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GB809443A - Improvements in or relating to rotary high-vacuum pumps - Google Patents

Improvements in or relating to rotary high-vacuum pumps

Info

Publication number
GB809443A
GB809443A GB5872/55A GB587255A GB809443A GB 809443 A GB809443 A GB 809443A GB 5872/55 A GB5872/55 A GB 5872/55A GB 587255 A GB587255 A GB 587255A GB 809443 A GB809443 A GB 809443A
Authority
GB
United Kingdom
Prior art keywords
chamber
pump
disposed
motor
feb
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.)
Expired
Application number
GB5872/55A
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.)
WC Heraus GmbH and Co KG
Original Assignee
WC Heraus GmbH and Co KG
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 WC Heraus GmbH and Co KG filed Critical WC Heraus GmbH and Co KG
Publication of GB809443A publication Critical patent/GB809443A/en
Expired 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
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/0085—Prime movers
    • 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
    • F04C2240/40—Electric motor
    • F04C2240/402—Plurality of electronically synchronised motors

Landscapes

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

Abstract

809,443. Rotary pumps; stuffing-box substitutes. HERAEUS G.m.b.H., W. C. Feb. 28, 1955 [Feb. 27, 1954; April 1, 1954; May 10, 1954; Sept. 2, 1954], No. 5872/55. Classes 110 (2) and 122 (5). A Roots pump, Fig. 1, is provided with a twowalled casing defining chambers 3a, 3b together with a chamber 3, if so desired, adapted to be evacuated. An electric motor 5, 6 having a cooling jacket 12 and fins 13 is disposed in the chamber 3a whilst a pump 39 for feeding lubricant to the chamber 14 in the motor and for feeding lubricant to the bearings through ducts 40 is disposed in the chamber 3b. The hollow rotors 37a, 37b are geared together at one or both ends. In a modification, Figs. 3 and 4 (not shown), the pump is vertically disposed and a motor is provided for each rotor shaft. In a final modification, Fig. 8, a low-pressure stage pump 85 is mounted in parallel with a preliminary stage pump 84 in a common casing 78. Specifications 662,121 and 809,445 are referred to.
GB5872/55A 1954-02-27 1955-02-28 Improvements in or relating to rotary high-vacuum pumps Expired GB809443A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE809443X 1954-02-27

Publications (1)

Publication Number Publication Date
GB809443A true GB809443A (en) 1959-02-25

Family

ID=6723319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5872/55A Expired GB809443A (en) 1954-02-27 1955-02-28 Improvements in or relating to rotary high-vacuum pumps

Country Status (1)

Country Link
GB (1) GB809443A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243816B (en) * 1959-11-04 1967-07-06 Leybolds Nachfolger E Multi-stage rotary lobe vacuum pump of the Roots type
US3438570A (en) * 1966-08-20 1969-04-15 Leybold Heraeus Gmbh & Co Kg Two stage vacuum pump
EP0674106A1 (en) * 1994-03-16 1995-09-27 Chemitec Co., Ltd. A multistage vacuum pump
GB2299831A (en) * 1995-04-12 1996-10-16 Bosch Gmbh Robert Positive displacement fuel delivery pump combined with vacuum pump
GB2317649A (en) * 1995-04-12 1998-04-01 Bosch Gmbh Robert Positive displacement fuel delivery pump combined with vacuum pump
WO2007088103A1 (en) * 2006-02-01 2007-08-09 Oerlikon Leybold Vacuum Gmbh Roots vacuum pump
FR2921444A1 (en) * 2007-09-26 2009-03-27 Alcatel Lucent Sas VACUUM PUMP WITH TWO HELICOIDAL ROTORS.
WO2010015501A1 (en) * 2008-08-06 2010-02-11 Oerlikon Leybold Vacuum Gmbh Use of a rolling-element bearing for bearing rotating components in vacuum devices and vacuum device
CN102444564A (en) * 2011-11-21 2012-05-09 浙江飞越机电有限公司 One-piece vacuum pump
EP3674551A1 (en) * 2018-12-28 2020-07-01 Ebara Corporation Vacuum pump apparatus

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243816B (en) * 1959-11-04 1967-07-06 Leybolds Nachfolger E Multi-stage rotary lobe vacuum pump of the Roots type
US3438570A (en) * 1966-08-20 1969-04-15 Leybold Heraeus Gmbh & Co Kg Two stage vacuum pump
EP0674106A1 (en) * 1994-03-16 1995-09-27 Chemitec Co., Ltd. A multistage vacuum pump
GB2299831A (en) * 1995-04-12 1996-10-16 Bosch Gmbh Robert Positive displacement fuel delivery pump combined with vacuum pump
GB2317649A (en) * 1995-04-12 1998-04-01 Bosch Gmbh Robert Positive displacement fuel delivery pump combined with vacuum pump
GB2317649B (en) * 1995-04-12 1998-10-14 Bosch Gmbh Robert Device for the delivery of fuel from a storage tank to an internal combustion engine of a motor vehicle
GB2299831B (en) * 1995-04-12 1998-10-14 Bosch Gmbh Robert Device for the delivery of fuel from a storage tank to an internal combustion engine of a motor vehicle
WO2007088103A1 (en) * 2006-02-01 2007-08-09 Oerlikon Leybold Vacuum Gmbh Roots vacuum pump
WO2009040412A1 (en) * 2007-09-26 2009-04-02 Alcatel Lucent Vacuum pump with two helical rotors
EP2042739A1 (en) * 2007-09-26 2009-04-01 Alcatel Lucent Vacuum pump with two helical rotors
FR2921444A1 (en) * 2007-09-26 2009-03-27 Alcatel Lucent Sas VACUUM PUMP WITH TWO HELICOIDAL ROTORS.
WO2010015501A1 (en) * 2008-08-06 2010-02-11 Oerlikon Leybold Vacuum Gmbh Use of a rolling-element bearing for bearing rotating components in vacuum devices and vacuum device
CN102105653A (en) * 2008-08-06 2011-06-22 厄利孔莱博尔德真空技术有限责任公司 Use of a rolling-element bearing for bearing rotating components in vacuum devices and vacuum device
CN102105653B (en) * 2008-08-06 2013-09-04 厄利孔莱博尔德真空技术有限责任公司 Use of a rolling-element bearing for bearing rotating components in vacuum devices and vacuum device
CN102444564A (en) * 2011-11-21 2012-05-09 浙江飞越机电有限公司 One-piece vacuum pump
EP3674551A1 (en) * 2018-12-28 2020-07-01 Ebara Corporation Vacuum pump apparatus
JP2020106005A (en) * 2018-12-28 2020-07-09 株式会社荏原製作所 Vacuum pump device
CN111502954A (en) * 2018-12-28 2020-08-07 株式会社荏原制作所 Vacuum pump device
JP2022128522A (en) * 2018-12-28 2022-09-01 株式会社荏原製作所 Vacuum pump device
TWI826620B (en) * 2018-12-28 2023-12-21 日商荏原製作所股份有限公司 Vacuum pump apparatus

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