Tip clearance control apparatus and method

Details Tip clearance control apparatus and method Tip clearance control apparatus and method

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 7/00 (2006.01) F01D 11/20 (2006.01) F01D 11/24 (2006.01) F01D 25/16 (2006.01)

Patent

CA 2062929

ABSTRACT OF THE DISCLOSURE In a gas turbine engine, conduit delivers pressurized cooling air to a selected group of hollow struts at a temperature sufficient to induce thermal contraction of the selected group of hollow struts, thereby opposing a downward shift in the rotor axis during high power engine operation, and maintaining a circumferentially uniform tip clearance. Air baffles disposed in the cooled struts ensure radially uniform thermal contraction and efficient heat transfer.

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