DE69005230T2 - Öldichtung für drehende Vakuumpumpe. - Google Patents

Öldichtung für drehende Vakuumpumpe.

Info

Publication number
DE69005230T2
DE69005230T2 DE69005230T DE69005230T DE69005230T2 DE 69005230 T2 DE69005230 T2 DE 69005230T2 DE 69005230 T DE69005230 T DE 69005230T DE 69005230 T DE69005230 T DE 69005230T DE 69005230 T2 DE69005230 T2 DE 69005230T2
Authority
DE
Germany
Prior art keywords
vacuum pump
oil seal
rotating vacuum
rotating
seal
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
DE69005230T
Other languages
English (en)
Other versions
DE69005230D1 (de
Inventor
Kiyonori Tokumitsu
Akira Baba
Sandanori Hirano
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16512926&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69005230(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Application granted granted Critical
Publication of DE69005230D1 publication Critical patent/DE69005230D1/de
Publication of DE69005230T2 publication Critical patent/DE69005230T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C27/009—Shaft sealings specially adapted for pumps
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/02—Liquid sealing for high-vacuum pumps or for compressors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
DE69005230T 1989-08-10 1990-04-26 Öldichtung für drehende Vakuumpumpe. Expired - Fee Related DE69005230T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1205802A JPH0726624B2 (ja) 1989-08-10 1989-08-10 油回転真空ポンプの軸封装置

Publications (2)

Publication Number Publication Date
DE69005230D1 DE69005230D1 (de) 1994-01-27
DE69005230T2 true DE69005230T2 (de) 1994-07-07

Family

ID=16512926

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69005230T Expired - Fee Related DE69005230T2 (de) 1989-08-10 1990-04-26 Öldichtung für drehende Vakuumpumpe.

Country Status (4)

Country Link
US (1) US5022836A (de)
EP (1) EP0412634B1 (de)
JP (1) JPH0726624B2 (de)
DE (1) DE69005230T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009018420B4 (de) 2008-05-12 2022-10-20 Sumitomo Heavy Industries, Ltd. Dichtungsstruktur

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017194A1 (de) * 1990-05-29 1991-12-05 Leybold Ag Drehschiebervakuumpumpe
DE4125498A1 (de) * 1991-08-01 1993-02-04 Leybold Ag Radialwellendichtring
JPH0558891U (ja) * 1992-01-20 1993-08-03 三輪精機株式会社 自動車用真空ポンプ
DE4238271A1 (de) * 1992-11-13 1994-05-19 Leybold Ag Zweiwellenvakuumpumpe
JP2002122087A (ja) * 2000-10-17 2002-04-26 Toyota Industries Corp 真空ポンプにおける軸封構造
GB2394007A (en) * 2002-10-10 2004-04-14 Compair Uk Ltd Oil sealed rotary vane compressor
GB2400891A (en) * 2003-04-23 2004-10-27 Boc Group Plc Dry pump oil sump and lubricant conduits
JP2006097619A (ja) * 2004-09-30 2006-04-13 Sanyo Electric Co Ltd 圧縮機
US8225968B2 (en) * 2009-05-12 2012-07-24 Illinois Tool Works Inc. Seal system for gear pumps
DE202009010890U1 (de) * 2009-08-10 2009-12-03 Joma-Polytec Kunststofftechnik Gmbh Vakuumpumpe
CN105299231B (zh) * 2015-11-10 2017-04-12 中国工程物理研究院激光聚变研究中心 一种真空转动密封装置
US10054226B1 (en) * 2015-11-25 2018-08-21 Billy Dean Watson Mechanical sealing system
US10760737B2 (en) * 2016-08-10 2020-09-01 Irwin Industrial Tool Company Pump with angled drain system
EP3376033B1 (de) * 2017-03-14 2020-11-25 Leybold GmbH Ölgedichtete vakuumpumpe

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH403417A (de) * 1960-04-08 1965-11-30 Philips Nv Dichtungsvorrichtung zwischen zwei relativ zueinander hin- und herbeweglichen, koaxial angeordneten Elementen
FR1327273A (fr) * 1962-04-06 1963-05-17 Sud Aviation Perfectionnements aux pompes à vide du type à palettes
BE794380A (fr) * 1972-01-29 1973-05-16 Pumpenfabrik Urach Garniture d'etancheite pour pistons, tiges de piston ou analogues, comportant une douille d'etancheite servant a rendre etanche la fente axiale
DE3026877C2 (de) * 1980-07-16 1983-06-09 Herbert Hänchen KG, 7302 Ostfildern Reibungsarme Dichtung
DE3218255A1 (de) * 1982-05-14 1983-11-17 Ficht GmbH, 8011 Kirchseeon Anordnung zum abdichten von annaehernd geradlinig hin- und herbeweglichen kolbenstangen einer zweitakt-brennkraftmaschine
DD223329A3 (de) * 1983-01-28 1985-06-05 Medizin Labortechnik Veb K Druckoelschmierung fuer rotierende vakuumpumpen
JPS59155664A (ja) * 1983-02-23 1984-09-04 Japan Tobacco Inc 往復運動軸のオイルシ−ル装置
JP2550604B2 (ja) * 1987-09-14 1996-11-06 トヨタ自動車株式会社 安全監視装置の被監視物体検出方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009018420B4 (de) 2008-05-12 2022-10-20 Sumitomo Heavy Industries, Ltd. Dichtungsstruktur

Also Published As

Publication number Publication date
EP0412634B1 (de) 1993-12-15
JPH0370891A (ja) 1991-03-26
EP0412634A2 (de) 1991-02-13
JPH0726624B2 (ja) 1995-03-29
DE69005230D1 (de) 1994-01-27
US5022836A (en) 1991-06-11
EP0412634A3 (en) 1991-06-26

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8320 Willingness to grant licences declared (paragraph 23)
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee