Fuel delivery device of fuel tank

Fluid handling – Liquid level responsive or maintaining systems – Control of outflow from tank

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Details

137565, 137573, 123514, 123515, 123516, F16K 2118

Patent

active

058948570

ABSTRACT:
A fuel delivery device for a fuel tank comprising a float chamber for sucking fuel in a normal state, a sub chamber for sucking a small quantity of fuel remaining within a tank and a communication chamber for communicating the float chamber and the sub chamber to each other in lower portions thereof En the fuel delivery device for a fuel tank, a sub float chamber is provided above the sub chamber, the sub float chamber has a gas discharge port communicating with-the fuel tank in an upper portion, a vent hole communicating with the sub chamber in a lower portion and a sub float valve within, and the sub float valve ascends and descends in accordance with a quantity of an excess fuel returned to the sub float chamber from the engine so as to open and close the vent hole. Further, in the fuel delivery device for a fuel tank, a bypass passage having bent passage sections of down, up and down which is formed by arranging a lower separation wall having a gap in an upper portion with respect to a communication passage for feeding out fuel from the sub chamber to the communication chamber and an upper separation wall having a gap in a lower portion with respect to the communication passage in order is formed within the sub chamber and the bypass passage and the communication passage are connected to each other.

REFERENCES:
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patent: 2414158 (1947-01-01), Mock
patent: 2599699 (1952-06-01), Dilworth et al.
patent: 4279232 (1981-07-01), Schuster et al.
patent: 4367181 (1983-01-01), Hack, Jr.
patent: 5170764 (1992-12-01), Tuckey
patent: 5389245 (1995-02-01), Jaeger et al.
patent: 5447175 (1995-09-01), Takaki et al.

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