Splitter for Air Bleed Manifold

摘要

A splitter for protecting parts of a gas turbine engine is provided. The splitter segregates the flow of hot and cold gases into the air bleed manifold around the high compressor section to reduce maximum temperatures and minimize the temperature gradients of engine parts, especially inner case flanges The splitter divides the air bleed manifold into an annular inner cavity and an outer cavity. The splitter directs relatively cold air from the high compressor bleed ducts into the inner cavity and relatively hot air from the aft hub into the outer cavity, away from the inner case flanges.

主权项

1. A splitter for a gas turbine engine, the gas turbine engine comprising a high pressure compressor section including a plurality of stages of circumferentially arrayed stators and rotating blades, each stator extending radially outward between a rotary disk stack and an inboard surface of an inner case, the inner case being circumferentially segmented into multiple inner case segments joined by inner case flanges, an outer case substantially concentric with the inner case, the outer case and inner case forming an air bleed manifold, the air bleed manifold defining a cavity supplied with cold air from high compressor bleed ducts and hot air from an aft hub, the splitter configured to direct the cold air into an annular inner cavity between the splitter and the inner case and across the inner case flanges, and the hot air into an outer cavity between the splitter and the outer case.