Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1992-05-20
1994-04-26
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
1376275, 13762565, 13759617, B60T 800
Patent
active
053060768
ABSTRACT:
A directional valve (170) includes an actuator (92, 144) responsive to feedback pressure from a closed volume load (182) for regulating fluid pressure of the load proportional to an electric signal (172). A double-acting cylinder (64, 148) has a plunger (58, 150) operatively associated with the actuator (92, 144) for opposing movement of the actuator proportional to the feedback pressure of the closed volume load. Opposite faces (66, 68 and 156, 158) of the plunger (58, 150) are arranged to balance the directional valve (170) against working pressure within the valve and to control the magnitude of the feedback force opposing movement of the actuator (92, 144).
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Advertisement Brochure entitled "MPP/MPZ Electro-Pneumatic Proportional Pressure Regulator Valve," published by Festo Corporation, 1988.
G. W. Lisk Company, Inc.
Graham Matthew C.
Young Lee W.
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