FR2086525A5 - - Google Patents

Info

Publication number
FR2086525A5
FR2086525A5 FR7011571A FR7011571A FR2086525A5 FR 2086525 A5 FR2086525 A5 FR 2086525A5 FR 7011571 A FR7011571 A FR 7011571A FR 7011571 A FR7011571 A FR 7011571A FR 2086525 A5 FR2086525 A5 FR 2086525A5
Authority
FR
France
Prior art keywords
rotor
pump
ball bearing
located under
bearing assembly
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
FR7011571A
Other languages
French (fr)
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.)
Safran Aircraft Engines SAS
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
SNECMA SAS
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 Commissariat a lEnergie Atomique CEA, SNECMA SAS filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7011571A priority Critical patent/FR2086525A5/fr
Priority to CH417271A priority patent/CH536940A/en
Priority to US00127951A priority patent/US3749528A/en
Priority to CA109,014A priority patent/CA947733A/en
Priority to BE765041A priority patent/BE765041A/en
Priority to NL7104322.A priority patent/NL166100C/en
Priority to GB2500871*A priority patent/GB1304989A/en
Application granted granted Critical
Publication of FR2086525A5 publication Critical patent/FR2086525A5/fr
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

The vertical rotating assembly of a vacuum pump (comprising a turbomolecular rotor and the rotating member of an electric driving motor located under the rotor) is centered by a magnetic bearing located above the pump rotor and is supported by a ball bearing assembly located under the rotor and the motor. The ball bearing assembly is so constructed or connected to the pump housing as to tolerate radial deflection of the rotor.
FR7011571A 1970-04-01 1970-04-01 Expired FR2086525A5 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7011571A FR2086525A5 (en) 1970-04-01 1970-04-01
CH417271A CH536940A (en) 1970-04-01 1971-03-23 Turbomolecular vacuum pump
US00127951A US3749528A (en) 1970-04-01 1971-03-25 Vacuum pumps
CA109,014A CA947733A (en) 1970-04-01 1971-03-29 Vacuum pumps
BE765041A BE765041A (en) 1970-04-01 1971-03-31 VERTICAL ROTOR VACUUM PUMP.
NL7104322.A NL166100C (en) 1970-04-01 1971-03-31 TURBO MOLECULAR PUMP WITH A SUPPORT BEARING AND A MAGNETIC CENTERING BEARING.
GB2500871*A GB1304989A (en) 1970-04-01 1971-04-19

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
FR2086525A5 true FR2086525A5 (en) 1971-12-31

Family

ID=9053185

Family Applications (1)

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

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
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
EP0209625A1 (en) * 1985-07-09 1987-01-28 JAMES HOWDEN & COMPANY LIMITED Gas circulator
WO1994025759A1 (en) * 1993-05-03 1994-11-10 Leybold Aktiengesellschaft Friction vacuum pump with bearing support

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2213470B2 (en) * 1972-03-20 1980-04-10 Padana Ag, Zug (Schweiz) 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
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
US4579508A (en) * 1982-04-21 1986-04-01 Hitachi, Ltd. Turbomolecular 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
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
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
US9512848B2 (en) * 2011-09-14 2016-12-06 Texas Capital Semiconductor, Inc. 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
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

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
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
EP0209625A1 (en) * 1985-07-09 1987-01-28 JAMES HOWDEN & COMPANY LIMITED Gas circulator
WO1994025759A1 (en) * 1993-05-03 1994-11-10 Leybold Aktiengesellschaft Friction vacuum pump with bearing support
US5662456A (en) * 1993-05-03 1997-09-02 Leybold Aktiengesellschaft Friction vacuum pump with bearing support

Also Published As

Publication number Publication date
NL166100C (en) 1981-06-15
US3749528A (en) 1973-07-31
BE765041A (en) 1971-08-16
NL7104322A (en) 1971-10-05
CH536940A (en) 1973-05-15
NL166100B (en) 1981-01-15
CA947733A (en) 1974-05-21
GB1304989A (en) 1973-01-31

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Legal Events

Date Code Title Description
TP Transmission of property