Fuel vapor capturing canister having increased distance of flow

Details Fuel vapor capturing canister having increased distance of flow Fuel vapor capturing canister having increased distance of flow

1994-11-18

1996-07-23

Woo, Jay H.

Gas separation: apparatus

Solid sorbent apparatus

Plural solid sorbent beds

95146, 96139, 96147, 96152, 123519, B01D 5304

Patent

active

055385435

ABSTRACT:
A fuel vapor capturing canister includes a casing formed into the shape of a cylinder and accommodating an adsorbent material and a plurality of partition plates each formed of an impermeable material. The adsorbent material accommodated in the casing has one of two faces communicating with the atmosphere and the other face communicating both with a fuel storage system and an intake system of an engine. The partition plates are disposed in the casing so as to divide the adsorbent material into a plurality of layers. The partition plates has respective communicating holes formed so as not to lie one above another. This arrangement of the partition plates lengthens a path of fuel vapor passing through the activated carbon layers. Since the distance of flow of the fuel vapor in contact with the adsorbent material is thus increased, the fuel component adsorbing efficiency can be improved.

REFERENCES:
patent: 4203401 (1980-05-01), Kingsley et al.
patent: 4308840 (1982-01-01), Hiramatsu et al.
patent: 4338106 (1982-07-01), Mizuno et al.
patent: 4448594 (1984-05-01), Kozawa
patent: 4496379 (1985-01-01), Kozawa
patent: 5148793 (1992-09-01), Reddy

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