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GB332879A - Improvements in or relating to rotary vacuum pumps - Google Patents

Improvements in or relating to rotary vacuum pumps

Info

Publication number
GB332879A
GB332879A GB39797/29A GB3979729A GB332879A GB 332879 A GB332879 A GB 332879A GB 39797/29 A GB39797/29 A GB 39797/29A GB 3979729 A GB3979729 A GB 3979729A GB 332879 A GB332879 A GB 332879A
Authority
GB
United Kingdom
Prior art keywords
disc
shaft
relating
vacuum pumps
rotary vacuum
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
GB39797/29A
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.)
KARL MANNE GEORG SIEGBAHN
Original Assignee
KARL MANNE GEORG SIEGBAHN
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 KARL MANNE GEORG SIEGBAHN filed Critical KARL MANNE GEORG SIEGBAHN
Publication of GB332879A publication Critical patent/GB332879A/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/168—Pumps specially adapted to produce a vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

332,879. Siegbahn, K. M. G. Jan. 4, 1929, [Convention date]. Fluid-friction apparatus.-A vacuum pump comprises a rotary disc 1 which is disposed between two walls 7, 8, each of which is provided with a spiral groove 9 communicating with the intake 10. The grooves 9 gradually decrease in cross section in passing from the circumference to the centre, the decrease being more rapid at the circumference. The disc 1 is mounted on bearings 3, 4 and is driven by a pulley 12 secured to a shaft 13 which is mounted in a bearing 14. At its inner end the shaft 13 carries a friction disc 15 which is connected to the disc shaft 2 by means of a clutch 16. The backing pump is connectei to a pipe 11 which is placed between the bearings 4 and 14.
GB39797/29A 1929-01-04 1929-12-30 Improvements in or relating to rotary vacuum pumps Expired GB332879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE332879X 1929-01-04

Publications (1)

Publication Number Publication Date
GB332879A true GB332879A (en) 1930-07-31

Family

ID=6206180

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39797/29A Expired GB332879A (en) 1929-01-04 1929-12-30 Improvements in or relating to rotary vacuum pumps

Country Status (1)

Country Link
GB (1) GB332879A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937804A (en) * 1956-06-29 1960-05-24 Reiner Markus Apparatus for the compression of gases
US2954157A (en) * 1958-01-27 1960-09-27 Edwin E Eckberg Molecular vacuum pump
US3046603A (en) * 1958-02-24 1962-07-31 Research Corp Method and apparatus for extrusion
US3104802A (en) * 1963-09-24 Unified system vacuum pump
US4645413A (en) * 1983-05-17 1987-02-24 Leybold-Heraeus Gmbh Friction pump
US4797062A (en) * 1984-03-24 1989-01-10 Leybold-Heraeus Gmbh Device for moving gas at subatmospheric pressure
WO2002031360A1 (en) * 2000-09-30 2002-04-18 Leybold Vakuum Gmbh Pump embodied as a side channel pump
DE102005042451A1 (en) * 2005-09-06 2007-03-15 Vacuubrand Gmbh + Co Kg Vacuum pumping device for use as oil-lubricated rotary vane pump, has drive and rotary units arranged such that transient area has sealing units separating conveying area from drive area, where one of sealing units is ferrous fluid seal
WO2008027388A2 (en) * 2006-08-31 2008-03-06 Varian S.P.A. Vacuum pumps with improved pumping channel cross sections
US8070419B2 (en) 2008-12-24 2011-12-06 Agilent Technologies, Inc. Spiral pumping stage and vacuum pump incorporating such pumping stage
US8152442B2 (en) 2008-12-24 2012-04-10 Agilent Technologies, Inc. Centripetal pumping stage and vacuum pump incorporating such pumping stage
EP2620649A1 (en) 2012-01-27 2013-07-31 Edwards Limited Gas transfer vacuum pump
WO2013110936A2 (en) 2012-01-27 2013-08-01 Edwards Ltd Gas transfer vacuum pump
EP2491249B1 (en) 2009-10-19 2015-08-05 Edwards Limited Vacuum pump

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104802A (en) * 1963-09-24 Unified system vacuum pump
US2937804A (en) * 1956-06-29 1960-05-24 Reiner Markus Apparatus for the compression of gases
US2954157A (en) * 1958-01-27 1960-09-27 Edwin E Eckberg Molecular vacuum pump
US3046603A (en) * 1958-02-24 1962-07-31 Research Corp Method and apparatus for extrusion
US4645413A (en) * 1983-05-17 1987-02-24 Leybold-Heraeus Gmbh Friction pump
US4797062A (en) * 1984-03-24 1989-01-10 Leybold-Heraeus Gmbh Device for moving gas at subatmospheric pressure
WO2002031360A1 (en) * 2000-09-30 2002-04-18 Leybold Vakuum Gmbh Pump embodied as a side channel pump
DE102005042451B4 (en) * 2005-09-06 2007-07-26 Vacuubrand Gmbh + Co Kg Vacuum pump device
DE102005042451A1 (en) * 2005-09-06 2007-03-15 Vacuubrand Gmbh + Co Kg Vacuum pumping device for use as oil-lubricated rotary vane pump, has drive and rotary units arranged such that transient area has sealing units separating conveying area from drive area, where one of sealing units is ferrous fluid seal
WO2008027388A2 (en) * 2006-08-31 2008-03-06 Varian S.P.A. Vacuum pumps with improved pumping channel cross sections
WO2008027388A3 (en) * 2006-08-31 2008-04-17 Varian Spa Vacuum pumps with improved pumping channel cross sections
US8070419B2 (en) 2008-12-24 2011-12-06 Agilent Technologies, Inc. Spiral pumping stage and vacuum pump incorporating such pumping stage
US8152442B2 (en) 2008-12-24 2012-04-10 Agilent Technologies, Inc. Centripetal pumping stage and vacuum pump incorporating such pumping stage
DE112009004055T5 (en) 2008-12-24 2012-05-31 Agilent Technologies, Inc. Centripetal pumping stage and vacuum pump, which includes such a pumping stage
DE112009004055B4 (en) * 2008-12-24 2013-11-28 Agilent Technologies, Inc. Centripetal pumping stage and vacuum pump, which includes such a pumping stage
EP2491249B1 (en) 2009-10-19 2015-08-05 Edwards Limited Vacuum pump
EP2620649A1 (en) 2012-01-27 2013-07-31 Edwards Limited Gas transfer vacuum pump
WO2013110936A2 (en) 2012-01-27 2013-08-01 Edwards Ltd Gas transfer vacuum pump
US10337517B2 (en) 2012-01-27 2019-07-02 Edwards Limited Gas transfer vacuum pump

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