Crash proof solenoid controlled valve with manual override valve

Details Crash proof solenoid controlled valve with manual override valve Crash proof solenoid controlled valve with manual override valve

1992-05-08

1993-03-16

Rosenthal, Arnold

Fluid handling

Systems

Flow path with serial valves and/or closures

25112915, 251144, 222 3, 222504, F16K 3106, F16K 1124

Patent

active

051935805

ABSTRACT:
A solenoid controlled valve is mounted in a threaded opening of a pressure vessel which contains compressed natural gas. The valve includes a valve body having a head, which is exposed outside of the pressure vessel, and a neck, which is located within the pressure vessel. A solenoid poppet valve is mounted to the inner end of the neck. A valve seat is mounted in a bore within the valve body. An orifice at an inner end of the valve seat exposes a flow passage between the bore of the valve body and an outlet port, which is located in the head of the valve body. The solenoid poppet valve includes a seal for closing the orifice, a bias spring which biases the seal toward the seat to close the orifice, a plunger which is connected to the seal, and a solenoid coil which, when energized, moves the plunger so that the seal moves out of engagement with the seat and permits flow of compressed gas from the interior of the pressure vessel to the outlet port. A section of the flow passage near an outer end of the valve seat includes a threaded surface, into which is threaded a manual override valve. The manual override valve is capable of being selectively positioned to block the flow passage between the solenoid valve and the outlet port.

REFERENCES:
patent: 2230323 (1941-02-01), Guyton
patent: 4197966 (1980-04-01), Wadensten et al.

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