FR2260023A1 - Cylindrical bearing magnet for high speed rotor - has annular radial positioning grooves on rotor and magnet - Google Patents

Cylindrical bearing magnet for high speed rotor - has annular radial positioning grooves on rotor and magnet

Info

Publication number
FR2260023A1
FR2260023A1 FR7403848A FR7403848A FR2260023A1 FR 2260023 A1 FR2260023 A1 FR 2260023A1 FR 7403848 A FR7403848 A FR 7403848A FR 7403848 A FR7403848 A FR 7403848A FR 2260023 A1 FR2260023 A1 FR 2260023A1
Authority
FR
France
Prior art keywords
magnet
rotor
high speed
positioning grooves
cylindrical 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.)
Granted
Application number
FR7403848A
Other languages
French (fr)
Other versions
FR2260023B1 (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 FR7403848A priority Critical patent/FR2260023A1/en
Priority to SE7406654A priority patent/SE7406654L/xx
Publication of FR2260023A1 publication Critical patent/FR2260023A1/en
Application granted granted Critical
Publication of FR2260023B1 publication Critical patent/FR2260023B1/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
    • F16C32/044—Active magnetic bearings
    • F16C32/0459—Details of the magnetic circuit
    • 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
    • F16C32/0474—Active magnetic bearings for rotary movement
    • F16C32/0476—Active magnetic bearings for rotary movement with active support of one degree of freedom, e.g. axial magnetic bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

This type of magnet is used to position a high speed rotor on a shaft so that at no time does the rotor contact the shaft. An extension at each end of the rotor (1a, 1b) carries one half of the magnet, and the other halves face these across a small air gap (2). Three-equal, rectangular sectioned, pairs of annular grooves (4, 5, 6) are made in the faces, with depths at least twice the air gap. A larger pair of grooves (3) lies between two of these grooves and carries the inductive magnet winding in the outer half of the magnet.
FR7403848A 1974-02-05 1974-02-05 Cylindrical bearing magnet for high speed rotor - has annular radial positioning grooves on rotor and magnet Granted FR2260023A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7403848A FR2260023A1 (en) 1974-02-05 1974-02-05 Cylindrical bearing magnet for high speed rotor - has annular radial positioning grooves on rotor and magnet
SE7406654A SE7406654L (en) 1974-02-05 1974-05-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7403848A FR2260023A1 (en) 1974-02-05 1974-02-05 Cylindrical bearing magnet for high speed rotor - has annular radial positioning grooves on rotor and magnet

Publications (2)

Publication Number Publication Date
FR2260023A1 true FR2260023A1 (en) 1975-08-29
FR2260023B1 FR2260023B1 (en) 1976-11-26

Family

ID=9134510

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7403848A Granted FR2260023A1 (en) 1974-02-05 1974-02-05 Cylindrical bearing magnet for high speed rotor - has annular radial positioning grooves on rotor and magnet

Country Status (2)

Country Link
FR (1) FR2260023A1 (en)
SE (1) SE7406654L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452782A1 (en) * 1979-03-30 1980-10-24 Philips Nv RONTGEN TUBE WITH ROTATING ANODE IN MAGNETIC BEARING
CN104533947B (en) * 2015-01-05 2017-08-18 山东大学 A kind of annular poles structure and the axial magnetic bearing with annular poles structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452782A1 (en) * 1979-03-30 1980-10-24 Philips Nv RONTGEN TUBE WITH ROTATING ANODE IN MAGNETIC BEARING
CN104533947B (en) * 2015-01-05 2017-08-18 山东大学 A kind of annular poles structure and the axial magnetic bearing with annular poles structure

Also Published As

Publication number Publication date
SE7406654L (en) 1975-08-06
FR2260023B1 (en) 1976-11-26

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Legal Events

Date Code Title Description
ST Notification of lapse