Fluid handling – Systems – Supply and exhaust
Patent
1984-04-20
1985-05-14
Michalsky, Gerald A.
Fluid handling
Systems
Supply and exhaust
91454, 13759616, 13759617, 13762544, F15B 13043
Patent
active
045166056
ABSTRACT:
A four-way control valve comprises two side by side chambers 130, 132. Each chamber has high and low pressure inlet ports 151, 156, 157, 159 and an outlet port 162, 164. The high and low inlet ports of each chamber are alternately closed by respective flexible vanes 126, 128. The vanes extend through and pivot on walls 135, 137 of the chambers and the opposite ends of the vanes are joined by a linking bar 124. The linking bar is driven by a common actuator such as a solenoid 120. The pressures applied to the inlet ports of the chambers are inverted such that the pressures at the two outlet ports are opposite high and low pressures. The four-way valve may serve as a pilot valve 22 to actuate a higher flow capacity three or four-way diaphragm valve.
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patent: 2970611 (1961-02-01), Hoge
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patent: 4131130 (1978-12-01), Ruby
patent: 4285363 (1981-08-01), Kolm
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