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.
申请公布号
EP3022400(A1)
申请公布日期
2016.05.25
申请号
EP20140825846
申请日期
2014.06.25
申请人
UNITED TECHNOLOGIES CORPORATION
发明人
OLS, JOHN T.;MENTZ, KARL A.;ALLEN, RICHARD N.;PORTER, STEVEN D.;JUREK, RENEE J.;SANCHEZ, PAUL K.;PINERO, SANDRA S.