DE68914320D1 - Zusammengestellte Vakuumpumpe. - Google Patents

Zusammengestellte Vakuumpumpe.

Info

Publication number
DE68914320D1
DE68914320D1 DE89107808T DE68914320T DE68914320D1 DE 68914320 D1 DE68914320 D1 DE 68914320D1 DE 89107808 T DE89107808 T DE 89107808T DE 68914320 T DE68914320 T DE 68914320T DE 68914320 D1 DE68914320 D1 DE 68914320D1
Authority
DE
Germany
Prior art keywords
vacuum pump
assembled vacuum
assembled
pump
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
DE89107808T
Other languages
English (en)
Other versions
DE68914320T2 (de
Inventor
Akira Yamamura
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.)
NIPPON FERROFLUIDICS KK
Original Assignee
NIPPON FERROFLUIDICS KK
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 NIPPON FERROFLUIDICS KK filed Critical NIPPON FERROFLUIDICS KK
Publication of DE68914320D1 publication Critical patent/DE68914320D1/de
Application granted granted Critical
Publication of DE68914320T2 publication Critical patent/DE68914320T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L21/00—Vacuum gauges
    • G01L21/16—Vacuum gauges by measuring variation of frictional resistance of gases
    • G01L21/24—Vacuum gauges by measuring variation of frictional resistance of gases using rotating members; Vacuum gauges of the Langmuir type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
    • F04D19/046—Combinations of two or more different types of pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
DE68914320T 1988-04-30 1989-04-28 Zusammengestellte Vakuumpumpe. Expired - Fee Related DE68914320T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63108177A JPH01277698A (ja) 1988-04-30 1988-04-30 複合型真空ポンプ

Publications (2)

Publication Number Publication Date
DE68914320D1 true DE68914320D1 (de) 1994-05-11
DE68914320T2 DE68914320T2 (de) 1994-07-21

Family

ID=14477945

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68914320T Expired - Fee Related DE68914320T2 (de) 1988-04-30 1989-04-28 Zusammengestellte Vakuumpumpe.

Country Status (5)

Country Link
US (1) US5092740A (de)
EP (1) EP0340685B1 (de)
JP (1) JPH01277698A (de)
KR (1) KR900016621A (de)
DE (1) DE68914320T2 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8915199U1 (de) * 1989-12-27 1990-03-22 Balzers und Leybold Deutschland Holding AG, 63450 Hanau Gasreibungspumpe
FR2656658B1 (fr) * 1989-12-28 1993-01-29 Cit Alcatel Pompe a vide turbomoleculaire mixte, a deux arbres de rotation et a refoulement a la pression atmospherique.
JPH03237295A (ja) * 1990-02-09 1991-10-23 Shimadzu Corp ターボ分子ポンプ
EP0691475B1 (de) * 1990-08-01 2001-12-12 Matsushita Electric Industrial Co., Ltd. Drehkolbenanlage für flüssige Medien
DE69132867T2 (de) * 1990-08-01 2002-09-12 Matsushita Electric Industrial Co., Ltd. Drehkolbenanlage für flüssige Medien
FR2668209B1 (fr) * 1990-10-18 1994-11-18 Hitachi Koki Kk Pompe d'aspiration moleculaire.
JP2865888B2 (ja) * 1991-03-05 1999-03-08 日本原子力研究所 マルチターボ型真空ポンプ
JP3074845B2 (ja) * 1991-10-08 2000-08-07 松下電器産業株式会社 流体回転装置
JPH05209589A (ja) * 1992-01-31 1993-08-20 Matsushita Electric Ind Co Ltd 流体回転装置
JPH05272478A (ja) * 1992-01-31 1993-10-19 Matsushita Electric Ind Co Ltd 真空ポンプ
KR100190310B1 (ko) * 1992-09-03 1999-06-01 모리시따 요오이찌 진공배기장치
US5660397A (en) * 1994-09-23 1997-08-26 Holtkamp; William H. Devices employing a liquid-free medium
DE19709206A1 (de) * 1997-03-06 1998-09-10 Leybold Vakuum Gmbh Vakuumpumpe
IT1297347B1 (it) * 1997-12-24 1999-09-01 Varian Spa Pompa da vuoto.
DE19930952A1 (de) * 1999-07-05 2001-01-11 Pfeiffer Vacuum Gmbh Vakuumpumpe
DE19933332A1 (de) * 1999-07-16 2001-01-18 Leybold Vakuum Gmbh Reibungsvakuumpumpe für den Einsatz in einem System zur Druckregelung sowie Druckregelungssystem mit einer Reibungsvakuumpumpe dieser Art
EP1234982B1 (de) * 2001-02-22 2003-12-03 VARIAN S.p.A. Vakuumpumpe
US6672828B2 (en) 2002-06-03 2004-01-06 Varian S.P.A. Vacuum pump
GB0229352D0 (en) * 2002-12-17 2003-01-22 Boc Group Plc Vacuum pumping arrangement and method of operating same
US7021888B2 (en) * 2003-12-16 2006-04-04 Universities Research Association, Inc. Ultra-high speed vacuum pump system with first stage turbofan and second stage turbomolecular pump
US20070020115A1 (en) * 2005-07-01 2007-01-25 The Boc Group, Inc. Integrated pump apparatus for semiconductor processing
US8454307B2 (en) * 2008-11-26 2013-06-04 Sta-Rite Industries, Llc Socket with bearing bore and integrated wear plate
US8164293B2 (en) * 2009-09-08 2012-04-24 Hoffman Enclosures, Inc. Method of controlling a motor
US8297369B2 (en) * 2009-09-08 2012-10-30 Sta-Rite Industries, Llc Fire-extinguishing system with servo motor-driven foam pump
US8183810B2 (en) 2009-09-08 2012-05-22 Hoffman Enclosures, Inc. Method of operating a motor
US20110056707A1 (en) * 2009-09-08 2011-03-10 Jonathan Gamble Fire-Extinguishing System and Method for Operating Servo Motor-Driven Foam Pump
DE102010044918A1 (de) * 2010-09-09 2012-03-15 Oerlikon Leybold Vacuum Gmbh Verfahren zur Bestimmung eines Arbeitsbereichs eines Hochvakuumpumpsystems
JP6009193B2 (ja) * 2012-03-30 2016-10-19 株式会社荏原製作所 真空排気装置
GB2538962B (en) * 2015-06-01 2019-06-26 Edwards Ltd Vacuum pump
JP6616611B2 (ja) * 2015-07-23 2019-12-04 エドワーズ株式会社 排気システム
JP2023125364A (ja) * 2022-02-28 2023-09-07 エドワーズ株式会社 真空排気システム
EP4108931B1 (de) * 2022-09-01 2024-06-26 Pfeiffer Vacuum Technology AG Verfahren zum betreiben einer molekularvakuumpumpe zur erzielung eines verbesserten saugvermögens

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104802A (en) * 1963-09-24 Unified system vacuum pump
US3554263A (en) * 1968-04-09 1971-01-12 Chemetron Corp Discharge apparatus
JPS44271Y1 (de) * 1968-04-11 1969-01-08
US3922110A (en) * 1974-01-28 1975-11-25 Henry Huse Multi-stage vacuum pump
DE2507430C2 (de) * 1975-02-21 1985-04-04 Franz-Josef Dipl.-Phys. Dr. 5300 Bonn Schittko Molekularvakuumpumpe mit hohem Kompressionsverhältnis für leichte Moleküle
JPS6034594B2 (ja) * 1977-11-30 1985-08-09 日本合成化学工業株式会社 芯地仮止用水溶性ホツトメルト接着剤
DE2945889A1 (de) * 1979-11-14 1981-05-27 Leybold-Heraeus GmbH, 5000 Köln Verfahren zun vorrichtung zur messung niedriger druecke
JPS6112130Y2 (de) * 1980-07-08 1986-04-16
JPS5848727A (ja) * 1981-09-09 1983-03-22 Toyota Motor Corp 内燃機関の空燃比制御装置
JPS5990784A (ja) * 1982-11-12 1984-05-25 Shimadzu Corp 真空排気装置
JPS59221634A (ja) * 1983-05-31 1984-12-13 Shimadzu Corp 真空度測定方法
JPS60188A (ja) * 1983-06-16 1985-01-05 Sony Corp Ａｃｃ回路
JPS6034594U (ja) * 1983-08-16 1985-03-09 セイコー精機株式会社 縦型タ−ボ分子ポンプ
JPS60128996A (ja) * 1983-12-15 1985-07-10 Ulvac Corp タ−ボ分子ポンプの運転監視装置
JPS60247075A (ja) * 1984-05-21 1985-12-06 Hitachi Ltd 真空ポンプ装置
JPS6138191A (ja) * 1984-07-31 1986-02-24 Agency Of Ind Science & Technol ビスコシ−ルを用いた真空ポンプ
JPS62113887A (ja) * 1985-11-13 1987-05-25 Hitachi Ltd 真空ポンプ
JPH0784871B2 (ja) * 1986-06-12 1995-09-13 株式会社日立製作所 真空排気装置

Also Published As

Publication number Publication date
EP0340685A3 (en) 1990-08-01
US5092740A (en) 1992-03-03
JPH01277698A (ja) 1989-11-08
KR900016621A (ko) 1990-11-14
EP0340685B1 (de) 1994-04-06
EP0340685A2 (de) 1989-11-08
DE68914320T2 (de) 1994-07-21

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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