Fuel float valve
AssigneeHamilton Sundstrand Corporation
InventorWilliam Beeson
Life of this patent
Estimating the term…
Abstract
In one example, a fuel system includes a fuel tank having a wall with an opening. A fuel float valve has a float and a seal plate on opposing ends of a beam. The fuel float valve also includes a fulcrum about which the beam is configured to pivot in response to a change in fuel level. The fuel float valve is movable between unsealed and sealed positions in which the seal plate is respectively unsealed and sealed relative to the opening. The seal plate includes first and second portions. The first portion seals against the wall, and the second portion is movable relative to the first portion in the sealed position from a closed position to an open position with respect to the first portion.
Claims7
A fuel system comprising:
- a fuel tank having a wall with an opening;
- a fuel float valve including a float and a seal plate on opposing ends of a beam, and a fulcrum about which the beam is configured to pivot in response to a changing fuel level, the fuel float valve movable between unsealed and sealed positions in which the seal plate is respectively unsealed and sealed relative to the opening;
- and
- wherein the seal plate includes first and second portions, the first portion sealing against the wall and the second portion movable relative to the first portion in the sealed position from a closed position to an open position with respect to the first portion.
A fuel float valve plate assembly comprising:
- a wall providing an opening;
- a first portion movable relative to the wall between unsealed and sealed positions in which the first portion is respectively unsealed and sealed relative to the opening in response to a fluid level relative to the wall, the first portion including a central support interconnected to an annular portion by radially extending legs circumferentially spaced from one another to provide spaces;
- a second portion configured to provide opened and closed positions relative to the first portion to selectively provide a gap between the first and second portions;
- and
- a biasing member interconnected between the first and second portions to bias the second portion to the closed position, the gap covered by the second portion in the closed position, the spaces unobstructed in the first position to provide the gap.
Dependencies are inferred from the claim text.