GB201700998D0 - Multi-stage vacuum booster pump coupling - Google Patents

Multi-stage vacuum booster pump coupling

Info

Publication number
GB201700998D0
GB201700998D0 GBGB1700998.6A GB201700998A GB201700998D0 GB 201700998 D0 GB201700998 D0 GB 201700998D0 GB 201700998 A GB201700998 A GB 201700998A GB 201700998 D0 GB201700998 D0 GB 201700998D0
Authority
GB
United Kingdom
Prior art keywords
booster pump
vacuum booster
stage vacuum
pump coupling
coupling
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
GBGB1700998.6A
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 GBGB1700998.6A priority Critical patent/GB201700998D0/en
Publication of GB201700998D0 publication Critical patent/GB201700998D0/en
Priority to JP2019539190A priority patent/JP2020505550A/en
Priority to PCT/GB2018/050145 priority patent/WO2018134598A2/en
Priority to US16/478,357 priority patent/US20190368354A1/en
Priority to KR1020197021135A priority patent/KR20190105594A/en
Priority to CN201880007724.5A priority patent/CN110177947A/en
Priority to EP18734869.3A priority patent/EP3571407A2/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations 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
    • 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
    • F04C2210/00—Fluid
    • F04C2210/22—Fluid gaseous, i.e. compressible
    • 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
    • F04C2240/30—Casings or housings
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible

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)
GBGB1700998.6A 2017-01-20 2017-01-20 Multi-stage vacuum booster pump coupling Ceased GB201700998D0 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GBGB1700998.6A GB201700998D0 (en) 2017-01-20 2017-01-20 Multi-stage vacuum booster pump coupling
JP2019539190A JP2020505550A (en) 2017-01-20 2018-01-18 Multi-stage vacuum booster pump coupling unit
PCT/GB2018/050145 WO2018134598A2 (en) 2017-01-20 2018-01-18 Multi-stage vacuum booster pump coupling
US16/478,357 US20190368354A1 (en) 2017-01-20 2018-01-18 Multi-stage vacuum booster pump coupling
KR1020197021135A KR20190105594A (en) 2017-01-20 2018-01-18 Multistage vacuum booster pump coupling
CN201880007724.5A CN110177947A (en) 2017-01-20 2018-01-18 Multi-stage vacuum booster pump connector
EP18734869.3A EP3571407A2 (en) 2017-01-20 2018-01-18 Multi-stage vacuum booster pump coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1700998.6A GB201700998D0 (en) 2017-01-20 2017-01-20 Multi-stage vacuum booster pump coupling

Publications (1)

Publication Number Publication Date
GB201700998D0 true GB201700998D0 (en) 2017-03-08

Family

ID=58463139

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB1700998.6A Ceased GB201700998D0 (en) 2017-01-20 2017-01-20 Multi-stage vacuum booster pump coupling

Country Status (7)

Country Link
US (1) US20190368354A1 (en)
EP (1) EP3571407A2 (en)
JP (1) JP2020505550A (en)
KR (1) KR20190105594A (en)
CN (1) CN110177947A (en)
GB (1) GB201700998D0 (en)
WO (1) WO2018134598A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2608381A (en) * 2021-06-29 2023-01-04 Edwards Korea Ltd Stator assembly for a roots vacuum pump

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT177505B (en) * 1951-07-09 1954-02-10 Otto Siemen Double stage liquid ring air pump
US3198120A (en) * 1962-10-29 1965-08-03 Waukesha Foundry Co Multiple positive displacement pump
US4328824A (en) * 1979-12-10 1982-05-11 General Electric Company Flow divider with plural metering gears, unrestrained spacers there-between and lubricated end roller bearings
FR2647853A1 (en) * 1989-06-05 1990-12-07 Cit Alcatel DRY PRIMARY PUMP WITH TWO FLOORS
US6123526A (en) * 1998-09-18 2000-09-26 Industrial Technology Research Institute Multistage pump and method for assembling the pump
JP2000205148A (en) * 1999-01-11 2000-07-25 Toyota Autom Loom Works Ltd Multistage route pump and manufacture of rotor housing of multistage route pump
CN2660175Y (en) * 2003-11-17 2004-12-01 财团法人工业技术研究院 Multi-stage vacuum pump
JP2005155540A (en) * 2003-11-27 2005-06-16 Aisin Seiki Co Ltd Multistage dry-sealed vacuum pump
JP3921551B1 (en) * 2006-02-17 2007-05-30 株式会社四葉機械製作所 Multi-stage roots compressor
CN201396281Y (en) * 2009-03-19 2010-02-03 孙成忠 Multistage three-blade Roots vacuum pump
JP2011202603A (en) * 2010-03-26 2011-10-13 Toyota Industries Corp Fluid pump device

Also Published As

Publication number Publication date
WO2018134598A2 (en) 2018-07-26
US20190368354A1 (en) 2019-12-05
CN110177947A (en) 2019-08-27
EP3571407A2 (en) 2019-11-27
KR20190105594A (en) 2019-09-17
JP2020505550A (en) 2020-02-20
WO2018134598A3 (en) 2018-10-04

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)