Tapered enlargement metering inlet channel for a shroud...

Details Tapered enlargement metering inlet channel for a shroud... Tapered enlargement metering inlet channel for a shroud...

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 5/08 (2006.01) F01D 11/08 (2006.01) F01D 25/12 (2006.01)

Patent

CA 2065639

TAPERED ENLARGEMENT METERING INLET CHANNEL FOR A SHROUD COOLING ASSEMBLY OF GAS TURBINE ENGINES ABSTRACT OF THE INVENTION To cool the shroud in the high pressure turbine section of a gas turbine engine, high pressure cooling air is directed in metered flow through taper enlarged metering holes to baffle plenums and thence through baffle perforations to impingement cool the shroud rails and back surface. The baffle perforations and the convection cooling passages are interactively located to achieve maximum cooling benefit and highly efficient cooling air utilization.

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