Device for trapping fuel vapor vaporized in fuel feed system of

Details Device for trapping fuel vapor vaporized in fuel feed system of Device for trapping fuel vapor vaporized in fuel feed system of

1979-05-22

1981-07-21

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

F02M 2508

Patent

active

042792339

ABSTRACT:
A fuel vapor trapping device for trapping the fuel vapors evaporated in a fuel feed system such as a float chamber of a carburetor and a fuel tank of an internal combustion engine, said device comprising a first canister whose one end is communicated with the float chamber and the high suction in the carburetor and whose the other end is communicated with the surrounding atmosphere and which is filled with a first absorbent capable of absorbing the vapors of hydrocarbons having carbon numbers up to and including seven (C.sub.7), and a second canister whose one end is communicated with the fuel tank and with the high suction in the carburetor and whose the other end is communicated with the surrounding atmosphere and which is filled with a second absorbent capable of absorbing the vapors of hydrocarbons having the carbon numbers up to and including four (C.sub.4). A single canister type is also disclosed wherein the first and second canisters are constructed as a unitary assembly.

REFERENCES:
patent: 3352294 (1967-11-01), Biller et al.
patent: 3628517 (1971-12-01), Soberski
patent: 3884204 (1975-05-01), Krautwurst et al.
SEA Article, "Chrysler Evaporation Control System, The Vapor Saver for 1970", by J. O. Sarto, W. S. Fagley, and W. A. Hunter, Jan. 12-16, 1970.

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