ZA984959B - Screw-spindle vacuum pump and method for operating it - Google Patents

Screw-spindle vacuum pump and method for operating it

Info

Publication number
ZA984959B
ZA984959B ZA984959A ZA984959A ZA984959B ZA 984959 B ZA984959 B ZA 984959B ZA 984959 A ZA984959 A ZA 984959A ZA 984959 A ZA984959 A ZA 984959A ZA 984959 B ZA984959 B ZA 984959B
Authority
ZA
South Africa
Prior art keywords
screw
operating
vacuum pump
compression
admission
Prior art date
Application number
ZA984959A
Other languages
English (en)
Inventor
Heiner Koesters
Christian Dahmlos
Original Assignee
Sterling Fluid Sys Gmbh
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 Sterling Fluid Sys Gmbh filed Critical Sterling Fluid Sys Gmbh
Publication of ZA984959B publication Critical patent/ZA984959B/xx

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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • 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
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • F04C2240/402—Plurality of electronically synchronised motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Coating With Molten Metal (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Manufacturing Of Printed Circuit Boards (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Press Drives And Press Lines (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Glass Compositions (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
ZA984959A 1997-06-11 1998-06-09 Screw-spindle vacuum pump and method for operating it ZA984959B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19724643A DE19724643A1 (de) 1997-06-11 1997-06-11 Schraubenverdichter und Verfahren zum Betrieb desselben

Publications (1)

Publication Number Publication Date
ZA984959B true ZA984959B (en) 1999-04-12

Family

ID=7832160

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA984959A ZA984959B (en) 1997-06-11 1998-06-09 Screw-spindle vacuum pump and method for operating it

Country Status (13)

Country Link
US (1) US6273696B1 (fr)
EP (1) EP0988453B1 (fr)
JP (1) JP4002304B2 (fr)
KR (2) KR100340166B1 (fr)
AT (1) ATE247780T1 (fr)
CA (1) CA2293618C (fr)
DE (2) DE19724643A1 (fr)
DK (1) DK0988453T3 (fr)
ES (1) ES2206958T3 (fr)
NO (1) NO327604B1 (fr)
PT (1) PT988453E (fr)
WO (1) WO1998057067A1 (fr)
ZA (1) ZA984959B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100253005A1 (en) * 2009-04-03 2010-10-07 Liarakos Nicholas P Seal for oil-free rotary displacement compressor
JP5478362B2 (ja) * 2010-05-25 2014-04-23 株式会社日立製作所 スクリュー圧縮機
DE102011050018A1 (de) * 2011-04-29 2012-10-31 Allweiler Gmbh Pumpen-System
GB2498816A (en) 2012-01-27 2013-07-31 Edwards Ltd Vacuum pump
DE102015208784B3 (de) * 2015-05-12 2016-09-15 MTU Aero Engines AG Herstellen von Schaufelkanälen von Turbomaschinenrotoren

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129877A (en) * 1956-05-17 1964-04-21 Svenska Rotor Maskiner Ab Rotary piston, positive displacement compressor
US3138320A (en) * 1959-01-15 1964-06-23 Svenska Roytor Maskiner Aktieb Fluid seal for compressor
DE2544082A1 (de) * 1975-10-02 1977-04-14 Comprotek Sa Drehkolbenmaschine
GB1570512A (en) * 1976-09-04 1980-07-02 Howden Compressors Ltd Meshing-screw gas-compressing apparatus
JPS5468510A (en) * 1977-11-11 1979-06-01 Kobe Steel Ltd Gas leak preventive method for self-lubricating screw compressor
JPS5951190A (ja) * 1982-09-17 1984-03-24 Hitachi Ltd オイルフリ−スクリユ−圧縮機の油切り装置
JPS61265381A (ja) * 1985-05-20 1986-11-25 Hitachi Ltd スクリユ−圧縮機のガス噴射装置
US4768934A (en) * 1985-11-18 1988-09-06 Eaton Corporation Port arrangement for rotary positive displacement blower
JPS6336085A (ja) * 1986-07-30 1988-02-16 Taiko Kikai Kogyo Kk スクリユウ型真空ポンプ
US4812110A (en) * 1986-08-11 1989-03-14 Kabushiki Kaisha Kobe Seiko Sho Oil-free screw compressor with bypass of cooled discharged gas
JPS63106389A (ja) * 1986-10-24 1988-05-11 Hitachi Ltd スクリユ−形真空ポンプの注入装置
DE3775553D1 (de) * 1987-05-15 1992-02-06 Leybold Ag Zweiwellenpumpe.
JPS6412092A (en) * 1987-07-01 1989-01-17 Kobe Steel Ltd Vacuum pump of screw type
US4781553A (en) * 1987-07-24 1988-11-01 Kabushiki Kaisha Kobe Seiko Sho Screw vacuum pump with lubricated bearings and a plurality of shaft sealing means
JP2515831B2 (ja) * 1987-12-18 1996-07-10 株式会社日立製作所 スクリユ―真空ポンプ
KR940000217B1 (ko) * 1989-06-05 1994-01-12 가부시기가이샤 히다찌 세이사꾸쇼 스크류 압축장치 및 그 제어장치
JPH0518381A (ja) * 1991-07-10 1993-01-26 Ebara Corp スクリユー形真空ポンプ
US5269667A (en) * 1993-02-24 1993-12-14 Ingersoll-Rand Company Removabe discharge port plate for a compressor
EP0834018B2 (fr) * 1995-06-21 2006-10-25 Sterling Industry Consult GmbH Procedé pour refroidir un compresseur à plusieurs étages et à broche hélicoidale

Also Published As

Publication number Publication date
CA2293618C (fr) 2007-09-18
KR20010013692A (ko) 2001-02-26
NO996129D0 (no) 1999-12-10
ATE247780T1 (de) 2003-09-15
DE19724643A1 (de) 1998-12-17
US6273696B1 (en) 2001-08-14
ES2206958T3 (es) 2004-05-16
NO327604B1 (no) 2009-08-31
WO1998057067A1 (fr) 1998-12-17
PT988453E (pt) 2004-01-30
CA2293618A1 (fr) 1998-12-17
JP2002504205A (ja) 2002-02-05
EP0988453A1 (fr) 2000-03-29
NO996129L (no) 1999-12-10
JP4002304B2 (ja) 2007-10-31
EP0988453B1 (fr) 2003-08-20
DE59809350D1 (de) 2003-09-25
KR100340166B1 (ko) 2002-06-10
DK0988453T3 (da) 2003-12-15
KR20010013629A (ko) 2001-02-26

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