Apparatus for reducing hydrocarbon emission of internal...

Details Apparatus for reducing hydrocarbon emission of internal... Apparatus for reducing hydrocarbon emission of internal...

2006-09-19

2006-09-19

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C123S518000, C123S519000, C123S520000

Reexamination Certificate

active

07107759

ABSTRACT:
A canister communicates with an intake manifold of an internal combustion engine through a purge pipe. The canister absorbs fuel vapor evaporated in a fuel tank. The absorbed fuel vapor is purged into the intake manifold when the engine is on. A gas leak check module communicates with the canister for drawing air by an air suction pump43. When the engine is off, the air suction pump is driven and draws hydrocarbon floating at a vicinity of an intake port through the purge pipe. Thus, the hydrocarbon floating at the vicinity of the intake port is absorbed in the canister so that emission of hydrocarbon is reduced.

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