Fluid handling – Control by change of position or inertia of system – Vent opening or closing on tipping container
Patent
1988-03-03
1989-02-28
Nilson, Robert G.
Fluid handling
Control by change of position or inertia of system
Vent opening or closing on tipping container
F16K 1736
Patent
active
048076562
ABSTRACT:
A valve device for preventing fuel effusion from a fuel tank, including a casing having an inlet port in the forward position and an outlet port in the rearward position for evaporated fuel, a valve body disposed in a casing so as to be movable in the direction along the axis line connecting the inlet port and the outlet port so that it can interrupt the communication between the inlet port and the outlet port, a steel ball disposed in the valve body so as to be movable rollingly in the direction of said axis, thereby moving the valve body by the rolling action. The axis is arranged so as to be slanted by a specific angle with respect to the horizontal direction of a vehicle body, thereby making it possible for the valve body not to maintain the communicaiton interruption between the inlet port and the outlet port when the fuel level variation in the fuel tank becomes remarkable. The valve device may be connected to one end of a ventilation pipe of which another end is provided with a charcoal canister communicating with outside air and an intake manifold.
REFERENCES:
patent: 3698160 (1972-10-01), Hunter
patent: 4050471 (1977-09-01), Anhegger
patent: 4095609 (1978-06-01), Martin
Aisin Seiki Kabushiki Kaisha
Nilson Robert G.
Toyota Jidosha & Kabushiki Kaisha
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