Engine shutdown valve

Details Engine shutdown valve Engine shutdown valve

1996-07-24

2000-03-07

Chambers, A. Michael

Valves and valve actuation

Fluid actuated or retarded

Piston type expansible chamber reciprocating valve actuator

251 74, 251302, 251367, 123198F, F16K 3144

Patent

active

060329211

ABSTRACT:
An engine shutdown valve comprises a housing and a gate movable within a housing between a first position where the air flow through the shutdown valve is substantially unrestricted to a second position where the opening is restricted thereby stopping air flow. The gate is pivotable about an axis. The gate has an extension with a recess which is engageable by a piston movable between a first position where the gate is held in its latched position and a second position out of engagement with the recess so as to allow the gate to move to a position where the air passageway is closed. The gate is movable by a rod attached to the gate lever and which rod is biased by a compression spring mounted within a sleeve. The spring is adjustable to increase or decrease the force on the gate and such adjustment can be accomplished from outside the shutdown without disassembly of the entire valve.

REFERENCES:
patent: 4215845 (1980-08-01), Sturgeon
patent: 4285494 (1981-08-01), Sturgeon
patent: 4537386 (1985-08-01), Krepela
patent: 5203536 (1993-04-01), Krepela
patent: 5205252 (1993-04-01), Krepela

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