EP0280892A3 - Vaccum pump with a device for counting the revolutions - Google Patents
Vaccum pump with a device for counting the revolutions Download PDFInfo
- Publication number
- EP0280892A3 EP0280892A3 EP88101450A EP88101450A EP0280892A3 EP 0280892 A3 EP0280892 A3 EP 0280892A3 EP 88101450 A EP88101450 A EP 88101450A EP 88101450 A EP88101450 A EP 88101450A EP 0280892 A3 EP0280892 A3 EP 0280892A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- revolutions
- counting
- vaccum pump
- vaccum
- 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.)
- Granted
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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0094—Indicators of rotational movement
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/86—Detection
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Measuring Volume Flow (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8703108U | 1987-02-28 | ||
DE8703108U DE8703108U1 (en) | 1987-02-28 | 1987-02-28 | Vacuum pump with a device for measuring speed |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0280892A2 EP0280892A2 (en) | 1988-09-07 |
EP0280892A3 true EP0280892A3 (en) | 1989-04-05 |
EP0280892B1 EP0280892B1 (en) | 1992-10-28 |
Family
ID=6805337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88101450A Expired - Lifetime EP0280892B1 (en) | 1987-02-28 | 1988-02-02 | Vaccum pump with a device for counting the revolutions |
Country Status (4)
Country | Link |
---|---|
US (1) | US4822251A (en) |
EP (1) | EP0280892B1 (en) |
JP (1) | JPS63215887A (en) |
DE (2) | DE8703108U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107061286A (en) * | 2016-12-12 | 2017-08-18 | 无锡吴创环境科技有限公司 | Roots blower bearing clearance is eliminated and end clearance adjustment structure |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03222895A (en) * | 1990-01-26 | 1991-10-01 | Hitachi Koki Co Ltd | Thread-grooved vacuum pump |
US5238362A (en) * | 1990-03-09 | 1993-08-24 | Varian Associates, Inc. | Turbomolecular pump |
JPH04219493A (en) * | 1990-08-10 | 1992-08-10 | Ebara Corp | Turbo-molecular pump |
JP3408309B2 (en) * | 1994-02-10 | 2003-05-19 | 株式会社東芝 | Hermetic compressor and refrigeration system using this compressor |
JP3010529B1 (en) * | 1998-08-28 | 2000-02-21 | セイコー精機株式会社 | Vacuum pump and vacuum device |
JP3047292B1 (en) * | 1998-11-24 | 2000-05-29 | セイコー精機株式会社 | Turbo molecular pump and vacuum device |
US6491829B2 (en) * | 1999-12-24 | 2002-12-10 | Takashi Nishimoto | Method and unit for processing contaminated liquid |
JP2002070787A (en) * | 2000-08-25 | 2002-03-08 | Kashiyama Kogyo Kk | Vacuum pump |
JP2002295398A (en) * | 2001-03-28 | 2002-10-09 | Boc Edwards Technologies Ltd | Device and method for protecting turbo molecular pump |
DE10150015A1 (en) * | 2001-10-11 | 2003-04-17 | Leybold Vakuum Gmbh | Multiple chamber plant used for degassing, coating or etching substrates comprises an evacuating system connected to chambers |
DE102004024554B4 (en) * | 2004-05-18 | 2018-01-25 | Pfeiffer Vacuum Gmbh | Oil-sealed rotary vane vacuum pump |
FR2925592A3 (en) * | 2007-12-19 | 2009-06-26 | Renault Sas | Vacuum pump for use as braking assistance device in motor vehicle, has drive shaft freely rotated in pump casing and connected to rotatable cam shaft of combustion engine of motor vehicle, and sensor detecting rotation of shaft |
JP5719592B2 (en) * | 2008-07-14 | 2015-05-20 | エドワーズ株式会社 | Vacuum pump |
DE102010012850A1 (en) * | 2010-03-25 | 2011-09-29 | Sauer-Danfoss Aps | Fluid rotary machine with a sensor arrangement |
JP5901613B2 (en) * | 2010-04-30 | 2016-04-13 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲーSchaeffler Technologies AG & Co. KG | Hydraulic pressure feeder and electrohydraulic control module |
US9336990B2 (en) * | 2013-08-29 | 2016-05-10 | Varian Semiconductor Equipment Associates, Inc. | Semiconductor process pumping arrangements |
CN104295358A (en) * | 2014-10-20 | 2015-01-21 | 广西玉柴机器股份有限公司 | Water pump of engine |
US11619224B2 (en) * | 2016-10-31 | 2023-04-04 | Mitsubishi Electric Corporation | Degradation diagnostic device and air-conditioning apparatus |
WO2020095768A1 (en) * | 2018-11-09 | 2020-05-14 | Kyb株式会社 | Electric pump |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1142139A (en) * | 1955-03-12 | 1957-09-13 | Charmilles Sa Ateliers | Circulator comprising a device for indicating its direction of rotation |
DE3335864A1 (en) * | 1983-10-03 | 1985-04-11 | Robert Bosch Gmbh, 7000 Stuttgart | Inductive rod sensor having an electric coil |
EP0194213A1 (en) * | 1985-02-26 | 1986-09-10 | Société à Responsabilité Limitée L'ELECTRICFIL INDUSTRIE | Electromagnetic sensors |
GB2183847A (en) * | 1985-12-05 | 1987-06-10 | Teves Metallwaren Alfred | Inductive pulse generator |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1927799A (en) * | 1932-03-07 | 1933-09-19 | Goulds Pumps | Rotary pump |
US4180375A (en) * | 1977-01-21 | 1979-12-25 | Altex Scientific, Inc. | Liquid chromatography pump |
US4328824A (en) * | 1979-12-10 | 1982-05-11 | General Electric Company | Flow divider with plural metering gears, unrestrained spacers there-between and lubricated end roller bearings |
US4384825A (en) * | 1980-10-31 | 1983-05-24 | The Bendix Corporation | Personal sampling pump |
DE3047699A1 (en) * | 1980-12-18 | 1982-07-01 | Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar | ROLLING PISTON PUMP WITH PRESSURE COMPENSATION CHAMBER |
US4500268A (en) * | 1982-09-30 | 1985-02-19 | Chandler Evans Inc | Rotary pump having brake means with thermal fuse |
JPS5963709U (en) * | 1982-10-21 | 1984-04-26 | 三菱電機株式会社 | Control equipment for pressure equipment |
JPS59131061U (en) * | 1983-02-22 | 1984-09-03 | 株式会社ボッシュオートモーティブ システム | Vane compressor rotation detector |
JPS60178985A (en) * | 1984-02-24 | 1985-09-12 | Sanden Corp | Compressor having rotation detecting function |
DE3410905A1 (en) * | 1984-03-24 | 1985-10-03 | Leybold-Heraeus GmbH, 5000 Köln | DEVICE FOR CONVEYING GASES IN SUBATMOSPHAERIC PRESSURES |
-
1987
- 1987-02-28 DE DE8703108U patent/DE8703108U1/en not_active Expired
-
1988
- 1988-02-02 EP EP88101450A patent/EP0280892B1/en not_active Expired - Lifetime
- 1988-02-02 DE DE8888101450T patent/DE3875499D1/en not_active Expired - Fee Related
- 1988-02-17 JP JP63032984A patent/JPS63215887A/en active Pending
- 1988-02-29 US US07/162,222 patent/US4822251A/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1142139A (en) * | 1955-03-12 | 1957-09-13 | Charmilles Sa Ateliers | Circulator comprising a device for indicating its direction of rotation |
DE3335864A1 (en) * | 1983-10-03 | 1985-04-11 | Robert Bosch Gmbh, 7000 Stuttgart | Inductive rod sensor having an electric coil |
EP0194213A1 (en) * | 1985-02-26 | 1986-09-10 | Société à Responsabilité Limitée L'ELECTRICFIL INDUSTRIE | Electromagnetic sensors |
GB2183847A (en) * | 1985-12-05 | 1987-06-10 | Teves Metallwaren Alfred | Inductive pulse generator |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107061286A (en) * | 2016-12-12 | 2017-08-18 | 无锡吴创环境科技有限公司 | Roots blower bearing clearance is eliminated and end clearance adjustment structure |
Also Published As
Publication number | Publication date |
---|---|
EP0280892A2 (en) | 1988-09-07 |
DE8703108U1 (en) | 1988-03-31 |
DE3875499D1 (en) | 1992-12-03 |
JPS63215887A (en) | 1988-09-08 |
EP0280892B1 (en) | 1992-10-28 |
US4822251A (en) | 1989-04-18 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Effective date: 19891204 |
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ITF | It: translation for a ep patent filed |
Owner name: DE DOMINICIS & MAYER S.R.L. |
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