Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Patent
1978-03-15
1983-03-15
Cohan, Alan
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
137450, F16K 1702
Patent
active
043764460
ABSTRACT:
A vent valve for venting fuel and other such tanks includes a float having a valve closure poppet for opening and closing the valve at a predetermined liquid level in the tank. The valve also has a bellows actuator which relieves excessive internal tank pressures by holding the closure poppet open in opposition to buoyant forces on the float when the excessive pressures are encountered. The bellows actuator and the valve poppet are self-compensating since higher internal tank pressures cause the actuator to increase the valve opening for greater pressure relief.
REFERENCES:
patent: 3162209 (1964-12-01), Gaines
patent: 3860026 (1975-01-01), Hendrik
patent: 4014362 (1977-03-01), O'Neil
Cohan Alan
Kaman Aerospace Corporation
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