Inner-loop valve spool positioning control apparatus

Details Inner-loop valve spool positioning control apparatus Inner-loop valve spool positioning control apparatus

1996-08-20

1999-03-23

Lee, Kevin

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

13762564, 91363R, 91365, F15B 13043

Patent

active

058848940

ABSTRACT:
A valve control system for positioning a valve in response to a command signal. The valve control system comprises a sensor for detecting the position of the valve and for generating an outer feedback signal, a valve location command circuit for comparing the command signal to the outer feedback signal to generate a correction signal, an actuator for positioning the valve in response to pneumatic pressure, a spool slidably disposed within a block to direct pneumatic pressure to the actuator, a spool positioning device for moving the spool to a desired position, a spool sensor for detecting the current position of the spool and generating an inner feedback signal, and a spool location command for comparing the correction signal to the inner feedback signal to generate a spool positioning signal to direct the spool positioning device to move the spool to the desired position.

REFERENCES:
patent: 2953123 (1960-09-01), Reen et al.
patent: 4310143 (1982-01-01), Determan
patent: 4456031 (1984-06-01), Taplin
patent: 4481768 (1984-11-01), Goshorn et al.
patent: 4516230 (1985-05-01), Goodloe et al.
patent: 4593719 (1986-06-01), Leonard
patent: 4907615 (1990-03-01), Meyer et al.
patent: 4980617 (1990-12-01), Tajima
patent: 5012722 (1991-05-01), McCormick
patent: 5073091 (1991-12-01), Burgess et al.
patent: 5079492 (1992-01-01), Takagi
patent: 5123331 (1992-06-01), Hirai
patent: 5165448 (1992-11-01), Handte
patent: 5184055 (1993-02-01), Ohishi et al.
patent: 5184578 (1993-02-01), Quinn et al.
patent: 5409188 (1995-04-01), Takagi
patent: 5502383 (1996-03-01), Funami et al.
patent: 5568022 (1996-10-01), Tranovich
patent: 5586435 (1996-12-01), Kokalis

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