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US 10,967,733 B2Granted
Fuel shutoff valve
AssigneeKyosan Denki Co., Ltd.
InventorAkinari Sugiyama
Life of this patent
Estimating the term…
Abstract
A fuel shutoff valve includes a valve, a float, and an auxiliary member. The valve is configured to open or close an air passage of a fuel tank. The float floats on fuel and moves in a valve closing direction to close the valve, or in a valve opening direction opposite to the valve closing direction to open the valve. The auxiliary member has a predetermined weight, and abuts on the float to apply a weight on the float in the valve opening direction, or separating from the float not to apply the weight on the float in the valve closing direction.
Claims10
A fuel shutoff valve comprising:
- a valve configured to open or close an air passage of a fuel tank;
- a float floating on fuel and moving in a valve closing direction to close the valve, or moving in a valve opening direction opposite to the valve closing direction to open the valve;
- and
- an auxiliary member having a predetermined weight, the auxiliary member abutting on the float to apply a weight on the float in the valve opening direction, or separating from the float not to apply the weight on the float in the valve closing direction, wherein
- the float has
- an outermost diameter portion, and
- an inner diameter portion smaller than the outermost diameter portion in diameter,
- the auxiliary member is surrounding the outermost diameter portion of the float in a radial direction, and
- the auxiliary member is provided with the valve and the float to separate from the float and abut on the valve to apply the weight on the valve in the valve closing direction.
6 more elements
A fuel shutoff valve comprising:
- a valve configured to open or close an air passage of a fuel tank;
- a float floating on fuel and moving in a valve closing direction to close the valve, or moving in a valve opening direction opposite to the valve closing direction to open the valve;
- and
- an auxiliary member having a predetermined weight, the auxiliary member abutting on the float to apply a weight on the float in the valve opening direction, or separating from the float not to apply the weight on the float in the valve closing direction, wherein
- the auxiliary member is surrounding an outermost side of the float in a radial direction,
- the auxiliary member is provided with the valve and the float to separate from the float and abut on the valve to apply the weight on the valve in the valve closing direction,
- the valve has
- a housing defining the air passage and a main valve seat fixed on the air passage, and
- a main valve body that is movable to be seated on the main valve seat, and
- the auxiliary member has a stopper surface configured to abut on the housing to restrict a deformation of the main valve body.
7 more elements
Dependencies are inferred from the claim text.