Canister

Details Canister Canister

1998-05-22

2000-04-11

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123519, 123520, F02M 3704

Patent

active

060476877

ABSTRACT:
A canister for treating fuel vapor generated in a fuel tank and for supplying fuel vapor to an intake system of an engine via a purge passage. First and second adsorbent compartments are defined in a casing by a partition for accommodating adsorbents. First and second dispersion compartments are defined in the casing for dispersing fuel vapor from the fuel tank. The first and the second dispersion compartments are located at one end of the first and second adsorbent compartments, respectively. A valve device is positioned at one side of the second adsorbent compartment for selectively opening and closing in accordance with the difference between internal and external pressures of the casing. A tank valve is connected to one side of the casing corresponding to the first adsorbent compartment for adjusting the pressure in the fuel tank. An external dispersion compartment is connected to a wall of the casing to communicate with the first dispersion compartment. A breather passage is connected to the external dispersion compartment for introducing fuel vapor into the canister from the fuel tank during refueling, and the external dispersion compartment has a cross sectional area larger than that of the breather passage.

REFERENCES:
patent: 5355861 (1994-10-01), Arai
patent: 5623911 (1997-04-01), Kiyomiya et al.
patent: 5632251 (1997-05-01), Ishikawa
patent: 5632808 (1997-05-01), Hara et al.
patent: 5642720 (1997-07-01), Kin
patent: 5653211 (1997-08-01), Ishikawa
patent: 5743943 (1998-04-01), Maeda et al.
patent: 5910637 (1999-06-01), Meiller et al.
patent: 5915364 (1999-06-01), Katou
patent: 5924410 (1999-07-01), Dumas et al.

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