FR2368638A1 - Magnetic centring appts. for axially rotating parts - the magnets being made of cobalt and rare earth mixts. of high magnetic stability - Google Patents

Magnetic centring appts. for axially rotating parts - the magnets being made of cobalt and rare earth mixts. of high magnetic stability

Info

Publication number
FR2368638A1
FR2368638A1 FR7631735A FR7631735A FR2368638A1 FR 2368638 A1 FR2368638 A1 FR 2368638A1 FR 7631735 A FR7631735 A FR 7631735A FR 7631735 A FR7631735 A FR 7631735A FR 2368638 A1 FR2368638 A1 FR 2368638A1
Authority
FR
France
Prior art keywords
appts
magnets
centring
mixts
cobalt
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
FR7631735A
Other languages
French (fr)
Other versions
FR2368638B1 (en
Inventor
Pierre Brissoneau
Jean-Paul Yonnet
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.)
Bpifrance Financement SA
Original Assignee
Agence National de Valorisation de la Recherche ANVAR
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 Agence National de Valorisation de la Recherche ANVAR filed Critical Agence National de Valorisation de la Recherche ANVAR
Priority to FR7631735A priority Critical patent/FR2368638A1/en
Publication of FR2368638A1 publication Critical patent/FR2368638A1/en
Application granted granted Critical
Publication of FR2368638B1 publication Critical patent/FR2368638B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B04B9/12—Suspending rotary bowls ; Bearings; Packings for 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Centrifugal Separators (AREA)

Abstract

Magnetic centring appts. is described for moving parts where one part is rotating relative to the other around an axis. The appts. comprises >=1 annular magnt on each part. The magnets are both permanent, their magnetism being in an axial direction. They are basically composed of cobalt and rare earth mixts. maintaining a magnetism superior to 0.8 Tesla in a demagnetising field superior to their magnetisation. The radial dimensions of the magnets are different. The appts. may be used to support the spindles of an inertia whell, partic. in a satellite where the fact that it does not need an energy source is partic. beneficial. The appts. can also be used for centring the bowl of a centrifuge for isotope separation. It si also simple and may be easily adapted for various operational methods.
FR7631735A 1976-10-21 1976-10-21 Magnetic centring appts. for axially rotating parts - the magnets being made of cobalt and rare earth mixts. of high magnetic stability Granted FR2368638A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7631735A FR2368638A1 (en) 1976-10-21 1976-10-21 Magnetic centring appts. for axially rotating parts - the magnets being made of cobalt and rare earth mixts. of high magnetic stability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7631735A FR2368638A1 (en) 1976-10-21 1976-10-21 Magnetic centring appts. for axially rotating parts - the magnets being made of cobalt and rare earth mixts. of high magnetic stability

Publications (2)

Publication Number Publication Date
FR2368638A1 true FR2368638A1 (en) 1978-05-19
FR2368638B1 FR2368638B1 (en) 1981-06-19

Family

ID=9179045

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7631735A Granted FR2368638A1 (en) 1976-10-21 1976-10-21 Magnetic centring appts. for axially rotating parts - the magnets being made of cobalt and rare earth mixts. of high magnetic stability

Country Status (1)

Country Link
FR (1) FR2368638A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472106A1 (en) * 1979-12-19 1981-06-26 Thyssen Edelstahlwerke Ag TRANSVERSAL BEARING WITH PERMANENT MAGNET
NL7909129A (en) * 1979-12-19 1981-07-16 Ultra Centrifuge Nederland Nv RING MAGNET.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472106A1 (en) * 1979-12-19 1981-06-26 Thyssen Edelstahlwerke Ag TRANSVERSAL BEARING WITH PERMANENT MAGNET
NL7909129A (en) * 1979-12-19 1981-07-16 Ultra Centrifuge Nederland Nv RING MAGNET.

Also Published As

Publication number Publication date
FR2368638B1 (en) 1981-06-19

Similar Documents

Publication Publication Date Title
US3958842A (en) Radial magnetic bearing
US4998084A (en) Multipolar magnetic ring
GB1424071A (en) Electromagnetic bearing means
JPS6421349A (en) Overcurrent probe and defect detection overcurrent method
ES485375A1 (en) Eddy current speed reducers
DE3871674D1 (en) MAGNETIC ARRANGEMENT.
FR2368638A1 (en) Magnetic centring appts. for axially rotating parts - the magnets being made of cobalt and rare earth mixts. of high magnetic stability
JPS5597172A (en) Face-opposed motor
FR2267649A1 (en) Permanent magnet electric machines - has pole pieces with parts having different remanence and coercive fields
JPS5663117A (en) Magnetic bearing
SE8205530L (en) magnetic
JPH02140907A (en) Magnetization in radial direction
JPS57135663A (en) Motor
JPS57103926A (en) Magnetic bearing device
JPS5775410A (en) Manufacture of multipolar magnet
SE8600667L (en) DEVICE FOR RADIAL MAGNETIZATION OF PERMANENT MAGNETS
SU393041A1 (en) 1 ^ I5LIOTENL A. A. Belimov, Ya-Kh. Gorbulsky, I. V. Gurov, G. N. Itoniaev, N. Ya. Sidorov, and M. I. Schisliev
JPS6416243A (en) Axial flux type brushless motor
SE8600148L (en) MAGNETIC GRADIOMETER
JPS528415A (en) Construction of small size d.c. rotary machine with no core
JPS55113135A (en) Magnetic disk
JPS569676A (en) Vibratory compressor
JPS573048A (en) Rotation detector
SU1145729A1 (en) Magnetic bearing
GB750193A (en) Improvements relating to multipole annular permanent magnets

Legal Events

Date Code Title Description
ST Notification of lapse