Magnetic drive device

Details Magnetic drive device Magnetic drive device

1992-05-07

1993-12-14

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

464 29, H02K 710

Patent

active

052706001

ABSTRACT:
A magnetic drive device comprising a rotor disposed inside a cylindrical wall so as to be rotatable and axially movable, a fixed magnetic bearing fixedly provided on the cylindrical wall for holding the rotor radially thereof, a magnetic coupling having a drive portion disposed around the cylindrical wall so as to be rotatable and axially movable for transmitting a torque and an axial holding force to the rotor, and a movable magnetic bearing disposed around the cylindrical wall so as to be axially movable with the drive portion of the magnetic coupling for holding the rotor radially thereof.

REFERENCES:
patent: 4381466 (1983-04-01), Laenens
patent: 4732225 (1988-03-01), Jurgens et al.
patent: 4998859 (1991-03-01), Oshima et al.
patent: 5046992 (1991-09-01), Tamai et al.
Hitachi Ltd, Patent Abstract of Japan; "Eading-In Mechanism for Rotational and Linear Motions," vol. II No. 288 (E-542) (2735) Sep. 17, 1987.
Hitachi Ltd, Patent Abstract of Japan; "Rotary Electric Machine Having Magnetic Bearing," vol. II (E-470) (2458) Jan. 13, 1987.

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