Low-profile fuel tank isolation valve
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United States of America Patent
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-
Sep 17, 2002
Grant Date -
N/A
app pub date -
Jun 15, 2001
filing date -
Jun 15, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A low-profile tank isolation valve mounts on a wall of a fuel tank to enclose an opening in the tank wall through which an inlet port of the valve is communicated to tank headspace. An electric actuator is selectively energized to selectively operate an armature to cause a closure to seat on, and unseat from, a valve seat. The armature is a cylindrical walled tube that is disposed within a central through-hole of the actuator and is selectively positioned along a straight axis coincident with the tube axis. An element that operatively relates the armature to the closure constrains vapor flow through the valve to pass through the armature tube when the closure is unseated. The seat, closure, and element are all disposed within the actuator through-hole.
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