公开(公告)号：JP2003161109A

公开(公告)日：2003-06-06

申请号：JP2002252225

申请日：2002-08-30

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SANDERS STUART A ,  STACKHOUSE KIRK D ,  O'CONNOR LISA V

IPC: F01D11/02 ,  F01D11/08 ,  F01D11/12 ,  F02C7/00 ,  F02C7/28 ,  F04D29/08 ,  F16J15/16 ,  F16J15/40

Abstract: PROBLEM TO BE SOLVED: To provide an air seal for a gas turbine engine which improves a durability especially at high temperatures. SOLUTION: An air seal (7) includes a seal substrate and an abradable seal layer on the seal substrate. The abradable seal layer is formed by a high density polyimid foaming material, or preferably a thermomechanically high density foaming material. The air seal (7) is bonded to a stationary engine member such as a stator box (6) or a case (3). COPYRIGHT: (C)2003,JPO

公开(公告)号：DE60204192D1

公开(公告)日：2005-06-23

申请号：DE60204192

申请日：2002-08-01

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SANDERS STUART A ,  STACKHOUSE KIRK D ,  O'CONNOR LISA V

IPC: F01D11/02 ,  F01D11/08 ,  F01D11/12 ,  F02C7/00 ,  F02C7/28 ,  F04D29/08 ,  F16J15/16 ,  F16J15/40 ,  C23C4/04

Abstract: An air seal for use in a gas turbine engine provides improved durability, particularly at higher temperatures. The seal includes a seal substrate and an abradable seal layer on the substrate. The abradable seal layer is composed of a densified polyimide foam, preferably a thermomechanically densified foam. The seal is bonded to a stationary engine component such as a stator box or a case.

公开(公告)号：AT295931T

公开(公告)日：2005-06-15

申请号：AT02255377

申请日：2002-08-01

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SANDERS STUART A ,  STACKHOUSE KIRK D ,  O'CONNOR LISA V

IPC: F01D11/02 ,  F01D11/08 ,  F01D11/12 ,  F02C7/00 ,  F02C7/28 ,  F04D29/08 ,  F16J15/16 ,  F16J15/40 ,  C23C4/04

Abstract: An air seal for use in a gas turbine engine provides improved durability, particularly at higher temperatures. The seal includes a seal substrate and an abradable seal layer on the substrate. The abradable seal layer is composed of a densified polyimide foam, preferably a thermomechanically densified foam. The seal is bonded to a stationary engine component such as a stator box or a case.