Digital servo valve system

Details Digital servo valve system Digital servo valve system

1990-05-16

1991-08-06

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

13762569, 25112911, 251282, F15B 13044

Patent

active

050368869

ABSTRACT:
A novel digital servo valve system for use in displacing an actuator is capable of operating either in closed or open loop mode. The system includes a controller that compares computed values of actuator parameters with preselected parameter values and iteratively determines therefrom command signals for the servo valve. The servo valve is characterized by a ball screw mechanism that eliminates mechanical backlash and a torsion bar which increases radial and angular compliance. A servo valve provided according to the present invention also displays reduced flow forces using a simple, inexpensive valve body in combination with a uniquely configured displaceable spool.

REFERENCES:
patent: 2747612 (1956-05-01), Lee
patent: 3899956 (1975-08-01), Olsen
patent: 3939938 (1976-02-01), Inoue
patent: 4155535 (1979-05-01), Seamone
patent: 4220178 (1980-09-01), Jackson
patent: 4235156 (1980-11-01), Olsen
patent: 4492246 (1985-01-01), Prescott et al.
patent: 4503888 (1985-03-01), Brovald
patent: 4660431 (1987-04-01), Heine
patent: 4673160 (1987-06-01), Tolley
patent: 4674539 (1987-06-01), Sloate
patent: 4732174 (1988-03-01), Ueno
patent: 4901627 (1990-02-01), Schulze

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