Air valve

Details Air valve Air valve

1983-03-31

1985-02-19

Scott, Samuel

Valves and valve actuation

With selective flow regulation

251333, 251129, F16K 100

Patent

active

045000689

ABSTRACT:
Flow from the inlet chamber to the outlet chamber is regulated by the sleeve valve moving relative to the metering cone fixed in the valve body. The valve is guided in the stainless steel ring molded into the partition between the chambers. The valve is actuated by a hybrid linear actuator. The valve seats on the shoulder or flange and the effects of lift-off of the valve are minimized by the sharp edge on the valve and by the uniform diameter section of the metering cone. The sleeve valve is offset inwardly so the I.D. at the sharp edge is the same as the O.D. where the valve passes through the ring. This prevents loss of control of the valve. The valve hits a stop before the sleeve clears the cone and this prevents the valve from reaching a position in which the actuator and return spring have no effect.

REFERENCES:
patent: 1760391 (1930-05-01), Williams et al.
patent: 3140073 (1964-07-01), Finck, Jr.
patent: 3430654 (1969-03-01), Mills
patent: 3654950 (1972-04-01), Hamm
patent: 3746041 (1973-07-01), Friedland

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