Title:
PRESSURE CONTROL VALVE HAVING INTRINSIC FEEDBACK SYSTEM
Document Type and Number:
WIPO Patent Application WO2006060696
Kind Code:
A3
Abstract:
The present invention describes, generally, a method and system for controlling the dynamics of an actuatable load functioning or operable within a servo or servo-type system, wherein the dynamics of the load are controlled by way of a unique pressure control valve (10) configured to provide intrinsic pressure regulation. The pressure control valve (10), which may be referred to as a dynamic pressure regulator because of its capabilities, utilizes dual spools (40) and (50) that are physically independent of one another and freely supported in the valve body (12) to regulate the pressures acting within the overall system between the control or pilot pressure and the load or load pressure. The dual spools (40) and (50) of the pressure control valve (10), although physically independent of one another, function in cooperation with one another in an attempt to maintain a state of equilibrium in the system, namely to keep pressure acting on or within the actuator (220) (the load pressure), or the feedback pressure corresponding to the load pressure, the same as the control or pilot pressure. Moreover, pressure regulation and control is intrinsic to the pressure control valve (10) because of the configuration and function of the dual spools (40) and (50) and the feedback system acting on the spools (40) and (50), thus eliminating the need for electronically or mechanically user controlled systems.
Inventors:
JACOBSEN STEPHEN C (US)
OLSEN SHANE (US)
MORRISON MICHAEL (US)
OLSEN SHANE (US)
MORRISON MICHAEL (US)
Application Number:
PCT/US2005/043704
Publication Date:
November 30, 2006
Filing Date:
December 02, 2005
Export Citation:
Assignee:
SARCOS INVEST LC (US)
JACOBSEN STEPHEN C (US)
OLSEN SHANE (US)
MORRISON MICHAEL (US)
JACOBSEN STEPHEN C (US)
OLSEN SHANE (US)
MORRISON MICHAEL (US)
International Classes:
F15B15/02; F15B13/04; F15B15/08
Foreign References:
| US2861550A | 1958-11-25 | |||
| US4067357A | 1978-01-10 | |||
| US4362018A | 1982-12-07 | |||
| US4266466A | 1981-05-12 |
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