EP0242550B1 - Groupe moto-pompe pour appareil de nettoyage à haute pression - Google Patents

Groupe moto-pompe pour appareil de nettoyage à haute pression Download PDF

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Publication number
EP0242550B1
EP0242550B1 EP87103279A EP87103279A EP0242550B1 EP 0242550 B1 EP0242550 B1 EP 0242550B1 EP 87103279 A EP87103279 A EP 87103279A EP 87103279 A EP87103279 A EP 87103279A EP 0242550 B1 EP0242550 B1 EP 0242550B1
Authority
EP
European Patent Office
Prior art keywords
motor
housing
pump
pump unit
component
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
EP87103279A
Other languages
German (de)
English (en)
Other versions
EP0242550A3 (en
EP0242550A2 (fr
Inventor
Werner Ing.(Grad.) Schulze
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
Priority to AT87103279T priority Critical patent/ATE56505T1/de
Publication of EP0242550A2 publication Critical patent/EP0242550A2/fr
Publication of EP0242550A3 publication Critical patent/EP0242550A3/de
Application granted granted Critical
Publication of EP0242550B1 publication Critical patent/EP0242550B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/145—Housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors

Definitions

  • the invention relates to a motor pump unit of a high-pressure cleaning device with an electric motor arranged in a motor housing, the motor shaft of which projects into a pump housing and drives the piston or pistons of a high-pressure pump there via a gear, the motor housing and the pump housing being designed as a one-piece component.
  • Motor pump units of this type are used in high-pressure cleaning devices in order to supply cleaning liquid, in particular water, to a spraying device under a high pressure, for example in the order of magnitude of 200 bar.
  • a high pressure for example in the order of magnitude of 200 bar.
  • efforts are made to arrange the motor and pump as close as possible to one another.
  • it is known to form the housing of the pump unit directly in one piece with the housing of the motor (DG A 3 404 056).
  • a motor pump unit of the type described in the introduction in that a chamber for receiving the electrical installation of the motor is integrally formed in the area of the pump housing on the one-piece housing component to the outside and to the interior of the motor housing.
  • the common component thus also takes over the recording of the electrical installation, so that a separate component is no longer necessary for this.
  • the one-piece housing component is an aluminum casting.
  • flow paths for a cooling liquid surrounding the interior are embedded in the motor housing, the flow path in particular being able to surround the interior in a helical shape or being designed as an annular chamber surrounding the interior.
  • the one-piece housing component has a transverse wall in the transition of the motor housing into the pump housing, which receives a bearing for the motor shaft.
  • the motor shaft can pass through the transverse wall in a sealed manner.
  • the outside diameter of the pump housing is smaller than the outside diameter of the motor housing.
  • the one-piece housing component is open on the sides facing away from one another. This makes it possible to insert the motor parts from the open side into the motor housing part and the pump parts or the corresponding gear parts into the pump housing part, the open sides then being closed on the motor part by a cover and on the pump part by fitting the cylinder head of the pump can be.
  • the motor pump unit 1 shown in FIG. 1 comprises a cylindrical motor housing 2, on the outside of which radially outwardly projecting cooling fins 3 are arranged.
  • the motor housing 2 is open on one side and closed by a cover 4, which carries a ball bearing 6 in a central opening 5 for the mounting of a motor shaft 7, which is mounted in a second ball bearing 8 in a closing wall 9 of the motor housing 2 a second time .
  • the motor shaft 7 carries a rotor 11 which interacts with a stator winding 10 arranged in the interior of the motor housing 2 in the known manner.
  • the motor shaft 7 protrudes from the housing and carries a fan wheel 12, which in operation allows cooling air to flow over the outer surface of the motor housing 2 and along the cooling fins 3.
  • a pump housing 13 with a smaller outer diameter is molded onto the motor housing 2, so that a one-piece component 14 formed from the pump housing 13 and the motor housing 2 is formed.
  • the pump housing 13 is open on the side opposite the end wall 9, in the region of the end wall 9 it is sealed off from the interior of the motor housing 2 by a seal 15 resting on the motor shaft 7.
  • the end of the motor shaft 7 protruding into the pump housing 13 carries a swash plate 16 which rests in the piston 17 of a high-pressure pump which is only partially shown in the drawing and thereby moves the pistons oscillating parallel to their longitudinal axis when they rotate.
  • the pistons are mounted in a cylinder head 18, only partially shown in the drawing, which is sealed against the open end of the pump housing 13, so that the pistons 17 partially protrude into the pump housing 13.
  • the one-piece component 14 is preferably an aluminum die-cast part. Since this component is open on both sides, the corresponding parts can be used in a simple manner from both sides during assembly, a complex connection of a separate pump housing to a separate motor housing being eliminated due to the one-piece design.
  • This chamber 19 is also formed in one piece with the component 14 results in a particularly compact construction, since separate connecting means can also be omitted in this area.
  • FIG. 1 While the exemplary embodiment in FIG. 1 is provided with cooling fins 3 in the area of the motor housing 2, a helical flow path 20 for a cooling liquid is embedded in the component 14, which comprises the motor housing and the pump housing, in the wall of the motor housing 2, so that a cooling liquid flows around the inner space receiving the electric motor and thereby cools it.
  • the cleaning liquid delivered by the pump is preferably used as the cooling liquid.
  • a flow path 20 is provided in the form of an annular chamber surrounding the interior of the motor housing 2, otherwise the components 14 (FIGS. 2 and 3) are constructed the same as the corresponding one, with the exception of the cooling fins 3 Component 14 in FIG. 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (9)

1. Groupe moto-pompe d'un appareil de nettoyage à haute pression, comprenant un moteur électrique disposé dans un corps de moteur et dont l'arbre fait saillie dans un corps de pompe où il entraîne, par l'intermédiaire d'un engrenage, le piston ou les pistons d'une pompe à haute pression, le corps (2) du moteur et le corps (13) de la pompe étant réalisés comme une pièce (14) d'un seul tenant, caractérisé en ce qu'une chambre (19) destinée à recevoir l'installation électrique du moteur, est formée dans la région formant le corps (13) de la pompe de la pièce (14) d'un seul tenant constituant le corps du groupe, chambre qui est ouverte vers l'extérieur et vers le volume intérieur du corps (2) du moteur.
2. Groupe moto-pompe selon la revendication 1, caractérisé en ce que la pièce (14) d'un seul tenant formant le corps est une pièce en fonte d'aluminium.
3. Groupe moto-pompe selon une des revendications précédentes, caractérisé en ce que des chemins d'écoulement (20) pour un liquide de refroidissement sont ménagés dans le corps (2) du moteur de manière à entourer le volume intérieur.
4. Groupe moto-pompe selon la revendication 3, caractérisé en ce que le chemin d'écoulement (20) entoure le volume intérieur en hélice.
5. Groupe moto-pompe selon la revendication 3, caractérisé en ce que le chemin d'écoulement (20) est réalisé comme une chambre annulaire entoursnt le volume intérieur.
6. Groupe moto-pompe selon une des revendications précédentes, caractérisé en ce que la pièce (14) d'un seul tenant formant le corps, comporte une cloison terminale (9) dans la transition du corps (2) du moteur au corps (13) de la pompe, cloison qui contient un palier (8) pour l'arbre (7) du moteur.
7. Groupe moto-pompe selon la revendication 6, caractérisé en ce que l'arbre (7) du moteur traverse la cloison terminale (9) de façon étanche.
8. Groupe moto-pompe selon une des revendications précédentes, caractérisé en ce que le diamètre extérieur du corps (13) de la pompe est plus petit que le diamètre extérieur du corps (2) du moteur.
9. Groupe moto-pompe selon une des revendications précédentes, caractérisé en ce que la pièce (14) formant le corps d'un seul tenant est ouverte sur les côtés mutuellement éloignés.
EP87103279A 1986-04-17 1987-03-07 Groupe moto-pompe pour appareil de nettoyage à haute pression Expired - Lifetime EP0242550B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87103279T ATE56505T1 (de) 1986-04-17 1987-03-07 Motorpumpeneinheit fuer ein hochdruckreinigungsgeraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863612936 DE3612936A1 (de) 1986-04-17 1986-04-17 Motorpumpeneinheit fuer ein hochdruckreinigungsgeraet
DE3612936 1986-04-17

Publications (3)

Publication Number Publication Date
EP0242550A2 EP0242550A2 (fr) 1987-10-28
EP0242550A3 EP0242550A3 (en) 1988-06-22
EP0242550B1 true EP0242550B1 (fr) 1990-09-12

Family

ID=6298880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103279A Expired - Lifetime EP0242550B1 (fr) 1986-04-17 1987-03-07 Groupe moto-pompe pour appareil de nettoyage à haute pression

Country Status (3)

Country Link
EP (1) EP0242550B1 (fr)
AT (1) ATE56505T1 (fr)
DE (2) DE3612936A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021175334A1 (fr) * 2020-03-03 2021-09-10 上海亿力电器有限公司 Unité de pompe à moteur de machine de nettoyage haute pression appropriée pour une transmission de décélération à engrènement interne

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0324868A1 (fr) * 1988-01-19 1989-07-26 Alfred Kärcher GmbH & Co. Pompe à pistons pour appareil de nettoyage à haute pression
DK715088A (da) * 1988-12-21 1990-06-22 Westergaard Knud E Ind As Motor-pumpe-enhed til en hoejtryksrenser
DE3931814A1 (de) * 1989-09-23 1991-04-04 Black & Decker Inc Handgefuehrter hochdruckreiniger
DE4106955A1 (de) * 1991-03-05 1992-09-10 Kaercher Gmbh & Co Alfred Hochdruckreinigungsgeraet
DE4403139A1 (de) * 1994-02-02 1995-08-03 Sachsenhydraulik Gmbh Unterölpumpenaggregat
DE19522878A1 (de) * 1995-06-23 1997-01-02 Kaercher Gmbh & Co Alfred Motorpumpeneinheit für ein Hochdruckreinigungsgerät
IT1287936B1 (it) * 1996-07-03 1998-08-26 Lavorwash Srl Pompa a pistoni assiali
DE29616143U1 (de) * 1996-09-18 1998-01-22 Suttner Gmbh & Co Kg, 33689 Bielefeld Hochdruckreinigungsgerät mit einem Verbrennungs-Antriebsmotor
DE19737540A1 (de) 1997-08-28 1999-03-04 Schaeffler Waelzlager Ohg Taumelantrieb einer Axialkolbenmaschine
DE19738813B4 (de) * 1997-09-05 2004-05-27 Ina-Schaeffler Kg Axialkolbenmaschine
DE102005023449A1 (de) * 2005-05-20 2006-12-14 Schaeffler Kg Taumelscheibengetriebe
DE102007034013A1 (de) * 2007-07-20 2009-01-29 Wacker Construction Equipment Ag Arbeitsmaschine für einen Innenrüttler
JP5687257B2 (ja) * 2012-09-04 2015-03-18 川崎重工業株式会社 燃料ポンプ
DE102014221778A1 (de) * 2014-10-27 2016-04-28 Robert Bosch Gmbh Übertragungsmodul
DE202015000639U1 (de) 2015-01-29 2016-02-01 Josef Kränzle GmbH & Co. KG Taumelscheibenpumpe
CN106032794B (zh) * 2016-07-29 2018-05-01 浙江大学 一体化高转速斜盘旋转式电机泵
CN107269484A (zh) * 2017-07-18 2017-10-20 中国航空工业集团公司西安飞行自动控制研究所 一种柱塞泵与电机的一体化式结构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB762986A (en) * 1954-02-23 1956-12-05 Sigmund Pumps Ltd Combined pump and driving motor assembly
DE3001571C2 (de) * 1980-01-17 1982-10-28 Alfred Kärcher GmbH & Co, 7057 Winnenden Hochdruckreinigungsgerät
DE3115698C1 (de) * 1981-04-18 1982-12-16 Alfred Kärcher GmbH & Co, 7057 Winnenden Motorpumpeneinheit fuer ein Hochdruckreinigungsgeraet
US4529362A (en) * 1983-02-07 1985-07-16 Hitachi, Ltd. Servo pump for hydraulic systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021175334A1 (fr) * 2020-03-03 2021-09-10 上海亿力电器有限公司 Unité de pompe à moteur de machine de nettoyage haute pression appropriée pour une transmission de décélération à engrènement interne

Also Published As

Publication number Publication date
DE3764848D1 (de) 1990-10-18
EP0242550A3 (en) 1988-06-22
EP0242550A2 (fr) 1987-10-28
ATE56505T1 (de) 1990-09-15
DE3612936A1 (de) 1987-10-22

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