To prevent the deterioration of emission due to purge failure in the vicinity of the center of an adsorption layer.
The evaporated fuel treatment device 1 has a first fuel adsorption part 2 which includes a plurality of adsorption layers and a second fuel adsorption part 3 which accommodates and holds a honeycomb activated carbon 11. The first fuel adsorption part 2 includes a charge port 7 and a purge port 8. The second fuel adsorption part 3 includes an atmospheric port 14 communicating to the atmosphere, and is equipped with a honeycomb activated carbon accommodation part 18 and an atmosphere introduction side end 13 having the atmospheric port 14. A baffle plate 38 (agitation means) for agitating air introduced in a honeycomb activated carbon accommodation part 18 is arranged in the atmosphere introduction side end 13. Thus, a flow velocity distribution in a cross-section direction of the honeycomb activated carbon 11 is substantially uniform at purge so that the honeycomb activated carbon 11 can be effectively purged even though a purge air amount is small.
| JP2004100691A | 2004-04-02 | |||
| JP2004060584A | 2004-02-26 | |||
| JPS58146855A | 1983-09-01 | |||
| JPH1037812A | 1998-02-13 |
Hiromichi Kobayashi
Tomioka Kiyoshi
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