JPH0255892A - スクリュ式真空ポンプ - Google Patents

スクリュ式真空ポンプ

Info

Publication number
JPH0255892A
JPH0255892A JP63206904A JP20690488A JPH0255892A JP H0255892 A JPH0255892 A JP H0255892A JP 63206904 A JP63206904 A JP 63206904A JP 20690488 A JP20690488 A JP 20690488A JP H0255892 A JPH0255892 A JP H0255892A
Authority
JP
Japan
Prior art keywords
valve
oil
space
valve seat
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
Application number
JP63206904A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0522079B2 (en]
Inventor
Noboru Tsuboi
壺井　昇
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP63206904A priority Critical patent/JPH0255892A/ja
Priority to US07/330,696 priority patent/US5018947A/en
Priority to DE8989106927T priority patent/DE68904263T2/de
Priority to EP89106927A priority patent/EP0355260B1/en
Publication of JPH0255892A publication Critical patent/JPH0255892A/ja
Publication of JPH0522079B2 publication Critical patent/JPH0522079B2/ja
Granted legal-status Critical Current

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
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
JP63206904A 1988-08-19 1988-08-19 スクリュ式真空ポンプ Granted JPH0255892A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP63206904A JPH0255892A (ja) 1988-08-19 1988-08-19 スクリュ式真空ポンプ
US07/330,696 US5018947A (en) 1988-08-19 1989-03-30 Screw type vacuum pump
DE8989106927T DE68904263T2 (de) 1988-08-19 1989-04-18 Vakuumpumpe der schraubenbauart.
EP89106927A EP0355260B1 (en) 1988-08-19 1989-04-18 Screw type vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63206904A JPH0255892A (ja) 1988-08-19 1988-08-19 スクリュ式真空ポンプ

Publications (2)

Publication Number Publication Date
JPH0255892A true JPH0255892A (ja) 1990-02-26
JPH0522079B2 JPH0522079B2 (en]) 1993-03-26

Family

ID=16530992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63206904A Granted JPH0255892A (ja) 1988-08-19 1988-08-19 スクリュ式真空ポンプ

Country Status (4)

Country Link
US (1) US5018947A (en])
EP (1) EP0355260B1 (en])
JP (1) JPH0255892A (en])
DE (1) DE68904263T2 (en])

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9223806D0 (en) * 1992-11-13 1993-01-06 Boc Group Plc Improvements in vacuum pumps
DE4325283A1 (de) * 1993-07-28 1995-02-02 Leybold Ag Betriebsabhängig steuerbares Ventilsystem für eine Vakuumpumpe
US5456582A (en) * 1993-12-23 1995-10-10 Sullair Corporation Compressor inlet valve with improved response time
US5388968A (en) * 1994-01-12 1995-02-14 Ingersoll-Rand Company Compressor inlet valve
AT403948B (de) * 1994-07-29 1998-06-25 Hoerbiger Ventilwerke Ag Ansaugregelventil für rotationsverdichter
US5540558A (en) * 1995-08-07 1996-07-30 Ingersoll-Rand Company Apparatus and method for electronically controlling inlet flow and preventing backflow in a compressor
DE19625565C2 (de) * 1996-06-26 1998-07-23 Bosch Gmbh Robert Kraftstoff-Förderpumpe für eine Kraftstoff-Einspritzpumpe für Brennkraftmaschinen
WO2011092930A1 (ja) * 2010-01-29 2011-08-04 アルバック機工株式会社 ポンプ
DE102011084811B3 (de) * 2011-10-19 2012-12-27 Kaeser Kompressoren Ag Gaseinlassventil für einen Kompressor, Kompressor mit einem derartigen Gaseinlassventil sowie Verfahren zum Betreiben eines Kompressors mit einem derartigen Gaseinlassventil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3687017A (en) * 1970-12-08 1972-08-29 Westinghouse Electric Corp Servo-actuator mechanism
DE3142832A1 (de) * 1981-10-29 1983-05-11 Boise Cascade Corp., 83728 Boise, Id. "vorrichtung zur herstellung einer kontinuierlichen wellpappebahn"
DD221508B3 (de) * 1984-02-29 1992-12-24 Zwetko Zwetkow Absperrventil fuer vakuumpumpen
JPS60249690A (ja) * 1984-05-21 1985-12-10 ゼネラル　シグナル　コーポレーシヨン 回転ピストン真空ポンプ
CA1279856C (en) * 1985-10-09 1991-02-05 Akira Suzuki Oilless rotary type compressor system
DE8533839U1 (de) * 1985-12-02 1987-04-09 Barmag AG, 5630 Remscheid Vakuumpumpe
JP2511870B2 (ja) * 1986-03-20 1996-07-03 株式会社日立製作所 スクリユ−真空ポンプ装置

Also Published As

Publication number Publication date
DE68904263D1 (de) 1993-02-18
EP0355260A2 (en) 1990-02-28
JPH0522079B2 (en]) 1993-03-26
US5018947A (en) 1991-05-28
EP0355260B1 (en) 1993-01-07
DE68904263T2 (de) 1993-05-06
EP0355260A3 (en) 1990-05-30

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