JPS5026769B1 - - Google Patents

Info

Publication number
JPS5026769B1
JPS5026769B1 JP44095098A JP9509869A JPS5026769B1 JP S5026769 B1 JPS5026769 B1 JP S5026769B1 JP 44095098 A JP44095098 A JP 44095098A JP 9509869 A JP9509869 A JP 9509869A JP S5026769 B1 JPS5026769 B1 JP S5026769B1
Authority
JP
Japan
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.)
Pending
Application number
JP44095098A
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 filed Critical
Publication of JPS5026769B1 publication Critical patent/JPS5026769B1/ja
Pending 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • 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
    • 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
    • F04C2220/00—Application
    • F04C2220/50—Pumps with means for introducing gas under pressure for ballasting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
JP44095098A 1968-11-29 1969-11-28 Pending JPS5026769B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77977968A 1968-11-29 1968-11-29

Publications (1)

Publication Number Publication Date
JPS5026769B1 true JPS5026769B1 (ja) 1975-09-03

Family

ID=25117537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP44095098A Pending JPS5026769B1 (ja) 1968-11-29 1969-11-28

Country Status (5)

Country Link
US (1) US3525578A (ja)
JP (1) JPS5026769B1 (ja)
DE (1) DE1948804A1 (ja)
FR (1) FR2024945A1 (ja)
GB (1) GB1277470A (ja)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123201A (en) * 1973-09-04 1978-10-31 Central Scientific Company, Inc. Modular vacuum pump assembly
DE2620375C2 (de) * 1976-05-08 1984-05-03 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar Drehschiebervakuumpumpe
US4164384A (en) * 1976-06-15 1979-08-14 Barmag Barmer Maschinenfabrik Ag Rotary vane vacuum pump with filter means for inlet
US4120621A (en) * 1976-07-19 1978-10-17 Puritan Bennett Corporation Oil sealed single stage vacuum pump
US4204815A (en) * 1977-12-06 1980-05-27 Gast Manufacturing Corporation Cartridge rotary vane pump
US4838772A (en) * 1977-12-06 1989-06-13 Gast Manufacturing Corporation Cartridge rotary vane pump
DE3420190A1 (de) * 1984-05-30 1985-12-05 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar Oelgedichtete rotationsvakuumpumpe
DE3762651D1 (de) * 1986-10-18 1990-06-13 Barmag Barmer Maschf Fluegelzellen-vakuumpumpe.
IT1234766B (it) * 1989-08-10 1992-05-26 Galileo Vacuum Tec Spa Sistema di smontaggio rapido per pompe rotative da vuoto
DE4017191A1 (de) * 1990-05-29 1991-12-05 Leybold Ag Verfahren zur oelversorgung einer zweistufigen drehschiebervakuumpumpe und fuer die durchfuehrung dieses verfahrens geeignete drehschiebervakuumpumpe
US5209653A (en) * 1992-01-17 1993-05-11 Spx Corporation Vacuum pump
DE4325286A1 (de) * 1993-07-28 1995-02-02 Leybold Ag Zweistufige Drehschiebervakuumpumpe
USD365107S (en) 1994-10-20 1995-12-12 Watsco Components, Inc. Vacuum pump
DE4439637A1 (de) * 1994-11-07 1996-05-09 Balzers Pfeiffer Gmbh Mehrstufige Drehschiebervakuumpumpe
US6881044B1 (en) 2003-10-31 2005-04-19 Gast Manufacturing Corporation Rotary vane compressor with interchangeable end plates
CN110748486B (zh) * 2019-12-07 2024-11-29 临海市谭氏真空设备有限公司 一种单轴体防反油真空泵
CN222208277U (zh) * 2021-09-13 2024-12-20 米沃奇电动工具公司 真空泵

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344745A (en) * 1967-10-03 Multiple flow rotary machine
US2902210A (en) * 1955-08-15 1959-09-01 Edwards High Vacuum Ltd Multi-stage mechanical vacuum pumps
US3226014A (en) * 1963-07-12 1965-12-28 Janenkov Nikolai Petrovich Two-stage plate rotary vacuum pumps
US3371857A (en) * 1965-10-24 1968-03-05 Prec Scient Company Multistage vacuum pump
DE1628313A1 (de) * 1966-08-20 1971-01-28 Leybold Heraeus Gmbh & Co Kg Vakuumpumpe
US3399826A (en) * 1966-08-26 1968-09-03 Cenco Instr Corp Pump with auxiliary vacuum pumping stage
US3455245A (en) * 1967-11-16 1969-07-15 Sperry Rand Corp Power transmission

Also Published As

Publication number Publication date
US3525578A (en) 1970-08-25
GB1277470A (en) 1972-06-14
DE1948804A1 (de) 1970-07-02
FR2024945A1 (ja) 1970-09-04

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