Idle air flow shutoff valve
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United States of America Patent
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-
Oct 17, 1989
Grant Date -
N/A
app pub date -
Sep 19, 1988
filing date -
Sep 19, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is an idle fluid flow shutoff assembly including a throttle body having a longitudinal axis with a throttle plate disposed transversely to the longitudinal axis. The throttle body includes a secondary passageway having an inlet and an outlet to allow fluid flow to bypass the throttle plate when in a closed position. A motor is secured to the throttle body and cooperates with the secondary passageway for allowing a predetermined amount of fluid flow through the outlet. A pressure-actuated valve is moveable in response to the absence and presence of a predetermined pressure level and cooperates with the secondary passageway for allowing a predetermined amount of fluid flow to the intake manifold when the amount of fluid flow past the motor is not within predetermined limits.
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