GB2528450A - Vacuum pump - Google Patents

Vacuum pump Download PDF

Info

Publication number
GB2528450A
GB2528450A GB1412924.1A GB201412924A GB2528450A GB 2528450 A GB2528450 A GB 2528450A GB 201412924 A GB201412924 A GB 201412924A GB 2528450 A GB2528450 A GB 2528450A
Authority
GB
United Kingdom
Prior art keywords
longitudinal
annular
components
sealing members
shell
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Withdrawn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
GB1412924.1A
Other languages
English (en)
Other versions
GB201412924D0 (en
Inventor
Alan Ernest Kinnaird Holbrook
Nomikos Trikoilis
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 GB1412924.1A priority Critical patent/GB2528450A/en
Publication of GB201412924D0 publication Critical patent/GB201412924D0/en
Priority to EP15741278.4A priority patent/EP3172406B1/de
Priority to PCT/GB2015/052068 priority patent/WO2016012758A1/en
Priority to US15/326,658 priority patent/US20170204858A1/en
Publication of GB2528450A publication Critical patent/GB2528450A/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Withdrawn legal-status Critical Current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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/02—Liquid sealing for high-vacuum pumps or for compressors
    • 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
    • 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
    • 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
    • F04C18/086—Carter
    • 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
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/001—Radial sealings for working fluid
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/005—Axial sealings for working fluid
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • 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
    • 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
    • F04C2240/10—Stators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
GB1412924.1A 2014-07-21 2014-07-21 Vacuum pump Withdrawn GB2528450A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1412924.1A GB2528450A (en) 2014-07-21 2014-07-21 Vacuum pump
EP15741278.4A EP3172406B1 (de) 2014-07-21 2015-07-17 Vakuumpumpe
PCT/GB2015/052068 WO2016012758A1 (en) 2014-07-21 2015-07-17 Vacuum pump
US15/326,658 US20170204858A1 (en) 2014-07-21 2015-07-17 Vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1412924.1A GB2528450A (en) 2014-07-21 2014-07-21 Vacuum pump

Publications (2)

Publication Number Publication Date
GB201412924D0 GB201412924D0 (en) 2014-09-03
GB2528450A true GB2528450A (en) 2016-01-27

Family

ID=51494905

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1412924.1A Withdrawn GB2528450A (en) 2014-07-21 2014-07-21 Vacuum pump

Country Status (4)

Country Link
US (1) US20170204858A1 (de)
EP (1) EP3172406B1 (de)
GB (1) GB2528450A (de)
WO (1) WO2016012758A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018115815A1 (en) * 2016-12-19 2018-06-28 Edwards Limited Pump sealing
CN110199088A (zh) * 2017-01-25 2019-09-03 爱德华兹有限公司 带有偏置定子密封件的真空泵及制造其的方法
WO2021008834A1 (fr) * 2019-07-17 2021-01-21 Pfeiffer Vacuum Groupe de pompage
WO2021079088A1 (en) * 2019-10-23 2021-04-29 Edwards Limited Pump apparatus
FR3112174A1 (fr) * 2021-02-24 2022-01-07 Pfeiffer Vacuum Pompe à vide sèche

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3107933B1 (fr) * 2020-03-04 2022-03-04 Pfeiffer Vacuum Tech Ag Pompe à vide sèche et procédé de fabrication
GB2622602A (en) * 2022-09-22 2024-03-27 Edwards Ltd Sealing gasket

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005214A (en) * 1996-06-26 1999-12-21 Cramer; Margaret D. Method of making wear resistant material lined housings
US20020155014A1 (en) * 2000-08-21 2002-10-24 Pascal Durand Pressure seal for a vacuum pump
GB2489248A (en) * 2011-03-22 2012-09-26 Edwards Ltd Vacuum pump with stator joint seals
GB2508405A (en) * 2012-11-30 2014-06-04 Edwards Ltd Vacuum pump sealing system
GB2512095A (en) * 2013-03-20 2014-09-24 Edwards Ltd Pump

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0719394D0 (en) * 2007-10-04 2007-11-14 Edwards Ltd A multi stage clam shell vacuum pump
US8182252B2 (en) * 2007-10-30 2012-05-22 Moyno, Inc. Progressing cavity pump with split stator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005214A (en) * 1996-06-26 1999-12-21 Cramer; Margaret D. Method of making wear resistant material lined housings
US20020155014A1 (en) * 2000-08-21 2002-10-24 Pascal Durand Pressure seal for a vacuum pump
GB2489248A (en) * 2011-03-22 2012-09-26 Edwards Ltd Vacuum pump with stator joint seals
GB2508405A (en) * 2012-11-30 2014-06-04 Edwards Ltd Vacuum pump sealing system
GB2512095A (en) * 2013-03-20 2014-09-24 Edwards Ltd Pump

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11421689B2 (en) 2016-12-19 2022-08-23 Edwards Limited Pump assembly with sealing protrusion on stator bore portion
KR20190098144A (ko) * 2016-12-19 2019-08-21 에드워즈 리미티드 펌프 밀봉
JP2020502409A (ja) * 2016-12-19 2020-01-23 エドワーズ リミテッド ポンプシーリング
WO2018115815A1 (en) * 2016-12-19 2018-06-28 Edwards Limited Pump sealing
KR102451435B1 (ko) * 2016-12-19 2022-10-05 에드워즈 리미티드 펌프 밀봉
CN110199088A (zh) * 2017-01-25 2019-09-03 爱德华兹有限公司 带有偏置定子密封件的真空泵及制造其的方法
CN110199088B (zh) * 2017-01-25 2022-01-04 爱德华兹有限公司 带有偏置定子密封件的真空泵及制造其的方法
WO2021008834A1 (fr) * 2019-07-17 2021-01-21 Pfeiffer Vacuum Groupe de pompage
FR3098869A1 (fr) * 2019-07-17 2021-01-22 Pfeiffer Vacuum Groupe de pompage
US11815096B2 (en) 2019-07-17 2023-11-14 Pfeiffer Vacuum Pump unit
WO2021079088A1 (en) * 2019-10-23 2021-04-29 Edwards Limited Pump apparatus
CN114793443A (zh) * 2019-10-23 2022-07-26 爱德华兹有限公司 泵设备
WO2022179819A1 (en) * 2021-02-24 2022-09-01 Pfeiffer Vacuum Dry vacuum pump
FR3112174A1 (fr) * 2021-02-24 2022-01-07 Pfeiffer Vacuum Pompe à vide sèche

Also Published As

Publication number Publication date
WO2016012758A1 (en) 2016-01-28
US20170204858A1 (en) 2017-07-20
GB201412924D0 (en) 2014-09-03
EP3172406A1 (de) 2017-05-31
EP3172406B1 (de) 2018-09-12

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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)