Patent ID: 7171954
Filing Date: 2007-02-06
Classification: F02M

Abstract:
1. A fuel vapor adsorbing device for adsorbing residual fuel vapors that remain in an intake conduit of an induction system of an internal combustion engine when the internal combustion engine is stopped, comprising: an adsorbing member that is constructed to adsorb the residual fuel vapors and is disposed along an inner wall surface of the intake conduit; and a gas shield member that is arranged and constructed to prevent the adsorbing member from being directly exposed to blow-by gases that are returned into the intake conduit during engine operation, wherein the adsorbing member is arranged and constructed to form a supplemental intake path between the adsorbing member and the inner wall surface of the intake conduit, so that intake air of the engine can flow through the supplemental intake path, and wherein the gas shield member is constructed from first and second plates that are disposed at a predetermined spacing, each of the first and second plates having a plurality of instreaming openings, and wherein the instreaming openings of the first and second plates are arranged so as not to align with each other along a direction corresponding to the thickness of the first and second plates.