Electromagnetically operated valve structure

Details Electromagnetically operated valve structure Electromagnetically operated valve structure

1977-11-21

1979-06-05

Rosenthal, Arnold

Valves and valve actuation

Fluid actuated or retarded

Dashpot or fluid controlled retarder or timer

251129, F16K 3106, F16K 4708

Patent

active

041571681

ABSTRACT:
To suppress spurious oscillations of a membrane-suspended plunger forming a valve body cooperating with the valve seat, the plunger is formed with a blind bore into which a small piston extends, with slight clearance, the bore and piston forming a damping cylinder-piston arrangement which includes additionally a damping fluid so that, upon movement of the plunger as the consequence of energization of a solenoid, the damping cylinder-piston system will suppress such oscillations while still permitting positive movement of the plunger and hence seating the operation of the valve with minimum force due to the membrane suspension thereof.

REFERENCES:
patent: 3446471 (1969-05-01), Westphal

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