DE69005230D1 - Öldichtung für drehende Vakuumpumpe. - Google Patents
Öldichtung für drehende Vakuumpumpe.Info
- Publication number
- DE69005230D1 DE69005230D1 DE90304510T DE69005230T DE69005230D1 DE 69005230 D1 DE69005230 D1 DE 69005230D1 DE 90304510 T DE90304510 T DE 90304510T DE 69005230 T DE69005230 T DE 69005230T DE 69005230 D1 DE69005230 D1 DE 69005230D1
- 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
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)
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 true DE69005230D1 (de) | 1994-01-27 |
DE69005230T2 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) |
Families Citing this family (15)
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 |
JP5197142B2 (ja) * | 2008-05-12 | 2013-05-15 | 住友重機械工業株式会社 | シール構造 |
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)
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 |
-
1989
- 1989-08-10 JP JP1205802A patent/JPH0726624B2/ja not_active Expired - Lifetime
-
1990
- 1990-02-07 US US07/476,226 patent/US5022836A/en not_active Expired - Fee Related
- 1990-04-26 DE DE69005230T patent/DE69005230T2/de not_active Expired - Fee Related
- 1990-04-26 EP EP90304510A patent/EP0412634B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5022836A (en) | 1991-06-11 |
EP0412634A3 (en) | 1991-06-26 |
DE69005230T2 (de) | 1994-07-07 |
JPH0370891A (ja) | 1991-03-26 |
EP0412634A2 (de) | 1991-02-13 |
JPH0726624B2 (ja) | 1995-03-29 |
EP0412634B1 (de) | 1993-12-15 |
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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 |