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AssigneesDenso Corporation, Nippon Soken, Inc.
InventorsMasao Kano, Nobuhiko Koyama, Hideki Kato, Noriyasu Amano, Hideaki Itakura, Naoya Kato
Estimating the term…
An evaporated fuel adsorbed by an adsorbing member of a canister is compulsively desorbed by driving of a purge pump and is introduced into an intake passage of an internal combustion engine. In this instance, intake pulsation of the intake passage of an internal combustion engine is introduced into a driving chamber of the purge pump and a partition is moved, so that the capacity of a pump chamber is varied. In other words, the purge pump conducts its pump operation by utilizing the movement of the partition resulting from the introduction of intake pulsation of the intake passage of the internal combustion engine, and a power loss can be thus reduced. When a pressure difference is small between the intake pressure inside the intake passage of the internal combustion engine and the pressure on the canister side, too, a desired purge flow rate can be secured in accordance with the operating condition of the internal combustion engine.
An evaporated fuel processor comprising:
An evaporated fuel processor comprising:
An evaporated fuel processor comprising:
An evaporated fuel processor including a canister having an evaporated fuel adsorbing layer for temporarily adsorbing and holding an evaporated fuel emitted from a fuel tank into an evaporated fuel passage, and disposed inside a case having one of the ends thereof connected to the evaporated fuel passage extending to said fuel tank and the other end thereof connected to a purge passage extending to an intake pipe of an engine, for delivering the evaporated fuel into said intake pipe through said purge passage by utilizing a negative intake pressure occurring in said intake pipe during the operation of said engine, said evaporated fuel processor comprising:
Dependencies are inferred from the claim text.