Mid turbine frame system for gas turbine engine

Details Mid turbine frame system for gas turbine engine Mid turbine frame system for gas turbine engine

2008-11-28

2011-11-22

Blum, David S (Department: 2813)

Rotary kinetic fluid motors or pumps

Plural runners supported for relative motion or on separate...

Serially spaced in working fluid flow path

C060S796000

Reexamination Certificate

active

08061969

ABSTRACT:
A gas turbine engine mid turbine frame having an inner case supporting at least one bearing and at least three spokes extending radially outwardly to an outer case, the mid turbine frame having an interturbine duct extending through the mid turbine frame, the interturbine duct spaced axially closer to an upstream turbine disc than a bearing supporting structure of the mid turbine frame and mounted axially slidingly relative to the bearing supporting structure to substantially isolate the bearing supporting structure from axial loads, for example such as disc loads incurred in the unlikely event a turbine disc shaft shears within the engine.

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