F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
137/95
F15B 11/02 (2006.01) F15B 13/042 (2006.01)
Patent
CA 1329109
MULTI-PORT SELF-REGULATING PROPORTIONAL PRESSURE CONTROL VALVE ABSTRACT OF THE DISCLOSURE A multi-port, self-regulating, proportional control valve preferably uses a load output feedback system to produce working fluid load output pressures that are proportional to pilot control fluid pressures. In some embodiments, the control valve is programmable and capable of different load output pressures selected either prior to, or during, operation. The control valve apparatus according to the present invention is capable of a center-off or neutral condition that requires substantially no pilot control flow when there is no control valve output flow.
613690
Mathis Logan Harold
Weiler Charles Albert
Macrae & Co.
Ross Operating Valve Company D/b/a/ Ross Controls
LandOfFree
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