Patent ID: 7143751

Claim:
An air intake apparatus has an air passage in communication with an air filter for a canister used for a fuel storage device and a filler neck installed to a vehicle body such that one end thereof protrudes into a fuel inlet space formed between the vehicle body and a fuel cap door, wherein the filler neck comprises: an inner pipe defining a fuel supply passage; and an outer pipe surrounding at least a portion of the inner pipe such that an air intake space is formed between an outer surface of the inner pipe and the outer pipe; wherein the inner pipe and the outer pipe are formed such that a fuel inlet space and the air intake space are in communication with each other; wherein an air filter and the air intake space are in communication with each other by an air supply pipe such that air in the fuel inlet space can flow to the air filter via the air intake space; wherein an end of the inner pipe and an end of the outer pipe protrude into the fuel inlet space; and wherein a length of the end of the outer pipe protruding into the fuel inlet space is shorter than a length of the end of the inner pipe protruding into the fuel inlet space such that the air intake space can communicate with the fuel inlet space in a state that a fuel cap is mounted to the inner pipe.