| 摘要 |
PROBLEM TO BE SOLVED: To provide a canister for improving collecting performance by sufficiently restraining a temperature change even in a small type. SOLUTION: In this canister, the inside of a vessel 1 is divided into a main chamber 6 and an auxiliary chamber 8, and are mutually communicated. The main chamber 6 is provided with an inflow port 16 for introducing fuel vapor and an outflow port 18 for exhausting separated fuel to an intake pipe of an internal combustion engine. The auxiliary chamber 8 is provided with an introducing port 26 for introducing air. The fuel vapor introduced from the inflow port 16 is adsorbed in adsorbents 42 and 50. and the fuel adsorbed in the adsorbents 42 and 50 is separated by the air introduced from the introducing port 26. The main chamber 6 is filled with a capsule 44 containing a heat accumulating material for adsorbing or releasing heat by a phase change together with the adsorbent 42. The adsorbent 50 filled in the auxiliary chamber 8 is molded from powdery activated carbon. The adsorbent 50 is formed in a shape of shortening a distance up to the inside activated carbon from a surface of the adsorbent 50. COPYRIGHT: (C)2006,JPO&NCIPI
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