Bleed valves for gas turbine engines
AssigneeHamilton Sundstrand Corporation
InventorsAugust M. Coretto, Francis P. Marocchini, Aaron F. Rickis, Robert Goodman
Life of this patent
Estimating the term…
Abstract
A bleed valve for a gas turbine engine compressor has a valve body and a flapper. The valve body defines a flow path and includes a flapper seat. The flow path extends through the valve body. The flapper is pivotally connected to the valve body and is movable between a closed position and an open position. In the closed position the flapper seats against the flapper seat and blocks the flow path. In the open position the flapper is angled towards the valve body inlet such that fluid moving through the valve body exerts force on the flapper, urging the flapper towards the closed position.
Claims15
A bleed valve, comprising:
- a valve body defining a flow path and a flapper seat;
- and
- a flapper pivotally connected to the valve body and movable relative to the flapper seat between open and closed positions, wherein the flapper seats against the flapper seat and blocks the flow path in the closed position, wherein the flapper is angled toward an inlet of the valve body in the open position such that a pressure differential across the flapper urges the flapper towards the closed position.
A gas turbine engine, comprising:
- a compressor section with a main gas path;
- a bleed valve connected to the compressor section and in selective fluid communication with the main gas path, including:
- a valve body defining a flow path and a flapper seat;
- a flapper pivotally connected to the valve body and movable relative to the flapper seat between open and closed positions;
- and
- a biasing member operatively connected between the valve body and the flapper and having a biasing force urging the flapper toward the open position.
Dependencies are inferred from the claim text.