Patent ID: 8307812
Filing Date: 2012-11-13
Classification: F02M

Abstract:
1. A vaporized-fuel processing device for an engine, comprising a canister ( 1 ) provided with a vaporized-fuel inlet ( 2 ) and with an air inlet ( 3 ) as well as with a purge-gas outlet ( 4 ), the vaporized-fuel inlet ( 2 ) being communicated with the vaporized-fuel outlet ( 6 ) of a fuel reservoir ( 5 ) and the air inlet ( 3 ) being communicated with the air, the purge-gas outlet ( 4 ) being also communicated with the purge-gas sucking port ( 8 ) of the intake-air passage ( 7 ), the vaporized fuel ( 9 ) within the fuel reservoir ( 5 ) being adsorbed to an adsorbing member of the canister ( 1 ), while the engine is in operation, the intake-air negative pressure produced in the intake-air passage ( 7 ) being made to suck the air ( 10 ) from the air inlet ( 3 ) into the canister ( 1 ), the air ( 10 ) separating the vaporized fuel ( 9 ) adsorbed to the adsorbing member of the canister ( 1 ), the purge gas ( 11 ) resulting from mixing the vaporized-fuel ( 9 ) into the air ( 10 ) being sucked from the purge-gas sucking port ( 8 ) into the intake-air passage ( 7 ), wherein a throttle body ( an intake-air pipe ( during the engine's operation, in order for the intake-air negative pressure produced in the intake-air passage ( a blow-by gas sucking pipe ( the intake-air pipe ( the intake-air pipe ( the blow-by gas sucking pipe ( the purge-gas sucking pipe (