EP0534983B1 - Appareil de nettoyage a haute pression - Google Patents

Appareil de nettoyage a haute pression Download PDF

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Publication number
EP0534983B1
EP0534983B1 EP91908164A EP91908164A EP0534983B1 EP 0534983 B1 EP0534983 B1 EP 0534983B1 EP 91908164 A EP91908164 A EP 91908164A EP 91908164 A EP91908164 A EP 91908164A EP 0534983 B1 EP0534983 B1 EP 0534983B1
Authority
EP
European Patent Office
Prior art keywords
section
jet pipe
outlet
pressure
nozzle
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
EP91908164A
Other languages
German (de)
English (en)
Other versions
EP0534983A1 (fr
Inventor
Eberhard Veit
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 EP0534983A1 publication Critical patent/EP0534983A1/fr
Application granted granted Critical
Publication of EP0534983B1 publication Critical patent/EP0534983B1/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
    • B05B1/12—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means capable of producing different kinds of discharge, e.g. either jet or spray
    • 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
    • B05B1/1654—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 about an axis parallel to the liquid passage in the stationary valve element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • B08B3/028—Spray guns
    • 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
    • B05B1/1609—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 lift valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/0223—Electric motor pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/027—Pump details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/0282—Safety devices

Definitions

  • the invention relates to a high-pressure cleaning device with a high-pressure pump driven by an electric motor, a jet pipe connected to the pressure line of the high-pressure pump, which is provided on the output side with a nozzle, and with a thermal engine shutdown which switches it off when a maximum temperature of the engine is exceeded.
  • the electric motor driving the high-pressure pump is cooled by the conveyed cleaning liquid.
  • the devices are designed in such a way that an equilibrium state occurs at maximum engine power, in particular at high delivery pressure, in which the temperature of the engine does not exceed a certain value. If this value is exceeded by a certain span, the motor is normally switched off due to this temperature rise, so that damage is avoided.
  • liquid jets emitted by such high-pressure cleaning devices via the jet pipes have a particularly good cleaning effect if these jets are compact and hit the surface to be cleaned under high pressure. This cleaning effect diminishes very quickly with decreasing distance from the outlet from the jet pipe.
  • the engine shutdown temperature is selected to be above the equilibrium temperature, namely over a certain safety range, over certain To absorb fluctuations.
  • this safety distance between the equilibrium temperature and the switch-off temperature is now used in order to briefly increase the pressure and thus increase the performance of the pump. If the outlet cross-section of the nozzle is briefly reduced, the emerging liquid jet will reach a higher pressure and have a better cleaning effect.
  • the motor is overloaded, the temperature of the motor rises above the equilibrium temperature until it finally reaches the switch-off temperature. This increase does not happen suddenly, but gradually.
  • a high-pressure cleaning device of the type described at the outset which is characterized by a device for reducing the outlet cross section of the nozzle, which has the outlet cross section reduced to the extent that the motor is overloaded and heats up, and by an actuating element for the reducing device, which reduces the outlet cross section when actuated and automatically eliminates the reduction of the outlet cross section when not actuated.
  • the device for reducing the outlet cross section comprises an exchangeable nozzle which has at least two different nozzle openings which can optionally be pushed into the beam path of the jet pipe.
  • the exchangeable nozzle has a nozzle body with outlet openings of different sizes, which is rotatably mounted on the jet pipe and is immersed in the jet of the jet pipe at different angular positions with different outlet openings.
  • the interchangeable nozzle comprises a plurality of sleeves which are mounted concentrically to one another and in which outlet openings with a decreasing cross-section are arranged on the end face from the outer to the innermost sleeve, the sleeves being axially displaceable and sealingly attachable to the respectively adjacent sleeve .
  • the sleeves can be displaced from the handle side of the jet pipe via actuating rods in the interior of the jet pipe. As a result, it is not necessary to manipulate on the outlet side of the jet pipe in order to reduce the outlet cross section, but this reduction can be carried out from the pistol-like handle of the jet pipe.
  • the cross-sectional area the sleeve or a part connected to the sleeve is smaller on the inflow side than on the outflow side, so that the sleeve is acted upon by the fluid pressure acting on all sides with a resulting force which displaces the sleeve into a position in which the outlet cross section is not reduced .
  • the action of the spring is thus replaced by the action of the liquid pressure which, owing to the unequal cross-sections of the sleeve or of a part connected to the sleeve, exerts a resulting displacement force on the sleeve or this part, which acts in the same way as a spring in other embodiments.
  • the actual high-pressure cleaning device is not shown in the drawing.
  • This comprises a high-pressure pump driven by an electric motor, which supplies a suctioned-in cleaning liquid under high pressure to a high-pressure line, for example a high-pressure hose 1.
  • a temperature sensor is assigned to the electric motor, which measures its temperature and, when a maximum value is exceeded, generates a signal which switches the electric motor off. This prevents the motor from overheating.
  • a cleaning device is part of the prior art and is therefore not explained in detail.
  • the high-pressure hose 1 leads to a hand-held spray gun 2 (FIG. 1) in which a manually operated closing valve is arranged.
  • a jet pipe 3 leads from the hand spray gun 2 to an exchangeable nozzle 4, which is arranged at the outlet of the jet pipe 3.
  • this interchangeable nozzle 4 comprises a housing 5, in which the jet pipe 3 opens.
  • a disk-shaped nozzle body 6 is rotatably mounted about an axis which is parallel to the longitudinal axis of the jet pipe 3 and with respect to the latter is staggered.
  • In the nozzle body 6 there are outlet openings 7, 8 and 9 with different cross sections, which can be pushed one after the other in front of the outlet of the jet pipe 3 by appropriate rotation of the nozzle body.
  • the housing 5 is open on the side opposite the mouth of the jet pipe 3, so that, with a corresponding alignment of one of the outlet openings of the nozzle body with the jet pipe 3, the liquid emerging from the jet pipe is discharged to the outside through the corresponding outlet opening 7.
  • the nozzle body 6 is fixed in the position in which the jet pipe 3 is aligned with the outlet openings by a latch, which in the exemplary embodiment shown is formed by a spring-loaded ball 10 in the housing 5, which engages in corresponding recesses 11 in the nozzle body 6.
  • a latch which in the exemplary embodiment shown is formed by a spring-loaded ball 10 in the housing 5, which engages in corresponding recesses 11 in the nozzle body 6.
  • Such recesses are provided in all outlet openings except the outlet opening 9 with the smallest outlet cross section.
  • an actuating lever 12 on the outer circumference of the housing 5 protrudes therefrom. It is a schematic arrangement, in practice it is cheaper to move this actuating lever 12 away from the end of the jet pipe onto the hand-held spray gun 2, this can be done by means of a corresponding actuating linkage, a Bowden cable, etc., so that the operator does not have to switch over in the area of the jet pipe end, but in the area of the hand spray gun.
  • a spring 13 is arranged, which is fixed on the one hand on the housing 5 and on the other hand on the nozzle body 6. It is arranged in such a way that it counteracts a pivoting of the nozzle body 6 into the position in which the smallest outlet opening 9 is arranged in front of the jet pipe outlet.
  • the pivoting of the nozzle body into this position is therefore only possible against the force of the spring, as soon as the operator releases the actuating lever after such pivoting, the nozzle body 6 immediately comes back under the action of the spring 13 into a position in which a larger outlet opening 7 or 8 is aligned with the nozzle outlet. In other words, the operator needs a constant effort to align the smallest outlet opening 9 with the nozzle outlet.
  • the operator normally selects the outlet opening that is favorable for the specific cleaning process, for example the middle outlet opening 8. This is permanently adjusted by rotating the nozzle body 6, the position of the nozzle body 6 being determined by the detent ball 10.
  • the operator can briefly use the actuating lever 12 to open the outlet opening 9 with a smaller cross section in front of it Swivel in the spray lance 3. This is only possible by overcoming the force of the spring 13; the nozzle body 6 is not fixed in this position. If the operator releases the actuating lever 12 again, the nozzle body 6 immediately swivels into the position in which the next outlet opening 8 is aligned with the jet pipe outlet.
  • an interchangeable nozzle is placed on the jet pipe end 23, which also enables the selection of different outlet cross sections.
  • the jet pipe end 23 is closed on the end face and has an outlet opening 29 with a small cross section in the end face.
  • radial openings 25 and 26 are arranged in the jacket of the jet pipe end 23 at different axial distances from the end face 24. Between these openings 25 and 26, the jet pipe end 23 forms an outwardly projecting flange 30, the circumference of which is sealingly applied by means of an annular seal 31 to the inner wall of a sleeve-shaped nozzle body 32 which concentrically surrounds the jet pipe end 23 and which is axially opposite the jet pipe end 23 is movable.
  • This nozzle body 32 is guided by a further radially outwardly projecting flange 33 on the jet pipe end 23, which at the same time forms a stop against which an inwardly projecting ring 34 connected to the nozzle body 32 strikes and thereby the displacement movement of the nozzle body 32 in the direction of flow escaping liquid limited.
  • the nozzle body 32 is displaced by a compression spring 35, which is supported on the one hand on the end face 24 of the jet pipe end 23 and on the other hand on the end face of the nozzle body 32, so that the ring 34 abuts the flange 33 (FIG. 3).
  • a compression spring 35 which is supported on the one hand on the end face 24 of the jet pipe end 23 and on the other hand on the end face of the nozzle body 32, so that the ring 34 abuts the flange 33 (FIG. 3).
  • the end face 36 of the nozzle body 32 there is a further outlet opening 28, the cross section of which is larger than that of the outlet opening 29.
  • the nozzle body 32 has openings 37 in its jacket which are aligned with the openings 26 in the jet pipe end 23.
  • annular seal 38 surrounding the outlet opening 29 is arranged on the outside, which seals against the inside of the end face 36 of the nozzle body 32 when it is displaced against the action of the compression spring 35.
  • the jet pipe end 23 and the nozzle body 32 are concentrically surrounded by a further hood-shaped nozzle body 39, which rests on an annular flange 40 of the jet pipe end 23 and on an annular flange 41 of the nozzle body 32 and is guided thereby.
  • a seal is achieved between the annular flange 40 and the inside of the nozzle body 39 by means of an annular seal 42 inserted into the annular flange 40, and a spring-loaded ball 43 is mounted in the annular flange 41 and is pressed radially outwards by the spring against the inner wall of the nozzle body 39.
  • locking recesses 44 are provided, into which the ball 43 can snap, so that the nozzle body 39 can be fixed in different axial positions.
  • the nozzle body 39 can be moved into the retracted position, in which its end face 45 bears against the end face 36 of the nozzle body 32, a seal taking place between the two end faces through an annular seal 46 surrounding the outlet opening 28.
  • both the nozzle body 32 and the nozzle body 39 are displaced in the outflow direction.
  • the cleaning liquid is conveyed by the pump into the jet pipe end 23 and reaches the outlet opening 27 in several parallel paths, namely a first central flow path through the outlet opening 29 and then the outlet opening 28, further through the openings 26 and 37 outside the nozzle body 32 and finally between these two flow paths through the openings 25 and the outlet opening 28.
  • the nozzle body 39 is pushed back relative to the nozzle body 32 until the end face 45 lies sealingly against the end face 36 of the nozzle body 32. In this position, the flow path is closed via the openings 26 and 37, so that the liquid only exits through the outlet opening 29 and the openings 25 and the outlet opening 28.
  • the outlet cross section is determined by the outlet opening 28, the liquid has a higher pressure.
  • both nozzle bodies 32 and 39 are pushed back against the outflow direction, the displacement taking place counter to the action of the compression spring 35.
  • the flow path via the opening 25 is also closed, and the liquid can now flow exclusively through the outlet openings 29, 28 and 27 emerge, the outlet cross-section being determined by the outlet opening 29, which is substantially smaller than that of the outlet openings 27 and 28. This results in a further pressure increase which is so great that the pump is overloaded.
  • the latching ball 43 and the latching recesses 44 determine the positions at which liquid can be dispensed with low pressure, but no such determination is made when the two nozzle bodies are completely withdrawn and when the pressure is briefly increased above the equilibrium value. This construction also ensures that the operator is informed by the application of the force and the lack of definition in this pressure-increasing position that this operating state should only last for a short time; when released, this interchangeable nozzle automatically returns to a position in which the electric motor can work in equilibrium.
  • FIG. 4 works similarly to that of FIG. 3, but only two different outlet cross sections can be set in this interchangeable nozzle.
  • the jet pipe 53 which widens at its front end into a sleeve-shaped housing 52 and which has an axial outlet opening 55, surrounds at a distance a sleeve 54 which on the upstream side has a closed bottom 56, on the downstream side one with the Outlet opening 5 has aligned opening 57 and radial inlet openings 58.
  • This sleeve 54 is held at the end of an actuating rod 59, which is located concentrically in the jet pipe 53 and merges into a pipe section 60, which is closed at the end and communicates with the interior of the jet pipe 53 via lateral openings 61.
  • the pipe section 60 is sealed with respect to the inner wall of the jet pipe 53 by seals 62 and 63 which are arranged at a distance from one another. Between these seals 62 and 63 there is a lateral opening 64 in the jet pipe 53, through which an actuating handle 65 connected to the pipe section 60 projects outwards.
  • an actuating handle 65 By moving the actuating handle 65 parallel to the jet pipe 53, the pipe section 60, the actuating rod 59 and thus the sleeve 54 can be displaced in the axial direction relative to the jet pipe 53, namely from a first, retracted position shown in FIG.
  • the liquid flowing through the jet pipe 53 passes through the interior of the pipe section 60 via the radial openings 61 and through the annular space between the housing 52 and the sleeve 54 unhindered to the outlet opening 55.
  • the liquid In the second, advanced position of the sleeve 54, however, the liquid must flow through this flow path through the inlet openings 58 in the sleeve, which have a much smaller flow cross-section, so that a reduction of the outlet cross section occurs.
  • the sleeve 54 can be moved into the pushed-back position by means of a spring, which could be supported, for example, on the one hand on the sleeve 54 and on the other hand on the housing 52 in the region of the outlet opening 55, in the embodiment shown in FIG
  • a forced return of the sleeve to the retracted position is not achieved by means of a spring, but rather by the special cross-sectional configuration of the pipe section 60. This is namely on its upstream side in a part of the jet pipe 53 which has a smaller cross section than the downstream section Part of the jet pipe 53, and the pipe section 60 also has a smaller cross section at the inflow end than at the outflow end.
  • the actuating handle 65 is preferably arranged in the region of the handle on the jet pipe, so that the operator can switch over the outlet cross section in this area without being forced to carry out manipulations at the outflow end of the jet pipe.

Landscapes

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

Abstract

Afin d'obtenir un meilleur effet nettoyant avec un procédé pour l'utilisation d'un appareil de nettoyage à haute pression, muni d'une pompe à haute pression entraînée par un moteur électrique, lequel est coupé en cas de surchauffe, il est proposé, pour augmenter la pression du jet de liquide produit, de réduire brièvement la section de sortie d'une buse de sortie et d'annuler la réduction de la section de sortie avant que le moteur ne soit coupé suite à la hausse de la température. Un dispositif pour la réalisation de ce procédé est également proposé.

Claims (8)

  1. Procédé de fonctionnement d'un appareil de nettoyage à haute pression équipé d'une pompe à haute pression entraînée par un moteur électrique, appareil dont le moteur est mis hors circuit en cas de surchauffe, caractérisé en ce que pour augmenter la pression du jet de liquide fourni, on réduit pour une courte période la section de sortie d'une buse de sortie et on annule la réduction de la section de sortie avant que le moteur soit mis hors circuit à la suite d'une augmentation de la température.
  2. Appareil de nettoyage à haute pression comportant une pompe à haute pression entraînée par un moteur électrique, une tuyère d'échappement reliée à la conduite de pression de la pompe à haute pression, ladite tuyère étant pourvue d'une buse du côté de sa sortie, et comportant une mise hors circuit thermique du moteur qui met le moteur hors circuit lorsque la température maximale de celui-ci est dépassée, caractérisé par un dispositif (4) destiné à réduire la section de sortie de la buse, qui réduit la section de sortie dans une mesure telle que le moteur est surchargé et se réchauffe, et par un élément d'actionnement (12, 39, 54) qui réduit la section de sortie en cas d'actionnement et annule automatiquement la réduction de la section de sortie en cas de non actionnement.
  3. Appareil de nettoyage à haute pression selon la revendication 2, caractérisé en ce que le dispositif de réduction de la section de sortie contient une buse commutable (4) qui présente au moins deux ouvertures de buse différentes (9, 8; 29, 28) qui peuvent être mises en place au choix dans le jet de la tuyère d'échappement.
  4. Appareil de nettoyage à haute pression selon la revendication 3, caractérisé en ce que la buse commutable (4) peut être déplacée contre l'effet d'un ressort (13; 35) dans la position dans laquelle la section de sortie est réduite.
  5. Appareil de nettoyage à haute pression selon l'une ou l'autre des revendications 3 et 4, caractérisé en ce que la buse comutable (4) présente un corps de buse (6) comportant des ouvertures de sortie (7, 8, 9) de différentes tailles, ledit corps de buse étant monté en rotation sur la tuyère d'échappement (3) et plongeant dans différentes positions angulaires avec différentes ouvertures de sortie (7, 8, 9) dans le jet de la tuyère d'échappement (3).
  6. Appareil de nettoyage à haute pression selon l'une ou l'autre des revendications 3 et 4, caractérisé en ce que la buse commutable (4) comprend plusieurs douilles (extrémité de tuyère d'échappement 23, corps de buse 32, corps de buse 39; douille 54) montées concentriquement les unes par rapport aux autres, dans lesquelles des ouvertures de sortie (29, 28, 27; 55, 58) sont agencées sur la face frontale, de section décroissante depuis la douille située la plus à l'extérieur jusqu'à la douille située la plus à l'intérieur, les douilles pouvant en partie être déplacées axialement et appliquées de manière étanche contre la douille voisine respective.
  7. Appareil de nettoyage à haute pression selon la revendication 6, caractérisé en ce que les douilles (54) peuvent être déplacées par l'intermédiaire de tiges d'actionnement (59) à l'intérieur de la tuyère d'échappement (53) depuis le côté de la poignée de la tuyère d'échappement (53).
  8. Appareil de nettoyage à haute pression selon l'une ou l'autre des revendications 6 et 7, caractérisé en ce que la surface de section de la douille (23, 32, 39; 54), ou d'une partie (60) reliée à la douille, est plus petite sur le côté d'admission que sur le côté d'échappement, de sorte que la douille est sollicitée par la pression de liquide attaquant de tous côtés avec une force résultante qui déplace la douille dans une position dans laquelle la section de sortie n'est pas réduite.
EP91908164A 1990-06-29 1991-04-26 Appareil de nettoyage a haute pression Expired - Lifetime EP0534983B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4020737 1990-06-29
DE4020737A DE4020737C1 (fr) 1990-06-29 1990-06-29
PCT/EP1991/000812 WO1992000150A1 (fr) 1990-06-29 1991-04-26 Appareil de nettoyage a haute pression

Publications (2)

Publication Number Publication Date
EP0534983A1 EP0534983A1 (fr) 1993-04-07
EP0534983B1 true EP0534983B1 (fr) 1994-08-31

Family

ID=6409338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91908164A Expired - Lifetime EP0534983B1 (fr) 1990-06-29 1991-04-26 Appareil de nettoyage a haute pression

Country Status (4)

Country Link
EP (1) EP0534983B1 (fr)
DE (1) DE4020737C1 (fr)
DK (1) DK0534983T3 (fr)
WO (1) WO1992000150A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411567C2 (de) * 1994-04-02 1996-10-31 Kaercher Gmbh & Co Alfred Hochdruckreinigungsgerät
DE19624333A1 (de) * 1996-06-19 1998-01-08 Wap Reinigungssysteme Hochdruckdüse für ein Hochdruckreinigungsgerät

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB540674A (en) * 1941-03-03 1941-10-24 Edwin Charles Sharp Improvements in hose nozzles for stirrup pumps and like fire extinguishing appliances
US2336453A (en) * 1942-05-26 1943-12-14 American Molded Products Co Nozzle
DE1005783B (de) * 1954-09-16 1957-04-04 Hugo Tafelmaier Strahlrohr fuer Spritzen zum Bespritzen von Baeumen, Straeuchern od. dgl. sowie fuer industrielle Zwecke
AU415480B2 (en) * 1967-04-27 1971-07-23 Improved adjustable nozzle for hoses
DE2362139A1 (de) * 1973-12-14 1975-06-19 Klaus E Kollmai Reinigungsstab fuer fluide medien
DE3007290A1 (de) * 1980-02-27 1981-09-03 Wolfgang 4800 Bielefeld Suttner Duesenkopf
DE3024114C2 (de) * 1980-06-27 1983-04-28 Alfred Kärcher GmbH & Co, 7057 Winnenden Umschaltvorrichtung für ein Hochdruckreinigungsgerät
DE3148898A1 (de) * 1981-12-10 1983-06-23 Wolfgang 4800 Bielefeld Suttner "spritzpistole"
DK149503C (da) * 1983-11-25 1986-12-29 Westergaard Knud Erik Udsproejtningsdyse til hoejtryksrensere
US4785998A (en) * 1986-06-09 1988-11-22 Toshio Takagi Water spraying nozzle
DE8914112U1 (de) * 1989-11-30 1990-01-18 Alfred Kärcher GmbH & Co, 7057 Winnenden Wechseldüse für ein Hochdruckreinigungsgerät

Also Published As

Publication number Publication date
DK0534983T3 (da) 1994-10-03
WO1992000150A1 (fr) 1992-01-09
DE4020737C1 (fr) 1991-08-29
EP0534983A1 (fr) 1993-04-07

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