| 摘要 |
An evaporated fuel treatment apparatus includes a passage circulating fluid being formed therein, a tank port and a purge port being formed at one end side of the passage, and an atmosphere port being formed at another end side of the passage. At least four adsorbent layers in which adsorbent adsorbing fuel components is filled are provided in the passage. The evaporated fuel treatment apparatus has a main adsorbent layer and a region provided on an atmosphere port side of the main adsorbent layer. At least three adsorbent layers that are different from the main adsorbent layer, and separating portions that separate the adsorbent layers which are adjacent to each other are provided in the region. The volume of at least one separating portion in the region is made larger than a total of the volumes of adsorbent layers that sandwich the separating portion therebetween. |
