Servo valve

F - Mech Eng,Light,Heat,Weapons – 15 – B

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121/63

F15B 13/00 (2006.01) B65H 23/02 (2006.01)

Patent

CA 1209418

Abstract of the Disclosure The housing has an inner area defined by end walls, side walls, a top wall, and a bottom wall having a flat inner surface. Inlet and outlet ports open through the flat inner surface. The inlet port is arranged to be connec- ted to a supply source of pneumatic pressure and the outlet ports are arranged to be connected to an actuator. A control member in the housing has a pair of recesses facing the inner surface in association with the inlet and outlet ports. The control member is suspended by a pair of leaf springs. A diaphragm is controlled by a pneumatic correction signal force from a low pressure sensor circuit and is arranged under the influence of such signal force to selectively position the control member relative to the inlet and outlet ports for controlling power to the actuator.

436518

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