F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 25/16 (2006.01) F01D 9/06 (2006.01) F01D 25/18 (2006.01) F01D 25/24 (2006.01) F02C 7/06 (2006.01)
Patent
CA 2049181
A turbine support for reacting structural loads from a rotor bearing cage to a case of a gas turbine engine. The turbine support includes a homogeneous main casting and a rotor bearing cage. The main casting has concentrically arranged inner, intermediate and outer walls. The bearing cage is radially inboard and a rigid appendage of the inner wall. The inner and intermediate walls define therebetween a longitudinal segment of the annular hot gas flow path of the engine. The outer wall is bolted to the engine case. The inner wall is connected to the intermediate wall by a plurality of generally radially oriented, angularly separated inner load bearing struts of the main casting. The outer wall is connected to the intermediate wall by a plurality of radially oriented, angularly separated outer load bearing struts of the main casting. The outer struts are offset from the inner struts so that the portions of the intermediate wall between adjacent pairs of inner and outer struts define cantilever springs which accommodate relative thermal growth in the turbine support occasioned by temperature gradients to which the turbine support is exposed.
General Motors Corporation
Gowling Lafleur Henderson Llp
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