Rotary actuator for variable damping force shock absorber

Details Rotary actuator for variable damping force shock absorber Rotary actuator for variable damping force shock absorber

1991-05-14

1992-09-22

Halvosa, George E. A.

Brakes

Internal-resistance motion retarder

Controlled by an operator remote from retarder

188319, 25112911, 310 89, 310156, F16F 950, H02K 2114

Patent

active

051488957

ABSTRACT:
A rotary actuator comprises a housing made of a synthetic resin. A rotor carrying a plurality of permanent magnet of alternate polarity with respect to the adjacent magnet, and stator having a plurality of electromagnet which is selectively energized, are aligned in axial alignment to each other. Magnetic conductor plates are provided in alignment with the rotor and the stator. The magnetic conductor plates are supported on the inner periphery of the resin housing in opposition to the rotor and the stator for forming part of a magnetic circuit.

REFERENCES:
patent: 4104552 (1978-08-01), Tsergas
patent: 4398562 (1983-06-01), Saarem et al.
patent: 4596320 (1986-06-01), Shimokura et al.
patent: 4647007 (1987-03-01), Bajka
patent: 4702123 (1987-10-01), Hiran et al.
patent: 4726453 (1988-02-01), Obstfelder et al.
Machine Design, vol. 56, pp. 115-118, Sep. 1984, by Waldspurger et al.

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