Direct drive servovalve with rotary valve

Details Direct drive servovalve with rotary valve Direct drive servovalve with rotary valve

1987-04-24

1989-01-31

Cohan, Alan

Fluid handling

Systems

Multi-way valve unit

13762524, F16K 11085

Patent

active

048009245

ABSTRACT:
An electrical force motor and servovalve combination has a rotary spool directly coupled to the motor shaft without requiring a rotary-to-linear motion convertor; the rotary spool is configured to have a cruciform metering section that cooperates with a flow sleeve having ports and slots configured to produce four-way flow patterns in a reduced length and volume valve package.

REFERENCES:
patent: 660010 (1900-10-01), Ezell
patent: 2239139 (1941-04-01), Allin
patent: 4546338 (1985-10-01), Idogaki

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