F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
137/83
F15B 13/02 (2006.01) B60T 13/573 (2006.01)
Patent
CA 1141622
CONTROL VALVE APPARATUS FOR A PNEUMATICALLY OPERATED SERVOMOTOR ABSTRACT OF THE DISCLOSURE A control valve for a servomotor having a disc located in a bore of a hub attached to a movable wall. The movable wall separates a first chamber from a second chamber. A passage in the disc connects a first passageway with a second passageway in the hub to define a flow path to allow free communication of a first fluid between the first and second chambers. A plunger located in the bore has a first end with an axial projection extending therefrom which engages the disc and a second end connected to an input push rod. An input force applied to the push rod moves the plunger which causes the axial projection to deform the disc and interrupt the flow path between the first and second chambers. Thereafter, further movement of the plunger allows a second fluid to be communicated to the second chamber whereby a pressure differential is created across the wall by the first and second fluids, The pressure acting on the wall creates a force which moves the wall and provides an output member with an operational force.
342868
Bendix Corporation (the)
Macrae & Co.
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