公开(公告)号：US10370973B2

公开(公告)日：2019-08-06

申请号：US14725879

申请日：2015-05-29

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Kari Heikurinen ,  Ron Dutton

IPC分类号： F01D5/12 ,  F01D5/14 ,  F04D29/32 ,  F04D29/54 ,  F02C3/04 ,  F04D19/02 ,  F04D29/38

摘要： A compressor airfoil of a gas turbine engine includes a pressure side and a suction side of the airfoil extending downstream from a stagnation point, the suction side including a suction side surface portion within a leading edge region, and a main suction side airfoil surface downstream from the suction side surface portion and extending contiguously therewith. The suction side surface portion having a compound curvature profile which includes at least a leading edge having a first curvature profile and a chamfered surface having a second curvature profile different from the first curvature profile. The chamfered surface being contiguous with and extending immediately downstream from the leading edge. The first curvature profile being curved. The second curvature profile of the chamfered surface being substantially flat and defining a substantially straight-line profile in a cross-section transverse to the span-wise axis of the airfoil.