Fluid handling – Control by change of position or inertia of system – Vent opening or closing on tipping container
Patent
1994-04-21
1996-06-04
Nilson, Robert G.
Fluid handling
Control by change of position or inertia of system
Vent opening or closing on tipping container
137202, F16K 1736
Patent
active
055224172
ABSTRACT:
An anti-spilling valve for a vehicle fuel tank includes a cylindrical valve chamber having an upper wall at its upper end and closed at its lower end by a filter, an upwardly directed exhaust passage for fuel vapor formed at the center of the upper wall of the cylindrical valve chamber, a connecting pipe provided on the upper wall of the cylindrical valve chamber to extend radially outward and to have its inner end communicate with the upper end of the exhaust passage at a right angle, the inside diameters of the exhaust passage and the connecting pipe being equal, a float housed in the cylindrical valve chamber to be vertically movable and having on its upper surface a valve head adapted for closing the lower end of the exhaust passage, and a valve seat ring attached to the lower end of the exhaust passage closed by the valve head of the float, the valve seat ring having a smaller inside diameter than the exhaust passage.
REFERENCES:
patent: 4779637 (1988-10-01), Ubaldi
patent: 5139043 (1992-08-01), Hyde
Takahashi Atsushi
Tomioka Kazuyuki
Nifco Inc.
Nilson Robert G.
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