Simplified canister for prevention of atmospheric diffusion of f

Details Simplified canister for prevention of atmospheric diffusion of f Simplified canister for prevention of atmospheric diffusion of f

1994-10-04

1996-10-15

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123519, F02M 3704

Patent

active

055643981

ABSTRACT:
A canister for preventing diffusion of fuel vapor to atmosphere is disclosed herein. The canister includes a first case having an adsorbent material, such as activated charcoal, therein and a second case also having an adsorbent material therein. The two cases are joined by a passage having a valve disposed therein. The valve regulates the airflow between the two cases. The first case is connected to the valve, a gas tank, and an engine, while the second case is connected to the valve and to atmosphere. During a refueling operation, the valve is operated so as to allow air to flow from the tank, through the first case and out to the atmosphere through the valve, without passing through the second case.

REFERENCES:
patent: 4815436 (1989-03-01), Sasaki
patent: 4862856 (1989-09-01), Yokoe
patent: 5209210 (1993-05-01), Ikeda
patent: 5337721 (1994-08-01), Kasuya
patent: 5398660 (1995-03-01), Koyama
patent: 5408976 (1995-04-01), Reddy

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