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EP0526508B1 - Buse rotative pour un appareil de nettoyage a haute pression - Google Patents

Buse rotative pour un appareil de nettoyage a haute pression Download PDF

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Publication number
EP0526508B1
EP0526508B1 EP91908065A EP91908065A EP0526508B1 EP 0526508 B1 EP0526508 B1 EP 0526508B1 EP 91908065 A EP91908065 A EP 91908065A EP 91908065 A EP91908065 A EP 91908065A EP 0526508 B1 EP0526508 B1 EP 0526508B1
Authority
EP
European Patent Office
Prior art keywords
casing
nozzle body
longitudinal axis
rotor
liquid
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.)
Expired - Lifetime
Application number
EP91908065A
Other languages
German (de)
English (en)
Other versions
EP0526508A1 (fr
Inventor
Johann G. Wesch
Gerhard Dellert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP0526508A1 publication Critical patent/EP0526508A1/fr
Application granted granted Critical
Publication of EP0526508B1 publication Critical patent/EP0526508B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
    • B05B1/1627—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock
    • B05B1/1636—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve elements
    • B05B1/1645—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve elements the outlets being rotated during selection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0409—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements
    • B05B3/0463—Rotor nozzles, i.e. nozzles consisting of an element having an upstream part rotated by the liquid flow, and a downstream part connected to the apparatus by a universal joint

Definitions

  • the invention relates to a rotor nozzle for a high-pressure cleaning device with a cylindrical housing, which has a pan-shaped, centrally perforated depression in an end wall, with a nozzle body provided with a through-bore, which is supported with a spherical end in the pan-shaped depression, in the longitudinal direction extends a part of the housing and has an outer diameter which is smaller than the inner diameter of the housing, and with a tangential opening into the housing for a liquid, through which the liquid in the housing can be rotated about the longitudinal axis, so that the nozzle body rotates together with the rotating liquid and thereby lies against the inner wall of the housing with a contact surface on its circumference, the longitudinal axis of the nozzle body being inclined relative to the longitudinal axis of the housing.
  • a mechanically relatively complex method provides for a rotor to be rotatably mounted in a housing about the longitudinal axis of the housing, which rotor is driven by means of the liquid jet entering the housing.
  • a nozzle body which can also be rotated about the longitudinal axis of the housing and is arranged at an angle to the longitudinal axis, is driven via a gear, for example a gearwheel gear (EP-A2-153129).
  • a gear transmission leads to considerable design effort, there is also the risk that only a short service life can be achieved by continued use of the intermeshing gear parts during continuous use.
  • a structurally simple, yet functional rotor nozzle is known from DE-OS 31 50 879.
  • a pan-supported nozzle body is provided in the housing, which is placed in a circulation on a conical shell in that it is carried along by a liquid column rotating around the longitudinal axis inside the housing.
  • the liquid column is excited to rotate about the longitudinal axis by the tangential inlet of the liquid into the interior of the housing.
  • this rotor nozzle is to be charged with liquid under high pressure.
  • the liquid column rotating about the longitudinal axis acts in particular in the front region of the nozzle body, in which it is mounted in the central, pan-shaped depression, as a rotary drive for the nozzle body, so that it is set into a strong self-rotation about its own longitudinal axis.
  • This self-rotation about the longitudinal axis is superimposed on the movement of the nozzle body on the conical surface, and this self-rotation leads to the jet emerging from the nozzle body also rotating about its longitudinal axis.
  • the jet fans out very strongly so that the cleaning effect diminishes at a short distance from the nozzle body.
  • the increased friction between the nozzle body and the inner wall of the housing in the area of the contact surface leads to the nozzle body is at least partially rolled on the inner wall.
  • This rolling movement leads to a rotation of the nozzle body about its own axis, whereby, however, the direction of rotation is opposite to the direction of rotation which forces the rotating liquid column inside the housing onto the nozzle body. Due to the increased friction, it is therefore possible to counteract the forced rotation caused by the rotating liquid column and in this way largely to avoid the undesired rotation of the nozzle body.
  • the nozzle body can be made of a corresponding material, for example an elastomeric plastic.
  • the nozzle body in the region of the contact surface with a material whose coefficient of friction compared to the material of the housing inner wall is> 0.25 and in particular> 0.5; a corresponding coating can of course also carry the inner wall of the housing.
  • This coating can have the shape of an O-ring, which is inserted into a circumferential groove of the nozzle body or a circumferential groove of the housing and consists of an elastomer material that has the required friction values.
  • This solution has the additional advantage that when the contact surface area is worn, the O-ring forming the contact surface can be easily replaced.
  • radially protruding braking elements are arranged, which are preferably walls which are arranged in radial planes of the housing and surround the range of motion of the nozzle body.
  • Such braking elements counteract the rotational movement of the liquid around the longitudinal axis of the housing in the area near the outlet, and precisely in this area the rotation of the liquid column leads to the undesired self-rotation of the nozzle body.
  • These braking elements also act in such a way that the undesirable excitation of self-rotation of the nozzle body is reduced. This measure is particularly advantageous in combination with the increase in the coefficient of friction in the contact area, since both effects act in the same direction, however, these braking elements can also develop the effect mentioned for themselves, that is, without increasing the friction in the contact area.
  • the inlet is arranged on the side facing away from the pan-shaped recess of the housing in a region of the housing into which the nozzle body supported by the pan-shaped recess does not extend. If an inlet opens into the housing in an area in which the nozzle body is located, this incoming flow can also increase the self-rotation of the nozzle body. By spatially separating the inlet of the liquid and the nozzle body, this undesirable stimulation of the self-rotation of the nozzle body is largely avoided.
  • the tangential Inlet must be arranged both in the jacket and in the bottom of the housing, it is important in this context that the incoming liquid does not directly touch the side wall of the nozzle body
  • the length of the nozzle body is preferably> 3/4 of the inside length of the housing; with shorter nozzle bodies there is a risk that the nozzle bodies will vibrate and produce an unsteady, fanned out jet.
  • the end wall of the housing opposite the pan-shaped recess carries a central projection which projects into the interior of the housing and which forms an annular space in the interior of the housing, into which the end of the nozzle body facing away from the spherical end is immersed when it engages with it supports the spherical end in the pan-shaped recess.
  • Such an annular space, into which the tangential inlet opens, produces a rotation of the liquid column in the interior of the housing, the liquid particles preferably being in the area near the wall.
  • this arrangement of the projection results in a pre-orientation of the nozzle body even before a liquid flow begins, so that when the liquid flow is switched on, the nozzle body already assumes an inclined position and is thereby pressed securely against the inner wall of the housing as soon as the liquid flows through the housing.
  • the nozzle body has a smaller outer diameter at the end immersed in the annular space than at the remaining part of its overall length, for example the nozzle body can only carry a central extension pin at its end opposite the spherical end, which protrudes into the annular space.
  • a second inlet for liquid opens into the housing parallel to the longitudinal axis, and a distributor is provided which optionally supplies the liquid to one or the other inlet or to both inlets at the same time.
  • a distributor is provided which optionally supplies the liquid to one or the other inlet or to both inlets at the same time.
  • a further nozzle body is arranged stationary next to the housing, which is connected to a liquid supply, which also leads to the inlet or the inlets of the housing, and that a switchover the flow path to the stationary nozzle body is optional releases or closes. In this way, the user can choose whether he wants to generate a rotating beam or a stationary beam.
  • adjustable support surfaces are provided in the interior of the housing, on which the nozzle body rests with its contact surface, and if the angle of inclination of the longitudinal axis of the nozzle body relative to the longitudinal axis of the housing is different at different positions of the support surfaces. Simply by moving the support surfaces, it is therefore possible to vary the opening angle of the circulating point beam.
  • the rotor nozzle 1 shown in Figure 1 is screwed onto the jet pipe 2 of a high-pressure cleaner not shown in the drawing;
  • This jet pipe can be connected to the pressure-side outlet of a high-pressure pump by means of a flexible high-pressure line and then supplies a cleaning liquid which may have been mixed with chemicals under high pressure, for example below 100 bar.
  • a hood-shaped base part 3 is screwed onto the end of the jet pipe 2 and has a step-like narrowing interior 4, in the end part of which the jet pipe 2 opens.
  • the base part 3 forms the base 5 of a cylindrical interior 6 of a housing 7 screwed onto the base part 3, the interior 6 of which narrows conically towards the end wall 8 opposite the base 5.
  • a central opening 9 which is surrounded by a pan-shaped depression 10, that is to say a shoulder which surrounds the opening 9 on the inside of the housing 7 in a ring shape and has a circular cross section in cross section.
  • the housing 7 is overlaid by a hood 11 which is open towards the front and extends to the free end of the housing 7 to such an extent that it protrudes beyond the end wall 8.
  • channels 12 enter the base part 3 in the radial direction, which lead into the interior 6 with a component running tangentially in the circumferential direction. You get there into an annular space 13 adjacent to the base 5, which is formed between a central projection 14 projecting into the interior 6 and the inner wall 15 of the interior 6.
  • an essentially tubular nozzle body 16 Arranged in the interior of the interior is an essentially tubular nozzle body 16 with a longitudinal opening 17 which is spherical at its end facing the end wall 8. This spherical end 18 dips into the pan-shaped recess 10 and is supported in this. At its opposite end, the nozzle body 16 carries a central, pin-shaped extension 19 which plunges into the annular space 13.
  • an O-ring 22 made of elastomeric material is inserted in a circumferential groove, which is not clearly visible from the drawing, and which, when the nozzle body is correspondingly inclined, contacts the inner wall 15 of the interior 6 creates.
  • the O-ring consists of an elastomer material whose coefficient of friction is relatively large compared to the material of the inner wall 15, for example> 0.25 and in particular> 0.5.
  • liquid is introduced into the interior 4 under high pressure via the jet pipe 2 and from there passes into the interior 6 via the channels 12.
  • the liquid passes through the corresponding guidance of the channels 12 tangentially to the circumferential direction in the interior 6, so that a liquid column rotating about the longitudinal axis is formed within the interior 6.
  • this liquid column also entrains the nozzle body 16, which in this way rotates along a conical surface, the opening angle being determined by the contact of the O-ring 22 on the inner wall 15 of the interior 6.
  • the liquid column rotating about the longitudinal axis of the housing 7 tries to force the nozzle body 16 to rotate in the same direction, but in the area of the O-ring 22 the nozzle body experiences an opposite drive torque due to the rolling movement on the inner wall 15 of the interior 6 , whereby the two opposite tendencies largely cancel each other out.
  • the emerging liquid jet thus remains compact over a longer distance and does not fan out as a result of a high self-rotation.
  • the rotor nozzle of FIG. 2 molded into the hood 11, carries a stationary nozzle body 25 which is held on the hood 11 laterally offset with respect to the housing 7.
  • a third peripheral seal 31 is arranged upstream of the two peripheral seals 29 and 30.
  • the hood 11 can be displaced in the axial direction relative to the housing 7 in the exemplary embodiment of FIG. 2, so that a connecting line 26 arranged in the radial direction and arranged in the hood 11 is connected via an axial connecting line 27 leads to the stationary nozzle body 25, can optionally be arranged between the peripheral seals 29 and 30 or between the peripheral seals 30 and 31.
  • a connecting line 26 arranged in the radial direction and arranged in the hood 11 is connected via an axial connecting line 27 leads to the stationary nozzle body 25, can optionally be arranged between the peripheral seals 29 and 30 or between the peripheral seals 30 and 31.
  • the connecting line 26 ends bluntly on the outer jacket of the jet pipe 2, the bore 28, however, is sealed off from the hood 11 covering it by the two adjacent peripheral seals 29 and 30.
  • a spring-loaded locking ball 32 in the hood 11 which can dip into an opening 33 in the jet pipe 2 and thus allows the hood 11 to be displaced relative to the housing 7 only when a certain force is exceeded.
  • the user has the option of choosing between the delivery of a rotating point beam rotating on a conical jacket and the delivery of a stationary beam by moving the hood 11 relative to the housing 7. If the connecting line 26 and the radial bore 28 are in alignment with one another, the vast majority of the liquid only reaches the nozzle body 25, since the flow resistance through the interior 6 is significantly greater than that when passing through the stationary nozzle body 25. If the bore 28 closed, on the other hand, the entire amount of liquid passes through the interior 6 in the manner described with reference to the exemplary embodiment in FIG. 1, where it produces a compact point jet running around a cone jacket.
  • the interior space 6 is cylindrical over its entire length; in the downstream region, the interior space also has walls 35 which are arranged in radial planes and which run with their inner edge 36 obliquely inward in the direction of flow. These walls 35 form a vortex brake for the liquid column rotating in the interior around the longitudinal axis, that is to say they brake the rotational movement of the liquid column in this area close to the outlet. This leads to less self-rotation being transmitted to the nozzle body 16 in this area, that is to say the tendency for undesired self-rotation of the nozzle body about its longitudinal axis is reduced by this measure.
  • This measure is particularly advantageous in combination with the driving force generated by the rolling movement of the nozzle body, which counteracts the undesired intrinsic rotation, which is favored by the increased friction value of the system material, but this measure can also be used in all exemplary embodiments alone to counteract the undesired intrinsic rotation of the nozzle body 16 to suppress its longitudinal axis.
  • walls extending in radial planes are used as a vortex brake, other projections projecting into the interior could also be used for this, so that in the region of the interior close to the outlet it alternately has a large and a small inside diameter. It is essential that the rotation of the liquid column in the interior is reduced only in the area close to the outlet, since this rotation in the area remote from the outlet is necessary in order to take the nozzle body with it and to let it circulate on the surface of the cone.
  • FIG. 3 again largely corresponds to that of FIG. 1, corresponding parts therefore also have the same reference numerals here.
  • the embodiment of Figure 3 differs from that 1 essentially by the fact that from the interior 4 of the base part 3 emerge both those channels 42 which open tangentially into the interior 6 in the circumferential direction, and also those channels 43 which open into the interior 6 in the axial direction.
  • the channels 42 emerge from this in the outer peripheral region of the interior 4, namely upstream of a step 44 which separates the upstream part of the interior 4 with a larger diameter from the downstream part 45 with a smaller diameter.
  • the channel 43, which axially enters the interior 6, emerges from this part 45.
  • the jet pipe 2 is closed on the end face and there has a central projection 46 which is sealingly applied to the step 44, so that the projection 46 separates the downstream part 45 of the interior 4 from the rest of the interior.
  • the interior of the jet pipe 2 is connected to the part of the interior 4 arranged upstream of the step 44 via bores 47 which are guided obliquely outwards.
  • the liquid which is brought in via the jet pipe 2 passes through the channels 42 which open into the interior 6 in the circumferential direction, so that a liquid column rotating about its longitudinal axis is formed in the interior 6 in the manner described, which column forms the nozzle body 16 takes along and thus forms a compact jet rotating on a cone jacket.
  • the jet pipe 2 can be moved in the axial direction relative to the base part 3 by screwing it out of the base part 3.
  • the projection 46 lifts off from the step 44 and thus establishes a connection to part 45 of the interior 4 via an annular gap formed between the step 44 and the projection 46.
  • Liquid brought in through the jet pipe 2 can now additionally enter the interior via the axial channel 43, which does not produce any rotation of the liquid column in the interior 6.
  • a bypass is thus opened, through which a part of the liquid which has been brought through passes without contributing to the conical surface circulation movement of the compact jet.
  • the ratio of the division results on the one hand from the size of the axial displacement of the jet pipe 2 relative to the base part 3, that is to say by more or less unscrewing the jet tube 2 from the base part 3, and on the other hand through the flow cross sections of the channels 42 and 43. If one If a large proportion of the supplied liquid enters the interior space 6 via the channel 43, the rotation of the liquid column in the interior space 6 is weakened, with the result that the rotational speed of the nozzle body 16 is reduced. In this way, the operator can influence the rotational speed of the point beam generated.
  • FIG. 4 The exemplary embodiment shown in FIG. 4 is also very similar to that of FIG. 1, so that corresponding parts also have the same reference numbers here.
  • channels 52 are provided, which open tangentially to the circumferential direction in the interior 6, and channels 53, which open axially.
  • the channel 53 emerges in the radial direction from the interior 4, in the area of the outlet is a sealing valve body 51 guided across the interior 4, which closes the channel 53 when it is fully inserted, but opens it when it is inserted is pulled out.
  • the immersion depth of the needle valve body 51 is determined by its abutment on an eccentric control track 54, which is located on the inside of the hood 11 rotatably arranged on the base part 3. In the exemplary embodiment shown, this extends only over the height of the base part 3.
  • the housing 7 is not screwed onto the base part 3, but screwed into it, but the rest of the construction is similar, since in this exemplary embodiment there is also a nozzle body 16 in the interior 6, which has a spherical end 18 in the pan-shaped depression 10 rests and rotates along the inside wall 6 along a cone shell by the liquid column rotating about the longitudinal axis in the interior 6.
  • No central projection 14 is provided in the bottom part, but the bottom 5 is flat.
  • a support ring 55 is arranged in the interior 6, which carries an obliquely inward-facing support surface 56.
  • the upper edge 57 of the nozzle body 16 lies against this supporting surface during its conical casing circulation movement on, whereby this system limits the maximum inclination of the nozzle body.
  • the support ring 55 is mounted displaceably in the axial direction in the interior 6.
  • push rods 58 passing through the end wall 8 are supported on the ring 55 and lie with their outer end on a slideway 60 on the inside of a hood 59 overlapping the housing 7, which is screwed onto the housing 7 and thus by twisting in the axial direction can be moved relative to the housing 7.
  • the hood 59 is screwed in further, it pushes the push rods 58 into the interior 6 and thereby displaces the support ring 55 against the direction of flow of the liquid.
  • the user can control the ratio of the liquid which rotates with component in the circumferential direction into the interior 6 or only in the axial direction by rotating the hood 11 and thus the control path 54, that is to say thereby the circulation speed can be described regulate the nozzle body 16.
  • the hood 59 is the Opening angle adjustable, it being advantageous to let the flow essentially enter through the axial channels 53 when the opening angle of the nozzle body 16 tends towards 0, in order to avoid an undesired rotation of the nozzle body and thus also an undesirable fanning out of the compact jet.

Landscapes

  • Nozzles (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (12)

  1. Buse à rotor pour un appareil de nettoyage à haute pression, comportant un boîtier (7) qui présente dans une paroi frontale un évidement (10) en forme de coussinet à percement central ; un corps de buse (16) pourvu d'un alésage traversant, qui prend appui avec son extrémité réalisée en forme sphérique dans l'évidement en forme de coussinet, qui s'étend en direction longitudinale sur une partie du boîtier et présente un diamètre extérieur qui est inférieur au diamètre intérieur du boîtier ; et comportant un orifice d'admission de liquide débouchant de manière tangentielle dans le boîtier et à travers lequel le liquide peut être mis en rotation autour de l'axe longitudinal dans le boîtier de sorte que le corps de buse tourne avec le liquide en rotation et vient ici en contact sur la paroi intérieure du boîtier avec une surface d'appui (22) sur sa périphérie, l'axe longitudinal du corps de buse (16) étant incliné par rapport à l'axe longitudinal du boîtier, caractérisé en ce que la surface d'appui (22) du corps de buse (16) est constituée par un matériau dont le coefficient de friction est > 0,25 par rapport au matériau de la paroi intérieure (15) du boîtier.
  2. Buse à rotor selon la revendication 1, caractérisé en ce que dans la zone de la surface d'appui, le corps de buse (16) est revêtu avec un matériau dont le coefficient de friction est > 0,25 par rapport au matériau de la paroi intérieure du boîtier.
  3. Buse à rotor selon la revendication 1, caractérisé en ce que le corps de buse (16) porte dans la zone des surfaces d'appui un anneau torique (22) en un matériau élastomère qui forme ces surfaces d'appui.
  4. Buse à rotor selon l'une quelconque des revendications précédentes, caractérisée en ce que dans la zone de l'évidement (10) en forme de coussinet sont agencés des éléments de freinage (35) faisant saillie radialement hors de la paroi intérieure (15) du boîtier.
  5. Buse à rotor selon la revendication 4, caractérisé en ce que les éléments de freinage (35) sont des parois qui sont agencées dans les plans radiaux du boîtier (7) et entourent la zone de mouvement du corps de buse (16).
  6. Buse à rotor selon l'une quelconque des revendications précédentes, caractérisée en ce que l'admission (12; 42; 52) est agencée à l'extrémité détournée de l'évidement (10) en forme de coussinet du boîtier (7) dans une zone du boîtier (7) dans laquelle le corps de buse (16) en appui sur l'évidement (10) en forme de coussinet ne parvient pas.
  7. Buse à rotor selon la revendication 6, caractérisé en ce que la longueur du corps de buse (16) est > 3/4 de la longueur intérieure du boîtier.
  8. Buse à rotor selon l'une quelconque des revendications précédentes, caractérisée en ce que la paroi (5) de fond du boîtier (7) opposée à l'évidement (10) en forme de coussinet porte un épaulement (14) central faisant saillie à l'intérieur (6) du boîtier, qui forme une chambre annulaire (13) à l'intérieur (6) du boîtier, dans laquelle plonge l'extrémité (21) du corps de buse (16) opposée à l'extrémité (18) en forme sphérique lorsque ledit corps de buse prend appui avec son extrémité (18) en forme sphérique dans l'évidement (10) en forme de coussinet.
  9. Buse à rotor selon la revendication 8, caractérisé en ce que le corps de buse (16) présente sur son extrémité plongeant dans la chambre annulaire (13) un diamètre extérieur plus faible que sur tout le reste de sa longueur.
  10. Buse à rotor selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une seconde admission (43; 53) pour le liquide débouche parallèlement à l'axe longitudinal dans le boîtier (7), et en ce qu'il est prévu un distributeur (28; 51) qui amène le liquide au choix à l'une ou l'autre des admissions, ou bien aux deux admissions simultanément.
  11. Buse à rotor selon l'une quelconque des revendications précédentes, caractérisée en ce qu'à côté du boîtier (7) est agencé un autre corps de buse (25) stationnnaire qui est en liaison avec une amenée de liquide (28, 26, 27) qui mène également à l'admission ou aux admissions (12) du boîtier (7), et en ce qu'il est prévu qu'un moyen de commutation libère ou ferme au choix la voie d'écoulement vers le corps de buse (25) stationnaire.
  12. Buse à rotor selon l'une quelconque des revendications précédentes, caractérisée en ce qu'à l'intérieur du boîtier (7) sont prévues des surfaces d'appui (56) réglables sur lesquelles repose le corps de buse (16) avec sa surface d'appui (arête 57) et en ce que l'angle d'inclinaison de l'axe longitudinal du corps de buse (16) est différent de l'axe longitudinal du boîtier (7) lorsque les surfaces d'appui (56) ont différentes positions.
EP91908065A 1990-04-27 1991-04-15 Buse rotative pour un appareil de nettoyage a haute pression Expired - Lifetime EP0526508B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4013446A DE4013446C1 (fr) 1990-04-27 1990-04-27
DE4013446 1990-04-27
PCT/EP1991/000714 WO1991016989A1 (fr) 1990-04-27 1991-04-15 Buse rotative pour un appareil de nettoyage a haute pression

Publications (2)

Publication Number Publication Date
EP0526508A1 EP0526508A1 (fr) 1993-02-10
EP0526508B1 true EP0526508B1 (fr) 1995-08-09

Family

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Family Applications (1)

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EP91908065A Expired - Lifetime EP0526508B1 (fr) 1990-04-27 1991-04-15 Buse rotative pour un appareil de nettoyage a haute pression

Country Status (7)

Country Link
US (1) US5328097A (fr)
EP (1) EP0526508B1 (fr)
AT (1) ATE126102T1 (fr)
CA (1) CA2080696C (fr)
DE (1) DE4013446C1 (fr)
DK (1) DK0526508T3 (fr)
WO (1) WO1991016989A1 (fr)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1243658B (it) * 1990-10-18 1994-06-16 Interpump Dispositivo per emettere un getto di liquido con asse rotante su una superficie conica.
DE9108507U1 (de) * 1991-07-10 1991-11-07 Anton Jäger Montagebau, 7913 Senden Rotordüse für ein Hochdruckreinigungsgerät
DE4129026C1 (fr) * 1991-08-31 1993-03-04 Alfred Kaercher Gmbh & Co, 7057 Winnenden, De
DE4221587C2 (de) * 1992-07-01 1994-07-14 Anton Jaeger Rotordüse, insbesondere für ein mit Reinigungsflüssigkeit arbeitendes Hochdruckreinigungsgerät
DE4319743A1 (de) * 1993-06-15 1994-12-22 Anton Jaeger Rotordüse für ein Hochdruckreinigungsgerät
DE4433646C2 (de) * 1993-09-29 1996-10-10 Anton Jaeger Rotordüse, insbesondere für ein Hochdruckreinigungsgerät
DE4340184A1 (de) * 1993-11-25 1995-06-01 Anton Jaeger Spritzdüse, insbesondere für Hochdruckreinigungsgeräte
EP0762941B1 (fr) * 1994-05-30 1998-08-19 Alfred Kärcher GmbH & Co. Ajutage rotatif pour appareils de nettoyage a haute pression
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Also Published As

Publication number Publication date
EP0526508A1 (fr) 1993-02-10
WO1991016989A1 (fr) 1991-11-14
ATE126102T1 (de) 1995-08-15
DE4013446C1 (fr) 1991-05-08
DK0526508T3 (da) 1995-09-25
CA2080696C (fr) 1998-08-18
CA2080696A1 (fr) 1991-10-28
US5328097A (en) 1994-07-12

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