Title:
VENT VALVE OF FUEL CHAMBER
Document Type and Number:
Japanese Patent JPS5420236
Kind Code:
A
Abstract:
In a fuel vapor recovery system for an internal combustion engine, a canister fuel bowl vent valve is provided with a normally open valve element to control flow in a vent passage between the carburetor fuel bowl and a vapor storage canister, the valve element being responsive to engine vacuum to effect closing movement thereof whereby to block the flow of fuel vapors from the fuel bowl to the canister and, an electrical switch, responsive to engine oil pressure, energizes a solenoid which holds the valve element in a closed position, after it has been moved to a closed position in response to engine vacuum, whereby full venting of fuel vapors from the carburetor fuel bowl to the canister occurs only when the engine is not in operation.
Inventors:
RESURII KEE UORUTAAZU
Application Number:
JP8460578A
Publication Date:
February 15, 1979
Filing Date:
July 13, 1978
Export Citation:
Assignee:
GEN MOTORS CORP
International Classes:
F02M25/08; (IPC1-7): F02M25/08; F02M33/00