公开(公告)号：EP3126638A4

公开(公告)日：2017-04-12

申请号：EP15774355

申请日：2015-03-30

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BILLINGS SCOTT C ,  GOTTSCHALK MICHAEL K ,  OWEN WILLIAM D ,  GALLAGHER EDWARD J ,  WHITLOW DARRYL ,  CHUANG SUE-LI ,  SADEGHI MANI

IPC: F01D5/14

CPC classification number: F04D29/384 ,  F01D5/141 ,  F02C3/04 ,  F02C7/36 ,  F02K3/06 ,  F05D2220/36 ,  F05D2240/35 ,  F05D2250/70 ,  Y02T50/672 ,  Y02T50/673

Abstract: In one exemplary embodiment, an airfoil for a turbine engine includes an airfoil that has pressure and suction sides and extends in a radial direction from a 0% span position at an inner flow path location to a 100% span position at an airfoil tip. The airfoil has a curve that corresponds to a relationship between a leading edge dihedral and a span position. The leading edge dihedral has a portion of the curve with a change in dihedral in the range of 90% to 100% span position of greater than 10°. A positive dihedral corresponds to suction side-leaning. A negative dihedral corresponds to pressure side-leaning.