| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve adsorption/desorption efficiency of evaporated fuel by causing the flow of evaporated fuel and air in an adsorption chamber to be uniform by reducing a void ratio between an adsorbent and a casing inner peripheral surface defining the adsorption chamber, in an evaporated fuel treatment device having an intake chamber filled with the adsorbent capturing the evaporated fuel. <P>SOLUTION: A void ratio reduction means 60 is provided on an inner peripheral surface of a casing body 20 defining an adsorption chamber of this evaporated fuel treatment device. The void ratio reduction means 60 is, for example, recesses and protrusions formed on the inner peripheral surface of the casing body 20, and forms a protrusion having the same shape and size as a portion of an adsorbent 12. <P>COPYRIGHT: (C)2013,JPO&INPIT |
