公开(公告)号：US11009039B2

公开(公告)日：2021-05-18

申请号：US16226694

申请日：2018-12-20

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Thomas Veitch ,  Tibor Urac ,  Tyler Richardson

IPC: F01D25/24 ,  F04D29/52 ,  F04D29/64 ,  F04D29/28 ,  F01D25/16

Abstract: A gas turbine engine casing apparatus includes annular first and second annular cases connected by a spigot joint. The spigot joint includes an annular projection of the first annular case fitted into an annular recess of the second annular case. A plurality of circumferentially spaced apart scallops are formed on one of surfaces of the annular projection or of the annular recess, and are located in selective circumferential locations adjacent respective enhanced stiff areas of the first and second annular cases.

公开(公告)号：US10190598B2

公开(公告)日：2019-01-29

申请号：US15046568

申请日：2016-02-18

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Thomas Veitch ,  Tibor Urac ,  Tyler Richardson

IPC: F01D25/24 ,  F04D29/52 ,  F04D29/28 ,  F04D29/64 ,  F01D25/16

Abstract: A gas turbine engine casing apparatus includes annular first and second annular cases connected by a spigot joint. The spigot joint includes an annular projection of the first annular case fitted into an annular recess of the second annular case. A plurality of circumferentially spaced apart scallops are formed on one of surfaces of the annular projection or of the annular recess, and are located in selective circumferential locations adjacent respective enhanced stiff areas of the first and second annular cases.