公开(公告)号：US12071959B1

公开(公告)日：2024-08-27

申请号：US18461705

申请日：2023-09-06

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Hien Duong ,  Christopher Chiang

IPC分类号： F04D29/52 ,  F04D29/32 ,  F02C3/06

CPC分类号： F04D29/526 ,  F04D29/324 ,  F02C3/06 ,  F05D2220/323

摘要： A compressor for an aircraft engine, has: a gaspath extending around a central axis between a radially-inner wall and a radially-outer wall; a rotor having blades circumferentially distributed around the central axis, the blades having airfoils extending from roots to tips along a span and extending from leading edges to trailing edges along a chord, the airfoils extending across the gaspath; grooves defined in an inner face of the radially-outer wall, circumferentially distributed around the central axis, and having groove lengths extending in a first direction having a circumferential component relative to the central axis, the grooves located between the leading edges and the trailing edges of the airfoils; and slots defined in the inner face of the radially-outer wall, circumferentially distributed around the central axis, and having slot lengths extending in a second direction having an axial component relative to the central axis, the slots projecting from the grooves.