Patent ID: 9376990
Filing Date: 2016-06-28
CPC Classification: B01D,B67D,F02M

Claim Text:
1. An evaporated fuel treatment apparatus in which a passage circulating fluid inside is formed, a tank port and a purge port are formed at one end of the passage, an atmosphere port is formed at the other end of the passage, and at least four adsorbent layers in which adsorbent adsorbing fuel components is filled are provided in the passage, the evaporated fuel treatment apparatus characterized of having a main adsorbent layer and a region that is provided on an atmosphere port side of the main adsorbent layer, wherein: at least three adsorbent layers that are different from the main adsorbent layer, and separating portions separating adjacent ones in the adsorbent layers are provided in the region; and a volume of at least one separating portion in the region is made larger than a total of volumes of the adsorbent layers that sandwich the separating portion therebetween.