[go: up one dir, main page]

FR2253950A2 - Shock absorber for magnetic centrifuge bearing - magnetic spacers in damping media complete field - Google Patents

Shock absorber for magnetic centrifuge bearing - magnetic spacers in damping media complete field

Info

Publication number
FR2253950A2
FR2253950A2 FR7343490A FR7343490A FR2253950A2 FR 2253950 A2 FR2253950 A2 FR 2253950A2 FR 7343490 A FR7343490 A FR 7343490A FR 7343490 A FR7343490 A FR 7343490A FR 2253950 A2 FR2253950 A2 FR 2253950A2
Authority
FR
France
Prior art keywords
magnetic
spacers
shock absorber
ring
concentric
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.)
Granted
Application number
FR7343490A
Other languages
French (fr)
Other versions
FR2253950B2 (en
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.)
Societe Europeenne de Propulsion SEP SA
Original Assignee
Societe Europeenne de Propulsion SEP SA
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 Societe Europeenne de Propulsion SEP SA filed Critical Societe Europeenne de Propulsion SEP SA
Priority to FR7343490A priority Critical patent/FR2253950A2/en
Priority to SE7406653A priority patent/SE389618B/en
Publication of FR2253950A2 publication Critical patent/FR2253950A2/en
Application granted granted Critical
Publication of FR2253950B2 publication Critical patent/FR2253950B2/fr
Granted 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/18—Suppression of vibrations in rotating systems by making use of members moving with the system using electric, magnetic or electromagnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/14—Balancing rotary bowls ; Schrappers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Centrifugal Separators (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The bearing support base has an annular groove (1a) in its upper face concentric with the centrifuge axis. A soft iron ring (4) is in the base of this groove and two rectangular section annular magnets (2) (either permanent or electro-) lie on this ring with polarities reversed, and a void between them. An annular assembly composed of two concentric magnetic rings (8a) united by a coplanar non-magnetic ring (8b) is held above the magnets by supports. The base of the rotor has two extended concentric rings (6b) positioned to line up with the magnetic spacers, completing the magnetic field (7) and is separated from the magnetic spacers by a sealing membrane (11). The damping effect is obtained by the movement of visions fluid beneath the membrane.
FR7343490A 1973-12-05 1973-12-05 Shock absorber for magnetic centrifuge bearing - magnetic spacers in damping media complete field Granted FR2253950A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7343490A FR2253950A2 (en) 1973-12-05 1973-12-05 Shock absorber for magnetic centrifuge bearing - magnetic spacers in damping media complete field
SE7406653A SE389618B (en) 1973-12-05 1974-05-20 VIBRATION VAMPER FOR MAGNETIC STORAGE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7343490A FR2253950A2 (en) 1973-12-05 1973-12-05 Shock absorber for magnetic centrifuge bearing - magnetic spacers in damping media complete field

Publications (2)

Publication Number Publication Date
FR2253950A2 true FR2253950A2 (en) 1975-07-04
FR2253950B2 FR2253950B2 (en) 1977-09-30

Family

ID=9128790

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7343490A Granted FR2253950A2 (en) 1973-12-05 1973-12-05 Shock absorber for magnetic centrifuge bearing - magnetic spacers in damping media complete field

Country Status (2)

Country Link
FR (1) FR2253950A2 (en)
SE (1) SE389618B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997019273A3 (en) * 1995-11-24 1997-10-23 Forschungszentrum Juelich Gmbh Magnetic bearing
EP1801436A1 (en) * 2005-11-24 2007-06-27 Siemens Aktiengesellschaft Magnetic bearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997019273A3 (en) * 1995-11-24 1997-10-23 Forschungszentrum Juelich Gmbh Magnetic bearing
US6118200A (en) * 1995-11-24 2000-09-12 Forschungszentrum Julich Gmbh Magnetic bearing
EP1801436A1 (en) * 2005-11-24 2007-06-27 Siemens Aktiengesellschaft Magnetic bearing

Also Published As

Publication number Publication date
FR2253950B2 (en) 1977-09-30
SE389618B (en) 1976-11-15
SE7406653L (en) 1975-06-06

Similar Documents

Publication Publication Date Title
ATE103048T1 (en) MECHANICAL SEAL WITH SPLIT RINGS.
GB783881A (en) Improvements relating to shaft and like seals
ES279189A1 (en) A magnetic suspension device for a rotor (Machine-translation by Google Translate, not legally binding)
CA933225A (en) Self-centering permanent magnet bearing
GB1379491A (en) Magnetic bearing
ES424373A1 (en) Permanent magnet rotor for a synchronous motor and method of making same
GB1517387A (en) Turntable speed lock system
FR2253950A2 (en) Shock absorber for magnetic centrifuge bearing - magnetic spacers in damping media complete field
ES428974A1 (en) Device intended to protect a joint between two elements
GB1453983A (en) Induction meter with a temperature compensated magnetic bearing assembly
ES410589A1 (en) Magnet assembly
GB1288922A (en)
EP0182656A3 (en) Ferrofluid seal apparatus and method
SU653470A1 (en) Magnetic fluid seal
GB1444499A (en) Obturator for the rotor of a rotating machine which conveys a noxious fluid
GB1472268A (en) Bearings
SU889988A1 (en) Magnetic liquid sealing
SU773350A1 (en) Magnetic-liquid seal
GB1256549A (en)
GB959073A (en) Improvements relating to seals
SU454385A1 (en) Mechanical seal
GB1229515A (en)
GB1382429A (en) Indexing apparatus
GB867567A (en) Improvements in or relating to turntable apparatus for gramophone records
SU717458A1 (en) Magnetic liquid seal