Patent ID: 7854124
Filing Date: 2010-12-21
Classification: F02K

Abstract:
1. A nozzle for a gas turbine engine comprising: a plurality of flaps which may move to provide a desired cross-sectional area for a nozzle outlet; an actuator structure for driving said flaps through a linkage, said actuator structure including at least one actuator member moving the flaps through an intermediate structure; an air supply for supplying pressurized air to a rear surface of said intermediate structure, said pressurized air assisting said actuator member in holding said flap at a desired position, and resisting a force from pressure within said nozzle; a liner ring for being rotated to control the flow of cooling air to an inner periphery of said nozzle, and a valve comprising of an outer ring with valve closures for controlling flow of pressurized air to said rear surface of said intermediate member, said valve being controlled to reduce the flow of air when certain system conditions are sensed, said liner ring rotating with said valve.