Control motor for a servo valve

Details Control motor for a servo valve Control motor for a servo valve

1990-04-23

1991-06-18

Cohan, Alan

Fluid handling

Pressure modulating relays or followers

335229, 335276, G05D 1620

Patent

active

050242474

ABSTRACT:
A control motor for a servo valve which includes pole screws defining an armature space, first and second coils supported by the pole screws, respectively, a soft metal armature which is resiliently mounted to a thin walled tube and a permanent magnet which polarizes the armature. An annular body carrying said pole screws and providing for a magnetic path between the pole screws and the permanent magnet.

REFERENCES:
patent: 3777784 (1973-11-01), Nicholson
patent: 3910314 (1975-10-01), Nicholson
patent: 4682063 (1987-07-01), Lembke
Ingenieur Digest No. 3, Mar. 1970, pp. 67-74; 77-82.
Der Hydraulik Trainer, RD99391/6.78, pp. 149 and 150.
The Hydraulic Trainer, RE 00 301, pp. 149 and 150.

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