ATE92159T1 - PROCEDURE FOR OPERATING A VOLUMETRIC PUMP. - Google Patents

PROCEDURE FOR OPERATING A VOLUMETRIC PUMP.

Info

Publication number
ATE92159T1
ATE92159T1 AT90120721T AT90120721T ATE92159T1 AT E92159 T1 ATE92159 T1 AT E92159T1 AT 90120721 T AT90120721 T AT 90120721T AT 90120721 T AT90120721 T AT 90120721T AT E92159 T1 ATE92159 T1 AT E92159T1
Authority
AT
Austria
Prior art keywords
gas
volumetric pump
procedure
operating
pumps
Prior art date
Application number
AT90120721T
Other languages
German (de)
Inventor
Jean-Marie Crinquette
Eric Taberlet
Original Assignee
Cit Alcatel
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=9387014&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE92159(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cit Alcatel filed Critical Cit Alcatel
Application granted granted Critical
Publication of ATE92159T1 publication Critical patent/ATE92159T1/en

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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Reciprocating Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Rotary Pumps (AREA)

Abstract

The object of the invention is a volumetric pump comprising a rotor turning in a stator with a given clearance, used for the pumping of a gas or a gas mixture of given molecular mass, characterised in that it comprises means for injecting into the said clearance a gas of higher molecular mass than that of the pumped gas or gas mixture. Applications to vane pumps, Roots pumps, double cylindrical or conical screw pumps, etc. <IMAGE>
AT90120721T 1989-11-02 1990-10-29 PROCEDURE FOR OPERATING A VOLUMETRIC PUMP. ATE92159T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8914354A FR2653831A1 (en) 1989-11-02 1989-11-02 VOLUMETRIC PUMP.
EP90120721A EP0426078B1 (en) 1989-11-02 1990-10-29 Method of operating a volumetric pump

Publications (1)

Publication Number Publication Date
ATE92159T1 true ATE92159T1 (en) 1993-08-15

Family

ID=9387014

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90120721T ATE92159T1 (en) 1989-11-02 1990-10-29 PROCEDURE FOR OPERATING A VOLUMETRIC PUMP.

Country Status (7)

Country Link
EP (1) EP0426078B1 (en)
JP (1) JPH0730744B2 (en)
AT (1) ATE92159T1 (en)
DE (1) DE69002439T2 (en)
ES (1) ES2042175T3 (en)
FR (1) FR2653831A1 (en)
RU (1) RU1831588C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2691382B1 (en) * 1992-05-22 1994-09-09 Cit Alcatel Pumping installation for pumping an enclosure containing gases mixed with solid particles or liable to generate solid particles or condensates.
DE19819538C2 (en) * 1998-04-30 2000-02-17 Rietschle Werner Gmbh & Co Kg Pressure suction pump
GB0719394D0 (en) * 2007-10-04 2007-11-14 Edwards Ltd A multi stage clam shell vacuum pump
DE102010044918A1 (en) * 2010-09-09 2012-03-15 Oerlikon Leybold Vacuum Gmbh Method for determination of working area of high vacuum pumping system, involves describing maximum amount of gas intakeable into high vacuum pump by upper border lines, and defining area lying below curves as working area
JP5627035B2 (en) * 2012-06-18 2014-11-19 株式会社ササクラ Evaporative air conditioner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB385192A (en) * 1932-05-10 1932-12-22 Otto Becker Junior Improvements in and relating to rotary blowers
SE317154B (en) * 1959-01-15 1969-11-10 Svenska Rotor Maskiner Ab
JPS5517236A (en) * 1978-07-19 1980-02-06 Mitsubishi Electric Corp Manufacturing method of mica plate for commutator segment
JP2515831B2 (en) * 1987-12-18 1996-07-10 株式会社日立製作所 Screen vacuum pump

Also Published As

Publication number Publication date
DE69002439T2 (en) 1993-11-18
JPH0730744B2 (en) 1995-04-10
JPH03160185A (en) 1991-07-10
ES2042175T3 (en) 1993-12-01
FR2653831A1 (en) 1991-05-03
RU1831588C (en) 1993-07-30
EP0426078A1 (en) 1991-05-08
EP0426078B1 (en) 1993-07-28
DE69002439D1 (en) 1993-09-02

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties