Turbine blade outer end attachment structure

Details Turbine blade outer end attachment structure Turbine blade outer end attachment structure

F - Mech Eng,Light,Heat,Weapons

01

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170/81

F01D 5/32 (2006.01) F01D 5/03 (2006.01) F01D 5/30 (2006.01) F01D 9/04 (2006.01)

Patent

CA 2034456

13DV-9486 ABSTRACT A gas turbine engine having an outer annular turbine rotor, which is counterrotatable relative to an inner annular turbine rotor, includes attachment structure for attaching turbine blades in circumferential rows to the inner rotor. The attachment structure includes first and second male members spaced axially along and circumferentially extending about the rotor, and first and second grooves spaced axially along and extending circumferentially about the rotor being defined by flanges attached to the rotor. Each male member has a first portion attached to an end of a turbine blade and extending therefrom in a radial direction. The first male member has a second portion attached to its first portion and extending therefrom in an axial direction to define the first male member with an overall hook-like cross-sectional configuration. The first groove is cross-sectionally shaped for receiving in mated relation the second portion of the first male member. The second groove is cross-sectionally shaped for receiving in mated relation in the second groove a lock segment of the locking assembly and the first portion of the second male member to lock the male members in the respective grooves and thereby lock the turbine blade against radial and axial movements relative to the rotor.

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