초록 ▼

A turbine engine having improved high pressure turbine cooling is disclosed. In the engine, relatively cool intermediate pressure (P2x) air is diverted from a region of a compressor section and over a high work turbine blade at a lower static pressure than the diverted air to cool the blade. Advanta

A turbine engine having improved high pressure turbine cooling is disclosed. In the engine, relatively cool intermediate pressure (P2x) air is diverted from a region of a compressor section and over a high work turbine blade at a lower static pressure than the diverted air to cool the blade. Advantageously, as the diverted air is relatively cool, use of a conventional TOBI nozzle may be eliminated. Similarly, showerheads on the blade may be eliminated. As well, the diverted air may conveniently be used to seal a rear bearing compartment within the engine.

대표청구항 ▼

[ What is claimed is:] [1.]1. A turbine engine comprising:a compressor section to compress intake air into high pressure air and intermediate pressure air, said intermediate pressure air having a lower pressure and temperature than said high pressure air and formed upstream of said high pressure air

[ What is claimed is:] [1.]1. A turbine engine comprising:a compressor section to compress intake air into high pressure air and intermediate pressure air, said intermediate pressure air having a lower pressure and temperature than said high pressure air and formed upstream of said high pressure air in said compressor;a combustion section in flow communication with said compressor section, to combust fuel with compressed air;a turbine section in flow communication with combustion gases from said combustion section, said turbine section comprising a rotating turbine blade wherein static pressure at said turbine blade is lower than the pressure of said intermediate pressure air; anda conduit having an inlet in flow communication with said intermediate pressure air and an outlet in flow communication with said turbine blade, thereby guiding said intermediate pressure air to said turbine blade to cool said turbine blade.