GB856601A - Improvements in and relating to rotary vacuum pumps - Google Patents

Improvements in and relating to rotary vacuum pumps

Info

Publication number
GB856601A
GB856601A GB17716/59A GB1771659A GB856601A GB 856601 A GB856601 A GB 856601A GB 17716/59 A GB17716/59 A GB 17716/59A GB 1771659 A GB1771659 A GB 1771659A GB 856601 A GB856601 A GB 856601A
Authority
GB
United Kingdom
Prior art keywords
relating
vacuum pumps
rotary vacuum
geraetebauanstalt
stator
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
Application number
GB17716/59A
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.)
GERAETEBAU ANSTALT OF BALZERS
Original Assignee
GERAETEBAU ANSTALT OF BALZERS
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 GERAETEBAU ANSTALT OF BALZERS filed Critical GERAETEBAU ANSTALT OF BALZERS
Publication of GB856601A publication Critical patent/GB856601A/en
Expired 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
    • F04C18/12—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
    • F04C18/126—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 radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

856,601. Rotary pumps. GERAETEBAUANSTALT. May 25, 1959 [March 17, 1959], No. 17716/59. Class 110(2). A Roots blower is provided with a honeycomb cooler in its outlet and a heat - insulating mantle 34 of constant or variable thickness about its stator, see also Figs. 2 and 3 (not shown).
GB17716/59A 1958-03-17 1959-05-25 Improvements in and relating to rotary vacuum pumps Expired GB856601A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH856601X 1958-03-17

Publications (1)

Publication Number Publication Date
GB856601A true GB856601A (en) 1960-12-21

Family

ID=4542735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17716/59A Expired GB856601A (en) 1958-03-17 1959-05-25 Improvements in and relating to rotary vacuum pumps

Country Status (1)

Country Link
GB (1) GB856601A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0290664A1 (en) * 1987-05-15 1988-11-17 Leybold Aktiengesellschaft Two-shaft pump
US6102681A (en) * 1997-10-15 2000-08-15 Aps Technology Stator especially adapted for use in a helicoidal pump/motor
GB2383379A (en) * 2001-10-24 2003-06-25 Aisin Seiki A multi-stage vacuum pump
GB2418958A (en) * 2004-10-06 2006-04-12 Boc Group Plc Vacuum pump with enhanced exhaust heat transfer to stator
EP2180188A1 (en) * 2008-10-24 2010-04-28 Edwards Limited Improvements in and relating to Roots pumps

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0290664A1 (en) * 1987-05-15 1988-11-17 Leybold Aktiengesellschaft Two-shaft pump
US6102681A (en) * 1997-10-15 2000-08-15 Aps Technology Stator especially adapted for use in a helicoidal pump/motor
GB2383379A (en) * 2001-10-24 2003-06-25 Aisin Seiki A multi-stage vacuum pump
US6776586B2 (en) 2001-10-24 2004-08-17 Aisin Seiki Kabushiki Kaisha Multi-stage vacuum pump
GB2383379B (en) * 2001-10-24 2005-05-18 Aisin Seiki Multi-stage vacuum pump
GB2418958A (en) * 2004-10-06 2006-04-12 Boc Group Plc Vacuum pump with enhanced exhaust heat transfer to stator
EP2180188A1 (en) * 2008-10-24 2010-04-28 Edwards Limited Improvements in and relating to Roots pumps
US8500425B2 (en) 2008-10-24 2013-08-06 Edwards Limited Roots pumps
TWI482910B (en) * 2008-10-24 2015-05-01 Edwards Ltd Improvements in and relating to roots pumps

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