DE602004004693D1 - Roots-Pumpe - Google Patents

Roots-Pumpe

Info

Publication number
DE602004004693D1
DE602004004693D1 DE602004004693T DE602004004693T DE602004004693D1 DE 602004004693 D1 DE602004004693 D1 DE 602004004693D1 DE 602004004693 T DE602004004693 T DE 602004004693T DE 602004004693 T DE602004004693 T DE 602004004693T DE 602004004693 D1 DE602004004693 D1 DE 602004004693D1
Authority
DE
Germany
Prior art keywords
roots pump
roots
pump
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.)
Active
Application number
DE602004004693T
Other languages
English (en)
Other versions
DE602004004693T2 (de
Inventor
Shinya Yamamoto
Mamoru Kuwahara
Mika Fujiwara
Nobuaki Hoshino
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.)
Toyota Industries Corp
Original Assignee
Toyota Industries Corp
Toyoda Automatic Loom Works 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 Toyota Industries Corp, Toyoda Automatic Loom Works Ltd filed Critical Toyota Industries Corp
Publication of DE602004004693D1 publication Critical patent/DE602004004693D1/de
Application granted granted Critical
Publication of DE602004004693T2 publication Critical patent/DE602004004693T2/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04C18/126—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 with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B15/00—Nails; Staples
    • F16B15/02—Nails; Staples with specially-shaped heads, e.g. with enlarged surfaces
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • 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
    • F04C2250/00—Geometry
    • F04C2250/10—Geometry of the inlet or outlet
    • 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
    • F04C2280/00—Arrangements for preventing or removing deposits or corrosion
    • F04C2280/02—Preventing solid deposits in pumps, e.g. in vacuum pumps with chemical vapour deposition [CVD] processes
DE602004004693T 2003-05-19 2004-05-18 Roots-Pumpe Active DE602004004693T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003141114A JP3991918B2 (ja) 2003-05-19 2003-05-19 ルーツポンプ
JP2003141114 2003-05-19

Publications (2)

Publication Number Publication Date
DE602004004693D1 true DE602004004693D1 (de) 2007-03-29
DE602004004693T2 DE602004004693T2 (de) 2007-11-22

Family

ID=33095397

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004004693T Active DE602004004693T2 (de) 2003-05-19 2004-05-18 Roots-Pumpe

Country Status (7)

Country Link
US (1) US7108492B2 (de)
EP (1) EP1479913B1 (de)
JP (1) JP3991918B2 (de)
KR (1) KR100593234B1 (de)
CN (1) CN1330879C (de)
DE (1) DE602004004693T2 (de)
TW (1) TWI239371B (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0620144D0 (en) * 2006-10-11 2006-11-22 Boc Group Plc Vacuum pump
CN101210556B (zh) * 2006-12-31 2010-12-15 中国科学院沈阳科学仪器研制中心有限公司 一种直排大气的罗茨干式真空泵转子及其加工工艺
DE102007038966A1 (de) * 2007-08-17 2009-02-19 Busch Produktions Gmbh Mehrstufige Drehkolbenvakuumpumpe bzw. - verdichter
GB0719394D0 (en) * 2007-10-04 2007-11-14 Edwards Ltd A multi stage clam shell vacuum pump
KR20100091063A (ko) * 2009-02-09 2010-08-18 삼성전자주식회사 회전체 크리닝 장치 및 이를 갖는 진공 펌프
JP5182232B2 (ja) 2009-06-10 2013-04-17 トヨタ自動車株式会社 流体圧縮機及び燃料電池車
TWI518245B (zh) * 2010-04-19 2016-01-21 荏原製作所股份有限公司 乾真空泵裝置、排氣單元，以及消音器
JP5677202B2 (ja) * 2011-06-02 2015-02-25 株式会社荏原製作所 真空ポンプ
DE102012206698A1 (de) * 2012-04-24 2013-10-24 Robert Bosch Gmbh Hydrostatische Verdrängermaschine mit einer Gehäusetrennfläche, welche die Drehachsen der Zahnräder enthält
GB2508405B (en) 2012-11-30 2015-09-02 Edwards Ltd Vacuum pump
SG10202110897RA (en) 2015-10-02 2021-11-29 Leybold Gmbh Multi-stage rotary vane pump
DE202015006922U1 (de) * 2015-10-02 2017-01-03 Leybold Gmbh Mehrstufige Drehschieberpumpe
CN107035692A (zh) * 2016-02-04 2017-08-11 张权 一种基于罗茨泵故障模式的真空系统性能退化测量方法
GB2558954B (en) * 2017-01-24 2019-10-30 Edwards Ltd Pump sealing
DE202017001029U1 (de) 2017-02-17 2018-05-18 Leybold Gmbh Mehrstufige Wälzkolbenpumpe
FR3118650B1 (fr) * 2021-01-05 2023-03-24 Pfeiffer Vacuum Etage de pompage et pompe à vide sèche

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB309685A (en) * 1928-03-02 1929-04-18 Torkild Valdemar Hemmingsen Improvements in power plants comprising internal combustion engines and rotary motors
US3844695A (en) * 1972-10-13 1974-10-29 Calspan Corp Rotary compressor
DE3318519A1 (de) * 1983-05-20 1984-11-22 Albrecht Dr.-Ing. 7994 Langenargen Hartmann Aussenachsige drehkolbenmaschine mit kaemmeingriff
DE3414039A1 (de) * 1984-04-13 1985-10-17 Aerzener Maschinenfabrik Gmbh, 3251 Aerzen Roots-kompressor zum komprimieren von gasfoermigem foerdermedium
JPS6480786A (en) 1987-09-21 1989-03-27 Hitachi Ltd Vacuum pump
JPH0765585B2 (ja) 1988-09-28 1995-07-19 株式会社日立製作所 半導体製造装置に用いるドライスクリュ真空ポンプ
DE3887149D1 (de) * 1988-10-24 1994-02-24 Leybold Ag Zweiwellenvakuumpumpe und Verfahren zu ihrem Betrieb.
JPH0518379A (ja) * 1991-06-23 1993-01-26 Ulvac Japan Ltd 多段ルーツ型真空ポンプ
JP4000611B2 (ja) 1996-12-26 2007-10-31 松下電器産業株式会社 真空排気システム
IT1290106B1 (it) * 1997-03-17 1998-10-19 Finder Pompe Spa Soffiante volumetrica con coperchi dotati di condotto di collegamento con il collettore di mandata
JPH11315794A (ja) 1998-05-01 1999-11-16 Kashiyama Kogyo Kk 冷却機構付スクリュードライ真空ポンプ
JP2000170679A (ja) 1998-12-04 2000-06-20 Toyota Autom Loom Works Ltd 多段ルーツポンプ及び多段ポンプ装置
JP2001304115A (ja) * 2000-04-26 2001-10-31 Toyota Industries Corp 真空ポンプにおけるガス供給装置
JP2001329985A (ja) * 2000-05-22 2001-11-30 Toyota Industries Corp 真空ポンプにおける冷却構造
JP2002130170A (ja) 2000-10-23 2002-05-09 Toyota Industries Corp 真空ポンプにおける流路構造
JP2002206493A (ja) 2000-11-10 2002-07-26 Ebara Corp スクリュー式ドライ真空ポンプ
JP2002221178A (ja) 2001-01-29 2002-08-09 Toyota Industries Corp 真空ポンプにおける軸封構造
JP3963682B2 (ja) 2001-09-17 2007-08-22 株式会社荏原製作所 容積式ドライ真空ポンプ

Also Published As

Publication number Publication date
EP1479913B1 (de) 2007-02-14
TWI239371B (en) 2005-09-11
CN1550674A (zh) 2004-12-01
JP2004346748A (ja) 2004-12-09
KR100593234B1 (ko) 2006-06-28
JP3991918B2 (ja) 2007-10-17
KR20040100936A (ko) 2004-12-02
US20040241027A1 (en) 2004-12-02
US7108492B2 (en) 2006-09-19
CN1330879C (zh) 2007-08-08
TW200426307A (en) 2004-12-01
EP1479913A3 (de) 2005-08-24
DE602004004693T2 (de) 2007-11-22
EP1479913A2 (de) 2004-11-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition