DE29720541U1 - Screw gas pump - Google Patents

Screw gas pump

Info

Publication number
DE29720541U1
DE29720541U1 DE29720541U DE29720541U DE29720541U1 DE 29720541 U1 DE29720541 U1 DE 29720541U1 DE 29720541 U DE29720541 U DE 29720541U DE 29720541 U DE29720541 U DE 29720541U DE 29720541 U1 DE29720541 U1 DE 29720541U1
Authority
DE
Germany
Prior art keywords
gas pump
screw gas
screw
pump
gas
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 - Lifetime
Application number
DE29720541U
Other languages
German (de)
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.)
SIHI Ind Consult GmbH
Original Assignee
SIHI Ind Consult GmbH
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 SIHI Ind Consult GmbH filed Critical SIHI Ind Consult GmbH
Priority to DE29720541U priority Critical patent/DE29720541U1/en
Publication of DE29720541U1 publication Critical patent/DE29720541U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/084—Toothed wheels
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Separation By Absorption (AREA)
DE29720541U 1997-11-19 1997-11-19 Screw gas pump Expired - Lifetime DE29720541U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29720541U DE29720541U1 (en) 1997-11-19 1997-11-19 Screw gas pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29720541U DE29720541U1 (en) 1997-11-19 1997-11-19 Screw gas pump

Publications (1)

Publication Number Publication Date
DE29720541U1 true DE29720541U1 (en) 1999-03-18

Family

ID=8048851

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29720541U Expired - Lifetime DE29720541U1 (en) 1997-11-19 1997-11-19 Screw gas pump

Country Status (1)

Country Link
DE (1) DE29720541U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941787A1 (en) * 1999-09-02 2001-03-08 Leybold Vakuum Gmbh Screw vacuum pump with screw gears with changing pitch
EP1130263A2 (en) * 2000-02-23 2001-09-05 The BOC Group plc Helical gear vacuum pump
EP1421282A1 (en) * 2001-08-27 2004-05-26 Arthur Vanmoor Fluid displacement pump with backpressure stop
ITUA20162325A1 (en) * 2016-04-05 2017-10-05 Antonio Chessa A twin-screw volumetric pump

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941787A1 (en) * 1999-09-02 2001-03-08 Leybold Vakuum Gmbh Screw vacuum pump with screw gears with changing pitch
WO2001018399A1 (en) 1999-09-02 2001-03-15 Leybold Vakuum Gmbh Screw vacuum pump, comprising screw threads with a changing gradient
DE19941787B4 (en) * 1999-09-02 2011-06-16 Leybold Vakuum Gmbh Screw vacuum pump with screw flights with changing pitch
EP1130263A2 (en) * 2000-02-23 2001-09-05 The BOC Group plc Helical gear vacuum pump
EP1130263A3 (en) * 2000-02-23 2002-07-24 The BOC Group plc Helical gear vacuum pump
EP1421282A1 (en) * 2001-08-27 2004-05-26 Arthur Vanmoor Fluid displacement pump with backpressure stop
EP1421282A4 (en) * 2001-08-27 2005-03-09 Arthur Vanmoor Fluid displacement pump with backpressure stop
ITUA20162325A1 (en) * 2016-04-05 2017-10-05 Antonio Chessa A twin-screw volumetric pump

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19990429

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20010216

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20040330

R152 Utility model maintained after payment of third maintenance fee after eight years

Effective date: 20060201

R071 Expiry of right