Fuel system for reducing fuel vapor

Details Fuel system for reducing fuel vapor Fuel system for reducing fuel vapor

1997-12-19

1999-12-14

Chambers, A. Michael

Fluid handling

Systems

System with plural openings, one a gas vent or access opening

137592, 123516, 123519, F02M 3300

Patent

active

060004266

ABSTRACT:
A system to collect and control the flow of fuel vapor within a vehicle fuel system. In one embodiment, a vapor control unit mounted in the fuel tank permits fuel vapor to be drawn into a tank fill pipe when liquid fuel is being added to the fuel tank to condense at least a portion of the fuel vapor. In a second embodiment a diaphragm actuated valve permits fuel vapor flow from the fuel tank into the tank fill pipe when liquid fuel is being added to the tank to condense at least a portion of the fuel vapor. By condensing the fuel vapor the system reduces the total amount of fuel vapor within the fuel system while preventing the escape of fuel vapor which is hazardous to the environment.

REFERENCES:
patent: 3191587 (1965-06-01), Hall
patent: 3610220 (1971-10-01), Yamada et al.
patent: 3675634 (1972-07-01), Tatsutomi et al.
patent: 3683597 (1972-08-01), Beveridge et al.
patent: 5054453 (1991-10-01), Onufer
patent: 5579802 (1996-12-01), Tuckey
patent: 5606954 (1997-03-01), Yamazaki et al.
patent: 5870997 (1999-02-01), Mukai

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