| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a canister for efficiently preventing fuel vapor from permeating from a canister case according to the concentration distribution of evaporated fuel. Ž<P>SOLUTION: This canister 1 has a tank port 10 communicating with a fuel tank for storing an adsorbent 19 in the synthetic resin canister case 13, and an atmospheric port 12 communicating with the atmosphere, and is characterized in that evaporated fuel permeability in the vicinity of the tank port 10 becomes the lowest compared with the other part. For example, a thickness in the vicinity of the tank port 10 is most thickened compared with the other part. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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