Fill limit vent valve assembly

Details Fill limit vent valve assembly Fill limit vent valve assembly

2006-12-12

2006-12-12

Maust, Timothy L. (Department: 3751)

Fluent material handling, with receiver or receiver coacting mea

Automatic control of flow cutoff or diversion

Level or overflow responsive

C141S044000, C141S046000, C141S059000, C141S303000, C137S043000, C137S202000

Reexamination Certificate

active

07147017

ABSTRACT:
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.

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