Steven R Porter

US Patent:

20160123166, May 5, 2016

Filed:

Jun 25, 2014

Appl. No.:

14/890496

Inventors:

- Hartford CT, US
Karl A. Mentz - Medford MA, US
Richard N. Allen - West Hartford CT, US
Steven D. Porter - Wethersfield CT, US
Renee J. Jurek - Colchester CT, US
Paul K. Sanchez - Wellington FL, US
Sandra S. Pinero - Middletown CT, US

International Classification:

F01D 9/04
F01D 25/24
F01D 5/02

Abstract:

An airfoil extends between radially inner and radially outer platforms. The airfoil extends between a leading edge and a trailing edge, and merges into facing surfaces of the radially inner and outer platforms. A variable fillet merges a facing surface of one of the radially inner and outer platforms into a wall of the airfoil. The variable fillet has a length extending away from a surface of the airfoil and a height extending away from the facing surface of at least one of the radially inner and outer platforms outwardly on to the airfoil. The variable fillet has a greater length at one of the leading edge and the trailing edge. A spaced portion has a shorter length at locations spaced from at least one of the leading and trailing edges. A mid-turbine frame and a gas turbine engine are also disclosed.