Filter and canister having the same

Details Filter and canister having the same Filter and canister having the same

2006-03-07

2006-03-07

Spitzer, Robert H. (Department: 1724)

Gas separation: apparatus

Solid sorbent apparatus

Plural solid sorbent beds

C096S135000, C096S136000, C096S147000, C096S153000, C055S487000, C123S519000

Reexamination Certificate

active

07008471

ABSTRACT:
A canister is connected to a fuel tank to adsorb fuel vapor vaporized in the fuel tank and includes a canister housing and a canister main body, which is received in the canister housing and communicates with the fuel tank at one end. The canister housing includes an atmospheric port and a filter chamber, and the filter chamber receives a filter and communicates between the other end of the canister main body and the atmospheric port, which in turn communicates with the atmosphere. The filter includes an active carbon part, an atmosphere-side unwoven fabric and a tank-side unwoven fabric. The active carbon part includes active carbon granules, which adsorb fuel vapor vaporized in the fuel tank. The atmosphere-side unwoven fabric and the tank-side unwoven fabric sandwich the active carbon part therebetween in a flow direction of air, which passes through the active carbon part.

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