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AU2002213243A1 - Multi-stage helical screw rotor - Google Patents

Multi-stage helical screw rotor

Info

Publication number
AU2002213243A1
AU2002213243A1 AU2002213243A AU1324302A AU2002213243A1 AU 2002213243 A1 AU2002213243 A1 AU 2002213243A1 AU 2002213243 A AU2002213243 A AU 2002213243A AU 1324302 A AU1324302 A AU 1324302A AU 2002213243 A1 AU2002213243 A1 AU 2002213243A1
Authority
AU
Australia
Prior art keywords
screw rotor
helical screw
stage helical
stage
rotor
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.)
Abandoned
Application number
AU2002213243A
Inventor
John R. Graber Jr.
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.)
Leybold GmbH
Original Assignee
Leybold Semiconductor Vaccum Solutions
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 Leybold Semiconductor Vaccum Solutions filed Critical Leybold Semiconductor Vaccum Solutions
Publication of AU2002213243A1 publication Critical patent/AU2002213243A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08Rotary-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
    • F04C18/12Rotary-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
    • F04C18/14Rotary-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 with toothed rotary pistons
    • F04C18/16Rotary-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 with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08Rotary-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
    • F04C18/082Details specially related to intermeshing engagement type pumps
    • F04C18/084Toothed wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
AU2002213243A 2000-10-18 2001-10-16 Multi-stage helical screw rotor Abandoned AU2002213243A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US69100900A 2000-10-18 2000-10-18
US09691009 2000-10-18
PCT/US2001/032206 WO2002033262A1 (en) 2000-10-18 2001-10-16 Multi-stage helical screw rotor

Publications (1)

Publication Number Publication Date
AU2002213243A1 true AU2002213243A1 (en) 2002-04-29

Family

ID=24774820

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002213243A Abandoned AU2002213243A1 (en) 2000-10-18 2001-10-16 Multi-stage helical screw rotor

Country Status (6)

Country Link
US (1) US7074026B2 (en)
EP (1) EP1327078B1 (en)
JP (2) JP2004536988A (en)
AU (1) AU2002213243A1 (en)
DE (1) DE60138636D1 (en)
WO (1) WO2002033262A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE516562T1 (en) * 2005-08-18 2011-07-15 Nvidia Corp METHOD AND SYSTEM FOR IMAGE SYNTHESIS
US20090288648A1 (en) * 2008-05-21 2009-11-26 Gm Global Technology Operations, Inc. Superchargers with dual integral rotors
WO2011023513A2 (en) * 2009-08-31 2011-03-03 Ralf Steffens Displacement pump having inner seal
DE102010014884A1 (en) * 2010-04-14 2011-10-20 Baratti Engineering Gmbh vacuum pump
EP2439411B1 (en) * 2010-10-06 2017-08-23 LEONARDO S.p.A. Pump assembly, in particular for helicopter lubrication
US11215180B2 (en) * 2012-06-28 2022-01-04 Sterling Industry Consult Gmbh Method and pump arrangement for evacuating a chamber
EP3568572A1 (en) * 2017-01-11 2019-11-20 Carrier Corporation Fluid machine with helically lobed rotors
US11149732B2 (en) * 2017-11-02 2021-10-19 Carrier Corporation Opposed screw compressor having non-interference system
CN112780554A (en) * 2021-02-26 2021-05-11 珠海格力电器股份有限公司 Compressor and air conditioner

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR763458A (en) 1934-04-30
GB430601A (en)
GB242652A (en) 1924-11-10 1926-02-25 Carl Oscar Josef Montelius Arrangement in rotary pumps or motors for compressible or expansive mediums
US1738602A (en) * 1925-11-19 1929-12-10 Mocigemba Emanuel Gear pump or engine
CH129677A (en) * 1927-06-30 1929-01-02 Emanuel Mocigemba Rotary piston machine.
GB481084A (en) * 1937-08-12 1938-03-04 Emanuel Mocigemba Improvements in rotary pumps
US2410172A (en) * 1941-05-31 1946-10-29 Jarvis C Marble Rotary screw wheel apparatus
GB552562A (en) 1941-09-01 1943-04-14 Stothert & Pitt Ltd Improvements to screw displacement pumps
DE1142108B (en) 1956-10-12 1963-01-03 Licencia Talalmanyokat Screw pump
US3112869A (en) * 1960-10-17 1963-12-03 Willis A Aschoff High vacuum pump
NL162721C (en) * 1969-02-12 1980-06-16 Cerpelli Orazio SCREW PUMP.
JPS5746083A (en) * 1980-09-01 1982-03-16 Shigeyoshi Osada Improved quimby pump
US4504201A (en) * 1982-11-22 1985-03-12 The Boc Group Plc Mechanical pumps
US4457680A (en) * 1983-04-27 1984-07-03 Paget Win W Rotary compressor
JPS60249689A (en) * 1984-05-25 1985-12-10 Toshiba Corp Screw compressor
US4792294A (en) * 1986-04-11 1988-12-20 Mowli John C Two-stage screw auger pumping apparatus
JPH02108888A (en) 1988-10-19 1990-04-20 Hitachi Ltd screw vacuum pump
US5348453A (en) 1990-12-24 1994-09-20 James River Corporation Of Virginia Positive displacement screw pump having pressure feedback control
JPH04370379A (en) * 1991-06-17 1992-12-22 Seiko Seiki Co Ltd Dry vacuum pump
US5393209A (en) * 1993-03-29 1995-02-28 The United States Of America As Represented By The United States Department Of Energy Double-ended ceramic helical-rotor expander
DE4316735C2 (en) 1993-05-19 1996-01-18 Bornemann J H Gmbh & Co Pumping method for operating a multi-phase screw pump and pump
JP3593365B2 (en) 1994-08-19 2004-11-24 大亜真空株式会社 Variable helix angle gear
JPH08144977A (en) * 1994-11-24 1996-06-04 Kashiyama Kogyo Kk Compound dry vacuum pump
JP3569039B2 (en) * 1995-06-29 2004-09-22 大亜真空株式会社 Screw vacuum pump
GB9604486D0 (en) * 1996-03-01 1996-05-01 Boc Group Plc Improvements in vacuum pumps
DE59806719D1 (en) 1998-04-11 2003-01-30 Bornemann J H Gmbh Split ring seal
JP4138085B2 (en) * 1998-07-29 2008-08-20 樫山工業株式会社 Screw type vacuum pump
DE19945871A1 (en) * 1999-09-24 2001-03-29 Leybold Vakuum Gmbh Screw pump, in particular screw vacuum pump, with two pump stages

Also Published As

Publication number Publication date
JP2009074554A (en) 2009-04-09
EP1327078B1 (en) 2009-05-06
US20020048524A1 (en) 2002-04-25
US7074026B2 (en) 2006-07-11
EP1327078A1 (en) 2003-07-16
JP2004536988A (en) 2004-12-09
DE60138636D1 (en) 2009-06-18
WO2002033262A1 (en) 2002-04-25

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