| 摘要 |
PURPOSE:To improve collection efficiency, by a method wherein on adsorbent, having a high pore size, and an absorbent, having a low pore size, and activated cola fiber are arranged in a direction extending from the one end of a canister container, in which a vaporized fuel introduction and a purge port are formed, toward the other end in which an open air release port is formed. CONSTITUTION:A vaporized fuel introduction port 23, a feed oil vaporized fuel introduction port 24, and a purge port 25, connected to the suction pipe of an internal combustion engine are formed in an upper end plate 22 of a canister container 20, and an open air release port 32 opened to the open air is formed in the other end of the canister container 20. A first adsorption layer 33, formed in the direction of the open air release port 32 side by laminating granular activated cool having a high pore size of approximate 15 A, a second adsorption layer 34, formed in the middle by laminating granular activated coal adsorbing mainly a low boiling point component and having a low pore size of approximate 10A, end a third adsorbent layer 35, formed by activated coal fiber, ore formed, in order, from the upper end plate 22 side toward the open air release port 32 side.
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