Patent ID: 8464764
Filing Date: 2013-06-18
Classification: B60K,Y10T

Abstract:
1. A fuel system ullage float valve assembly for a fuel tank and fuel fill line, located in proximity to the intersection of the fuel fill line entering the top section of a fuel tank, comprising: a cage enclosure, said cage enclosure including an upper collar, a plurality of leg members, and a base member; said upper collar for nesting engagement within said fuel fill line, said upper collar partially protruding into, and being secured within, said fuel fill line; said upper collar further including an external flange, said external flange abutting said fuel fill line and limiting the insertion of said upper collar into said fuel fill line; said plurality of leg members extending downwardly from said upper collar and into said fuel tank; said base member being secured to said leg members; a float chamber, said float chamber having a generally cylindrical base section and a converging generally conical upper section; said upper collar flange further including a lower angled internal edge for receiving and complementing said conical upper section; said float chamber being buoyant and housed within said cage enclosure, and moveable therein; and wherein, during a fueling process as fuel fills said fuel tank reaching said ullage float assembly, said float chamber rises within said cage enclosure to reach sealing engagement with said upper collar causing termination of said fueling process.