GB201416031D0 - Multi-stage Pump Having Reverse Bypass Circuit - Google Patents

Multi-stage Pump Having Reverse Bypass Circuit

Info

Publication number
GB201416031D0
GB201416031D0 GB201416031A GB201416031A GB201416031D0 GB 201416031 D0 GB201416031 D0 GB 201416031D0 GB 201416031 A GB201416031 A GB 201416031A GB 201416031 A GB201416031 A GB 201416031A GB 201416031 D0 GB201416031 D0 GB 201416031D0
Authority
GB
United Kingdom
Prior art keywords
bypass circuit
stage pump
reverse bypass
reverse
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.)
Withdrawn
Application number
GB201416031A
Other versions
GB2520140A (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.)
Agilent Technologies Inc
Original Assignee
Agilent Technologies Inc
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 Agilent Technologies Inc filed Critical Agilent Technologies Inc
Publication of GB201416031D0 publication Critical patent/GB201416031D0/en
Publication of GB2520140A publication Critical patent/GB2520140A/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Withdrawn legal-status Critical Current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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B25/00—Multi-stage pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
GB1416031.1A 2013-09-13 2014-09-10 Multi-stage Pump Having Reverse Bypass Circuit Withdrawn GB2520140A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/026,550 US20150078927A1 (en) 2013-09-13 2013-09-13 Multi-Stage Pump Having Reverse Bypass Circuit

Publications (2)

Publication Number Publication Date
GB201416031D0 true GB201416031D0 (en) 2014-10-22
GB2520140A GB2520140A (en) 2015-05-13

Family

ID=51796500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1416031.1A Withdrawn GB2520140A (en) 2013-09-13 2014-09-10 Multi-stage Pump Having Reverse Bypass Circuit

Country Status (3)

Country Link
US (1) US20150078927A1 (en)
CN (1) CN104514719A (en)
GB (1) GB2520140A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107044417B (en) * 2017-04-18 2019-08-02 王旭明 A kind of compressed air cycle power device
CN107084134A (en) * 2017-06-26 2017-08-22 湖北维斯曼新能源科技有限公司 New two stages of compression scroll type air compressor
GB2572958C (en) 2018-04-16 2021-06-23 Edwards Ltd A multi-stage vacuum pump and a method of differentially pumping multiple vacuum chambers
US20210348607A1 (en) 2020-05-07 2021-11-11 Agilent Technologies, Inc. Air gap magnetic coupling with counterbalanced force
GB2600716B (en) * 2020-11-05 2023-05-03 Edwards Ltd Scroll pump
GB2606224B (en) * 2021-04-30 2024-01-31 Edwards Ltd Stator for a vacuum pump
CN113431781A (en) * 2021-08-05 2021-09-24 临海市谭氏真空设备有限公司 Dry type vortex vacuum pump
WO2023069119A1 (en) 2021-10-22 2023-04-27 Agilent Technologies, Inc. Air gap magnetic coupling with thermal isolation
DE102023114729A1 (en) 2022-06-07 2023-12-07 Agilent Technologies, Inc. - A Delaware Corporation - Fluid pump with integrated housing and outlet damper
US11686311B1 (en) 2022-06-07 2023-06-27 Agilent Technologies, Inc Drive shaft connector with counterweight and blades for cooling pump motor

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642384A (en) * 1969-11-19 1972-02-15 Henry Huse Multistage vacuum pumping system
JPS6248979A (en) * 1985-08-27 1987-03-03 Hitachi Ltd Scroll compressor
FR2647853A1 (en) * 1989-06-05 1990-12-07 Cit Alcatel DRY PRIMARY PUMP WITH TWO FLOORS
EP1101943B1 (en) * 1995-02-28 2003-12-03 Anest Iwata Corporation Control of a two-stage vacuum pump
US5616015A (en) * 1995-06-07 1997-04-01 Varian Associates, Inc. High displacement rate, scroll-type, fluid handling apparatus
MY119499A (en) * 1995-12-05 2005-06-30 Matsushita Electric Ind Co Ltd Scroll compressor having bypass valves
DE19800711A1 (en) * 1998-01-10 1999-07-29 Hermann Dipl Ing Lang Mostly dry working screw spindle vacuum pump
US6079952A (en) * 1998-02-02 2000-06-27 Ford Global Technologies, Inc. Continuous capacity control for a multi-stage compressor
US6068459A (en) * 1998-02-19 2000-05-30 Varian, Inc. Tip seal for scroll-type vacuum pump
US6129534A (en) * 1999-06-16 2000-10-10 The Boc Group Plc Vacuum pumps
DE10020162C2 (en) * 2000-04-25 2002-04-25 Hennecke Gmbh Method and device for producing a flowable reaction mixture that forms a solid or foam
KR100408154B1 (en) * 2001-08-14 2003-12-01 주식회사 우성진공 Roots vacuum pump
KR100547321B1 (en) * 2003-07-26 2006-01-26 엘지전자 주식회사 Scroll compressor with volume regulating capability
JP5438279B2 (en) * 2008-03-24 2014-03-12 アネスト岩田株式会社 Multistage vacuum pump and operation method thereof
GB2499217A (en) * 2012-02-08 2013-08-14 Edwards Ltd Vacuum pump with recirculation valve

Also Published As

Publication number Publication date
GB2520140A (en) 2015-05-13
US20150078927A1 (en) 2015-03-19
CN104514719A (en) 2015-04-15

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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)