EP0620766B1 - Appareil de nettoyage a haute pression - Google Patents

Appareil de nettoyage a haute pression Download PDF

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Publication number
EP0620766B1
EP0620766B1 EP92917910A EP92917910A EP0620766B1 EP 0620766 B1 EP0620766 B1 EP 0620766B1 EP 92917910 A EP92917910 A EP 92917910A EP 92917910 A EP92917910 A EP 92917910A EP 0620766 B1 EP0620766 B1 EP 0620766B1
Authority
EP
European Patent Office
Prior art keywords
housing
pump
electric motor
cleaning device
pressure cleaning
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
EP92917910A
Other languages
German (de)
English (en)
Other versions
EP0620766A1 (fr
Inventor
Robert Nathan
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 EP0620766A1 publication Critical patent/EP0620766A1/fr
Application granted granted Critical
Publication of EP0620766B1 publication Critical patent/EP0620766B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/002—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour incorporating means for heating or cooling, e.g. the material to be sprayed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices
    • 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
    • B08B2203/0235—Cooling the motor pump

Definitions

  • Such cooling is very effective, but it is not suitable for cleaning devices in which the motor has to be completely encapsulated against environmental influences. This is necessary, for example, if the electric motor and the pump are to be accommodated in a hand-held device which, for safety reasons, still has to work safely even when completely immersed in a liquid and which nevertheless must not endanger the user.
  • the invention is discussed using the example of a portable high-pressure cleaning device, but it can in principle also be used in other high-pressure cleaning devices in which an encapsulation of the electric motor is desired.
  • the housing 1 arranged between the spray lance 5 on the one hand and the handle part 4 on the other hand is designed as a completely closed housing, which has a sealed bushing 8 for a suction line 9 connected to the supply line 6 on its upper side and a likewise sealed bushing 10 for a to the spray lance on the opposite side 5 and leading to an outlet of the high-pressure cleaning device pressure line 11.
  • the pump 3 is inserted, which can be designed, for example, as a two-piston pump.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Il est proposé, pour simplifier la construction d'un appareil de nettoyage à haute pression comportant un moteur électrique (2), une pompe (3) entraînée par ce dernier pour un liquide de nettoyage, un carter (1) fermé entourant le moteur électrique (2), une soufflante (23) entraînée par le moteur électrique (2), produisant un flux de gaz circulant dans le carter (1) et refroidissant le moteur électrique, et pourvu d'un refroidisseur disposé dans le carter (1) pour le flux de gaz et traversé par le liquide de nettoyage, que la pompe (3) soit au moins partiellement disposée dans le carter (1) et en contact de transmission thermique avec le flux de gaz du carter (1)

Claims (9)

  1. Appareil de nettoyage à haute pression comprenant un moteur électrique (2), une pompe (3) entraînée par ce moteur, pour pomper un agent de nettoyage liquide, un boîtier fermé (1) qui entoure le moteur électrique (2), un ventilateur (23) entraîné par le moteur électrique (2), qui engendre un courant gazeux qui circule dans le boîtier (1) et refroidit le moteur électrique (2) et un refroidisseur pour le courant gazeux, disposé dans le boîtier (1) parcouru par l'agent de nettoyage, caractérisé en ce que la pompe (3) est disposée au moins partiellement dans le boîtier (1), est en contact de transmission de chaleur avec le courant gazeux circulant dans le boîtier (1) et forme ainsi le refroidisseur.
  2. Appareil de nettoyage à haute pression selon la revendication 1, caractérisé en ce que la pompe (3) est logée entièrement dans le volume intérieur du boîtier (1) et est léchée par le courant gazeux.
  3. Appareil de nettoyage à haute pression selon la revendication 1 ou 2, caractérisé en ce que les conduites d'amenée (9) et/ou de sortie (11) de la pompe (3) sont léchées par le courant gazeux à l'intérieur du boîtier (1).
  4. Appareil de nettoyage à haute pression selon une des revendications précédentes, caractérisé en ce que le moteur électrique (3) et la pompe (3) forment un sous-ensemble.
  5. Appareil de nettoyage à haute pression selon une des revendications précédentes, caractérisé en ce qu'un mécanisme à engrenages (21) est interposé entre le moteur électrique (2) et la pompe (1).
  6. Appareil de nettoyage à haute pression selon une des revendications précédentes, caractérisé en ce que les conduites d'arrivée (9) et les conduites de sortie (11) de la pompe (3) sont passées à travers la paroi du boîtier en formant des joints étanches.
  7. Appareil de nettoyage à haute pression selon une des revendications précédentes, caractérisé en ce que le boîtier (1) porte des ailettes de refroidissement (24) sur sa face extérieure.
  8. Appareil de nettoyage à haute pression selon une des revendications précédentes, caractérisé en ce que le boîtier (1) porte des ailettes de refroidissement (25) sur sa face intérieure.
  9. Appareil de nettoyage à haute pression selon une des revendications précédentes, caractérisé en ce que la pompe (3) porte des ailettes de refroidissement sur sa face extérieure.
EP92917910A 1991-08-14 1992-08-13 Appareil de nettoyage a haute pression Expired - Lifetime EP0620766B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4126798 1991-08-14
DE4126798 1991-08-14
PCT/EP1992/001849 WO1993003865A1 (fr) 1991-08-14 1992-08-13 Appareil de nettoyage a haute pression

Publications (2)

Publication Number Publication Date
EP0620766A1 EP0620766A1 (fr) 1994-10-26
EP0620766B1 true EP0620766B1 (fr) 1995-11-15

Family

ID=6438234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92917910A Expired - Lifetime EP0620766B1 (fr) 1991-08-14 1992-08-13 Appareil de nettoyage a haute pression

Country Status (4)

Country Link
EP (1) EP0620766B1 (fr)
DE (2) DE9215217U1 (fr)
DK (1) DK0620766T3 (fr)
WO (1) WO1993003865A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7854398B2 (en) 2005-10-26 2010-12-21 Techtronic Outdoor Products Technology Limited Hand held pressure washer
US8444068B2 (en) 2005-10-26 2013-05-21 Techtronic Outdoor Products Technology Limited Dual flow pressure washer
US10968899B2 (en) 2015-11-20 2021-04-06 Positec Power Tools (Suzhou) Co., Ltd. Pump unit and handheld high pressure washer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10101277B4 (de) * 2001-01-12 2006-11-02 Wacker Construction Equipment Ag Hochfrequenz-Innenrüttler mit gekühltem elektronischen Frequenzumformer
WO2007059305A2 (fr) * 2005-11-16 2007-05-24 Faip North America, Inc. Nettoyeur haute pression portatif electrique
US8425203B2 (en) 2008-04-25 2013-04-23 Techtronic Outdoor Products Technology Limited Portable pressure washer system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4597720A (en) * 1979-07-26 1986-07-01 Friedrichs Ingo H Cleaning apparatus for the wet cleaning of building walls and floors, swimming pools, automobiles and the like
DE3115698C1 (de) * 1981-04-18 1982-12-16 Alfred Kärcher GmbH & Co, 7057 Winnenden Motorpumpeneinheit fuer ein Hochdruckreinigungsgeraet
DK481284A (da) * 1984-10-08 1986-04-09 Knud Erik Westergaard Motorpumpeenhed til et hoejtryksrenseapparat
DK595787D0 (da) * 1987-11-13 1987-11-13 Westergaard Knud Erik Hoejtryksrenser
DE3931814A1 (de) * 1989-09-23 1991-04-04 Black & Decker Inc Handgefuehrter hochdruckreiniger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7854398B2 (en) 2005-10-26 2010-12-21 Techtronic Outdoor Products Technology Limited Hand held pressure washer
US8444068B2 (en) 2005-10-26 2013-05-21 Techtronic Outdoor Products Technology Limited Dual flow pressure washer
US10968899B2 (en) 2015-11-20 2021-04-06 Positec Power Tools (Suzhou) Co., Ltd. Pump unit and handheld high pressure washer
USRE49589E1 (en) 2015-11-20 2023-07-25 Positec Power Tools (Suzhou) Co., Ltd Pump unit and handheld high pressure washer

Also Published As

Publication number Publication date
EP0620766A1 (fr) 1994-10-26
DK0620766T3 (da) 1995-12-18
DE9215217U1 (fr) 1993-01-14
DE59204379D1 (de) 1995-12-21
WO1993003865A1 (fr) 1993-03-04

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