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GB1304989A - - Google Patents

Info

Publication number
GB1304989A
GB1304989A GB2500871*A GB2500871A GB1304989A GB 1304989 A GB1304989 A GB 1304989A GB 2500871 A GB2500871 A GB 2500871A GB 1304989 A GB1304989 A GB 1304989A
Authority
GB
United Kingdom
Prior art keywords
shaft
rotor
thrust bearing
april
bearing
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
GB2500871*A
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 filed Critical
Publication of GB1304989A publication Critical patent/GB1304989A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
    • F04D19/042—Turbomolecular vacuum pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
    • F04D19/048—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps comprising magnetic bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0402—Bearings not otherwise provided for using magnetic or electric supporting means combined with other supporting means, e.g. hybrid bearings with both magnetic and fluid supporting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/44—Centrifugal pumps
    • F16C2360/45—Turbo-molecular pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

1304989 Electric motors SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION and COMMISSARIAT A L'ENERGIE ATOMIQUE 19 April 1971 [1 April 1970] 25008/71 Heading H2A [Also in Division F1] A turbomolecular vacuum pump comprises a rotor 16 carried by a vertical shaft 39 which rotates about its axis and on which the rotor 94 of an electrical driving motor is keyed and the shaft is supported vertically by a thrust bearing 38 which is placed either above or below the rotor and permits angular displacement of the shaft about the thrust bearing. The shaft is centred by a magnetic bearing 40 which is placed between the pump housing and the shaft and below or above the rotor according to whether the thrust bearing is above or below the rotor. A number of modifications of the thrust bearing 38 are described. The magnetic bearing 40 comprises a rotary plate which is attached to the shaft and which is provided on each of the two radial faces thereof with centring teeth adapted to cooperate with similar teeth carried by two stationary plates which are rigidly fixed to a box secured to the pump housing and provided with magnets. Cooling and lubrication means for the thrust bearing are described. A beater 84 can be provided for damping oscillations.
GB2500871*A 1970-04-01 1971-04-19 Expired GB1304989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7011571A FR2086525A5 (en) 1970-04-01 1970-04-01

Publications (1)

Publication Number Publication Date
GB1304989A true GB1304989A (en) 1973-01-31

Family

ID=9053185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2500871*A Expired GB1304989A (en) 1970-04-01 1971-04-19

Country Status (7)

Country Link
US (1) US3749528A (en)
BE (1) BE765041A (en)
CA (1) CA947733A (en)
CH (1) CH536940A (en)
FR (1) FR2086525A5 (en)
GB (1) GB1304989A (en)
NL (1) NL166100C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121110A (en) * 1982-04-21 1983-12-14 Hitachi Ltd Turbomolecular pump
US4725198A (en) * 1985-07-09 1988-02-16 James Howden & Company Limited Gas circulator
CN116692401A (en) * 2023-07-31 2023-09-05 原平市兴胜机械制造有限公司 Belt type thin oil lubrication roller

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2213470C3 (en) * 1972-03-20 1988-12-01 Padana AG, Zug Magnetic bearing
GB1398364A (en) * 1972-09-14 1975-06-18 Eheim G Motor and pump combination
FR2224009A5 (en) * 1973-03-30 1974-10-25 Cit Alcatel
DE2349033C3 (en) * 1973-09-29 1984-08-30 Leybold-Heraeus Gmbh, 5000 Koeln Turbo molecular pump
CH583856A5 (en) * 1974-09-27 1977-01-14 Balzers Patent Beteilig Ag
US4116592A (en) * 1976-08-20 1978-09-26 Viktor Yakovlevich Cherny Turbomolecular high-vacuum pulp
DE2654055B2 (en) * 1976-11-29 1979-11-08 Kernforschungsanlage Juelich Gmbh, 5170 Juelich Rotor and stator disks for turbo molecular pumps
FR2378487A1 (en) * 1977-02-01 1978-08-25 Lamour Danielle APPARATUS FOR JOINTLY ENSURING THE WAKING UP AND PREPARATION OF A HOT DRINK OR SIMILAR PRODUCT
US4405286A (en) * 1982-01-21 1983-09-20 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Actively suspended counter-rotating machine
DE3204750C2 (en) * 1982-02-11 1984-04-26 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar Magnetically mounted turbo molecular pump
JPH0646036B2 (en) * 1982-11-19 1994-06-15 セイコー電子工業株式会社 Axial flow molecular pump
DE4314419A1 (en) * 1993-05-03 1994-11-10 Leybold Ag Friction vacuum pump with bearing support
GB9525337D0 (en) * 1995-12-12 1996-02-14 Boc Group Plc Improvements in vacuum pumps
DE69730781T2 (en) * 1996-06-26 2005-09-29 Rolls-Royce Corp., Indianapolis Storage combination for a gas turbine
US6332752B2 (en) 1997-06-27 2001-12-25 Ebara Corporation Turbo-molecular pump
US6508631B1 (en) 1999-11-18 2003-01-21 Mks Instruments, Inc. Radial flow turbomolecular vacuum pump
DE10010371A1 (en) * 2000-03-02 2001-09-06 Pfeiffer Vacuum Gmbh Turbomolecular pump
US6727616B1 (en) * 2000-11-08 2004-04-27 Christopher W. Gabrys Flywheel energy storage system with quill stabilizer
US7679245B2 (en) * 2001-09-17 2010-03-16 Beacon Power Corporation Repulsive lift systems, flywheel energy storage systems utilizing such systems and methods related thereto
US6707202B2 (en) * 2002-03-29 2004-03-16 Emerson Electric Co. Sleeve and bearing that locate a rotating component and a machined surface of a rotary device
US9512848B2 (en) * 2011-09-14 2016-12-06 Texas Capital Semiconductor, Inc. Turbine cap for turbo-molecular pump
US9512853B2 (en) * 2013-03-14 2016-12-06 Texas Capital Semiconductor, Inc. Turbine cap for turbo-molecular pump
US11274671B2 (en) 2011-09-14 2022-03-15 Roger L. Bottomfield Turbine cap for turbo-molecular pump
DE102012224070A1 (en) * 2012-12-20 2014-06-26 Pfeiffer Vacuum Gmbh Bearing holder for a rotary bearing, in particular for a vacuum pump
JP6427963B2 (en) * 2014-06-03 2018-11-28 株式会社島津製作所 Vacuum pump
CN117231209B (en) * 2023-06-16 2025-08-22 中国石油大学(华东) Capsule polymer controllable injection and in-situ viscosity enhancement and oil displacement experimental device and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1402053A (en) * 1919-04-07 1922-01-03 Pyle National Co Elastic-fluid turbine
US2436939A (en) * 1943-10-21 1948-03-02 Hoover Co Magnetic coupling and bearing
CA530369A (en) * 1953-02-24 1956-09-11 E. Shafer Julius Bearing mounting
US3107310A (en) * 1960-08-03 1963-10-15 Const Mecanique Magnetic coupling having a magnetic bearing
FR1475765A (en) * 1966-01-31 1967-04-07 Snecma Improvements to devices with vertical shaft rotating at high speed

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121110A (en) * 1982-04-21 1983-12-14 Hitachi Ltd Turbomolecular pump
US4725198A (en) * 1985-07-09 1988-02-16 James Howden & Company Limited Gas circulator
CN116692401A (en) * 2023-07-31 2023-09-05 原平市兴胜机械制造有限公司 Belt type thin oil lubrication roller
CN116692401B (en) * 2023-07-31 2023-10-27 原平市兴胜机械制造有限公司 Belt type thin oil lubrication roller

Also Published As

Publication number Publication date
BE765041A (en) 1971-08-16
NL7104322A (en) 1971-10-05
FR2086525A5 (en) 1971-12-31
CA947733A (en) 1974-05-21
NL166100B (en) 1981-01-15
CH536940A (en) 1973-05-15
US3749528A (en) 1973-07-31
NL166100C (en) 1981-06-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years