Reducing valve assembly with spherically shaped operating part

Details Reducing valve assembly with spherically shaped operating part Reducing valve assembly with spherically shaped operating part

1988-09-29

1990-05-01

Cohan, Alan

Valves and valve actuation

Fluid actuated or retarded

Piston type expansible chamber reciprocating valve actuator

251 635, 137193, F16K 31122

Patent

active

049212150

ABSTRACT:
In a reducing valve assembly having a fluid inlet port and a fluid outlet port with a main valve for controlling flow between the inlet and outlet port, the main valve includes a main valve member which is actuated by an operating piston including a piston rod. In order to improve the flow characteristics of the assembly, a movable wall of the piston which transmits displacement through the piston rod to the valve member is connected with the piston rod by shaping the wall extending therebetween with a spherically curved configuration outwardly in a diametral direction from the piston rod.

REFERENCES:
patent: 1950728 (1934-03-01), Heaney
patent: 2155170 (1939-04-01), Odend'hal
patent: 2963040 (1960-12-01), Zinnier
patent: 3262464 (1966-07-01), Frantz
patent: 3291153 (1966-12-01), Lyon
patent: 3358964 (1977-12-01), Cohen
patent: 3701599 (1972-10-01), Stewart

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