CN202348361U - Air valve driving component of petrol engine and petrol engine comprising same - Google Patents
Air valve driving component of petrol engine and petrol engine comprising same Download PDFInfo
- Publication number
- CN202348361U CN202348361U CN 201120350903 CN201120350903U CN202348361U CN 202348361 U CN202348361 U CN 202348361U CN 201120350903 CN201120350903 CN 201120350903 CN 201120350903 U CN201120350903 U CN 201120350903U CN 202348361 U CN202348361 U CN 202348361U
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- Prior art keywords
- valve rocker
- petrol engine
- rocking arm
- exhaust valve
- rocker arm
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses an air valve driving component of a petrol engine and the petrol engine comprising the air valve driving component. An intake valve rocking arm and an outlet valve rocking arm are respectively provided with embedded grooves correspondingly embedded into the top of the intake valve rocking arm and the top of the outlet valve rocking arm, the intake valve rocking arm and the outlet valve rocking arm respectively pass through rocking arm shafts on the two side walls of the embedded grooves and are hinged with the top of the intake valve rocking arm and the top of the outlet valve rocking arm corresponding to the intake valve rocking arm and the outlet valve rocking arm in a single-degree-of-freedom manner to form a lever structure with the rocking arm shafts as supporting points. The air valve driving component disclosed by the utility model adopts the rocking arms to minimize the movement or swinging distance in each direction, can effectively reduce the failure rate of the rocking arms and reduce maintenance cost, and has high action precision, so as to improve performance and reduce emissions; meanwhile, the air valve driving component can greatly reduce the transverse dimension of the rocking arm seats to reduce the size of a cylinder end and transverse dimension, so as to be more suitable for a small-displacement petrol engine; and the air valve driving component can ensure good sealing performance and smooth action after the intake valve component and the outlet valve component are closed, so as to ensure sealing effect, improve efficiency, and save energy and layout space.
Description
Technical field
The utility model relates to a kind of power engine parts and application thereof, particularly a kind of gasoline engine part and application thereof.
Background technique
Petrol engine is a kind of dynamic power machine that uses gasoline for the fuel.Partly form by cylinder, connecting rod, gas distribution system, oil supply system, lubrication system and ignition system etc.; Cylinder head is provided with intake duct and air outlet flue, and forms the firing chamber face jointly with cylinder, thereby, belong to the parts of petrol engine outbalance.Gasoline act as a fuel with AIR MIXTURES in the firing chamber internal combustion, produce great amount of heat, be used for as driving energy.
The gas distribution system of petrol engine is the necessary parts that guarantee the normal operation of petrol engine, generally comprises intake valve and exhaust valve that said cylinder head is provided with, and the opening and closing of intake valve and exhaust valve are controlled respectively by driving components such as rocker arm assemblies; Said intake valve and exhaust valve are respectively equipped with the Rocker arm assembly that drives its switching.
Rocker arm assembly comprises rocker arm bracket and rocking arm, design and installation for ease, and the structure of more generally using is provided with the tubular seat as rocking arm and is coated at pitman arm shaft and can cooperate around rotational with it, and pitman arm shaft is fixed in rocker arm bracket.This structure is because tubular seat and pitman arm shaft surface of contact are bigger; And the influence of machining accuracy, installation precision and long-time friction; Multi-faceted rocking can appear behind the long-play; Cause the problem that existing inlet and outlet door assembly is not closed completely, is forbidden and action has some setbacks, influence the normal operation of petrol engine.And also can there be the relatively poor problem of adaptability in the pitman arm shaft that is parallel to horizontal plane, particularly for inclined valve; Existing rocking arm sense of rotation and valve event direction are inconsistent; Produce moment of flexure, stressed inconsistent in the time of can causing valve to open and close with traffic direction, influence sealing effect.
For addressing the above problem; A kind of pitman arm shaft occurs and be articulated in the structure in the rocker arm bracket opening, the play or the rolling momentum that can reduce all directions are little, can effectively reduce the rate of fault of rocking arm; Reduce maintenance cost; Multi-faceted phenomenon of rocking also can not occur during long-time the use, operation precision is high, thereby improves performance and reduce discharging.But, because rocker arm bracket open top and be used to hold rocking arm must have bigger transverse dimension; For the less petrol engine of discharge capacity; The cylinder head area is less, can't arrange the rocker arm bracket that transverse dimension is bigger, thereby this structure and be not suitable for the less petrol engine of discharge capacity.
Therefore, need improve, not occur multi-faceted phenomenon of rocking in the time of not only can using for a long time existing petrol engine valve actuation assembly; Guarantee that the inlet and outlet door assembly closes the back good airproof performance, move smooth and easy, thereby the normal operation of assurance petrol engine; Stressed and the inconsistent situation of traffic direction in the time of the valve switching can not occurring; Guarantee sealing effect, simultaneously, can be applicable to float petrol machine.
The model utility content
In view of this, the utility model provides a kind of petrol engine valve actuation assembly and petrol engine thereof, does not occur multi-faceted phenomenon of rocking in the time of not only can using for a long time; Guarantee that the inlet and outlet door assembly closes the back good airproof performance, move smooth and easy, thereby the normal operation of assurance petrol engine; Stressed and the inconsistent situation of traffic direction in the time of the valve switching can not occurring; Guarantee sealing effect, simultaneously, can be applicable to float petrol machine.
The petrol engine valve actuation assembly of the utility model; Comprise inlet valve rocker, exhaust valve rocker arm and be fixedly set in inlet valve rocker seat and exhaust valve rocker arm seat on the cylinder head body; Said inlet valve rocker and exhaust valve rocker arm are respectively equipped with and are used for the corresponding telescoping groove that embeds inlet valve rocker seat top and exhaust valve rocker arm seat top, and it is the lever construction of fulcrum that inlet valve rocker and exhaust valve rocker arm are articulated in by the pitman arm shaft single-degree-of-freedom of passing the telescoping groove two side that the inlet valve rocker seat top corresponding with it and exhaust valve rocker arm seat top form with the pitman arm shaft respectively.
Further; The pitman arm shaft of said inlet valve rocker and the pitman arm shaft of exhaust valve rocker arm radially inwardly are obliquely installed to the top with respect to the cylinder head attachment face, and the angle of inclination of the pitman arm shaft of said inlet valve rocker and the pitman arm shaft of exhaust valve rocker arm is identical with the angle of inclination of pairing intake valve and exhaust valve; This structure is applicable to the inclined valve structure; The pitman arm shaft that is obliquely installed can be adapted to the inclined valve structure and be adapted to the geometrical shape of firing chamber; Be beneficial to and guarantee that rocking arm drives the harmony and the sealing of valve event; Also be beneficial to and guarantee valve timing, the assurance port timing, thus improve performance and reduce discharging.
Further, said inlet valve rocker seat and exhaust valve rocker arm seat and cylinder head body are processed one; Simple and compact for structure, conserve space, and have higher installation strength, and long service life, fabricating cost and assembly cost are low.
Further, the telescoping groove on said inlet valve rocker and the exhaust valve rocker arm is groove, and the telescoping groove of the top of said inlet valve rocker seat and exhaust valve rocker arm seat through correspondence exposes and be respectively equipped with and be provided with the oilhole that connects to pitman arm shaft; Be used to get into lubricant oil,, avoid occurring bite and rub the assurance running precision partially to guarantee good lubrication between inlet valve rocker seat and exhaust valve rocker arm seat and the pitman arm shaft separately.
Further, move closer to the power point by resistance point between said inlet valve rocker and the exhaust valve rocker arm and form angle; Can make the layout of push rod compact, reduce axle and the size of cylinder head body in correct time, make petrol engine cylinder head compact structure volume little, further be applicable to float petrol machine.
The invention also discloses a kind of petrol engine of using petrol engine valve actuation assembly, said petrol engine valve actuation assembly is installed on petrol engine.
The beneficial effect of the utility model: the petrol engine valve actuation assembly and the petrol engine thereof of the utility model, the employing rocker arm bracket embeds the rocker structure of rocking arm, in running; The play of its all directions or rolling momentum are little; Can effectively reduce the rate of fault of rocking arm, reduce maintenance cost, also can not occur multi-faceted phenomenon of rocking when using for a long time; Operation precision is high, thereby improves performance and reduce discharging; Simultaneously, because rocker arm bracket embeds rocking arm, thereby, can reduce the transverse dimension of rocker arm bracket greatly, to reduce cylinder head and transverse dimension, more can be applicable to float petrol machine; Guarantee that the inlet and outlet door assembly closes the back good airproof performance, move smooth and easy, thereby guarantee sealing effect, thereby raise the efficiency energy saving, and saving arrangement space.
The valve actuator of the utility model is used for petrol engine and is applied to motorcycle or common universal machine, and energy saving, reduction consume, and practices thrift arrangement space.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is that the utility model cylinder head rocker arm bracket is arranged schematic representation;
Fig. 3 is a pitman arm shaft and the sectional view that cooperates of rocker arm bracket.
Embodiment
Fig. 1 is the structural representation of the utility model; Fig. 2 is that the utility model cylinder head rocker arm bracket is arranged schematic representation; Fig. 3 is a pitman arm shaft and the sectional view that cooperates of rocker arm bracket; As shown in the figure: the petrol engine valve actuation assembly of present embodiment; Comprise inlet valve rocker 13, exhaust valve rocker arm 7 and be fixedly set in inlet valve rocker seat 12 and exhaust valve rocker arm seat 6 on the cylinder head body 1; Said inlet valve rocker 13 is respectively equipped with exhaust valve rocker arm 7 and is used for the corresponding telescoping groove that embeds inlet valve rocker seat 12 tops and exhaust valve rocker arm seat 6 tops, and it is the lever construction of fulcrum that inlet valve rocker 13 and exhaust valve rocker arm 7 are articulated in by the pitman arm shaft that passes the telescoping groove two side (inlet valve rocker axle 14 and exhaust valve rocker arm axle 10) single-degree-of-freedom that inlet valve rocker seat 12 tops corresponding with it and 6 tops of exhaust valve rocker arm form with the pitman arm shaft respectively; As shown in the figure; Lever construction comprises resistance point and power point, and the power point of two lever constructions is by each self-corresponding top rod driving, and the resistance point of two lever constructions is respectively to being applied to open or close intake valve 11 or exhaust valve 4; Form stable driving structure, for reducing rotational resistance; Said inlet valve rocker 13 is groove with telescoping groove on the exhaust valve rocker arm 7, and the top of said inlet valve rocker seat 12 and exhaust valve rocker arm seat 6 is exposed through the telescoping groove corresponding with it and is respectively equipped with the oilhole (being intake rocker seat oilhole 8 and exhaust rocker arm seat oilhole 2 among the figure) that connects to pitman arm shaft; Be used to make lubricant oil to get into the rubbing surface between inlet valve rocker axle 14 and exhaust valve rocker arm axle 10 and inlet valve rocker seat 12 and the exhaust valve rocker arm seat 6, reduce friction factor, increase the running precision and the stability of rocking arm; Be provided with the hinged rocking arm of structure of telescoping groove through rocking arm, occupy less space, be applicable to that small volume, small displacement engine use, and avoid because the engine cylinder head area is not suitable for the structure that installs and fixes the hinged rocking arm of rocker arm bracket for a short time; The rocking arm of the utility model is in running, and the play of its all directions or rolling momentum are little, can effectively reduce the rate of fault of rocking arm, reduces maintenance cost; The reasonable Arrangement rocking arm is come in the position that is adapted to intake and exhaust, also is beneficial to guarantee to guarantee port timing valve timing, thereby improves performance and reduce discharging.
In the present embodiment, to gas-entered passageway 5 tilt, exhaust valve 4 to exhaust passage 9 tilt, forms the inclined valve structure by bottom to top to intake valve 11 by bottom to top; Two pitman arm shafts (inlet valve rocker axle 14 and exhaust valve rocker arm axle 10) radially inwardly are obliquely installed to the top with respect to cylinder head body attachment face, radially inwardly be meant by around the cylinder head to the direction of its radial centre lines; The angle of inclination of said pitman arm shaft (inlet valve rocker axle 14 and exhaust valve rocker arm axle 10) is corresponding identical with the angle of inclination of intake valve and exhaust valve; The pitman arm shaft that is obliquely installed can be adapted to the inclined valve structure and be adapted to the geometrical shape of composite sphere firing chamber, is beneficial to guarantee that rocking arm drives the harmony and the sealing of valve event.
In the present embodiment, said inlet valve rocker seat 12 is processed one with exhaust valve rocker arm seat 6 and cylinder head body 1; Simple and compact for structure, conserve space, and have higher installation strength, and long service life, fabricating cost and assembly cost are low.
In the present embodiment, move closer to the power point by resistance point between said inlet valve rocker 13 and the exhaust valve rocker arm 7 and form angle; The resistance point is the point that the lever construction rocking arm is used to drive valve switch; The power point is that the lever construction rocking arm is by the point of top rod driving; This structure makes between the power point distance less, can make the layout of push rod compact, reduces axle and the size of cylinder head body in correct time; Make petrol engine cylinder head compact structure volume little, further be applicable to float petrol machine.
The invention also discloses a kind of petrol engine of using petrol engine valve actuation assembly; Said petrol engine valve actuation assembly is installed on petrol engine; Said petrol engine is applied to motorcycle or universal machine, and universal machine comprises pump, blower fan, compressor, subtracts variable-speed motor, generator or the like.
Explanation is at last; Above embodiment is only unrestricted in order to the technological scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technological scheme of the utility model; And not breaking away from the aim and the scope of the utility model technological scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (6)
1. petrol engine valve actuation assembly; Comprise inlet valve rocker, exhaust valve rocker arm and be fixedly set in inlet valve rocker seat and exhaust valve rocker arm seat on the cylinder head body; It is characterized in that: said inlet valve rocker and exhaust valve rocker arm are respectively equipped with and are used for the corresponding telescoping groove that embeds inlet valve rocker seat top and exhaust valve rocker arm seat top, and it is the lever construction of fulcrum that inlet valve rocker and exhaust valve rocker arm are articulated in by the pitman arm shaft single-degree-of-freedom of passing the telescoping groove two side that the inlet valve rocker seat top corresponding with it and exhaust valve rocker arm seat top form with the pitman arm shaft respectively.
2. petrol engine valve actuation assembly according to claim 1; It is characterized in that: the pitman arm shaft of said inlet valve rocker and the pitman arm shaft of exhaust valve rocker arm radially inwardly are obliquely installed to the top with respect to the cylinder head attachment face, and the angle of inclination of the pitman arm shaft of said inlet valve rocker and the pitman arm shaft of exhaust valve rocker arm is identical with the angle of inclination of pairing intake valve and exhaust valve.
3. petrol engine valve actuation assembly according to claim 2 is characterized in that: said inlet valve rocker seat and exhaust valve rocker arm seat and cylinder head body are processed one.
4. petrol engine valve actuation assembly according to claim 3; It is characterized in that: the telescoping groove on said inlet valve rocker and the exhaust valve rocker arm is groove, and the telescoping groove of the top of said inlet valve rocker seat and exhaust valve rocker arm seat through correspondence exposes and be respectively equipped with and be provided with the oilhole that connects to pitman arm shaft.
5. petrol engine valve actuation assembly according to claim 4 is characterized in that: moved closer to the power point by resistance point between said inlet valve rocker and the exhaust valve rocker arm and form angle.
6. an application rights requires the petrol engine of the described petrol engine valve actuation of 1 to 5 arbitrary claim assembly, and it is characterized in that: said petrol engine valve actuation assembly is installed on petrol engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120350903 CN202348361U (en) | 2011-09-19 | 2011-09-19 | Air valve driving component of petrol engine and petrol engine comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120350903 CN202348361U (en) | 2011-09-19 | 2011-09-19 | Air valve driving component of petrol engine and petrol engine comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348361U true CN202348361U (en) | 2012-07-25 |
Family
ID=46537370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120350903 Expired - Lifetime CN202348361U (en) | 2011-09-19 | 2011-09-19 | Air valve driving component of petrol engine and petrol engine comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348361U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625918A (en) * | 2017-03-24 | 2018-10-09 | 本田技研工业株式会社 | The valve device of multicylinder engine |
| CN108843420A (en) * | 2018-07-17 | 2018-11-20 | 力帆实业(集团)股份有限公司 | Rocker arm mounting structure suitable for general-purpose engine |
| CN109057984A (en) * | 2018-07-17 | 2018-12-21 | 力帆实业(集团)股份有限公司 | Cylinder head for general-purpose engine |
-
2011
- 2011-09-19 CN CN 201120350903 patent/CN202348361U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625918A (en) * | 2017-03-24 | 2018-10-09 | 本田技研工业株式会社 | The valve device of multicylinder engine |
| US10626822B2 (en) | 2017-03-24 | 2020-04-21 | Honda Motors Co., Ltd. | Valve operating system for multicylinder engine |
| CN108625918B (en) * | 2017-03-24 | 2020-10-30 | 本田技研工业株式会社 | Valve gear of multi-cylinder engine |
| CN108843420A (en) * | 2018-07-17 | 2018-11-20 | 力帆实业(集团)股份有限公司 | Rocker arm mounting structure suitable for general-purpose engine |
| CN109057984A (en) * | 2018-07-17 | 2018-12-21 | 力帆实业(集团)股份有限公司 | Cylinder head for general-purpose engine |
| CN108843420B (en) * | 2018-07-17 | 2021-04-27 | 力帆实业(集团)股份有限公司 | Rocker arm mounting structure suitable for general internal combustion engine |
| CN109057984B (en) * | 2018-07-17 | 2021-05-28 | 力帆实业(集团)股份有限公司 | Cylinder head for a universal internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |