Electrical actuator

Details Electrical actuator Electrical actuator

1991-12-09

1997-10-28

Spyrou, Cassandra C.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

H01F 708

Patent

active

056821298

ABSTRACT:
An electrical actuator comprises a first actuator body (1) and a second actuator body (3). The first actuator body comprises two diametrically opposed magnetic poles (N) and (S). The second actuator body is made of a soft-magnetic material and comprises three inwardly directed radial teeth (19, 20 and 21). In order to obtain a maximal ratio between the delivered torque and the applied electric power, only two teeth (19 and 21) are provided with exciter coils (29 and 31). In order to minimize detent torques the three teeth are identical to each other and the first actuator body is suitably diametrically magnetized.

REFERENCES:
patent: 1823979 (1931-09-01), Jordan
patent: 3091728 (1963-05-01), Hogan et al.
patent: 3118138 (1964-01-01), Milas
patent: 3375512 (1968-03-01), Watkins et al.
patent: 3492615 (1970-01-01), Watkins
patent: 3735303 (1973-05-01), Harden
patent: 3848331 (1974-11-01), Pavlik et al.

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