GB0705971D0 - Vacuum pump - Google Patents

Vacuum pump

Info

Publication number
GB0705971D0
GB0705971D0 GBGB0705971.0A GB0705971A GB0705971D0 GB 0705971 D0 GB0705971 D0 GB 0705971D0 GB 0705971 A GB0705971 A GB 0705971A GB 0705971 D0 GB0705971 D0 GB 0705971D0
Authority
GB
United Kingdom
Prior art keywords
vacuum pump
vacuum
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.)
Ceased
Application number
GBGB0705971.0A
Other languages
English (en)
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.)
Edwards Ltd
Original Assignee
BOC Group 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 BOC Group Ltd filed Critical BOC Group Ltd
Priority to GBGB0705971.0A priority Critical patent/GB0705971D0/en
Publication of GB0705971D0 publication Critical patent/GB0705971D0/en
Priority to PCT/GB2008/050128 priority patent/WO2008117082A1/fr
Priority to EP08709648A priority patent/EP2126361A1/fr
Priority to KR1020097020136A priority patent/KR20100014610A/ko
Priority to JP2010500363A priority patent/JP2010522843A/ja
Priority to US12/530,601 priority patent/US20100178187A1/en
Ceased 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
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • 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
    • 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
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • 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
    • F04C18/123—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 or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor, e.g. one tooth
    • 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
    • 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
    • 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
    • F04C2220/10—Vacuum
    • F04C2220/12—Dry running
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0436—Iron
    • F05C2201/0439—Cast iron
    • F05C2201/0442—Spheroidal graphite cast iron, e.g. nodular iron, ductile iron
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/90—Alloys not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
GBGB0705971.0A 2007-03-28 2007-03-28 Vacuum pump Ceased GB0705971D0 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GBGB0705971.0A GB0705971D0 (en) 2007-03-28 2007-03-28 Vacuum pump
PCT/GB2008/050128 WO2008117082A1 (fr) 2007-03-28 2008-02-26 Pompe à vide
EP08709648A EP2126361A1 (fr) 2007-03-28 2008-02-26 Pompe à vide
KR1020097020136A KR20100014610A (ko) 2007-03-28 2008-02-26 진공 펌프
JP2010500363A JP2010522843A (ja) 2007-03-28 2008-02-26 真空ポンプ
US12/530,601 US20100178187A1 (en) 2007-03-28 2008-02-26 Vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0705971.0A GB0705971D0 (en) 2007-03-28 2007-03-28 Vacuum pump

Publications (1)

Publication Number Publication Date
GB0705971D0 true GB0705971D0 (en) 2007-05-09

Family

ID=38050354

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB0705971.0A Ceased GB0705971D0 (en) 2007-03-28 2007-03-28 Vacuum pump

Country Status (6)

Country Link
US (1) US20100178187A1 (fr)
EP (1) EP2126361A1 (fr)
JP (1) JP2010522843A (fr)
KR (1) KR20100014610A (fr)
GB (1) GB0705971D0 (fr)
WO (1) WO2008117082A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0907298D0 (en) * 2009-04-29 2009-06-10 Edwards Ltd Vacuum pump
JP6472653B2 (ja) * 2014-03-17 2019-02-20 株式会社荏原製作所 除害機能付真空ポンプ
DE202017003212U1 (de) * 2017-06-17 2018-09-18 Leybold Gmbh Mehrstufige Wälzkolbenpumpe

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432812A (en) * 1980-04-21 1984-02-21 Caterpillar Tractor Co. Drive train gear of lower bainite alloy steel
JP2956306B2 (ja) * 1991-09-17 1999-10-04 松下電器産業株式会社 スクロール流体機械のハネおよび製作法
US20020150481A1 (en) * 1996-11-01 2002-10-17 Medis El Ltd. Toroidal compressor
JP3831115B2 (ja) * 1998-04-06 2006-10-11 大晃機械工業株式会社 ドライ真空ポンプ
EP1061260A1 (fr) * 1999-05-18 2000-12-20 Sterling Fluid Systems (Germany) GmbH Machine à déplacement positif pour des fluides compressibles
US6508639B2 (en) * 2000-05-26 2003-01-21 Industrial Technology Research Institute Combination double screw rotor assembly
DE20013338U1 (de) * 2000-08-02 2000-12-28 Rietschle Werner Gmbh & Co Kg Verdichter
JP3936849B2 (ja) * 2001-05-16 2007-06-27 スズキ株式会社 フェライト系球状黒鉛鋳鉄及びこれを用いた排気系部品
US6638040B2 (en) * 2001-12-31 2003-10-28 Industrial Technology Research Institute Dry vacuum pump
US6705848B2 (en) * 2002-01-24 2004-03-16 Copeland Corporation Powder metal scrolls
JP2003343469A (ja) * 2002-03-20 2003-12-03 Toyota Industries Corp 真空ポンプ
JP2004293377A (ja) * 2003-03-26 2004-10-21 Aisin Seiki Co Ltd 多段式ドライポンプ
JP2005098210A (ja) * 2003-09-25 2005-04-14 Aisin Seiki Co Ltd 多段ドライポンプ
ATE395515T1 (de) * 2004-10-01 2008-05-15 Lot Vacuum Co Ltd Mehrstufige trockenverdichtende vakuumpumpe mit einem roots-rotor und einem schraubenrotor
GB0518995D0 (en) * 2005-09-16 2005-10-26 Boc Group Plc Vacuum pump

Also Published As

Publication number Publication date
EP2126361A1 (fr) 2009-12-02
KR20100014610A (ko) 2010-02-10
JP2010522843A (ja) 2010-07-08
US20100178187A1 (en) 2010-07-15
WO2008117082A1 (fr) 2008-10-02

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Legal Events

Date Code Title Description
COOA Change in applicant's name or ownership of the application

Owner name: EDWARDS LIMITED

Free format text: FORMER APPLICANT(S): BOC GROUP, THE PLC

AT Applications terminated before publication under section 16(1)