ATE382792T1 - Trockene vakuumpumpe - Google Patents

Trockene vakuumpumpe

Info

Publication number
ATE382792T1
ATE382792T1 AT98918122T AT98918122T ATE382792T1 AT E382792 T1 ATE382792 T1 AT E382792T1 AT 98918122 T AT98918122 T AT 98918122T AT 98918122 T AT98918122 T AT 98918122T AT E382792 T1 ATE382792 T1 AT E382792T1
Authority
AT
Austria
Prior art keywords
piston
cylinder liner
valve plate
vacuum pump
flat face
Prior art date
Application number
AT98918122T
Other languages
English (en)
Inventor
John Eldridge
Original Assignee
Pfeiffer Vacuum 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 Pfeiffer Vacuum Gmbh filed Critical Pfeiffer Vacuum Gmbh
Application granted granted Critical
Publication of ATE382792T1 publication Critical patent/ATE382792T1/de

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0073—Piston machines or pumps characterised by having positively-driven valving the member being of the lost-motion type, e.g. friction-actuated members, or having means for pushing it against or pulling it from its seat

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Drying Of Solid Materials (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
AT98918122T 1997-04-21 1998-04-17 Trockene vakuumpumpe ATE382792T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/845,192 US5921755A (en) 1997-04-21 1997-04-21 Dry vacuum pump

Publications (1)

Publication Number Publication Date
ATE382792T1 true ATE382792T1 (de) 2008-01-15

Family

ID=25294614

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98918122T ATE382792T1 (de) 1997-04-21 1998-04-17 Trockene vakuumpumpe

Country Status (6)

Country Link
US (1) US5921755A (de)
EP (1) EP0977948B1 (de)
JP (1) JP4004073B2 (de)
AT (1) ATE382792T1 (de)
DE (1) DE69838946T2 (de)
WO (1) WO1998048170A1 (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1009433A3 (nl) * 1995-06-20 1997-03-04 Atlas Copco Airpower Nv Zuigermechanisme met doorvoer doorheen de zuiger.
US6120035A (en) * 1998-08-26 2000-09-19 Welker Engineering Company Mating ring seal members with beveled mitered interface
US6666656B2 (en) 2001-10-12 2003-12-23 Hans-Georg G. Pressel Compressor apparatus
KR100461233B1 (ko) * 2001-12-03 2004-12-14 삼성광주전자 주식회사 유체 압축장치
DE10247336A1 (de) * 2002-10-10 2004-04-22 Pfeiffer Vacuum Gmbh Kolbenmaschine zur Förderung von Gasen
DE10337298A1 (de) * 2003-08-14 2005-03-03 Pfeiffer Vacuum Gmbh Dichtungsanordnung für ein Zylinder-Kolben-System
DE10339838A1 (de) * 2003-08-29 2005-03-17 Pfeiffer Vacuum Gmbh Vakuumpumpe
DE10352970A1 (de) * 2003-11-13 2005-06-09 Pfeiffer Vacuum Gmbh Dichtungsanordnung für ein Zylinder-Kolben-System
DE102004024562A1 (de) * 2004-05-18 2005-12-15 Pfeiffer Vacuum Gmbh Trocken laufende Kolbenvakuumpumpe
US20080075610A1 (en) * 2004-11-02 2008-03-27 Fisher & Paykel Appliances Limited Linear Compressor Cylinder and Head Construction
US20070065321A1 (en) * 2005-09-21 2007-03-22 Durham Kevin P Elastomeric reciprocating compressor valve spring
DE102006012532A1 (de) * 2006-03-18 2007-09-20 Pfeiffer Vacuum Gmbh Dichtungsanordnung für eine Hubkolbenvakuumpumpe
DE102006050943B4 (de) * 2006-10-28 2020-04-16 Pfeiffer Vacuum Gmbh Vakuumpumpe und Verfahren zum Betrieb derselben
DE102008061897A1 (de) * 2008-12-11 2010-06-17 Pfeiffer Vacuum Gmbh Kolbenvakuumpumpe
US20130202416A1 (en) 2010-10-08 2013-08-08 Ulvac, Inc. Drive device
KR101173168B1 (ko) 2010-11-17 2012-08-16 데이비드 김 다단형 건식 진공펌프
JP5733994B2 (ja) * 2011-01-20 2015-06-10 アルバック機工株式会社 ピストン
US9435322B2 (en) * 2012-01-19 2016-09-06 Ge Oil & Gas Compression Systems, Llc Valveless reciprocating compressor
US9702350B2 (en) 2012-01-19 2017-07-11 Ge Oil & Gas Compression Systems, Llc Valveless reciprocating compressor
CN103452801B (zh) * 2013-06-04 2016-01-20 浙江吉利汽车研究院有限公司杭州分公司 抽真空平衡曲轴箱压力装置
WO2015012800A1 (en) * 2013-07-23 2015-01-29 Halliburton Energy Services, Inc. Erosion, corrosion, and fatigue prevention for high-pressure pumps
CN103352826A (zh) * 2013-07-31 2013-10-16 南通龙鹰真空泵业有限公司 一种无油立式真空泵
CN103899512A (zh) * 2014-02-13 2014-07-02 吴先亮 一种气室转换周复式两用泵
FR3033558B1 (fr) * 2015-03-12 2017-02-24 Arkema France Procede ameliore de production d'acide (meth)acrylique
CN107387364B (zh) * 2017-08-25 2020-09-08 康沣生物科技(上海)有限公司 一种真空系统
US10774830B2 (en) * 2018-04-03 2020-09-15 Graco Minnesota Inc. Self-lubricating pump throat seal
CN110513272B (zh) * 2019-10-11 2024-06-25 杭州千岛泵业有限公司 一种立式单程防腐真空泵及立式双程防腐真空泵
CN110726280A (zh) * 2019-11-20 2020-01-24 海信（山东）冰箱有限公司 一种低温储藏装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2258426A (en) * 1938-10-26 1941-10-07 Gen Motors Corp Refrigerating apparatus
US2478294A (en) * 1945-08-29 1949-08-09 Madsen Tage Pistons for combustion, steam, and other engines
US2751146A (en) * 1951-10-29 1956-06-19 Dalmo Victor Company Air compressor
US2817562A (en) * 1953-07-01 1957-12-24 Gen Motors Corp Coated piston
US3338509A (en) * 1965-07-07 1967-08-29 Borg Warner Compressors

Also Published As

Publication number Publication date
EP0977948A1 (de) 2000-02-09
DE69838946D1 (de) 2008-02-14
EP0977948A4 (de) 2004-06-02
JP2001522426A (ja) 2001-11-13
WO1998048170A1 (en) 1998-10-29
EP0977948B1 (de) 2008-01-02
US5921755A (en) 1999-07-13
JP4004073B2 (ja) 2007-11-07
DE69838946T2 (de) 2008-12-18

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Legal Events

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