Alfmeier Corporation

Ralf Leonhardt

Scott C Gaynor

David Eisenbacher

Markus T Farrenkopf

Wade V Williams

Robert Petroskie

A vent valve assembly utilizes a lever arrangement that opens a vapor discharge opening such as during normal operation of a motor vehicle to permit fuel vapor venting and that seals the vapor discharge opening such as when the motor vehicle is inclined to prevent liquid fuel from discharging through the vapor discharge opening.

Vent valve assembly with lever arrangement

A fill limit vent valve assembly includes a cover assembly, a valve assembly and a fill control system. The fill control system has a primary fuel control window, a secondary fuel control window, a first conduit and a second conduit, the primary and secondary fuel control windows in respective communication with the first and second conduits, the first conduit extending a first distance along the housing and terminating in a first vent aperture, the second conduit extending a second distance along the housing and terminating in a second vent aperture spaced apart from the first vent aperture, the primary fuel control window and the first vent aperture configured to facilitate fuel filling shut-off in a first fuel condition, the secondary fuel control window configured to shut-off fuel filling in a second fuel condition, the second vent aperture configured to provide a fixed amount of fuel vapor venting from the float chamber between the first and second fuel conditions to control entry of a set quantity of a liquid fuel into the fuel tank after the first fuel condition and before the second fuel condition.

Fill limit vent valve assembly

A valve assembly for attachment in an aperture of a fuel tank wall includes a cap member with a nozzle, a carrier stage, a float stage, and a float housing. The carrier stage has a carrier carrying a sealing element with a relatively larger orifice opposing a relatively smaller orifice. The float stage includes a pivot pin and a float defining a stem. The pivot pin is movably located on the stem with the sealing element located apart from the float. The float contacts a portion of the sealing element during a refilling condition, and the sealing element seals the nozzle to prevent overfilling the fuel tank. The orifices permit the valve assembly to reopen in stages.

Fill limit vent valve

A valve assembly for admitting a tube or fuel into a vehicle fuel tank is disclosed. The valve assembly has a fixed housing with an inlet, an outlet, a middle section and an inner surface with an opening. At least one projection depends from the inner surface between the inlet and the outlet. The projection deflects the tube toward and through the opening. A piston element, which is slidably mounted to the housing, is normally urged in a direction to close the outlet and the opening until the tube or fuel urges the piston element in an opposite direction.

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Mauldin, SC, United States of America

Ralf Leonhardt