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GB201201555D0 - Pump - Google Patents

Pump

Info

Publication number
GB201201555D0
GB201201555D0 GBGB1201555.8A GB201201555A GB201201555D0 GB 201201555 D0 GB201201555 D0 GB 201201555D0 GB 201201555 A GB201201555 A GB 201201555A GB 201201555 D0 GB201201555 D0 GB 201201555D0
Authority
GB
United Kingdom
Prior art keywords
stator
stages
stage
inter
pumping chambers
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.)
Withdrawn
Application number
GBGB1201555.8A
Other versions
GB2498807A (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
Edwards 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 Edwards Ltd filed Critical Edwards Ltd
Priority to GB1201555.8A priority Critical patent/GB2498807A/en
Publication of GB201201555D0 publication Critical patent/GB201201555D0/en
Priority to TW101145165A priority patent/TW201341663A/en
Priority to KR1020147021166A priority patent/KR20140119711A/en
Priority to EP13703637.2A priority patent/EP2809880A2/en
Priority to PCT/GB2013/050188 priority patent/WO2013114093A2/en
Priority to JP2014555306A priority patent/JP2015509165A/en
Priority to CN201380007075.6A priority patent/CN104126053A/en
Priority to US14/374,771 priority patent/US20150037187A1/en
Publication of GB2498807A publication Critical patent/GB2498807A/en
Withdrawn legal-status Critical Current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
    • F04C18/123—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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
    • 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
    • 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
    • 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
    • F04C23/003—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 having complementary function
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/70—Disassembly methods
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/80—Repairing methods
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/85—Methods for improvement by repair or exchange of parts
    • 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
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/805—Fastening means, e.g. bolts

Landscapes

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

Abstract

A multi-stage vacuum pump 10 which has multiple pumping stages 12, 14, 16, 18, where the pump comprises a stator forming the pumping chambers 32, 34, 36, 38 of respective pumping stages and at least one shaft 40, 42 for supporting multiple rotors 44a, 44b, 46a, 46b, 48a, 48b, 50a, 50b for rotation in respective pumping chambers. The stator comprises a stator envelope 20, which extends over an axial extent of multiple stator stages circumscribing the shaft and forming an internal profile of multiple stator stages, and a plurality of transverse walls 22, 24, 26, 28, 30 located on either axial side of the stator stages to form respective pumping chambers. At least one of the transverse walls is an inter-stage 26, 28, 30 between stator stages and the stator envelope is configured to circumscribe the inter-stage for location of the inter-stage radially inward of the stator part.
GB1201555.8A 2012-01-30 2012-01-30 Multi-stage vacuum pump with solid stator Withdrawn GB2498807A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB1201555.8A GB2498807A (en) 2012-01-30 2012-01-30 Multi-stage vacuum pump with solid stator
TW101145165A TW201341663A (en) 2012-01-30 2012-11-30 Pump
KR1020147021166A KR20140119711A (en) 2012-01-30 2013-01-29 Multi-stage pump with transverse wall
EP13703637.2A EP2809880A2 (en) 2012-01-30 2013-01-29 Multi-stage pump with transverse wall
PCT/GB2013/050188 WO2013114093A2 (en) 2012-01-30 2013-01-29 Pump
JP2014555306A JP2015509165A (en) 2012-01-30 2013-01-29 pump
CN201380007075.6A CN104126053A (en) 2012-01-30 2013-01-29 Multi-stage vacuum pump with transverse wall
US14/374,771 US20150037187A1 (en) 2012-01-30 2013-01-29 Pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1201555.8A GB2498807A (en) 2012-01-30 2012-01-30 Multi-stage vacuum pump with solid stator

Publications (2)

Publication Number Publication Date
GB201201555D0 true GB201201555D0 (en) 2012-03-14
GB2498807A GB2498807A (en) 2013-07-31

Family

ID=45876315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1201555.8A Withdrawn GB2498807A (en) 2012-01-30 2012-01-30 Multi-stage vacuum pump with solid stator

Country Status (8)

Country Link
US (1) US20150037187A1 (en)
EP (1) EP2809880A2 (en)
JP (1) JP2015509165A (en)
KR (1) KR20140119711A (en)
CN (1) CN104126053A (en)
GB (1) GB2498807A (en)
TW (1) TW201341663A (en)
WO (1) WO2013114093A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3065040B1 (en) * 2017-04-07 2019-06-21 Pfeiffer Vacuum PUMPING GROUP AND USE
GB2564381B (en) * 2017-06-12 2020-07-01 Edwards Ltd Twin shaft pumps and a method of pumping
FR3087504B1 (en) * 2018-10-17 2020-10-30 Pfeiffer Vacuum PROCESS FOR CONTROLLING THE TEMPERATURE OF A VACUUM PUMP, VACUUM PUMP AND ASSOCIATED INSTALLATION
GB201818896D0 (en) * 2018-11-20 2019-01-02 Gas Recovery And Recycle Ltd Gas recovery method
ES2951642T3 (en) * 2019-02-06 2023-10-24 Ateliers Busch S A Multistage pump body and multistage gas pump
FR3096096B1 (en) * 2019-05-13 2021-05-14 Pfeiffer Vacuum Dry primary vacuum pump
CN110500275B (en) * 2019-09-23 2021-03-16 兑通真空技术(上海)有限公司 Pump housing structure of triaxial multistage roots pump
GB2592030B (en) * 2020-02-12 2022-03-09 Edwards Ltd Multiple stage vacuum pump
FR3107933B1 (en) * 2020-03-04 2022-03-04 Pfeiffer Vacuum Technology AG Dry vacuum pump and method of manufacture
CN111664091B (en) * 2020-06-18 2022-05-10 北京通嘉宏瑞科技有限公司 One-piece rotor and its processing method, pump body assembly and vacuum pump
CN111644823A (en) * 2020-06-18 2020-09-11 北京通嘉鼎元科技有限公司 Rotor and its processing method, pump body assembly and its processing method, and vacuum pump
CN111664092B (en) * 2020-06-18 2022-05-10 北京通嘉宏瑞科技有限公司 Processing method of stator main body, pump body assembly and assembly method thereof, and vacuum pump
CN115992817A (en) * 2023-03-02 2023-04-21 山东省章丘鼓风机股份有限公司 Roots blower with three-stage segmented casing

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628014A (en) * 1950-08-17 1953-02-10 Max Raskin Multiple stage nonslip vacuum pump
JPS5521054Y2 (en) * 1975-04-11 1980-05-21
JPS5320106A (en) * 1976-08-09 1978-02-24 Tokico Ltd Positive displacement rotary machine
US4259045A (en) * 1978-11-24 1981-03-31 Kayabakogyokabushikikaisha Gear pump or motor units with sleeve coupling for shafts
GB8808608D0 (en) * 1988-04-12 1988-05-11 Boc Group Plc Dry pump with booster
JP2645574B2 (en) * 1988-10-07 1997-08-25 株式会社宇野澤組鐵工所 Multi-stage vacuum pump
GB9021780D0 (en) 1990-10-06 1990-11-21 Boc Group Plc Improvements in mechanical pumps
NO910827D0 (en) * 1991-03-01 1991-03-01 Sinvent As Sintef Gruppen MULTI-STEP GEAR MACHINE FOR COMPRESSION OR EXPANSION OF GAS.
JP3051515B2 (en) * 1991-09-05 2000-06-12 株式会社荏原製作所 Multistage vacuum pump cooling system
TW358145B (en) * 1998-06-25 1999-05-11 Ind Tech Res Inst Multi-level vacuum pump and the assembly method
US6123526A (en) * 1998-09-18 2000-09-26 Industrial Technology Research Institute Multistage pump and method for assembling the pump
US6318959B1 (en) * 1998-12-22 2001-11-20 Unozawa-Gumi Iron Works, Ltd. Multi-stage rotary vacuum pump used for high temperature gas
JP3691761B2 (en) * 2001-01-29 2005-09-07 一雄 稲葉 Movable airfoil rotation device
JP2004353576A (en) * 2003-05-29 2004-12-16 Aisin Seiki Co Ltd Vacuum pump
JP2006161616A (en) * 2004-12-03 2006-06-22 Hitachi Ltd Tandem trochoid pump and method of assembling the same
US20060228246A1 (en) * 2005-04-11 2006-10-12 Ritchie Engineering Company, Inc. Vacuum pump
GB0609306D0 (en) * 2006-05-11 2006-06-21 Boc Group Plc Vacuum pump
KR100773358B1 (en) * 2006-11-17 2007-11-05 삼성전자주식회사 Vacuum Pumps and Exhaust Systems with Fluid Nozzles
DE102009045574A1 (en) * 2009-10-12 2011-04-14 Robert Bosch Gmbh Two internal gear pump
GB2475254B (en) * 2009-11-11 2016-02-10 Edwards Ltd Vacuum pump

Also Published As

Publication number Publication date
JP2015509165A (en) 2015-03-26
WO2013114093A3 (en) 2014-01-30
CN104126053A (en) 2014-10-29
TW201341663A (en) 2013-10-16
EP2809880A2 (en) 2014-12-10
US20150037187A1 (en) 2015-02-05
GB2498807A (en) 2013-07-31
WO2013114093A2 (en) 2013-08-08
KR20140119711A (en) 2014-10-10

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)