Blade tip clearance control apparatus

Details Blade tip clearance control apparatus Blade tip clearance control apparatus

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 11/18 (2006.01) F01D 11/24 (2006.01)

Patent

CA 2234862

A blade tip clearance control apparatus (10) comprises a plurality of circumferentially arranged spaced wall members (16) located adjacent the rotor path of a plurality of rotor blades (14). Each wall member (16) is mounted on a carrier (18) attached to an annular casing (22) radially outward thereof. Thermal expansion or contraction of the carrier (18) causes radial movement of the wall members (16). The wall members (16) have at least one fluid passage (20) therein. In operation a flow of fluid passing through the fluid passages (20) causes either thermal expansion or contraction of the wall member (16) to different radial positions.

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