DE68903355D1 - Vakuumpumpen. - Google Patents

Vakuumpumpen.

Info

Publication number
DE68903355D1
DE68903355D1 DE8989303810T DE68903355T DE68903355D1 DE 68903355 D1 DE68903355 D1 DE 68903355D1 DE 8989303810 T DE8989303810 T DE 8989303810T DE 68903355 T DE68903355 T DE 68903355T DE 68903355 D1 DE68903355 D1 DE 68903355D1
Authority
DE
Germany
Prior art keywords
vacuum pumps
pumps
vacuum
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.)
Expired - Fee Related
Application number
DE8989303810T
Other languages
English (en)
Other versions
DE68903355T2 (de
Inventor
Henryk Wycliffe
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.)
BOC Group Ltd
Original Assignee
BOC Group Ltd
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 BOC Group Ltd filed Critical BOC Group Ltd
Application granted granted Critical
Publication of DE68903355D1 publication Critical patent/DE68903355D1/de
Publication of DE68903355T2 publication Critical patent/DE68903355T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • 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
    • F04C2220/12—Dry running
DE8989303810T 1988-04-22 1989-04-18 Vakuumpumpen. Expired - Fee Related DE68903355T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888809621A GB8809621D0 (en) 1988-04-22 1988-04-22 Dry pump with closed loop filter

Publications (2)

Publication Number Publication Date
DE68903355D1 true DE68903355D1 (de) 1992-12-10
DE68903355T2 DE68903355T2 (de) 1993-03-18

Family

ID=10635708

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8989303810T Expired - Fee Related DE68903355T2 (de) 1988-04-22 1989-04-18 Vakuumpumpen.

Country Status (6)

Country Link
US (1) US4995794A (de)
EP (1) EP0338764B1 (de)
JP (1) JP2608605B2 (de)
DE (1) DE68903355T2 (de)
ES (1) ES2035556T3 (de)
GB (1) GB8809621D0 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0365695B1 (de) * 1988-10-24 1992-11-25 Leybold Aktiengesellschaft Zweiwellenvakuumpumpe mit Schöpfraum
EP0448750B1 (de) * 1990-03-27 1996-05-01 Leybold Aktiengesellschaft Mehrstufige trockenverdichtende Vakuumpumpe und Verfahren zu ihrem Betrieb
FR2670839A1 (fr) * 1990-12-21 1992-06-26 Cit Alcatel Machine, telle que pompe a vide ou compresseur du type volumetrique ou a entrainement.
JPH06505079A (ja) * 1991-03-04 1994-06-09 バルツァース　ウント　ライボルト　ドイチュラント　ホールディング　アクチエンゲゼルシャフト 多段式の乾式運転型の真空ポンプに不活性ガスを供給する不活性ガス供給装置
FR2691382B1 (fr) * 1992-05-22 1994-09-09 Cit Alcatel Installation de pompage pour pomper une enceinte contenant des gaz mélangés à des particules solides ou susceptibles de générer des particules ou condensats solides.
US5449454A (en) * 1993-01-13 1995-09-12 Aquaria, Inc. Gas expelling device for a canister type filter
JP2922181B1 (ja) 1998-01-26 1999-07-19 株式会社宇野澤組鐵工所 粉体捕集機能を有する真空ポンプ装置
WO2005028871A1 (en) * 2003-09-23 2005-03-31 The Boc Group Plc Cleaning method of a rotary piston vacuum pump
US7094036B2 (en) * 2003-09-24 2006-08-22 The Boc Group Plc Vacuum pumping system
GB0519742D0 (en) * 2005-09-28 2005-11-09 Boc Group Plc Method of pumping gas
DE102007001316B4 (de) * 2007-01-02 2009-02-05 Deutsche Mechatronics Gmbh Entstaubungsvorrichtung und Verfahren zur Entstaubung, insbesondere von Bandanlagen
GB0922564D0 (en) * 2009-12-24 2010-02-10 Edwards Ltd Pump
US20120140166A1 (en) 2010-12-07 2012-06-07 Abbott Medical Optics Inc. Pupil dependent diffractive lens for near, intermediate, and far vision
GB2499217A (en) 2012-02-08 2013-08-14 Edwards Ltd Vacuum pump with recirculation valve
FR2993614B1 (fr) * 2012-07-19 2018-06-15 Pfeiffer Vacuum Procede et dispositif de pompage d'une chambre de procedes
EP3245403B1 (de) * 2015-01-15 2022-03-09 Atlas Copco Airpower, Naamloze Vennootschap Verfahren zur regelung der geschwindigkeit eines verdichters/einer vakuumpumpe
BE1023207B1 (nl) * 2015-01-15 2016-12-21 Atlas Copco Airpower Naamloze Vennootschap Werkwijze voor het regelen van een gastoevoer naar een vacuümpomp
BR112017014960B1 (pt) 2015-01-15 2022-10-04 Atlas Copco Airpower, Naamloze Vennootschap Método para regular a temperatura em um canal de saída, controlador para controlar o fornecimento de um gás de purga em um canal de entrada, bomba de vácuo e uso de um controlador
JP6935216B2 (ja) * 2017-03-31 2021-09-15 株式会社荏原製作所 ルーツ型真空ポンプ
DE102018203992A1 (de) * 2018-03-15 2019-09-19 Gardner Denver Schopfheim Gmbh Drehkolbenmaschine
FR3086705B1 (fr) * 2018-09-27 2020-10-23 Pfeiffer Vacuum Pompe a vide primaire de type seche et procede de controle de l'injection d'un gaz de purge

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2148671A (en) * 1937-01-08 1939-02-28 Fred L Allen Fluid injector
US3168236A (en) * 1963-09-05 1965-02-02 Jaeger Machine Co Oil scavenging system for a rotary compressor
US3536418A (en) * 1969-02-13 1970-10-27 Onezime P Breaux Cryogenic turbo-molecular vacuum pump
GB1509376A (en) * 1975-07-18 1978-05-04 Wdm Ltd Gas ballast for vacuum pumps
GB2088957B (en) * 1980-12-05 1984-12-12 Boc Ltd Rotary positive-displacement fluidmachines
IT1135031B (it) * 1981-01-14 1986-08-20 Generalvacuum Spa Perfezionamenti nelle o relativi alle pompe a capsulismo
US4534699A (en) * 1983-06-22 1985-08-13 Possell Clarence P Coal fired turbine
JPS60256584A (ja) * 1984-05-30 1985-12-18 Honjiyou Chem Kk 高真空装置
JPS62153597A (ja) * 1985-12-27 1987-07-08 Hitachi Ltd 真空ポンプ

Also Published As

Publication number Publication date
DE68903355T2 (de) 1993-03-18
EP0338764B1 (de) 1992-11-04
GB8809621D0 (en) 1988-05-25
JP2608605B2 (ja) 1997-05-07
EP0338764A3 (en) 1990-03-28
US4995794A (en) 1991-02-26
EP0338764A2 (de) 1989-10-25
ES2035556T3 (es) 1993-04-16
JPH01315682A (ja) 1989-12-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee