Pressure responsive valve

Details Pressure responsive valve Pressure responsive valve

1982-02-24

1984-08-07

Capossela, Ronald C.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 77, 251337, F16K 3112

Patent

active

044639295

ABSTRACT:
A pressure valve has a valve member 22 which can be lifted from its seat against the effect of a valve spring 25, 26 and a control piston 12 which is movable coaxially to the valve member, and a connection passage 15, 21, 23 having a throttle point 16 extending from the pressure side of the valve member to an opening on the side of piston 12 which faces away from the valve member. In order that the valve limit pressure peaks with a simple structure, the valve spring abuts on the control piston and the surface of the valve member on which pressure acts is smaller than the surface of the control piston on which pressure acts and which connected to the valve member surface through the connection passage.

REFERENCES:
patent: 2980139 (1961-04-01), Lynn
patent: 3118648 (1964-01-01), Campbell
patent: 3236256 (1966-02-01), Valentine

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