公开(公告)号：EP3114328A4

公开(公告)日：2017-12-06

申请号：EP15792548

申请日：2015-02-19

Applicant: UNITED TECHNOLOGIES CORP

Inventor： NIGGEMEIER CHRIS ,  YUAN LIFANG

IPC: F01D25/24 ,  B23C3/12 ,  F01D21/00 ,  F02C3/04 ,  F02C7/00 ,  F02C7/20 ,  F23M11/04 ,  F23R3/00

CPC classification number: F02C7/20 ,  B23C3/12 ,  F01D21/003 ,  F01D25/24 ,  F02C3/04 ,  F05D2230/53 ,  F05D2230/72 ,  F05D2250/11 ,  F05D2250/12 ,  F05D2250/121 ,  F05D2250/131 ,  F05D2260/941 ,  F23M11/04 ,  F23R3/002 ,  Y02T50/671

Abstract: A case for a gas turbine engine includes a case wall and a boss that extends from the case wall. The boss includes a perimeter step.