公开(公告)号：DE3663974D1

公开(公告)日：1989-07-20

申请号：DE3663974

申请日：1986-04-24

Applicant: UNITED TECHNOLOGIES CORP

Inventor： ROBBINS DONALD A ,  KNOTEK WILLIAM R

IPC: F01D5/02 ,  F01D5/06

公开(公告)号：FR2640688A1

公开(公告)日：1990-06-22

申请号：FR8916494

申请日：1989-12-13

Applicant: UNITED TECHNOLOGIES CORP

Inventor： VINE RAYMOND W ,  ROBBINS DONALD A ,  NORDSTROM DONALD G ,  GOODSTEIN MARK B

IPC: C23C4/02 ,  F01D11/12

Abstract: An abradable coating is described for interaction with a abrasive gas turbine engine component to provide sealing. The abradable coating comprises yttria stabilized zirconia with intentional porosity which is applied by plasma spraying to a MCrAlY bond coat which in turn rest on a superalloy substrate. The coating system is applied by plasma spraying. The coating system is adapted to interact with an abrasive coated abrasive treated gas turbine engine component.

公开(公告)号：DE3661280D1

公开(公告)日：1988-12-29

申请号：DE3661280

申请日：1986-04-24

Applicant: UNITED TECHNOLOGIES CORP

Inventor： ROBBINS DONALD A

IPC: F01D5/06

公开(公告)号：CA1154687A

公开(公告)日：1983-10-04

申请号：CA376038

申请日：1981-04-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： ROBBINS DONALD A

IPC: F01D9/02 ,  F01D11/00 ,  F01D11/08 ,  F01D11/10 ,  F01D25/12 ,  F02C7/28

Abstract: An annular ring for an axial flow gas turbine engine disposed inwardly of an array of stator vanes and between an annular flow path for hot working medium gases and an annular flow path for cooling air is disclosed. The ring abuttingly engages the array of stator vanes in the radial direction to provide radial support and abuttingly engages the array of stator vanes and an outer air seal block the intermixing of gases from the working medium flow path and gases from the cooling air flow path. m e annular ring includes a first annular section and a second annular section. The first annular section has an axial width to radial height ratio greater than one and the second annular section has an axial width to radial height ratio less than one to adapt the ring for axial flexibility and radial stiffness and to enable the ring to accommodate growth and axial growth between the outer air seal and the array of stator vanes while remaining within the elastic limit.