Fill-up control valve structure

Details Fill-up control valve structure Fill-up control valve structure

2006-02-07

2006-02-07

Lee, Kevin (Department: 3753)

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

C137S043000

Reexamination Certificate

active

06994103

ABSTRACT:
A fill-up control valve structure includes a casing attached to a fuel tank, a float provided in a space defined in the casing so as to cause an up-and-down movement, a valve body provided at an upper portion of the float, a ventilation passage communicating with a downstream side of the valve body, and at least one first ventilation hole opened at a lower part of the casing to connect the inner space of the casing and the fuel tank to introduce fuel from the fuel tank into the space. Furthermore, at least one second ventilation hole is provided at an upper part of the casing to connect the inner space of the casing and the fuel tank. The hole size of second ventilation hole is smaller than that of the first ventilation hole.

REFERENCES:
patent: 6016827 (2000-01-01), Dawson
patent: 6655403 (2003-12-01), Mills
patent: 2003/0098063 (2003-05-01), Mori et al.
patent: 8-258577 (1996-10-01), None

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