84 has a type 4 metric thread (M5 ).
- the outside diameter of the regulating member 65 with the external thread is of the order of 4 mm.
- the regulator member 65 pivots about the longitudinal axis X between its first position and its second position. In the first position, the regulator allows fluid communication between the corridor 104 and the gas outlet 4.
- the first position corresponds to the case where the valve is configured to be supplied by GN with an additional gas circulation from the corridor 104 at the gas outlet.
- the first and the second outlet 74, 74 ' is / are connected to the inlet of the third channel 67.
- the first and / or the second outlet 74, 74' of the internal passage 72 is / are arranged in the second part 20e of the second cavity 20 which is in fluid communication with the third channel 67.
- the outlet 104b of the passage 104 is in fluid communication with the second cavity 20 (and in particular with the second part 20e of the second cavity 20).
- the first channel 17 and / or the second channel 18 and / or corridor 104 are connected and in fluid communication. with gas outlet 4.
- the regulator 65 interrupts the fluid communication between the passage 104 and the gas outlet 4.
- the second position corresponds to the case where the valve is configured to be supplied by GP and there is no circulation of additional gas.
- the second portion 81 with at least one of the first and second outlets 74, 74 'of the body is located at the bottom 86 of the second part 20e of the second cavity 20.
- the closing height h2 of the first outer surface portion 78 is greater than the closing height of the outlet 104b of the corridor 104l.
- the second external surface portion 82 cooperates with a second internal surface portion of substantially corresponding shape and dimension of the second cavity 20.
- the second external surface portion 82 is located in the third part 20f of the second. cavity 20.
- the first outer surface portion 78 has a closing guard SG (which is positioned below the exit from the corridor 104), the height h5 of which is less than the height h4 of the second outer surface portion 82.
- the height h6 of the second portion 81 of the regulating member 65 is less than the height h7 measured between the bottom 86 of the second part of the second cavity 20 and a lower end of the outlet 104b of the corridor 104. In this way, no fluid can pass between the first portion of the outer surface 78 and the first portion of the inner surface of the second cavity.
- the second outer surface portion 82 closes a portion of the second cavity 20 so that no fluid can pass around the second surface portion 82.
- the passage of gas through at least one of the first and second outlets 74, 74 'of the internal passage 72 will depend on the position of the regulating cone 21 and of the passage 28 thereof to allow gas to pass through the second channel 18 as we will see later.
- the figure 9 represents means for activating a safety solenoid valve 91 described later in the present description.
- the activation means comprise in this example an arming member 90 which is mobile.
- This cocking member 90 is intended to actuate the solenoid valve 91.
- the cocking member 90 comprises a base 92 provided with an orifice 93 of axis G.
- the base 92 is defined in a plane which is perpendicular to the axis. 'axis G. This axis is parallel to the longitudinal axis in the installation situation.
- the upper surface 13 of the valve body includes a recess 94 (shown in figure 2 ) in which the base 92 is housed to keep it in position.
- the second portion 27 of the regulation cone 21 extends through the orifice 93.
- the base 92 of the cocking member 90 comprises a first surface 94 and a second surface 95 opposite along the axis G (or longitudinal axis X in the installation situation).
- the first surface 94 includes stops 96 which rise from the base 92 to define the rotation of the actuator (the rod) between its two positions.
- there are two stops which are spaced from each other along the circumference of the orifice.
- the lug 44 moves on the first surface 94 of the base 92 and between the two stops 96.
- the second surface 95 comprises a recess 97 intended to receive one end of a return element 112.
- the latter is housed in a first housing 98 of axis H parallel to the longitudinal axis as shown in FIG. figure 1 .
- This return element 112 is intended to keep the cocking member 90 in contact with the lug 44 of the operating member 40.
- the return element 112 may be a compression spring.
- the casing 50 covers the cocking member 90 in the installation situation.
- the cocking member 90 also comprises a tab 113 which extends from the base (in particular from the second surface 95).
- the tab 113 extends along an axis parallel to the longitudinal axis and to the G axis.
- the tab 113 comprises a free end 99.
- the body of the valve comprises a second housing 100 of axis I parallel to the longitudinal axis. .
- the second housing 100 opens out on the one hand on the upper surface 13 and on the other hand in a hose 106.
- the tab 113 is housed in this second housing 100.
- the free end 99 is intended to cooperate with a pin 101 which is arranged in this hose 106.
- the hose 106 here extends along an axis perpendicular to the longitudinal axis.
- the cocking device 50 is made of a polymer material. Such a material makes it possible to reduce the manufacturing costs of the valve.
- the cocking member is made of a metallic material.
- An example of a metallic material is aluminum or zamak.
- the valve comprises a movable part mounted around the regulating cone 21 and which comprises a notch 102 intended to cooperate with a movable engagement element.
- This movable part is housed at least in part in the casing 50.
- This movable engagement element is in particular at least integral in rotation with the operating member 40.
- the movable part can be formed by the cocking member 90.
- the movable engagement element may be formed by the lug 44.
- the figure 10 illustrates another embodiment of the cocking member 90 which is configured so as to associate a position of the rod (operating member 40) (or of the regulating cone 21) with a determined flow rate, to maintain this position and repeatably.
- the base 92 comprises the notch 102 cooperating with the lug 44 of the operating member.
- the first surface 94 comprises a plurality of recesses 103 or notches formed in the thickness of the base 92. These recesses 103 extend circumferentially on either side of the stops 96. In this embodiment there is only 'a single stop.
- the hollows 103 extend over an angular sector of between 90 ° and 210 ° or between 90 ° and 280 ° depending on the embodiment.
- the valve body comprises a chamber 105 which is intended to house the safety solenoid valve 91.
- the latter makes it possible to prevent the circulation of gas in the body of the valve while there is no flame at the level of the burner.
- the solenoid valve 91 prevents the gas coming from the gas inlet 3 from circulating from the first duct 14 to the first cavity duct 10 where the regulating element is located. (regulation cone 21) in the absence of flame while the valve is open.
- the solenoid valve cooperates with an electronic or thermoelectric control system connected to the cooking appliance.
- the electronic or thermoelectric control system comprises a thermocouple which is arranged near at least one burner.
- the chamber 105 comprises a first inlet 105a and an outlet 105b.
- the hose 106 (which houses the movable pin 101) comprises an inlet 106a and a first outlet 106b.
- the first inlet 105a of the chamber 105 opens onto a fourth face 9.
- the outlet 105b is connected to the inlet 106a of the hose 106.
- the chamber 105 is substantially cylindrical with an axis J which is coaxial with that of the hose 106.
- the first outlet 106b of the hose 106 is connected to an interior opening of the second housing 100 in which the tab 113 is installed.
- the solenoid valve 91 is arranged in the chamber 105 so as to close its first inlet 105a.
- the hose 106 includes a second outlet 106c which is connected to a second inlet 14c of the first duct 14 as can be seen in the figure. figure 4 .
- this second outlet 106c is located above the first duct 14 along the longitudinal axis X.
- the pin 101 comprises at least one sealing element 110 mounted in a circumferential groove.
- the sealing element makes it possible to close the hose 66 while preventing the flow of gas to the second housing 100.
- the sealing element 110 here comprises an O-ring centered on the axis of the pin 101.
- the solenoid valve 91 typically comprises at least one electromagnet (not shown), a shutter 91a and a male connector 91c.
- the electromagnet is contained in a cylindrical housing 107 with an axis coaxial with the J axis (in the installation situation) with a circular section.
- the housing 107 comprises a diameter substantially equal to or less than that of the chamber 105.
- the shutter moves in the chamber so as to release or close the outlet of the chamber.
- the shutter 91a is movable relative to the housing 107.
- the latter comprises a disc-shaped sole 109 which is defined in a plane perpendicular to the axis of the housing.
- a rod 91d extends from the sole 109 and partly inside the housing where it moves in translation along the axis J.
- the sole carries a sealing element 111 to ensure the hermetic closure of the chamber 105 when the solenoid valve 91 is in its closed position.
- the section of the outlet of the chamber 105 is greater than that of the inlet of the hose 106.
- the body comprises a second duct 108 with an inlet and an outlet 108b.
- the inlet opens into the gas inlet 3 while the outlet 108b opens into the chamber 105.
- a second inlet 105c of the chamber is connected to the outlet 108b of the second duct 108.
- the body has the general shape of a rectangular parallelepiped with a first portion and a second portion.
- the first portion is formed the chamber 105 of the safety solenoid valve while in the second portion is formed at least the gas inlet 3.
- the gas outlet 4 is also provided in the second portion.
- the axis of the gas inlet and the axis J of the chamber 105 are substantially parallel.
- the body has a V-shaped section.
- the axes of the gas inlet and of the chamber 105 are inclined with respect to each other, forming an obtuse angle.
- the gas supply valve is closed and the regulator 65 occupies its second position for the valve to operate with GP.
- the regulating cone 21 occupies the minimum position in which there is no gas flowing towards the gas outlet.
- the passage 28 is diverted from the first, second and third outlets 16a, 16b, 16c of the first cavity 10.
- the solid outer surface 25 of the regulation cone 21 closes the first, second and third outlets 16a, 16b, 16c.
- the regulator 65 is screwed fully into the second cavity 20.
- the regulator 65 closes the outlet of the corridor 104.
- the valve 1 is open and the regulator 65 occupies its second position for the valve to operate with GP.
- the regulating cone 21 occupies its maximum position where gas circulates in the body of the valve from the gas inlet to the gas outlet. This position of the regulation cone 21 corresponds to an opening angle of approximately 90 °.
- the operating member 40 has translated and pivoted along the longitudinal axis which has pushed the lug 113 of the cocking member to the bottom of its housing 100.
- the free end 99 of the lug 113 has driven the pin 101 in translation (along the axis J) to actuate the electromagnet and disengage the shutter 91a from the inlet 106a of the hose 106.
- the gas can circulate as far as the first cavity 10, passing through the first duct 14, where the regulating cone 21 is located.
- the passage 28 of the latter and in particular the widest part 28a is located opposite the first channel 17 and the corridor 104.
- the valve is equipped with a movable part with a notch 102 (cocking member 90 for example)
- the rod has pivoted until the lug 44 is housed in a second recess corresponding to the position of substantially 90 ° of the stop.
- the gas only circulates in the first channel 17 and at full flow since the regulator 65 blocks the outlet 104b of the corridor 104. There is no portion of the passage 28 opposite the second channel 18.
- the valve is open and the regulator 65 occupies its second position for the valve to operate with GP.
- the regulating cone 21 occupies a first intermediate position where gas circulates in the body of the valve from the gas inlet to the gas outlet. This position of the regulating cone 21 corresponds to an opening angle of between 120 ° and 260 ° or between 120 ° and 200 ° and the lug 44 rests in a corresponding third recess. In this position, the widest part 28a is opposite the inlet of the second channel 18.
- the second channel 18 allows the circulation of a reduced flow of gas towards the outlet 4 and passing through the internal passage 72, then in the third channel 67.
- the internal passage 72 is in fluid communication with the third channel 67.
- a first section of the passage 28 is located opposite the first outlet 16a of the first cavity 10. In this way a certain gas flow circulates in the first channel 17 towards the gas outlet 4.
- a second section of the passage 28 is located opposite the outlet 16c of the corridor 104 but the outlet 104b of the corridor 104 is blocked by the regulator 65. The circulating gas flow in the first channel 17 and dan s the second channel 18 in this position is less than the gas flow rate circulating in the first channel of the figure 16 .
- the figure 18 illustrates the open valve and the regulator 65 in its second position for the valve to operate with GP.
- the regulating cone 21 occupies a second intermediate position of intermediate flow where gas circulates in the body of the valve from the gas inlet to the gas outlet.
- the regulating cone 21 is in a position the opening angle of which is of the order of 280 ° or 210 °.
- the lug 44 rests in a corresponding fourth recess from the closing stop.
- a third section (at the level of the smallest part of the passage 28) is located opposite the outlet 16b which opens into the second channel 18. In this way, the gas circulates in the second channel 18, in the internal passage 72 , then in the third channel 67.
- the solid outer surface 25 of the regulation cone closes the outlets 16a and 16c which open out respectively into the first channel 17 and into the corridor 104.
- the gas flow circulating only in the first channel 18 in this position is less than the gas flow rate circulating in the first and second channels 17, 18 of the figure 17 .
- the valve is closed and the regulator 65 occupies its first position for the valve to operate with GN.
- the regulating cone 21 occupies the minimum position in which there is no gas flowing to the gas outlet.
- the passage 28 is diverted from the first, second and third outlets 16a, 16b, 16c of the first cavity 10.
- the solid outer surface 25 of the regulation cone closes the first, second and third outlets.
- the regulator 65 releases an additional section in the second cavity 20 for the adjustment of the reduced flow of GN which circulates in the second channel.
- the regulator member 65 also releases the outlet 104b to allow circulation of an additional flow for the NG and in a “full flow” and “intermediate flow” flow position of the regulation cone.
- the valve is open and the regulator 65 occupies its first position for the valve to operate with GN.
- the regulating cone 21 occupies the maximum position in which the gas flows from the gas inlet to the gas outlet.
- the lug 44 is housed in the second recess corresponding to the position of substantially 90 ° of the closing stop.
- the passage 28 and in particular its widest part 28a is located opposite the first and second outlets of the first cavity 10.
- the gas which has arrived in the first cavity 10 passes through the regulation cone 21 and circulates in the first channel 17.
- the gas also circulates in the corridor 104 then is evacuated towards the third channel 67.
- the first external surface portion 78 is located above the inlet 67a of the third channel 67 and axially outside the lower end.
- the regulator 65 increases the cross section of the inlet of the third channel 67 and of the outlet of the corridor 104 which provides the additional flow for the NG.
- the GN gas flow rate circulating in the first channel 17 and in the corridor 104 in this position is greater than the GP flow rate as illustrated on the figure 16 .
- the power of the burner is substantially identical to the power delivered by the valve at the level of the gas outlet illustrated on the figure. figure 16 .
- the valve is open and the regulator 65 occupies its first position for the valve to operate with GN.
- the regulating cone 21 occupies a first intermediate position where gas circulates in the body of the valve from the gas inlet to the gas outlet.
- the regulation cone 21 is in the position corresponding to an opening angle of between 120 ° and 260 ° or between 120 ° and 200 ° 0.
- the lug 44 rests in the corresponding third recess.
- the widest part 28a is opposite the entrance to the second channel 18.
- the second channel 18 allows the circulation of a reduced flow of gas. towards the outlet 4 and passing both, through the internal passage 72 and around the regulating member 65 (from the third part to the second part of the second cavity 20), then into the third channel 67.
- the gas coming from the second channel 18 also circulates around the second portion 81 of the regulating member 65.
- the first section of the passage 28 is located opposite the first outlet 16a of the first cavity 10 so that a certain gas flow circulates in the first channel 17 towards the gas outlet 4.
- the second section of the passage 28 is also located opposite the outlet 16c of the corridor 104 so that a certain gas flow passes into the second cavity 20 and in particular around from the second portion 81 of the regulator 65 to the gas outlet 4.
- the gas flow rate circulating in the first channel 17, the second channel 18 and corridor 104 in this position is less than the gas flow rate circulating in the first and second channels on the figure 20 .
- This GN gas flow at the outlet of the valve is greater than that at outlet 4 of the figure 17 .
- the power of the burner is substantially identical to that delivered by the valve at the level of the gas outlet illustrated on the figure. figure 17 .
- the valve is open and the regulator 65 in its first position for the valve to operate with GN.
- the regulating cone 21 occupies a second intermediate position of intermediate flow where gas circulates in the body of the valve from the gas inlet to the gas outlet.
- the regulating cone 21 is in a position the opening angle of which is of the order of 280 ° or 210 °.
- the lug 44 rests in the corresponding fourth recess from the closing stop.
- the third section (at the level of the smallest part of passage 28) is located opposite exit 16b which opens into the second channel. In this way, the gas circulates in the second channel 18, then in the third channel 67. In particular, the gas circulates in the internal passage 72 and around the second portion 81 of the regulating member 65.
- the solid external surface 25 of the regulating cone closes the outlets 16a and 16c which open out respectively into the first channel 17 and into the corridor 104.
- the gas flow rate circulating only in the first channel 18 in this position is less than the gas flow rate circulating in the first and second channels 17, 18 and in corridor 104 of the figure 21 .
- This GN gas flow at the valve outlet is greater than that at the gas outlet 4 on the figure 18 .
- the power of the burner is substantially identical to that delivered by the valve at the level of the gas outlet 4 illustrated on the figure. figure 18 .
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Abstract
L'invention concerne un robinet (1) d'alimentation de gaz comprenant:- un corps pourvu d'une entrée de gaz, d'une sortie de gaz (4) entre lesquelles circule un gaz, le corps comprenant en outre un premier canal (17), un deuxième canal (18), une première cavité (10), et une deuxième cavité (20) par lesquelles peut circuler le gaz de l'entrée de gaz à la sortie de gaz (4), le premier canal (17) débouchant d'une part dans la première cavité (10) et d'autre part dans la sortie de gaz (4), le deuxième canal (18) débouchant d'une part dans la deuxième cavité (20) et d'autre part dans la première cavité (10),- un cône de régulation (21) logé dans la première cavité (10) du corps et de manière rotative autour d'un axe longitudinal X pour réguler le débit de gaz entre une position minimale et une position maximale, l'entrée de gaz étant en communication fluidique avec la première cavité (10), et- un organe régulateur (65) agencé dans la deuxième cavité (20) et comprenant un passage interne (72) avec une première entrée (73) et une première sortie (74).Selon l'invention, le corps comprend un couloir (104) qui débouche d'une part dans la première cavité (10) et d'autre part dans la deuxième cavité (20) et en ce que l'organe régulateur (65) est agencé de manière rotative autour d'un axe parallèle à l'axe longitudinal entre une première position dans laquelle l'organe régulateur (65) libère une sortie du couloir (104) et une deuxième position dans laquelle l'organe régulateur (65) obture la sortie du couloir (104).The invention relates to a gas supply valve (1) comprising: - a body provided with a gas inlet, a gas outlet (4) between which a gas circulates, the body further comprising a first channel (17), a second channel (18), a first cavity (10), and a second cavity (20) through which gas can flow from the gas inlet to the gas outlet (4), the first channel ( 17) opening out on the one hand into the first cavity (10) and on the other hand into the gas outlet (4), the second channel (18) opening out on the one hand into the second cavity (20) and on the other part in the first cavity (10), - a regulating cone (21) housed in the first cavity (10) of the body and rotatably about a longitudinal axis X to regulate the gas flow between a minimum position and a maximum position, the gas inlet being in fluid communication with the first cavity (10), and - a regulating member (65) arranged in the second cavity (20) and comprising an internal passage (72) with a first inlet (73) and a first outlet (74). According to the invention, the body comprises a passage (104) which opens out on the one hand into the first cavity (10) and on the other hand into the second cavity (20) and in that the regulator member (65) is rotatably arranged about an axis parallel to the longitudinal axis between a first position in which the regulator member (65) releases an exit from the corridor (104 ) and a second position in which the regulator (65) closes the exit from the corridor (104).
Description
La présente invention concerne un robinet d'alimentation de gaz permettant d'alimenter et de réguler le débit de gaz vers un brûleur d'un appareil de cuisson à gaz.The present invention relates to a gas supply valve for supplying and regulating the flow of gas to a burner of a gas cooking appliance.
Des robinets de gaz sont connus des documents
De manière générale, un robinet d'alimentation de gaz pour les appareils de cuisson de type cuisinière, table à gaz ou barbecue à gaz comprend :
- un corps pourvu d'une entrée de gaz, d'une sortie de gaz et de plusieurs canaux, cavités ou chambres par lesquels le gaz peut circuler de l'entrée à la sortie de gaz,
- une électrovanne de sécurité agencée dans une chambre et coopérant avec un dispositif de connexion,
- un cône de régulation agencé de manière rotative dans une des cavités suivant un axe longitudinal de manière à réguler le débit de gaz entre une position minimale où le robinet est fermé et une position maximale où le robinet est ouvert avec un débit de gaz réduit, le cône de régulation pouvant encore occuper au moins une position intermédiaire de plein débit entre les positions minimale et maximale, et
- un organe de dérivation permettant de calibrer un débit réduit lorsque le robinet est configuré pour fonctionner avec du gaz naturel ou du gaz de pétrole.
- a body provided with a gas inlet, a gas outlet and several channels, cavities or chambers through which gas can flow from the gas inlet to the gas outlet,
- a safety solenoid valve arranged in a chamber and cooperating with a connection device,
- a regulating cone rotatably arranged in one of the cavities along a longitudinal axis so as to regulate the gas flow between a minimum position where the valve is closed and a maximum position where the valve is open with a reduced gas flow, the regulation cone which can still occupy at least one intermediate position of full flow between the minimum and maximum positions, and
- a bypass member for calibrating a reduced flow when the valve is configured to operate with natural gas or petroleum gas.
Le cône de régulation est entraîné en rotation par un organe de manœuvre qui s'étend suivant l'axe longitudinal. Cet organe de manœuvre se déplace également en translation suivant l'axe longitudinal. L'organe de manœuvre peut coopérer directement ou indirectement avec des moyens réalisant un léger cliquetis lors de la rotation de l'organe de manœuvre. Cela permet à l'utilisateur qui manipule un bouton de réglage couplé à l'organe de manœuvre d'avoir une perception haptique de positions fermée et ouverte à la position plein débit lors de la rotation de celui-ci. Toutefois, il est difficile pour l'utilisateur de savoir à quel débit de gaz est associée la position du bouton de réglage en actionnant ce dernier (entre une position plein débit et de débit réduit). En particulier, les positions du bouton de réglage ainsi que de l'organe de manœuvre ne sont pas des positions stables, fixes et répétables associées respectivement à un débit de gaz déterminé pour l'utilisateur.The regulating cone is driven in rotation by an operating member which extends along the longitudinal axis. This maneuvering member also moves in translation along the longitudinal axis. The operating member can cooperate directly or indirectly with means producing a slight clicking noise during the rotation of the operating member. This allows the user who manipulates an adjustment knob coupled to the actuator to have a haptic perception of closed and open positions at the full flow position when the latter is rotated. However, it is difficult for the user to know with which gas flow rate is associated the position of the adjustment knob by actuating the latter (between a full flow and reduced flow position). In particular, the positions of the adjustment button as well as the maneuvering member are not stable, fixed and repeatable positions associated respectively with a gas flow rate determined for the user.
L'organe de manœuvre traverse un carter qui est monté sur le corps du robinet et qui comprend des moyens de guidage en rotation de l'organe de manœuvre traversant au moins en partie ce carter. Le corps est généralement réalisé par fonderie, matriçage ou extrusion dans un matériau métallique et usiné.The operating member passes through a casing which is mounted on the body of the valve and which comprises means for guiding the operating member in rotation at least in part through this casing. The body is generally made by casting, stamping or extrusion in a metallic and machined material.
L'organe de dérivation se présente sous la forme d'un pointeau agencé de manière rotative dans une autre cavité suivant l'axe longitudinal. Le pointeau comprend une tête pourvue d'une empreinte, une extrémité distale ayant une forme sensiblement conique et un passage traversant le corps de celui-ci. Pour calibrer le débit de gaz, l'utilisateur emploie un outil tel qu'un tournevis afin de pouvoir tourner le pointeau et faire en sorte que la section du passage soit plus ou moins réduite.The bypass member is in the form of a needle rotatably arranged in another cavity along the longitudinal axis. The needle comprises a head provided with an indentation, a distal end having a substantially conical shape and a passage passing through the body thereof. To calibrate the gas flow, the user uses a tool such as a screwdriver in order to be able to turn the needle and ensure that the section of the passage is more or less reduced.
Le robinet de gaz peut comprendre également un volet qui est agencé de manière rotative dans encore une autre cavité d'axe longitudinal de manière à pouvoir adapter le robinet à un type de gaz, tel que le gaz naturel ou le gaz de pétrole. Le gaz naturel siglé GN a un pouvoir calorifique inférieur tandis que le gaz de pétrole qui comprend en majorité du propane ou du butane, et siglé GP, a un pouvoir calorifique plus élevé. Le gaz de pétrole est typiquement disponible en bouteille. L'utilisateur peut adapter son robinet d'alimentation en fonction de l'équipement d'alimentation à sa disposition. Pour cela, le volet comprend une tête avec une empreinte destinée à recevoir un outil tel qu'un tournevis pour l'entraîner en rotation.The gas valve may also include a shutter which is rotatably arranged in yet another cavity with a longitudinal axis so as to be able to adapt the valve to a type of gas, such as natural gas or petroleum gas. Natural gas with the initials GN has a lower calorific value while petroleum gas, which mainly comprises propane or butane, and with the initials GP, has a higher calorific value. Petroleum gas is typically available in bottles. The user can adapt his supply valve according to the supply equipment at his disposal. For this, the shutter comprises a head with a recess intended to receive a tool such as a screwdriver to drive it in rotation.
Le robinet comprend également un organe d'armement destiné à être agencé dans un conduit agencé sous le cône de régulation. L'organe d'armement est allongé entre deux extrémités qui comprennent respectivement un bras. Un bras coopère avec une extrémité inférieure du cône de régulation et l'autre bras coopère avec l'électrovanne de sécurité. Lors de l'actionnement de l'organe de manœuvre celui-ci provoque le déplacement du bras via le cône de régulation qui entraîne la rotation de l'organe d'armement et l'autre bras déplace à son tour un pion situé en amont de l'électrovanne de sécurité.The valve also comprises a cocking member intended to be arranged in a duct arranged under the regulating cone. The arming member is elongated between two ends which respectively comprise an arm. One arm cooperates with a lower end of the regulation cone and the other arm cooperates with the safety solenoid valve. When the actuator is actuated, the latter causes the arm to move via the regulating cone which causes the arming member to rotate and the other arm in turn moves a pin located upstream of the safety solenoid valve.
Le corps du robinet d'alimentation est destiné à être fixé sur une rampe d'alimentation de gaz de l'appareil de cuisson. A cet effet une bride de serrage est montée sur le corps et est solidarisée à une contre bride entourant au moins en partie la rampe d'alimentation sensiblement cylindrique.The body of the supply valve is intended to be fixed on a gas supply rail of the cooking appliance. For this purpose a clamping flange is mounted on the body and is secured to a counter flange surrounding at least in part the substantially cylindrical supply ramp.
En plus des inconvénients susmentionnés, ce robinet comprend de nombreuses pièces à manipuler avec des outils de manière à calibrer ou réguler le débit de gaz ce qui ne facilite pas l'utilisation d'un tel robinet d'alimentation de gaz.In addition to the aforementioned drawbacks, this valve includes many parts to be handled with tools so as to calibrate or regulate the gas flow, which does not facilitate the use of such a gas supply valve.
Un premier objectif de la présente invention est de fournir un robinet de gaz plus simple d'utilisation et plus économique.A first objective of the present invention is to provide a gas valve that is easier to use and more economical.
Un autre objectif est d'obtenir un même débit (puissance de chauffe du brûleur) pour deux types de gaz ayant un pouvoir calorifique différent et ce pour une même position déterminée d'un organe de manœuvre.Another objective is to obtain the same flow rate (heating power of the burner) for two types of gas having a different calorific value and this for the same determined position of an operating member.
Un autre objectif de l'invention est de régler le débit de gaz et d'adapter le robinet d'alimentation à un type de gaz en un seul geste.Another objective of the invention is to adjust the gas flow and to adapt the supply valve to a type of gas in a single gesture.
Un autre objectif de l'invention est d'associer un débit de gaz à une position de l'organe de manœuvre de manière stable et répétable.Another objective of the invention is to associate a gas flow rate with a position of the operating member in a stable and repeatable manner.
Nous parvenons à cet objectif conformément à l'invention grâce à un robinet d'alimentation de gaz, suivant un premier aspect, et comprenant :
- un corps pourvu d'une entrée de gaz, d'une sortie de gaz entre lesquelles circule un gaz, le corps comprenant en outre un premier canal, un deuxième canal, une première cavité, et une deuxième cavité par lesquelles peut circuler le gaz de l'entrée de gaz à la sortie de gaz, le premier canal débouchant d'une part dans la première cavité et d'autre part dans la sortie de gaz, le deuxième canal débouchant d'une part dans la deuxième cavité et d'autre part dans la première cavité,
- un cône de régulation logé dans la première cavité du corps et de manière rotative autour d'un axe longitudinal X pour réguler le débit de gaz entre une position minimale et une position maximale, l'entrée de gaz étant en communication fluidique avec la première cavité, et
- un organe régulateur agencé dans la deuxième cavité et comprenant un passage interne avec une entrée et une première sortie,
- ∘ une première position dans laquelle l'organe régulateur libère une sortie du couloir,
- ∘ une deuxième position dans laquelle l'organe régulateur obture la sortie du couloir.
- a body provided with a gas inlet, a gas outlet between which a gas circulates, the body further comprising a first channel, a second channel, a first cavity, and a second cavity through which the gas can circulate the gas inlet at the gas outlet, the first channel opening out on the one hand into the first cavity and on the other hand into the gas outlet, the second channel opening out on the one hand into the second cavity and on the other hand goes into the first cavity,
- a regulating cone housed in the first cavity of the body and rotatably about a longitudinal axis X to regulate the flow of gas between a minimum position and a maximum position, the gas inlet being in fluid communication with the first cavity , and
- a regulating member arranged in the second cavity and comprising an internal passage with an inlet and a first outlet,
- ∘ a first position in which the regulator releases an exit from the corridor,
- ∘ a second position in which the regulator closes the exit of the corridor.
Ainsi, cette solution permet d'atteindre l'objectif susmentionné. En particulier, une telle configuration permet avec un seul organe régulateur de pouvoir adapter le robinet à un type de gaz en fermant ou ouvrant des cavités ou canaux de manière à autoriser ou interrompre une circulation additionnel de gaz depuis l'entrée vers la sortie tout en pouvant réguler le débit. L'organe régulateur et le couloir sont configurés de manière à avoir une puissance délivrée au brûleur globale sensiblement identique pour des types de gaz différents que l'organe régulateur soit dans sa première ou sa deuxième position et ce pour une même position du cône de régulation. De la sorte, nous obtenons une même puissance de chauffe pour différents types de gaz à une même position donnée. Cela est d'autant plus important et remarquable lorsque le cône de régulation occupe des positions intermédiaires où le débit de gaz est inférieur au plein débit. En effet, plus de sections de canaux sont ouvertes lorsque l'organe régulateur est dans la première position.Thus, this solution makes it possible to achieve the above-mentioned objective. In particular, such a configuration makes it possible, with a single regulating member, to be able to adapt the valve to a type of gas by closing or opening cavities or channels so as to allow or interrupt an additional circulation of gas from the inlet to the outlet while at the same time. that can regulate the flow. The regulator member and the corridor are configured so as to have a power delivered to the overall burner that is substantially identical for different types of gas whether the regulator member is in its first or second position and this for the same position of the regulation cone. . In this way, we obtain the same heating power for different types of gas at the same given position. This is all the more important and remarkable when the regulating cone occupies intermediate positions where the gas flow rate is less than the full flow rate. Indeed, more channel sections are open when the regulator is in the first position.
Suivant un deuxième aspect, le robinet d'alimentation de gaz comprend:
- un corps pourvu d'une entrée de gaz et d'une sortie de gaz entre lesquelles circule un gaz, le corps comprenant une première cavité s'étendant suivant un axe longitudinal X et par laquelle peut circuler le gaz de l'entrée de gaz à la sortie de gaz,
- un carter monté sur le corps et comprenant un orifice traversant coaxial avec la première cavité, et
- un organe de manœuvre s'étendant à travers l'orifice traversant suivant l'axe longitudinal et destiné à être couplé à un élément de régulation agencé dans la première cavité,
- a body provided with a gas inlet and a gas outlet between which a gas circulates, the body comprising a first cavity extending along a longitudinal axis X and through which the gas can flow from the gas inlet to the gas outlet,
- a housing mounted on the body and comprising a through orifice coaxial with the first cavity, and
- a maneuvering member extending through the through orifice along the longitudinal axis and intended to be coupled to a regulating element arranged in the first cavity,
Suivant un troisième aspect, le robinet d'alimentation de gaz comprend:
- un corps pourvu d'une entrée de gaz et d'une sortie de gaz entre lesquelles circule un gaz, le corps comprenant une première cavité s'étendant suivant un axe longitudinal X et par laquelle peut circuler le gaz de l'entrée de gaz à la sortie de gaz,
- un cône de régulation logé dans la première cavité du corps et de manière rotative autour de l'axe longitudinal X, l'entrée de gaz étant en communication fluidique avec la première cavité,
- une électrovanne de sécurité agencée dans une chambre d'axe perpendiculaire à l'axe longitudinal du corps de robinet, et
- des moyens d'activation de l'électrovanne de manière que celle-ci occupe une position d'ouverture et une position de fermeture d'une sortie de la chambre,
- a body provided with a gas inlet and a gas outlet between which a gas circulates, the body comprising a first cavity extending along a longitudinal axis X and through which the gas can flow from the gas inlet to the gas outlet,
- a regulating cone housed in the first cavity of the body and rotatably about the longitudinal axis X, the gas inlet being in fluid communication with the first cavity,
- a safety solenoid valve arranged in a chamber with an axis perpendicular to the longitudinal axis of the valve body, and
- means for activating the solenoid valve so that the latter occupies an open position and a closed position of an outlet of the chamber,
les moyens d'activation comprenant un organe d'armement mobile comportant un orifice d'axe G parallèle à l'axe longitudinal qui est traversé au moins en partie par le cône de régulation et une patte s'étendant dans un logement suivant un axe parallèle à l'axe longitudinal, la patte étant destinée à actionner l'électrovanne de sécurité.the activation means comprising a movable arming member comprising an orifice of axis G parallel to the longitudinal axis which is traversed at least in part by the regulating cone and a tab extending in a housing along a parallel axis the longitudinal axis, the tab being intended to actuate the safety solenoid valve.
Suivant un quatrième aspect, le robinet d'alimentation de gaz comprend:
- un corps pourvu d'une entrée de gaz et d'une sortie de gaz entre lesquelles circule un gaz, le corps comprenant une première cavité s'étendant suivant un axe longitudinal et par laquelle peut circuler le gaz de l'entrée de gaz à la sortie de gaz,
- un cône de régulation logé dans la première cavité du corps et de manière rotative autour de l'axe longitudinal X entre une position minimale de débit de gaz et une position maximale de débit de gaz, l'entrée de gaz étant en communication fluidique avec la première cavité, et
- un organe de manœuvre s'étendant suivant l'axe longitudinal et destiné à être couplé au cône de régulation,
- a body provided with a gas inlet and a gas outlet between which a gas circulates, the body comprising a first cavity extending along a longitudinal axis and through which the gas can flow from the gas inlet to the gas outlet,
- a regulating cone housed in the first cavity of the body and rotatably about the longitudinal axis X between a minimum gas flow position and a maximum gas flow position, the gas inlet being in fluid communication with the first cavity, and
- a maneuvering member extending along the longitudinal axis and intended to be coupled to the regulation cone,
Le robinet d'alimentation comprend également l'une ou plusieurs des caractéristiques suivantes, prises seules ou en combinaison :
- l'organe régulateur comprend une deuxième portion ayant un diamètre inférieur au diamètre d'une deuxième partie de la deuxième cavité, le couloir débouchant dans la deuxième partie.
- le robinet comprend un troisième canal qui débouche d'une part dans la deuxième cavité et d'autre part dans la sortie de gaz.
- l'organe régulateur comprend un corps cylindrique creux formant le passage interne et une première portion de surface extérieure cylindrique ayant une première hauteur prédéterminée destinée à coopérer avec une première portion de surface interne de forme correspondante dans la deuxième cavité, la hauteur prédéterminée étant supérieure à une hauteur de la sortie du couloir.
- l'organe régulateur comprend une deuxième portion surface extérieure cylindrique ayant une deuxième hauteur prédéterminée inférieure à la première hauteur prédéterminée.
- la première portion de surface extérieure comprend une garde de fermeture avec une hauteur qui est inférieure à la deuxième hauteur de la deuxième portion de surface extérieure.
- l'organe régulateur comprend un filet externe destiné à coopérer avec un filet interne de la deuxième cavité.
- le robinet comprend une électrovanne de sécurité destinée à obturer une chambre du corps et un organe d'armement mobile comprenant une patte s'étendant suivant un axe parallèle à l'axe longitudinal, la patte étant destinée à actionner l'électrovanne.
- l'organe d'armement comprend un orifice d'axe G parallèle à l'axe longitudinal, au moins une partie du cône de régulation s'étendant à travers l'orifice.
- le corps du robinet comprend un logement d'axe parallèle à l'axe longitudinal destiné à recevoir la patte de l'organe d'armement.
- le robinet comprend une pièce mobile montée autour du cône de régulation et qui comprend un crantage destiné à coopérer avec un élément d'engagement mobile solidaire au moins en partie en rotation avec un organe de manœuvre.
- le robinet comprend un carter monté sur le corps et comprenant un orifice traversant coaxial avec la première cavité d'axe longitudinal, l'organe de manœuvre s'étendant à travers l'orifice suivant l'axe longitudinal et étant couplé au cône de régulation.
- la pièce mobile est constituée par l'organe d'armement et l'élément d'engagement est monté à une extrémité de l'organe de manœuvre.
- le carter comprend un premier trou taraudé traversant une paroi latérale du carter suivant un axe perpendiculaire à l'axe longitudinal, le premier trou taraudé étant destiné à recevoir des moyens de fixation pour la fixation du robinet d'alimentation sur une rampe d'alimentation.
- le corps du robinet comprend un deuxième trou taraudé d'axe parallèle à l'axe E du premier trou taraudé.
- le corps du robinet comprend une première portion dans laquelle est formée la chambre de l'électrovanne de sécurité et une deuxième portion dans laquelle est formée au moins l'entrée de gaz, les axes étant inclinés l'un par rapport à l'autre en formant un angle obtus.
- l'organe régulateur est configuré de manière qu'au moins la première sortie du passage interne débouche dans la sortie de gaz et dans la deuxième cavité quel que soit la position de l'organe régulateur.
- la deuxième cavité est destinée à être reliée à la sortie des gaz.
- l'entrée du passage interne débouche dans la deuxième cavité.
- un élément d'étanchéité est disposé autour de l'organe régulateur et bouche un interstice entre l'organe régulateur et la deuxième cavité.
- la deuxième cavité comprend une entrée qui est située en partie inférieure de la deuxième cavité suivant l'axe longitudinal et la sortie du deuxième canal débouche dans cette entrée de manière que le gaz circule et remonte vers l'organe régulateur agencé dans la deuxième cavité.
- la troisième portion de l'organe régulateur porte la deuxième portion de surface extérieure.
- l'élément de régulation comprend un cône de régulation d'axe C coaxial à l'axe de la première cavité.
- les moyens d'activation de l'électrovanne comprennent un pion logé dans un boyau d'axe coaxial à l'axe de la chambre, la patte de l'organe d'armement étant destinée à entraîner le déplacement du pion dans le boyau.
- la chambre comprend une première entrée obturée par l'électrovanne et sa sortie débouche dans le boyau.
- la pièce mobile comprend une première surface orientée axialement vers l'extérieur du corps et pourvu du crantage.
- le crantage est disposé radialement à l'extérieur du cône de régulation.
- le crantage comprenant un premier creux associé à la position minimale du cône de régulation (position fermée du robinet) et un deuxième creux associé à la position maximale du cône de régulation.
- le crantage comprend au moins un troisième creux associé à une première position intermédiaire du cône de régulation et un quatrième creux associé à une deuxième position intermédiaire du cône de régulation. D'autres creux sont bien entendus associés à d'autres positions du cône de régulation et débit de gaz.
- le robinet comprend un élément de rappel destiné à maintenir la pièce mobile contre l'élément d'engagement quel que soit le déplacement de l'organe de manœuvre.
- la pièce mobile est logée dans un carter monté sur le corps et comprenant un orifice traversant coaxial avec la première cavité, l'organe de manœuvre s'étendant à travers l'orifice.
- the regulating member comprises a second portion having a diameter smaller than the diameter of a second part of the second cavity, the passage opening into the second part.
- the valve comprises a third channel which opens out on the one hand into the second cavity and on the other hand into the gas outlet.
- the regulating member comprises a hollow cylindrical body forming the internal passage and a first cylindrical outer surface portion having a first predetermined height intended to cooperate with a first inner surface portion of corresponding shape in the second cavity, the predetermined height being greater than a height of the exit of the corridor.
- the regulator member comprises a second cylindrical outer surface portion having a second predetermined height less than the first predetermined height.
- the first exterior surface portion includes a closing guard with a height which is less than the second height of the second exterior surface portion.
- the regulating member comprises an external thread intended to cooperate with an internal thread of the second cavity.
- the valve comprises a safety solenoid valve intended to close a chamber of the body and a movable cocking member comprising a tab extending along an axis parallel to the longitudinal axis, the tab being intended to actuate the solenoid valve.
- the cocking member comprises an orifice of axis G parallel to the longitudinal axis, at least part of the regulating cone extending through the orifice.
- the valve body comprises a housing with an axis parallel to the longitudinal axis intended to receive the tab of the cocking member.
- the valve comprises a movable part mounted around the regulating cone and which comprises a notch intended to cooperate with a movable engagement element integral at least in part in rotation with an operating member.
- the valve comprises a housing mounted on the body and comprising a through orifice coaxial with the first cavity of longitudinal axis, the operating member extending through the orifice along the longitudinal axis and being coupled to the regulating cone.
- the moving part is constituted by the cocking member and the engagement element is mounted at one end of the operating member.
- the housing comprises a first threaded hole passing through a side wall of the housing along an axis perpendicular to the longitudinal axis, the first threaded hole being intended to receive fixing means for fixing the supply valve to a supply rail.
- the valve body comprises a second threaded hole with an axis parallel to the axis E of the first threaded hole.
- the valve body comprises a first portion in which is formed the chamber of the safety solenoid valve and a second portion in which is formed at least the gas inlet, the axes being inclined with respect to each other in forming an obtuse angle.
- the regulator member is configured so that at least the first outlet of the internal passage opens into the gas outlet and into the second cavity whatever the position of the regulator member.
- the second cavity is intended to be connected to the gas outlet.
- the entrance to the internal passage opens into the second cavity.
- a sealing element is arranged around the regulator member and closes a gap between the regulator member and the second cavity.
- the second cavity comprises an inlet which is located in the lower part of the second cavity along the longitudinal axis and the outlet of the second channel opens into this inlet so that the gas circulates and rises towards the regulating member arranged in the second cavity.
- the third portion of the regulating member carries the second portion of the outer surface.
- the regulating element comprises a regulating cone of axis C coaxial with the axis of the first cavity.
- the means for activating the solenoid valve comprise a pin housed in a hose with an axis coaxial with the axis of the chamber, the tab of the cocking member being intended to cause the movement of the pin in the hose.
- the chamber comprises a first inlet closed by the solenoid valve and its outlet opens into the hose.
- the movable part comprises a first surface oriented axially towards the outside of the body and provided with the notching.
- the notching is disposed radially on the outside of the regulation cone.
- the notching comprising a first recess associated with the minimum position of the regulation cone (closed position of the valve) and a second recess associated with the maximum position of the regulation cone.
- the notching comprises at least a third recess associated with a first intermediate position of the regulation cone and a fourth recess associated with a second intermediate position of the regulation cone. Other hollows are of course associated with other positions of the regulating cone and gas flow.
- the valve comprises a return element intended to hold the movable part against the engagement element regardless of the movement of the operating member.
- the moving part is housed in a housing mounted on the body and comprising a through orifice coaxial with the first cavity, the operating member extending through the orifice.
L'invention concerne également un système d'alimentation de gaz pour un appareil de cuisson à gaz, le système comprenant au moins une rampe d'alimentation et au moins un robinet de gaz présentant l'une quelconque des caractéristiques précédentes, le robinet de gaz étant monté sur la rampe d'alimentation, le système comprenant en outre une contre bride qui est agencée de manière à entourer au moins en partie la rampe d'alimentation et à être fixée au moins au carter par l'intermédiaire de moyens de fixation.The invention also relates to a gas supply system for a gas cooking appliance, the system comprising at least one supply rail and at least one gas valve having any one of the preceding characteristics, the gas valve being mounted on the supply ramp, the system further comprising a counter flange which is arranged so as to at least partially surround the supply ramp and to be fixed at least to the casing by means of fixing means.
L'invention sera mieux comprise, et d'autres buts, détails, caractéristiques et avantages de celle-ci apparaîtront plus clairement à la lecture de la description explicative détaillée qui va suivre, de modes de réalisation de l'invention donnés à titre d'exemples purement illustratifs et non limitatifs, en référence aux dessins schématiques annexés dans lesquels :
- La
figure 1 est une vue en perspective d'un exemple de robinet d'alimentation de gaz monté sur une rampe d'alimentation d'un appareil de cuisson à gaz selon l'invention ; - La
figure 2 représente en perspective un mode de réalisation d'un corps de robinet d'alimentation de gaz selon l'invention ; - La
figure 3 est une vue en coupe axiale et schématique du corps du robinet avec des cavités et/ou chambres et/ou conduits et/ou logements et/ou boyaux et/ou canaux et/ou couloirs selon l'invention ; - La
figure 4 est une vue en coupe latérale et schématique du corps du robinet avec des cavités et/ou chambres et/ou conduits et/ou logements et/ou boyaux et/ou canaux et/ou couloirs selon l'invention ; - La
figure 5 est une vue en perspective d'un exemple de cône de régulation d'un robinet d'alimentation de gaz selon l'invention ; - La
figure 6 est une vue en perspective d'un organe de manœuvre selon l'invention ; - La
figure 7 est une vue en perspective d'un exemple de carter monté sur le corps du robinet et qui est traversé par un organe de manœuvre selon l'invention ; - La
figure 8 illustre en perspective un mode de réalisation d'un organe régulateur de débit de gaz d'un robinet d'alimentation de gaz selon l'invention ; - La
figure 9 est une vue en perspective d'un mode de réalisation d'un organe d'armement d'un robinet d'alimentation de gaz selon l'invention ; - La
figure 10 est une vue en perspective d'un autre mode de réalisation d'un organe d'armement muni de crantage avec des creux ou crans de maintien en position en fonction d'un débit déterminé pour un robinet d'alimentation de gaz selon l'invention ; - La
figure 11 est une vue en coupe axiale d'un exemple d'organe d'armement selon l'invention ; - La
figure 12 est une vue avec des portions écorchées de l'intérieur d'un exemple d'un corps de robinet dans lequel est installée une électrovanne de sécurité selon l'invention ; - La
figure 13 représente une électrovanne et un pion destinés à loger dans le corps du robinet selon l'invention ; - La
figure 14 est une vue en coupe et très schématique d'un mode de réalisation du corps de robinet dans lequel sont agencés l'organe régulateur et le cône de régulation, le robinet étant en position fermée et l'organe régulateur réglé pour que le robinet fonctionne avec du gaz de pétrole (GP) ; - La
figure 15 est une vue de détail d'une portion de l'organe régulateur installé dans une cavité du corps de robinet suivant lafigure 14 ; - La
figure 16 représente le robinet ouvert suivant le mode de réalisation de lafigure 14 ; - La
figure 17 représente le cône de régulation dans une position intermédiaire et dans lequel un deuxième canal permet la circulation d'un débit réduit de GP avec le robinet configuré selon lafigure 14 ; - La
figure 18 représente le cône de régulation dans une position dite de débit réduit et dans lequel un premier canal et un deuxième canal permettent la circulation d'un débit de GP avec le robinet configuré selon lafigure 14 ; - La
figure 19 est une vue en coupe et très schématique d'un autre mode de réalisation du corps de robinet avec un organe régulateur et un cône de régulation, le robinet étant fermé et l'organe régulateur étant réglé pour que le robinet fonctionne avec du gaz naturel (GN) ; - La
figure 20 représente le robinet ouvert avec le cône de régulation dans une position de plein débit et l'organe régulateur réglé pour que le robinet fonctionne avec du GN, un premier canal, un deuxième canal et un couloir permettent la circulation d'un débit de GN vers la sortie de gaz selon l'invention ; - La
figure 21 représente le robinet ouvert avec le cône de régulation dans une position de débit intermédiaire, et le robinet configuré suivant le mode de réalisation de lafigure 19 ; et - La
figure 22 représente le robinet ouvert et le cône de régulation dans une position de débit réduit dans lequel un deuxième canal de débit réduit permet la circulation de gaz vers la sortie de gaz, et le robinet configuré suivant le mode de réalisation de lafigure 19 .
- The
figure 1 is a perspective view of an example of a gas supply valve mounted on a supply rail of a gas cooking appliance according to the invention; - The
figure 2 shows in perspective an embodiment of a gas supply valve body according to the invention; - The
figure 3 is an axial and schematic sectional view of the valve body with cavities and / or chambers and / or conduits and / or housings and / or hoses and / or channels and / or passages according to the invention; - The
figure 4 is a side and schematic sectional view of the valve body with cavities and / or chambers and / or conduits and / or housings and / or hoses and / or channels and / or passages according to the invention; - The
figure 5 is a perspective view of an example of a regulating cone of a gas supply valve according to the invention; - The
figure 6 is a perspective view of a maneuvering member according to the invention; - The
figure 7 is a perspective view of an example of a casing mounted on the body of the valve and through which an operating member according to the invention passes; - The
figure 8 illustrates in perspective an embodiment of a gas flow regulator member of a gas supply valve according to the invention; - The
figure 9 is a perspective view of an embodiment of a cocking member of a gas supply valve according to the invention; - The
figure 10 is a perspective view of another embodiment of a cocking member provided with notches with hollows or notches for holding in position according to a determined flow rate for a gas supply valve according to the invention ; - The
figure 11 is an axial sectional view of an example of a cocking member according to the invention; - The
figure 12 is a view with cut-away portions of the interior of an example of a valve body in which is installed a safety solenoid valve according to the invention; - The
figure 13 shows a solenoid valve and a pin intended to be housed in the body of the valve according to the invention; - The
figure 14 is a sectional view and very schematic of an embodiment of the valve body in which are arranged the regulating member and the regulating cone, the valve being in the closed position and the regulating member adjusted so that the valve operates with petroleum gas (GP); - The
figure 15 is a detail view of a portion of the regulating member installed in a cavity of the valve body following thefigure 14 ; - The
figure 16 represents the open valve according to the embodiment of thefigure 14 ; - The
figure 17 represents the regulation cone in an intermediate position and in which a second channel allows the circulation of a reduced flow of GP with the valve configured according to thefigure 14 ; - The
figure 18 represents the regulating cone in a so-called reduced flow position and in which a first channel and a second channel allow the circulation of a GP flow with the valve configured according to thefigure 14 ; - The
figure 19 is a sectional view and very schematic of another embodiment of the valve body with a regulating member and a regulating cone, the valve being closed and the regulating member being adjusted so that the valve operates with natural gas ( GN); - The
figure 20 shows the valve open with the regulating cone in a full flow position and the regulator set so that the valve works with NG, a first channel, a second channel and a corridor allow the circulation of a flow of NG to the gas outlet according to the invention; - The
figure 21 shows the valve open with the regulating cone in an intermediate flow position, and the valve configured according to the embodiment of thefigure 19 ; and - The
figure 22 shows the open valve and the regulating cone in a reduced flow position in which a second reduced flow channel allows gas to flow to the gas outlet, and the valve configured according to the embodiment of thefigure 19 .
Sur la
Le robinet d'alimentation de gaz 1 comprend un corps 2 qui est profilé. Le corps est réalisé généralement par fonderie matriçage ou extrusion et dans un matériau comprenant de l'aluminium ou du laiton.The gas supply valve 1 comprises a
Le corps 2 est pourvu d'une entrée de gaz 3 et une sortie de gaz 4. L'entrée de gaz 3 est destinée à être reliée à une source d'alimentation en gaz (non représentée). Cette dernière peut être une bouteille de gaz ou un réseau de distribution de gaz de ville. A cet effet, un tuyau (non représenté) comprend une première extrémité qui est couplée à l'entrée de gaz 3 et une deuxième extrémité qui est couplée à la sortie de la source d'alimentation. La sortie de gaz 4 est destinée à être reliée à un brûleur (non représenté) de l'appareil de cuisson à gaz par lequel le gaz fourni est enflammé pour le chauffage d'ustensile culinaire et/ou la cuisson d'aliments.The
Dans la présente invention, et de manière générale, les termes « intérieur », « interne » « extérieur » et « externe » sont définis par rapport à l'intérieur et à l'extérieur du corps ou des autres pièces destinées à loger dans ou sur le corps. De même, les termes « inférieur » et « supérieur » sont définis par rapport à un premier axe dit axe longitudinal X et au regard de l'éloignement par rapport à l'axe longitudinal X. L'axe longitudinal X est perpendiculaire à un deuxième axe dit axe transversal Y et un troisième axe dit axe latéral Z. Ces trois axes X, Y, Z forment un repère orthonormé tel que représenté sur la figure. Par ailleurs, les éléments identiques ou sensiblement identiques et/ou avec les mêmes fonctions sont représentés par les mêmes références numériques.In the present invention, and in general, the terms “interior”, “internal”, “exterior” and “external” are defined with respect to the interior and exterior of the body or of the other parts intended to be housed in or on the body. Likewise, the terms “lower” and “upper” are defined with respect to a first axis called the longitudinal axis X and with regard to the distance from the longitudinal axis X. The longitudinal axis X is perpendicular to a second axis called transverse axis Y and a third axis called lateral axis Z. These three axes X, Y, Z form an orthonormal reference as shown in the figure. Furthermore, identical or substantially identical elements and / or with the same functions are represented by the same reference numerals.
L'entrée de gaz 3 débouche sur une première face 5 du corps 2 et la sortie de gaz 4 débouche sur une deuxième face 6 du corps 2. De manière générale, les première et deuxième faces 5, 6 sont opposées suivant l'axe transversal Y du corps.The
Le corps 2 comprend une pluralité de canaux, de cavités, de trous, de conduits, de chambres, de couloirs ou encore de boyaux par lesquels peut circuler le gaz depuis l'entrée de gaz à la sortie de gaz.The
En référence aux
La première cavité 10 communique fluidiquement avec la sortie de gaz 4. En particulier, la première cavité 10 comprend une entrée 10a formée par la deuxième ouverture. La première cavité 10 comprend une première sortie 16a qui communique avec la sortie de gaz 4. Le corps comprend un premier canal 17 avec une entrée 17a et une sortie 17b. La première sortie 16a de la première cavité 10 est reliée à l'entrée 17a du premier canal 17 et la sortie 17b du premier canal 17 est reliée à la sortie de gaz 4.The
Le corps comprend un deuxième canal 18 qui est en communication fluidique avec la première cavité 10. Le deuxième canal 18 comprend une entrée 18a et une sortie 18b. L'entrée 18a est reliée à une deuxième sortie 16b de la première cavité 10 et la sortie 18b est reliée une deuxième cavité 20 d'axe B parallèle à l'axe longitudinal X.The body includes a
En référence à la
Comme nous pouvons le voir sur la
Le cône de régulation 21 pivote autour de l'axe longitudinal X pour réguler le débit de gaz entre une position minimale et une position maximale. La position minimale correspond à la fermeture du robinet, c'est-à-dire que le gaz n'atteint pas la sortie de gaz 4. La position maximale correspond à l'ouverture du robinet, c'est-à-dire que le gaz peut atteindre la sortie de gaz 4. La position maximale correspond également à une position de débit réduit de gaz. Le cône de régulation 21 peut occuper une première position intermédiaire correspondant au plein de débit gaz et une deuxième position intermédiaire correspondant à un débit de gaz intermédiaire situé entre le débit réduit et le plein débit. Dans la positon minimale, le cône de régulation 21 est positionné à une position angulaire de 0°. Dans la première position intermédiaire, le cône de régulation est situé à une position angulaire de 90°. Dans la deuxième position intermédiaire, le cône de régulation 21 se trouve dans une position angulaire comprise entre 120° et 260° (ou éventuellement entre 120° et 200°. Enfin, dans la position maximale, le cône de régulation se trouve dans une position de l'ordre de 210° ou éventuellement de 280°. En d'autres termes, le robinet de gaz est ouvert suivant une plage d'ouverture comprise entre 90° et 210° ou entre 90° et 280°. Et le cône de régulation 21 permet l'ouverture du robinet entre la position minimale (mais conventionnellement un peu avant la première position intermédiaire) et la position maximale.The regulating
Le cône de régulation 21 comprend une encoche 29 qui est formée dans la paroi du cône et qui s'étend suivant l'axe C. Cette encoche 29 est située en particulier sur la deuxième portion 27 du cône et est délimitée circonférentiellement de part et d'autre par une bordure 30 (à l'extrémité distale 23) du cône. L'encoche 29 traverse également la paroi de part et d'autre radialement par rapport à l'axe C du cône et débouche à l'intérieur du cône. Cette encoche 29 a une forme en U ou en C. De manière avantageuse, mais non limitativement, l'encoche 29 est située au même niveau (radialement par rapport à l'axe C) que la partie la plus élargie 28a du passage selon l'axe C du cône 21.The
Sur la
Le robinet 1 comprend un carter 50 monté sur le corps du robinet d'alimentation comme cela est visible sur les
La paroi latérale 52 du carter 50 est pourvue d'un premier trou taraudé 58 d'axe E. Cet axe E est parallèle à l'axe transversal Y. Le premier trou taraudé 58 est destiné à recevoir des moyens de fixation 55 pour la fixation du robinet sur une rampe d'alimentation 60 comme cela est visible sur la
Le robinet 1 comprend un organe régulateur 65 reçu dans la deuxième cavité 20 de manière rotative entre une première position et une deuxième position. La deuxième cavité 20 comprend un orifice 66 (représenté sur la
Sur la
Sur cette
En référence à la
Comme nous pouvons le voir sur la
L'organe régulateur 65 comprend une première portion de surface extérieure 78 qui présente une première hauteur h2 déterminée. Cette première portion de surface extérieure 78 est destinée à coopérer avec une première portion de surface interne de la deuxième cavité 20. En particulier, la première portion de surface extérieure 78 a une forme complémentaire à la première portion de surface interne de la deuxième partie 20e de la deuxième cavité 20. La première portion de surface extérieure 78 est portée par une première portion 80 du corps ayant un diamètre D1 supérieur à un diamètre D2 d'une deuxième portion 81 du corps. La première portion 80 est agencée en partie supérieure du ou des trous 74, 74' suivant l'axe F. Le ou les trous 74, 74' sont agencés sur la deuxième portion 81 du corps.The regulating
L'organe régulateur 65 comprend également une deuxième portion de surface extérieure 82 ayant une deuxième hauteur h4 prédéterminée. La deuxième hauteur h4 prédéterminée est inférieure à la première hauteur h2 prédéterminée de la première portion de surface extérieure 78. La deuxième portion de surface extérieure 82 est portée par une troisième portion 83 du corps ayant un diamètre D3 inférieur à celui de la deuxième portion 81.The regulating
L'organe régulateur 65 comprend en outre un filet externe 84 complémentaire avec des filets interne de la deuxième cavité 20. Le filet externe 84 est réalisé sur une quatrième portion 85 du corps de l'organe régulateur. La quatrième portion 85 comprend un diamètre supérieur à celui de la première portion 80. En d'autres termes, le diamètre externe de l'organe régulateur est décroissant de la tête 68 à l'extrémité libre 69 (soit de la quatrième portion à la troisième portion) suivant l'axe F. De manière avantageuse, le filet externe 84 présente un filet métrique de type 4 (M5). Le diamètre extérieur de l'organe régulateur 65 avec le filet externe est de l'ordre de 4 mm.The regulating
L'organe régulateur 65 pivote autour de l'axe longitudinal X entre sa première position et sa deuxième position. Dans la première position, l'organe régulateur autorise la communication fluidique entre le couloir 104 et la sortie de gaz 4. La première position correspond au cas où le robinet est configuré pour être alimenté par du GN avec une circulation de gaz additionnel du couloir 104 à la sortie de gaz. A cet effet, la première et la deuxième sortie 74, 74' est/sont relié(e)s à l'entrée du troisième canal 67. La premier et/ou la deuxième sortie 74, 74' du passage interne 72 est/sont disposée(s) dans la deuxième partie 20e de la deuxième cavité 20 qui se trouve en communication fluidique avec le troisième canal 67. La sortie 104b du couloir 104 est en communication fluidique avec la deuxième cavité 20 (et en particulier avec la deuxième partie 20e de la deuxième cavité 20). En fonction de la position d'ouverture et de fermeture du robinet correspondant à une position minimale et une position maximale du cône de régulation 21, le premier canal 17 et/ou le deuxième canal 18 et/ou couloir 104 sont reliés et en communication fluidique avec la sortie de gaz 4.The
Dans la deuxième position, l'organe régulateur 65 interrompt la communication fluidique entre le couloir 104 et la sortie de gaz 4. La deuxième position correspond au cas où le robinet est configuré pour être alimenté par du GP et il n'y a pas de circulation de gaz additionnel. Dans ce cas, la troisième portion 82 du corps de l'organe régulateur 65 avec l'entrée 73 engagée au fond de la deuxième cavité 20 suivant l'axe longitudinal. En particulier, la deuxième portion 81 avec au moins une des première et deuxième sorties 74, 74' du corps se trouve au fond 86 de la deuxième partie 20e de la deuxième cavité 20. La hauteur de fermeture h2 de la première portion de surface extérieure 78 est supérieure à la hauteur de fermeture de la sortie 104b du couloir 104l. De même, la deuxième portion de surface extérieure 82 coopère avec une deuxième portion de surface interne de forme et dimension sensiblement correspondante de la deuxième cavité 20. En particulier, la deuxième portion de surface extérieure 82 se trouve dans la troisième partie 20f de la deuxième cavité 20.In the second position, the
Comme nous pouvons le voir sur la
La
La base 92 de l'organe d'armement 90 comprend une première surface 94 et une deuxième surface 95 opposées suivant l'axe G (ou axe longitudinal X en situation d'installation). La première surface 94 comprend des butées 96 qui s'élèvent depuis la base 92 pour délimiter la rotation de l'organe de manœuvre (la tige) entre ses deux positions. Sur la
En référence à la
Le carter 50 recouvre l'organe d'armement 90 en situation d'installation.The
L'organe d'armement 90 comprend également une patte 113 qui s'étend depuis la base (en particulier depuis la deuxième surface 95). La patte 113 s'étend suivant un axe parallèle à l'axe longitudinal et à l'axe G. La patte 113 comprend une extrémité libre 99. Le corps du robinet comprend un deuxième logement 100 d'axe I parallèle à l'axe longitudinal. Le deuxième logement 100 débouche d'une part sur la surface supérieure 13 et d'autre part dans un boyau 106. La patte 113 est logée dans ce deuxième logement 100. L'extrémité libre 99 est destinée à coopérer avec un pion 101 qui est agencé dans ce boyau 106. Le boyau 106 s'étend ici suivant un axe perpendiculaire à l'axe longitudinal.The cocking
L'organe d'armement 50 est réalisé dans un matériau polymère. Un tel matériau permet de réduire les coûts de fabrication du robinet. De manière alternative, l'organe d'armement est réalisé dans un matériau métallique. Un exemple de matériau métallique est l'aluminium ou le zamak.The cocking
Le robinet comprend une pièce mobile montée autour du cône de régulation 21 et qui comprend un crantage 102 destiné à coopérer avec un élément d'engagement mobile. Cette pièce mobile est logée au moins en partie dans le carter 50. Cet élément d'engagement mobile est en particulier au moins solidaire en rotation de l'organe de manœuvre 40. La pièce mobile peut être formée par l'organe d'armement 90. L'élément d'engagement mobile peut être formé par l'ergot 44. En particulier, la
En référence à la
En référence à la
Par ailleurs, en référence aux
Le corps présente une forme générale de parallélépipède rectangle avec une première portion et une deuxième portion. Dans la première portion est formée la chambre 105 de l'électrovanne de sécurité tandis que dans la deuxième portion est formée au moins l'entrée de gaz 3. La sortie de gaz 4 est également prévue dans la deuxième portion. Dans ce cas de figure l'axe de l'entrée de gaz et l'axe J de la chambre 105 sont sensiblement parallèles.The body has the general shape of a rectangular parallelepiped with a first portion and a second portion. In the first portion is formed the
Suivant une alternative, le corps présente une section en forme de V. Dans ce cas, les axes de l'entrée de gaz et de la chambre 105 sont inclinés l'un par rapport à l'autre en formant un angle obtus. Une telle configuration permet un gain de matière dans la réalisation du corps du robinet.According to an alternative, the body has a V-shaped section. In this case, the axes of the gas inlet and of the
Nous allons maintenant présenter le fonctionnement d'un robinet d'alimentation en référence aux
Sur les
Sur la
Sur la
La
Sur la
Sur la
Sur la
Sur la
Claims (16)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2000045A FR3105999B1 (en) | 2020-01-03 | 2020-01-03 | IMPROVED GAS SUPPLY VALVE FOR BURNER OF A GAS COOKING APPLIANCE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3845807A1 true EP3845807A1 (en) | 2021-07-07 |
EP3845807B1 EP3845807B1 (en) | 2022-12-21 |
Family
ID=70614023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20217703.6A Active EP3845807B1 (en) | 2020-01-03 | 2020-12-29 | Improved gas supply valve for a burner of a gas cooking appliance |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3845807B1 (en) |
FR (1) | FR3105999B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023065559A1 (en) * | 2021-10-22 | 2023-04-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Plug valve and combustion device having same |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3255965A (en) | 1965-01-26 | 1966-06-14 | Robertshaw Controls Co | Oven temperature control system |
US4108370A (en) | 1977-02-23 | 1978-08-22 | Robertshaw Controls Company | Fuel control system having by-pass means and parts therefor and the like |
JPH11304158A (en) | 1998-04-24 | 1999-11-05 | Harman Co Ltd | Gas flow rate regulating device for gas cooking stove |
JP2012002294A (en) | 2010-06-17 | 2012-01-05 | Rinnai Corp | Gas valve device |
-
2020
- 2020-01-03 FR FR2000045A patent/FR3105999B1/en not_active Expired - Fee Related
- 2020-12-29 EP EP20217703.6A patent/EP3845807B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3255965A (en) | 1965-01-26 | 1966-06-14 | Robertshaw Controls Co | Oven temperature control system |
US4108370A (en) | 1977-02-23 | 1978-08-22 | Robertshaw Controls Company | Fuel control system having by-pass means and parts therefor and the like |
JPH11304158A (en) | 1998-04-24 | 1999-11-05 | Harman Co Ltd | Gas flow rate regulating device for gas cooking stove |
JP2012002294A (en) | 2010-06-17 | 2012-01-05 | Rinnai Corp | Gas valve device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023065559A1 (en) * | 2021-10-22 | 2023-04-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Plug valve and combustion device having same |
Also Published As
Publication number | Publication date |
---|---|
EP3845807B1 (en) | 2022-12-21 |
FR3105999A1 (en) | 2021-07-09 |
FR3105999B1 (en) | 2022-01-14 |
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