Cascaded air supply for gas turbine cooling

Details Cascaded air supply for gas turbine cooling Cascaded air supply for gas turbine cooling

F - Mech Eng,Light,Heat,Weapons

02

C

60/185, 170/68

F02C 7/12 (2006.01) F01D 5/08 (2006.01)

Patent

CA 1230827

ABSTRACT OF THE DISCLOSURE First stage turbine cooling air leaking through the torque tube seal 32 and in the prior art substantially all passing through the dynamic seal 40 to block blade path gas from passing into the rotor disc area, is accord- ing to the invention diverted in large part through the axial passage 52 by virtue of a metering opening 72 being provided in the downstream side plate, so that the diverted cool air is available to the second stage disc cavity for leakage and cooling.

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