EP0793017A3 - Pump for a high pressure cleaning apparatus - Google Patents

Pump for a high pressure cleaning apparatus Download PDF

Info

Publication number
EP0793017A3
EP0793017A3 EP97101289A EP97101289A EP0793017A3 EP 0793017 A3 EP0793017 A3 EP 0793017A3 EP 97101289 A EP97101289 A EP 97101289A EP 97101289 A EP97101289 A EP 97101289A EP 0793017 A3 EP0793017 A3 EP 0793017A3
Authority
EP
European Patent Office
Prior art keywords
chamber
block
bores
longitudinal axis
pump
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.)
Granted
Application number
EP97101289A
Other languages
German (de)
French (fr)
Other versions
EP0793017A2 (en
EP0793017B1 (en
Inventor
Roger Skoumal
Jürgen KLÖPFER
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 EP0793017A2 publication Critical patent/EP0793017A2/en
Publication of EP0793017A3 publication Critical patent/EP0793017A3/en
Application granted granted Critical
Publication of EP0793017B1 publication Critical patent/EP0793017B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • F04B1/143—Cylinders
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing

Abstract

The pump includes a by-pass pipe closable by a valve (30) mounted in the cylinder block (7) in a chamber (29) which extends from the outer edge of the block at right angles to the longitudinal axis of the bores (9) into the space between the bores in the block. The chamber can be formed by a bore narrowing by steps towards its inner end. At its inner end the chamber can enter the suction pipe (23) which runs at right angles to the longitudinal axis of the cylinder bores (9) and across the longitudinal axis of the chamber (29) from the outer edge of the block between the cylinder bores in the block. A control piston is axially displaceable in the chamber to divide it into a top and bottom area.
EP97101289A 1996-03-01 1997-01-28 Pump for a high pressure cleaning apparatus Expired - Lifetime EP0793017B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19607881 1996-03-01
DE19607881A DE19607881C2 (en) 1996-03-01 1996-03-01 Pump for a high pressure cleaning device

Publications (3)

Publication Number Publication Date
EP0793017A2 EP0793017A2 (en) 1997-09-03
EP0793017A3 true EP0793017A3 (en) 1998-11-18
EP0793017B1 EP0793017B1 (en) 2001-06-20

Family

ID=7786914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101289A Expired - Lifetime EP0793017B1 (en) 1996-03-01 1997-01-28 Pump for a high pressure cleaning apparatus

Country Status (4)

Country Link
EP (1) EP0793017B1 (en)
AT (1) ATE202406T1 (en)
DE (1) DE19607881C2 (en)
DK (1) DK0793017T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20030053U1 (en) * 2003-07-10 2005-01-11 Lavorwash Spa HYDRAULIC PISTON AXIAL STRUCTURE
DE102007017970A1 (en) 2007-04-11 2008-10-16 Alfred Kärcher Gmbh & Co. Kg High-pressure cleaner
DE102009049094A1 (en) * 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pump for a high-pressure cleaning device
DE102009049096A1 (en) * 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pump for a high-pressure cleaning device
DE102009049095A1 (en) 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pump for a high-pressure cleaning device
AU2011379616B2 (en) * 2011-10-28 2015-12-03 Alfred Karcher Gmbh & Co. Kg High pressure cleaning apparatus
WO2020126014A1 (en) * 2018-12-20 2020-06-25 Alfred Kärcher SE & Co. KG High pressure cleaning device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1136634A (en) * 1965-03-29 1968-12-11 Bennes Marrel Hydraulic swash-plate type
US3679328A (en) * 1970-03-27 1972-07-25 Applied Power Ind Inc Variable pressure sensitive pump
DE8514497U1 (en) * 1985-05-15 1985-07-18 Kränzle, Josef, 7918 Illertissen High pressure piston pump
DE4338896A1 (en) * 1993-11-15 1994-06-30 Suttner Gmbh & Co Kg Axial piston pump for high pressure water cleaner - has integral metal or fibre reinforced swashplate with peripheral toothing for drive pinion
DE4445519C1 (en) * 1994-12-20 1996-06-05 Kaercher Gmbh & Co Alfred Piston pump for high pressure cleaning appliances
DE29611935U1 (en) * 1995-07-14 1996-09-05 Lavorwash S R L Swashplate pump construction, especially for water jet cleaning devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3248622C2 (en) * 1982-12-30 1985-10-17 Alfred Kärcher GmbH & Co, 7057 Winnenden High pressure cleaning device
DK165129C (en) * 1988-09-02 1993-02-22 Westergaard Knud E Ind As SHIELD PUMP PUMP PUMP, SPECIAL FOR USE IN HIGH PRESSURE CLEANING APPLIANCES
DE9013630U1 (en) * 1990-09-28 1991-01-31 Speck-Kolbenpumpenfabrik Otto Speck Gmbh & Co. Kg, 8192 Geretsried, De

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1136634A (en) * 1965-03-29 1968-12-11 Bennes Marrel Hydraulic swash-plate type
US3679328A (en) * 1970-03-27 1972-07-25 Applied Power Ind Inc Variable pressure sensitive pump
DE8514497U1 (en) * 1985-05-15 1985-07-18 Kränzle, Josef, 7918 Illertissen High pressure piston pump
DE4338896A1 (en) * 1993-11-15 1994-06-30 Suttner Gmbh & Co Kg Axial piston pump for high pressure water cleaner - has integral metal or fibre reinforced swashplate with peripheral toothing for drive pinion
DE4445519C1 (en) * 1994-12-20 1996-06-05 Kaercher Gmbh & Co Alfred Piston pump for high pressure cleaning appliances
DE29611935U1 (en) * 1995-07-14 1996-09-05 Lavorwash S R L Swashplate pump construction, especially for water jet cleaning devices

Also Published As

Publication number Publication date
DK0793017T3 (en) 2001-09-03
ATE202406T1 (en) 2001-07-15
EP0793017A2 (en) 1997-09-03
EP0793017B1 (en) 2001-06-20
DE19607881A1 (en) 1997-09-04
DE19607881C2 (en) 2003-07-17

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