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US 6,308,692 B1Granted
Fuel vapor recovery apparatus
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTakashi Ishikawa, Tomoyasu Arase
Life of this patent
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Abstract
A fuel vapor recovery apparatus has a canister for adsorbing fuel vapor generated in a fuel chamber formed in a fuel tank. A fuel vapor inlet of the canister is connected to the fuel chamber. A fuel vapor outlet of the canister is connected to an intake passage of an internal combustion engine. Fuel vapor adsorbed by the canister is purged therefrom into the intake passage. An air vent of the canister is connected to an air chamber that has a predetermined capacity.
Claims7
A fuel vapor recovery apparatus comprising:
- a fuel tank forming a fuel chamber therein;
- a canister for adsorbing fuel vapor generated in the fuel chamber, the canister including a fuel vapor inlet, a fuel vapor outlet and an air opening;
- a purge passage extending from the fuel chamber to the fuel vapor inlet and from the fuel vapor outlet to an intake passage of an internal combustion engine, the purge passage allowing the fuel vapor to be purged from the canister into the intake passage;
- and
- an air chamber connected to the air opening, wherein the air chamber is provided separately from the canister.
2 more elements
Dependencies are inferred from the claim text.