HK1048844A1 - Pump for generating pressure or negative pressure - Google Patents

Pump for generating pressure or negative pressure

Info

Publication number
HK1048844A1
HK1048844A1 HK03100973A HK03100973A HK1048844A1 HK 1048844 A1 HK1048844 A1 HK 1048844A1 HK 03100973 A HK03100973 A HK 03100973A HK 03100973 A HK03100973 A HK 03100973A HK 1048844 A1 HK1048844 A1 HK 1048844A1
Authority
HK
Hong Kong
Prior art keywords
pump
pressure
generating
rotors
pressure branch
Prior art date
Application number
HK03100973A
Inventor
Fritz-Martin Scholz
Original Assignee
Rietschle Werner Gmbh & 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 Rietschle Werner Gmbh & Co Kg filed Critical Rietschle Werner Gmbh & Co Kg
Publication of HK1048844A1 publication Critical patent/HK1048844A1/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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • 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
    • F04C2/086—Carter
    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Saccharide Compounds (AREA)

Abstract

The invention relates to a pump for generating pressure or negative pressure, comprising a chamber having a high pressure branch and a low pressure branch. Two multi-bladed rotors (28, 30) are mounted on two shafts (20, 22) that are staggered relative to one another in the pump chamber (32). A drive mechanism is minted on the front face of the rotors and a housing lid is placed on the opposite side of said rotors. The housing lid (34) is pot-shaped. Both the high pressure branch (42) and the low pressure branch (40) are integrated into the housing lid (34).
HK03100973A 1999-03-22 2003-02-11 Pump for generating pressure or negative pressure HK1048844A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29905249U DE29905249U1 (en) 1999-03-22 1999-03-22 Pump for generating pressure and negative pressure
PCT/EP2000/002536 WO2000057062A1 (en) 1999-03-22 2000-03-22 Pump for generating pressure or negative pressure

Publications (1)

Publication Number Publication Date
HK1048844A1 true HK1048844A1 (en) 2003-04-17

Family

ID=8071227

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03100973A HK1048844A1 (en) 1999-03-22 2003-02-11 Pump for generating pressure or negative pressure

Country Status (9)

Country Link
EP (1) EP1163450B1 (en)
JP (1) JP2002540346A (en)
KR (1) KR100681804B1 (en)
CN (1) CN1324239C (en)
AT (1) ATE260412T1 (en)
AU (1) AU762304B2 (en)
DE (2) DE29905249U1 (en)
HK (1) HK1048844A1 (en)
WO (1) WO2000057062A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20216504U1 (en) 2002-10-25 2003-03-06 Werner Rietschle GmbH + Co. KG, 79650 Schopfheim Displacement machine with rotors running in opposite directions
KR100651669B1 (en) * 2004-12-28 2006-12-05 이기춘 The rotary pump and multiple rotary pump employed thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057375A (en) * 1976-10-22 1977-11-08 Nachtrieb Paul W Pump structure
DE3161646D1 (en) * 1980-09-05 1984-01-19 British Nuclear Fuels Plc Pump for heavy gases
GB2101687B (en) * 1981-07-15 1984-08-30 British Oxygen Co Ltd Rotary pumping apparatus
GB2139287A (en) * 1983-05-05 1984-11-07 Dana Corp Gear-type rotary hydraulic machine
US4588358A (en) 1984-07-02 1986-05-13 Werner Rietschle Maschinen-Und Apparatebau Gmbh Rotary vane evacuating pump
ES2013417A6 (en) * 1989-03-30 1990-05-01 Inoxpa S A Housing for rotary pump.
US5207568A (en) 1991-05-15 1993-05-04 Vilter Manufacturing Corporation Rotary screw compressor and method for providing thrust bearing force compensation
US5772418A (en) 1995-04-07 1998-06-30 Tochigi Fuji Sangyo Kabushiki Kaisha Screw type compressor rotor, rotor casting core and method of manufacturing the rotor

Also Published As

Publication number Publication date
KR100681804B1 (en) 2007-02-15
EP1163450A1 (en) 2001-12-19
WO2000057062B1 (en) 2000-12-07
KR20020019892A (en) 2002-03-13
JP2002540346A (en) 2002-11-26
AU3963500A (en) 2000-10-09
CN1324239C (en) 2007-07-04
DE50005415D1 (en) 2004-04-01
ATE260412T1 (en) 2004-03-15
DE29905249U1 (en) 1999-12-30
CN1365432A (en) 2002-08-21
EP1163450B1 (en) 2004-02-25
WO2000057062A1 (en) 2000-09-28
AU762304B2 (en) 2003-06-19

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20110322