Solenoid-actuated diaphragm valve with biased disc spring

Details Solenoid-actuated diaphragm valve with biased disc spring Solenoid-actuated diaphragm valve with biased disc spring

1994-08-01

1995-11-28

Schwadron, Martin P.

Valves and valve actuation

Electrically actuated valve

Including solenoid

25112917, 251331, F16K 3102, F16K 714

Patent

active

054700450

ABSTRACT:
A valve apparatus wherein a diaphragm is provided above a valve seat in the valve body, employing a structure whereby the diaphragm can be depressed onto the valve seat, wherein a means of load is provided to depress the diaphragm, wherein an electromagnetic actuator is installed to separate the diaphragm from the valve seat, wherein a thin plate disc is provided with its center fixed to the periphery of the means of load and wherein a valve stem is positioned being fixed to the center of the thin plate disc. Driving the electromagnetic actuator, the valve stem is pulled up opposing the resilient force of the thin plate disc to allow the diaphragm to restore itself from its status being depressed onto the valve seat, thus controlling the aperture of the valve appropriately and smoothly. This invention therefore can provide a valve unit with a simplified structure but capable of maintaining a high cleanliness and improved flow rate controllability.

REFERENCES:
patent: 3134932 (1964-05-01), Ray
patent: 4813647 (1989-03-01), Yagi et al.
patent: 5046701 (1991-09-01), Barber

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