Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Patent
1993-11-18
1995-02-28
Rivell, John
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
137 43, 137574, 137587, 123519, F16K 2404, F16K 1736, F02M 3302
Patent
active
053928040
ABSTRACT:
A fuel tank structure in an automobile comprising: a fuel tank having a recessed portion and first and second air chambers separated by the recessed portion and having top walls located at different levels; a fuel tube with a breather pipe; a fuel cutoff valve provided on the high-level top wall of the first air chamber and having a casing projecting thereinto, discharge holes for fuel evaporation gas, a valve seat opening formed at the central portion on a top wall of the casing, a float valve movably provided in the casing, and a spring for pressing the float valve toward the valve seat opening; a fuel cutoff valve with a float provided on the low-level top wall of the second air chamber and having a casing projecting thereinto, discharge holes for fuel evaporation gas, a second float valve movably provided in the casing to tightly close a valve seat opening, a spring for pressing the second float valve toward the valve seat opening, a lower casing provided at a bottom of the casing, a float movably accommodated in the lower casing and having a push rod for lifting the second float valve; and a conduit device extending from the fuel cutoff valve and the fuel cutoff valve with the float through a check valve to a canister.
REFERENCES:
patent: 3800978 (1974-04-01), Sigwald
patent: 3910302 (1975-10-01), Sudhir
patent: 4430099 (1984-02-01), Vanagisawa et al.
patent: 4781218 (1988-11-01), Mori et al.
patent: 5028244 (1991-07-01), Szlaga
patent: 5054528 (1991-10-01), Saitoh
patent: 5065782 (1991-11-01), Szlaga
patent: 5172714 (1992-12-01), Kobayashi et al.
patent: 5277168 (1994-01-01), Kondo et al.
Kato Yoshihiro
Kondo Seiji
Aisan Kogyo Kabushiki Kaisha
Rivell John
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