Valve for fuel tank

Details Valve for fuel tank Valve for fuel tank

2007-07-17

2007-07-17

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel flow regulation between the pump and the charge-forming...

C123S518000

Reexamination Certificate

active

11103495

ABSTRACT:
A valve for a fuel tank includes an upper space or chamber communicating with a ventilation channel; a lower chamber disposed inside a fuel tank; a communicating part for communicating the upper space with the lower chamber; and a float body disposed inside the lower chamber for floating to block the communicating part from the lower chamber when fuel flows into the lower chamber. A space between an inner surface of the lower chamber and an outer surface of the float body becomes a flow channel for gas when the float body is in a lower position. A distance between the outer surface of the float body and the inner surface of the lower chamber is not uniform in a circumferential direction of the float body. A portion having a large distance functions as a main flow channel for gas.

REFERENCES:
patent: 5443561 (1995-08-01), Sakata et al.
patent: 5711339 (1998-01-01), Kurihara
patent: 6959720 (2005-11-01), Kurihara et al.
patent: 2001/0004890 (2001-06-01), Shimamura et al.
patent: 2002/0011265 (2002-01-01), Ganachaud
patent: 2002/0121301 (2002-09-01), Devall
patent: 2 388 646 (2003-11-01), None
patent: 10-238429 (1998-09-01), None
patent: 11-229984 (1999-08-01), None
patent: 2002-21665 (2002-01-01), None

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