WO2016034485A3 - Claw pump - Google Patents

Claw pump Download PDF

Info

Publication number
WO2016034485A3
WO2016034485A3 PCT/EP2015/069637 EP2015069637W WO2016034485A3 WO 2016034485 A3 WO2016034485 A3 WO 2016034485A3 EP 2015069637 W EP2015069637 W EP 2015069637W WO 2016034485 A3 WO2016034485 A3 WO 2016034485A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotor shafts
rotors
pump housing
pump
rotor
Prior art date
Application number
PCT/EP2015/069637
Other languages
German (de)
French (fr)
Other versions
WO2016034485A2 (en
Inventor
Peter Birch
Clive Tunna
Original Assignee
Oerlikon Leybold Vacuum Gmbh
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 Oerlikon Leybold Vacuum Gmbh filed Critical Oerlikon Leybold Vacuum Gmbh
Priority to EP15759706.3A priority Critical patent/EP3189236A2/en
Priority to KR1020177009058A priority patent/KR20170053665A/en
Priority to CN201580047420.8A priority patent/CN106662107B/en
Priority to JP2017512733A priority patent/JP6643323B2/en
Publication of WO2016034485A2 publication Critical patent/WO2016034485A2/en
Publication of WO2016034485A3 publication Critical patent/WO2016034485A3/en

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
    • 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
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

Disclosed is a claw pump having two rotor shafts (14) which each support a plurality of rotors (10, 12). In a preferred embodiment, the rotor shafts (14) form a single piece together with the associated rotors (10, 12). The rotor shafts (14) are arranged together with the rotors (10, 12) in a pump housing (16, 18), wherein a plurality of pump stages are formed by the pump housing and the corresponding rotor pairs (10, 12). In order to simplify assembly, the rotor shafts (14) form a single piece together with the associated rotors (10, 12) and the pump housing is formed in two parts. In a preferred embodiment, a separation plane (24) of the pump housing (16, 18) runs transversely across the rotor shafts (14).
PCT/EP2015/069637 2014-09-05 2015-08-27 Claw pump WO2016034485A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP15759706.3A EP3189236A2 (en) 2014-09-05 2015-08-27 Claw pump
KR1020177009058A KR20170053665A (en) 2014-09-05 2015-08-27 Claw-type pump
CN201580047420.8A CN106662107B (en) 2014-09-05 2015-08-27 Claw type pump
JP2017512733A JP6643323B2 (en) 2014-09-05 2015-08-27 Claw pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202014007117.9 2014-09-05
DE202014007117.9U DE202014007117U1 (en) 2014-09-05 2014-09-05 claw pump

Publications (2)

Publication Number Publication Date
WO2016034485A2 WO2016034485A2 (en) 2016-03-10
WO2016034485A3 true WO2016034485A3 (en) 2016-05-06

Family

ID=54064308

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/069637 WO2016034485A2 (en) 2014-09-05 2015-08-27 Claw pump

Country Status (7)

Country Link
EP (1) EP3189236A2 (en)
JP (2) JP6643323B2 (en)
KR (1) KR20170053665A (en)
CN (1) CN106662107B (en)
DE (1) DE202014007117U1 (en)
TW (1) TWI626379B (en)
WO (1) WO2016034485A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2558954B (en) 2017-01-24 2019-10-30 Edwards Ltd Pump sealing
CN107448390B (en) * 2017-09-14 2023-10-10 东莞市大路通真空设备制造有限公司 Long-life vacuum pump
DE102018210430A1 (en) * 2018-06-26 2020-01-02 Leybold Gmbh Displacer, rotor and device of a vacuum pump and method for producing a displacer and a rotor of a vacuum pump
DE102019103577A1 (en) 2019-02-13 2020-08-13 Gebr. Becker Gmbh Rotary lobe pump
CN110332111B (en) * 2019-06-21 2021-08-06 宁波邦威泵业有限公司 Impeller and rotor pump thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207190A (en) * 1987-07-18 1989-01-25 Boc Group Plc Pump drive arrangement
EP0480629A1 (en) * 1990-10-06 1992-04-15 The BOC Group plc Improvements in mechanical pumps
DE60123637T2 (en) * 2000-08-21 2007-08-16 Alcatel Lucent SEALING FOR A VACUUM PUMP
EP2221482A1 (en) * 2007-11-14 2010-08-25 Ulvac, Inc. Multi-stage dry pump
GB2508405A (en) * 2012-11-30 2014-06-04 Edwards Ltd Vacuum pump sealing system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT140808B (en) * 1933-06-07 1935-02-25 Franz Dr Ing Heinl Machine with rotating pistons.
DE3775553D1 (en) * 1987-05-15 1992-02-06 Leybold Ag TWO SHAFT PUMP.
EP0370117B1 (en) 1988-10-24 1994-01-12 Leybold Aktiengesellschaft Two-shaft vacuum pump and method of operation
KR100700415B1 (en) 1998-09-19 2007-03-27 엘지.필립스 엘시디 주식회사 Active Matrix Liquid Crystal Display
JP2000170679A (en) * 1998-12-04 2000-06-20 Toyota Autom Loom Works Ltd Multi-stage roots pump and multi-stage 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
JP2003097475A (en) * 2001-09-21 2003-04-03 Nsk Ltd Bearing for dry vacuum pump
JP2004211556A (en) * 2002-12-26 2004-07-29 Toyota Industries Corp Vacuum pump
JP2007092625A (en) * 2005-09-28 2007-04-12 Aisin Seiki Co Ltd Rotary body provided with rotary shaft and rotor, and method of manufacturing the same
GB2435675B (en) 2006-03-02 2011-02-09 Boc Group Plc Rotor assembly
EP2180188B1 (en) * 2008-10-24 2016-09-07 Edwards Limited Improvements in and relating to Roots pumps
JP5284940B2 (en) * 2009-12-24 2013-09-11 アネスト岩田株式会社 Multistage vacuum pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207190A (en) * 1987-07-18 1989-01-25 Boc Group Plc Pump drive arrangement
EP0480629A1 (en) * 1990-10-06 1992-04-15 The BOC Group plc Improvements in mechanical pumps
DE60123637T2 (en) * 2000-08-21 2007-08-16 Alcatel Lucent SEALING FOR A VACUUM PUMP
EP2221482A1 (en) * 2007-11-14 2010-08-25 Ulvac, Inc. Multi-stage dry pump
GB2508405A (en) * 2012-11-30 2014-06-04 Edwards Ltd Vacuum pump sealing system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3189236A2 *

Also Published As

Publication number Publication date
WO2016034485A2 (en) 2016-03-10
TWI626379B (en) 2018-06-11
CN106662107B (en) 2020-01-10
JP2020056409A (en) 2020-04-09
KR20170053665A (en) 2017-05-16
JP2017527735A (en) 2017-09-21
EP3189236A2 (en) 2017-07-12
CN106662107A (en) 2017-05-10
TW201621167A (en) 2016-06-16
JP6643323B2 (en) 2020-02-12
DE202014007117U1 (en) 2015-12-09

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