Normally closed solenoid operated valve assembly with relief fun

Details Normally closed solenoid operated valve assembly with relief fun Normally closed solenoid operated valve assembly with relief fun

1975-09-04

1976-08-31

Klinksiek, Henry T.

Valves and valve actuation

Lost motion between actuator and valve

Check valve with external opening and closing means

251129, F16K 3142

Patent

active

039776492

ABSTRACT:
A normally closed solenoid operated valve assembly having a poppet movable between a valve normally closed position seating in and closing in orifice and a valve normally open position. A movable armature has a reduced section for engaging and pulling the poppet to the open position. A range spring tends to bias the poppet closed until the upstream force of fluid is sufficient to overcome the spring force. The spring force may be adjusted to vary to a predetermined value the upstream force of fluid. To open the valve, a solenoid is energized to move the armature thereby to move the poppet to the open position.

REFERENCES:
patent: 959618 (1910-05-01), Schmidt
patent: 2121657 (1938-06-01), Fisher
patent: 3420493 (1969-01-01), Kraft
patent: 3737141 (1973-06-01), Zeuner

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