DK1218640T3 - Pressure Washer - Google Patents

Pressure Washer

Info

Publication number
DK1218640T3
DK1218640T3 DK00967843T DK00967843T DK1218640T3 DK 1218640 T3 DK1218640 T3 DK 1218640T3 DK 00967843 T DK00967843 T DK 00967843T DK 00967843 T DK00967843 T DK 00967843T DK 1218640 T3 DK1218640 T3 DK 1218640T3
Authority
DK
Denmark
Prior art keywords
high pressure
tooth gear
pressure washer
hardness
corrosion resistance
Prior art date
Application number
DK00967843T
Other languages
Danish (da)
Inventor
Peter Scharwaechter
Original Assignee
Kaercher Gmbh & Co Alfred
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 Kaercher Gmbh & Co Alfred filed Critical Kaercher Gmbh & Co Alfred
Application granted granted Critical
Publication of DK1218640T3 publication Critical patent/DK1218640T3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • 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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Centrifugal Separators (AREA)
  • Mechanical Sealing (AREA)

Abstract

The invention relates to a high pressure cleaning device comprising a motor driving an internally toothed gearwheel pump for supply of a cleaning fluid, under high pressure, to an outlet device. Said internal tooth gear and/or an external tooth gear comprise a molybdenum containing chrome steel alloy which also contains a nitrogen component of 0.1 - 1 % and which increases the corrosion resistance and hardness of the toothed gearwheels.
DK00967843T 1999-10-08 2000-10-06 Pressure Washer DK1218640T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19948860A DE19948860A1 (en) 1999-10-08 1999-10-08 High pressure cleaning device
PCT/EP2000/009819 WO2001027476A1 (en) 1999-10-08 2000-10-06 High pressure cleaning device

Publications (1)

Publication Number Publication Date
DK1218640T3 true DK1218640T3 (en) 2003-02-24

Family

ID=7925185

Family Applications (1)

Application Number Title Priority Date Filing Date
DK00967843T DK1218640T3 (en) 1999-10-08 2000-10-06 Pressure Washer

Country Status (8)

Country Link
EP (1) EP1218640B1 (en)
CN (1) CN1215259C (en)
AT (1) ATE231219T1 (en)
AU (1) AU7786200A (en)
DE (2) DE19948860A1 (en)
DK (1) DK1218640T3 (en)
ES (1) ES2189769T3 (en)
WO (1) WO2001027476A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7556210B2 (en) * 2006-05-11 2009-07-07 S. C. Johnson & Son, Inc. Self-contained multi-sprayer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1270122A (en) * 1969-03-06 1972-04-12 Plessey Co Ltd Improvements in or relating to gear pumps
JPS5837162A (en) * 1981-08-31 1983-03-04 Toshiba Corp Pump and its manufacture
JPH01246343A (en) * 1988-03-25 1989-10-02 Daido Steel Co Ltd Stainless steel
JPH06336652A (en) * 1993-05-27 1994-12-06 Agency Of Ind Science & Technol Stainless forged steel for seawater pump of atomic power plant
JPH09195004A (en) * 1995-11-10 1997-07-29 Mitsubishi Heavy Ind Ltd Stainless steel
DE19726794A1 (en) 1997-06-24 1999-01-07 Elektra Beckum Ag Water high pressure cleaning device
JPH1180911A (en) * 1997-09-11 1999-03-26 Nippon Steel Corp High purity chromium steel sheet for pump impeller

Also Published As

Publication number Publication date
EP1218640A1 (en) 2002-07-03
AU7786200A (en) 2001-04-23
DE19948860A1 (en) 2001-04-12
ATE231219T1 (en) 2003-02-15
CN1378621A (en) 2002-11-06
ES2189769T3 (en) 2003-07-16
DE50001121D1 (en) 2003-02-20
EP1218640B1 (en) 2003-01-15
CN1215259C (en) 2005-08-17
WO2001027476A1 (en) 2001-04-19

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