Patent ID: 7294179

Claim:
A canister of a vehicle, comprising: a partition dividing the inner space of a canister into a first space and a second space, said first space communicating with an fuel vapor inlet and a purge outlet, and said second space communicating with a vent-hole: a first activated charcoal packed in said second space near said vent-hole: a second activated charcoal packed in said first space and a residual space of said second space after packing said second space with said first activated charcoal: wherein an air space is formed between said first activated charcoal and said second activated charcoal of said second space, wherein said air space is formed in said second space and positioned not less than about 1/3 and not more than about 2/3 range of the overall length of said second space from said vent-hole: and a diffuser installed in between said first activated charcoal and said second activated charcoal for evenly dispersing the flow of gas into said first activated charcoal and said second activated charcoal: wherein two diffusers are equipped at a top and bottom side of said air space for being separated from each other.