Engine shutdown valve
First Claim
1. An engine shutdown valve comprising a housing, a gate within said housing and being pivotable about a gate axis, a substantially unobstructed air flow passageway extending through said housing and having a longitudinal axis parallel to said gate axis, said housing comprising two halves joined together along a plane, said plane between said housing halves being parallel to said longitudinal axis of said air passageway, a first compression spring operably mounted so as to bias and move said gate from a first position wherein said air passageway is substantially unobstructed to a second position wherein said air passageway is closed and a piston assembly having a spindle operably acting on said gate, said spindle having a first gate retaining position in which said gate is retained in said first position and a second gate release position out of engagement with said gate when said gate is in said second position, said spindle operably acting to release said gate when said spindle moves from said first retaining to said second release position.
7 Assignments
0 Petitions
Accused Products
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.
-
Citations
8 Claims
- 1. An engine shutdown valve comprising a housing, a gate within said housing and being pivotable about a gate axis, a substantially unobstructed air flow passageway extending through said housing and having a longitudinal axis parallel to said gate axis, said housing comprising two halves joined together along a plane, said plane between said housing halves being parallel to said longitudinal axis of said air passageway, a first compression spring operably mounted so as to bias and move said gate from a first position wherein said air passageway is substantially unobstructed to a second position wherein said air passageway is closed and a piston assembly having a spindle operably acting on said gate, said spindle having a first gate retaining position in which said gate is retained in said first position and a second gate release position out of engagement with said gate when said gate is in said second position, said spindle operably acting to release said gate when said spindle moves from said first retaining to said second release position.
Specification