JP2007502932A - ドライポンプの排気脈動の減少 - Google Patents

ドライポンプの排気脈動の減少 Download PDF

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Publication number
JP2007502932A
JP2007502932A JP2006523664A JP2006523664A JP2007502932A JP 2007502932 A JP2007502932 A JP 2007502932A JP 2006523664 A JP2006523664 A JP 2006523664A JP 2006523664 A JP2006523664 A JP 2006523664A JP 2007502932 A JP2007502932 A JP 2007502932A
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JP
Japan
Prior art keywords
rotor element
vacuum pump
rotor
protrusions
shaft
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
JP2006523664A
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English (en)
Japanese (ja)
Inventor
グレイム ハントレー
Original Assignee
ザ ビーオーシー グループ ピーエルシー
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 ザ ビーオーシー グループ ピーエルシー filed Critical ザ ビーオーシー グループ ピーエルシー
Publication of JP2007502932A publication Critical patent/JP2007502932A/ja
Ceased legal-status Critical Current

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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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F04C29/0035—Equalization of pressure pulses
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
JP2006523664A 2003-08-18 2004-08-02 ドライポンプの排気脈動の減少 Ceased JP2007502932A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0319344A GB0319344D0 (en) 2003-08-18 2003-08-18 Reducing exhaust pulsation in dry pumps
PCT/GB2004/003316 WO2005019652A1 (en) 2003-08-18 2004-08-02 Reducing exhaust pulsation in dry pumps

Publications (1)

Publication Number Publication Date
JP2007502932A true JP2007502932A (ja) 2007-02-15

Family

ID=28052677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006523664A Ceased JP2007502932A (ja) 2003-08-18 2004-08-02 ドライポンプの排気脈動の減少

Country Status (5)

Country Link
EP (1) EP1656504A1 (zh)
JP (1) JP2007502932A (zh)
GB (1) GB0319344D0 (zh)
TW (1) TW200513594A (zh)
WO (1) WO2005019652A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011039812A1 (ja) * 2009-09-30 2011-04-07 樫山工業株式会社 容積移送型ドライ真空ポンプ
US9751479B2 (en) 2015-02-24 2017-09-05 Toyota Jidosha Kabushiki Kaisha Vehicle bumper reinforcement structure

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0524649D0 (en) * 2005-12-02 2006-01-11 Boc Group Plc Multi-stage roots vacuum pump
EP2012014A1 (en) * 2007-07-06 2009-01-07 Yamada Manufacturing Co., Ltd. Internal gear pump with non-equal teeth pitch spacings
JP4404115B2 (ja) * 2007-08-13 2010-01-27 ダイキン工業株式会社 スクリュー圧縮機
US8888474B2 (en) 2011-09-08 2014-11-18 Baker Hughes Incorporated Downhole motors and pumps with asymmetric lobes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191223348A (en) * 1912-01-26 1913-03-13 Aleksander Jedrusik Improvements in and relating to Root's Blowers and the like.
GB953799A (en) * 1959-08-11 1964-04-02 Heraeus Gmbh W C Improvements in or relating to mechanical high vacuum pumps of the roots blower type
JPS6477782A (en) * 1987-09-19 1989-03-23 Ebara Corp Rotary machine of roots type
GB9021780D0 (en) * 1990-10-06 1990-11-21 Boc Group Plc Improvements in mechanical pumps
US5454701A (en) * 1994-06-02 1995-10-03 Chen; Chia-Hsing Screw compressor with rotors having hyper profile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011039812A1 (ja) * 2009-09-30 2011-04-07 樫山工業株式会社 容積移送型ドライ真空ポンプ
US9751479B2 (en) 2015-02-24 2017-09-05 Toyota Jidosha Kabushiki Kaisha Vehicle bumper reinforcement structure

Also Published As

Publication number Publication date
EP1656504A1 (en) 2006-05-17
WO2005019652A1 (en) 2005-03-03
TW200513594A (en) 2005-04-16
GB0319344D0 (en) 2003-09-17

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