Direct-drive type electro-hydraulic servo valve

Details Direct-drive type electro-hydraulic servo valve Direct-drive type electro-hydraulic servo valve

1986-03-20

1987-03-10

Michalsky, Gerald A.

Valves and valve actuation

Electrically actuated valve

13762565, 25112904, F15B 13044

Patent

active

046485805

ABSTRACT:
Disclosed is a direct-drive type electro-hydraulic servo valve in which dynamic characteristics of a spool are simulated by an electronic circuit or a computor to derive a signal representative of the spool velocity and the derived signal is negatively fed back to an input of a power amplifier.

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