GB2111126A - Rotary positive-displacement fluid-machines - Google Patents

Rotary positive-displacement fluid-machines Download PDF

Info

Publication number
GB2111126A
GB2111126A GB08137164A GB8137164A GB2111126A GB 2111126 A GB2111126 A GB 2111126A GB 08137164 A GB08137164 A GB 08137164A GB 8137164 A GB8137164 A GB 8137164A GB 2111126 A GB2111126 A GB 2111126A
Authority
GB
United Kingdom
Prior art keywords
rotors
location
pumping chamber
mechanical pump
outlet
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Withdrawn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
GB08137164A
Other languages
English (en)
Inventor
Henryk Wycliffe
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.)
BOC Group Ltd
BOC Ltd Great Britain
Original Assignee
BOC Ltd Great Britain
British Oxigen 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 BOC Ltd Great Britain, British Oxigen Ltd filed Critical BOC Ltd Great Britain
Priority to GB08137164A priority Critical patent/GB2111126A/en
Priority to DE19823244099 priority patent/DE3244099A1/de
Priority to JP21536282A priority patent/JPS6020595B2/ja
Priority to FR8220574A priority patent/FR2517755A1/fr
Publication of GB2111126A publication Critical patent/GB2111126A/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Withdrawn legal-status Critical Current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
    • 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-Type Compressors (AREA)
GB08137164A 1981-12-09 1981-12-09 Rotary positive-displacement fluid-machines Withdrawn GB2111126A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB08137164A GB2111126A (en) 1981-12-09 1981-12-09 Rotary positive-displacement fluid-machines
DE19823244099 DE3244099A1 (de) 1981-12-09 1982-11-29 Mechanische pumpe
JP21536282A JPS6020595B2 (ja) 1981-12-09 1982-12-08 機械ポンプ
FR8220574A FR2517755A1 (fr) 1981-12-09 1982-12-08 Pompe mecanique perfectionnee a vide pousse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08137164A GB2111126A (en) 1981-12-09 1981-12-09 Rotary positive-displacement fluid-machines

Publications (1)

Publication Number Publication Date
GB2111126A true GB2111126A (en) 1983-06-29

Family

ID=10526496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08137164A Withdrawn GB2111126A (en) 1981-12-09 1981-12-09 Rotary positive-displacement fluid-machines

Country Status (4)

Country Link
JP (1) JPS6020595B2 (enrdf_load_stackoverflow)
DE (1) DE3244099A1 (enrdf_load_stackoverflow)
FR (1) FR2517755A1 (enrdf_load_stackoverflow)
GB (1) GB2111126A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3617889A1 (de) * 1985-05-30 1986-12-04 The Boc Group Plc, Windlesham, Surrey Mechanische pumpe
GB2185288A (en) * 1986-01-11 1987-07-15 Fleming Thermodynamics Ltd Screw type compression and expansion machine
US5046934A (en) * 1988-10-24 1991-09-10 Leybold Aktiengesellschaft Twin shaft vacuum pump with purge gas inlet
US5049050A (en) * 1988-10-24 1991-09-17 Leybold Aktiengesellschaft Method for operating a twin shaft vacuum pump according to the Northey principle and a twin shaft vacuum pump suitable for the implementation of the method
EP0594461A1 (en) * 1992-10-22 1994-04-27 The BOC Group plc Vacuum pumps
EP0793021A1 (en) * 1996-03-01 1997-09-03 The BOC Group plc Vacuum pumps
WO2005019653A1 (en) * 2003-08-18 2005-03-03 The Boc Group Plc Low pulsation booster pump
CN103104491A (zh) * 2011-11-11 2013-05-15 中国科学院沈阳科学仪器研制中心有限公司 一种罗茨和爪式转子组合多级干式真空泵
US9476423B2 (en) 2011-08-17 2016-10-25 Oerlikon Leybold Vaccum Gmbh Roots pump connection channels separating adjacent pump stages
DE102018203992A1 (de) * 2018-03-15 2019-09-19 Gardner Denver Schopfheim Gmbh Drehkolbenmaschine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097395U (ja) * 1983-12-12 1985-07-03 大亜真空技研株式会社 ドライ真空ポンプ
DE3405509A1 (de) * 1983-12-20 1985-06-27 Herold & Co GmbH, 8586 Gefrees Verdraengerpumpe
DE3413892A1 (de) * 1984-02-24 1985-09-05 Multimatic Maschinen GmbH & Co, 4520 Melle Vorrichtung zum destillieren verschmutzter loesemittel oder dergleichen
JPS6221494U (enrdf_load_stackoverflow) * 1985-07-23 1987-02-09
JPS63303185A (ja) * 1987-05-30 1988-12-09 Yoshimitsu Saito 人造レザ−類の柔軟加工及び皺付加工法とその機械装置
US4943215A (en) * 1988-02-29 1990-07-24 Leybold Aktiengesellschaft Multistage vacuum pump with bore for fouling removal
EP0692635B1 (de) 1990-03-27 1999-09-08 Balzers und Leybold Deutschland Holding Aktiengesellschaft Mehrstufige trockenverdichtende Vakuumpumpe und Verfahren zu ihrem Betrieb

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB596064A (en) * 1945-07-17 1947-12-24 Stothert & Pitt Ltd Improvements in or relating to rotary pumps
DE538256C (de) * 1930-02-25 1931-11-12 Griffith Thomas Mehrfachdrehkolbenpumpe (Verdichter)
GB479199A (en) * 1936-08-01 1938-02-01 Edward Dodson Improvements in or connected with rotary pumps
FR856614A (fr) * 1938-06-20 1940-07-29 Moteur à combustion interne rotatif
GB735823A (en) * 1952-08-23 1955-08-31 Frank Berry Improvements in or relating to a rotary fluid power device such as a motor or pump
GB818691A (en) * 1957-05-20 1959-08-19 Lacy Hulbert & Company Improvements in rotary air pumps
DE1287729B (enrdf_load_stackoverflow) * 1961-10-19 1969-01-23
GB1248032A (en) * 1967-09-21 1971-09-29 Edwards High Vacuum Int Ltd Rotary mechanical vacuum pumps of the intermeshing screw type
GB1284552A (en) * 1969-08-08 1972-08-09 Arthur E Brown Improvements in rotary-positive displacement fluid machines
US3922117A (en) * 1972-11-10 1975-11-25 Calspan Corp Two-stage roots type compressor
GB2088957B (en) * 1980-12-05 1984-12-12 Boc Ltd Rotary positive-displacement fluidmachines

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582741A1 (fr) * 1985-05-30 1986-12-05 Boc Group Plc Pompe mecanique a plusieurs etages comportant des conduits centraux pour empecher les fuites de gaz
DE3617889A1 (de) * 1985-05-30 1986-12-04 The Boc Group Plc, Windlesham, Surrey Mechanische pumpe
GB2185288A (en) * 1986-01-11 1987-07-15 Fleming Thermodynamics Ltd Screw type compression and expansion machine
US5046934A (en) * 1988-10-24 1991-09-10 Leybold Aktiengesellschaft Twin shaft vacuum pump with purge gas inlet
US5049050A (en) * 1988-10-24 1991-09-17 Leybold Aktiengesellschaft Method for operating a twin shaft vacuum pump according to the Northey principle and a twin shaft vacuum pump suitable for the implementation of the method
EP0594461A1 (en) * 1992-10-22 1994-04-27 The BOC Group plc Vacuum pumps
EP0793021A1 (en) * 1996-03-01 1997-09-03 The BOC Group plc Vacuum pumps
WO2005019653A1 (en) * 2003-08-18 2005-03-03 The Boc Group Plc Low pulsation booster pump
US9476423B2 (en) 2011-08-17 2016-10-25 Oerlikon Leybold Vaccum Gmbh Roots pump connection channels separating adjacent pump stages
CN103104491A (zh) * 2011-11-11 2013-05-15 中国科学院沈阳科学仪器研制中心有限公司 一种罗茨和爪式转子组合多级干式真空泵
DE102018203992A1 (de) * 2018-03-15 2019-09-19 Gardner Denver Schopfheim Gmbh Drehkolbenmaschine
WO2019175267A1 (de) * 2018-03-15 2019-09-19 Gardner Denver Schopfheim Gmbh Drehkolbenmaschine
US11441563B2 (en) 2018-03-15 2022-09-13 Gardner Denver Schopfheim Gmbh Rotary piston compressor/pump/blower with a ventilation channel
DE202019005982U1 (de) 2018-03-15 2023-11-06 Gardner Denver Schopfheim Gmbh Drehkolbenmaschine
US11879458B2 (en) 2018-03-15 2024-01-23 Gardner Denver Schopfheim Gmbh Rotary piston compressor/pump/blower with a ventilation channel
US12196204B2 (en) 2018-03-15 2025-01-14 Gardner Denver Schopfheim Gmbh Rotary piston compressor/pump/blower with a ventilation channel

Also Published As

Publication number Publication date
FR2517755A1 (fr) 1983-06-10
JPS58106191A (ja) 1983-06-24
DE3244099A1 (de) 1983-06-23
JPS6020595B2 (ja) 1985-05-22
DE3244099C2 (enrdf_load_stackoverflow) 1987-11-05

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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)