Title:
【発明の名称】ディジタルサーボ弁機構
Document Type and Number:
Japanese Patent JPH04506693
Kind Code:
A
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.
Inventors:
Olsen, Zeny
Spellbeck, Albert Jay.
Eric Hanman
D'Angelo, Galli
Spellbeck, Albert Jay.
Eric Hanman
D'Angelo, Galli
Application Number:
JP50279790A
Publication Date:
November 19, 1992
Filing Date:
December 12, 1989
Export Citation:
Assignee:
Olsen Controls, Incorporated
International Classes:
F15B9/09; F15B9/03; F15B13/04; F15B13/044; G05B19/23; G05B19/414; (IPC1-7): F15B9/09
Attorney, Agent or Firm:
Suzuki Morisaburo