Fuel Cap with Duck Bill Valve
AssigneeKohler Co.
InventorsGary Stenz, Mark Huibregtse, Brian Hartwig
Life of this patent
Estimating the term…
Abstract
A valve member provides for the flow of vapors from a fuel tank of an internal combustion engine to escape the fuel tank. The valve member may include a valve and a boss or spacer. The valve is configured to selectively control the flow of vapor from the fuel tank. The boss or spacer is positioned in a predetermined relationship to the valve, and the boss or spacer prevents a deformation of the valve from disrupting the selectively controlled flow of vapor from the fuel tank.
Claims20
A valve member comprising:
- a first valve configured to selectively control a flow of vapor from a fuel tank;
- and
- a boss positioned in a predetermined relationship to the first valve,
- wherein the boss prevents a deformation of the first valve from disrupting the selectively controlled flow of vapor from the fuel tank.
A fuel cap comprising:
- an evaporative emission reduction device configured to reduce escape of vapors from a fuel tank;
- a valve configured to selectively control the escape of vapors from the fuel tank;
- and
- a spacer positioned in a predetermined relationship to the valve,
- wherein the spacer prevents deformation in the valve.
A method of manufacturing a fuel cap including an evaporative emission reduction device and a valve, the method comprising:
- providing an evaporative emission reduction device to a fuel cap;
- mounting a deformation prevention member on a valve member;
- aligning the valve member to the evaporative emission reduction device with a valve retainer;
- and
- securing the deformation prevention member, the valve retainer, and the evaporative emission reduction device to the fuel cap with a retainer sleeve.
Dependencies are inferred from the claim text.