Force motor with contoured spring coupling

Details Force motor with contoured spring coupling Force motor with contoured spring coupling

1984-04-04

1986-01-07

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335262, H01F 708

Patent

active

045636648

ABSTRACT:
A direct drive valve wherein a force motor (10) controls the position of a valve slide (20) through a linkage (14). The force motor includes a spring assembly (62) having cantilevered springs (68 and 70) that include petals (72). The armature (48) of the force motor is guided by a plurality of balls (84) that contact both an internal tube assembly (47) and the armature.

REFERENCES:
patent: 3207961 (1965-09-01), Lohr
patent: 3690431 (1972-09-01), Howard
patent: 3940726 (1976-02-01), Gershnow
patent: 3994382 (1976-11-01), McIntosh
patent: 4463332 (1984-07-01), Everett
Application and Use of Rare Earth Magnets, by M. F. Marx, SAE Aerospace Control and Guidance Systems Committee, Meeting No. 41, Palo Alto, CA.

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