Gas turbine engine exhaust nozzle cooling valve

摘要

A cooling system for a gas turbine engine includes a first structure movable relative to a second structure. The first structure has a cavity. A valve selectively controls fluid flow from a cooling source to the cavity. A valve is configured to move between first and second fluid flow positions in response to movement of the first structure. The first fluid flow position provides a greater amount of cooling fluid from the cooling source to the cavity than in the second fluid flow position.

主权项

1. A cooling system for a gas turbine engine comprising:
a first structure movable relative to a second structure, the first structure having a cavity; a valve selectively controlling fluid flow from a cooling source to the cavity, the valve configured to move between first and second fluid flow positions in response to movement of the first structure, the first fluid flow position providing a greater amount of a cooling fluid from the cooling source to the cavity than in the second fluid flow position; and a nozzle having an exit and including a movable liner and a static liner respectively corresponding to the first and second structures, the movable liner including cooling openings in fluid communication with the cavity.