Compressor bleed system

Details Compressor bleed system Compressor bleed system

F - Mech Eng,Light,Heat,Weapons

02

K

60/133

F02K 99/00 (2009.01) F02C 7/18 (2006.01) F04D 27/02 (2006.01)

Patent

CA 1050775

COMPRESSOR BLEED SYSTEM ABSTRACT OF THE DISCLOSURE Methods and apparatus for flowing cooling air from the compressor section to the turbine section of a gas turbine engine are disclosed. Cooling air from the compressor is flowed radially inward through the compressor drum cavity and thence axially rearward along the rotor shaft to the turbine. Vortex pressure losses in the drum cavity are diminished to enable effective utilization of a lower pressure, lower temperature cooling air source. The use of air from the lower pressure, lower temperature source improves the overall engine operating efficiency while maintaining turbine cooling rates which are consonant with durable operation of the engine. -1-

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