Cold start by-pass valve

Details Cold start by-pass valve Cold start by-pass valve

F - Mech Eng,Light,Heat,Weapons

02

D

F02D 9/10 (2006.01) F02M 1/00 (2006.01)

Patent

CA 2044502

COLD START BY-PASS VALVE Abstract of the Disclosure A cold start air control device for an internal combustion engine of the type having an air delivery system in which the delivery of air to a vacuum generating manifold is controlled by a throttle valve and a by-pass valve and parallel with the throttle valve includes a casing that defines a passageway in parallel with the throttle valve and the by-pass valve and which has a cross-sectional area greater than that of the by-pass valve so as to offer a less restricted air flow path than that offered by the by-pass valve. The passageway provides communication between the manifold and atmosphere and a valve is disposed within the passageway for opening and closing the passageway in response to the vacuum level generated by the manifold.

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