公开(公告)号：US20180231014A1

公开(公告)日：2018-08-16

申请号：US15430783

申请日：2017-02-13

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Agnieszka M. Wusatowska-Sarnek ,  Thomas D. Kasprow ,  David Ulrich Furrer ,  Sergei F. Burlatsky

IPC: F04D29/16 ,  F04D29/52 ,  C23C24/04 ,  C23C4/12

CPC classification number: F04D29/164 ,  C23C4/12 ,  C23C24/04 ,  C23C28/022 ,  C23C28/027 ,  C23C28/324 ,  C23C28/3455 ,  C23C28/42 ,  F01D5/288 ,  F01D11/122 ,  F04D29/526 ,  F05D2230/31

Abstract: A multilayer abradable coating includes at least one first abradable layer; and at least one second abradable layer, wherein the first abradable layer and the second abradable layer have different properties related to erosion resistance.

公开(公告)号：US11209010B2

公开(公告)日：2021-12-28

申请号：US15430783

申请日：2017-02-13

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Agnieszka M. Wusatowska-Sarnek ,  Thomas D. Kasprow ,  David Ulrich Furrer ,  Sergei F. Burlatsky

IPC: C23C28/00 ,  F04D29/16 ,  C23C28/02 ,  F01D5/28 ,  F01D11/12 ,  C23C4/12 ,  C23C24/04 ,  F04D29/52

Abstract: A multilayer abradable coating includes at least one first abradable layer; and at least one second abradable layer, wherein the first abradable layer and the second abradable layer have different properties related to erosion resistance.

公开(公告)号：US09939247B1

公开(公告)日：2018-04-10

申请号：US15368963

申请日：2016-12-05

Applicant: United Technologies Corporation

Inventor： Sameh Dardona ,  Paul Sheedy ,  Marcin Piech ,  Daniel Anthony Grande ,  Wayde R. Schmidt ,  Cagatay Tokgoz ,  Thomas D. Kasprow ,  Lesia V. Protsailo

IPC: G01M15/14 ,  G01B7/26

CPC classification number: G01B7/26 ,  G01B7/06 ,  G01M15/14

Abstract: A wear monitoring system for measuring incursion depth into an abradable coating includes a layer of abradable coating including a depth. At least one measurement circuit includes a plurality of conductive leads disposed within the abradable coating. The conductive leads are spaced radially apart within a common radial plane corresponding to the depth of the abradable coating. A plurality of resistor elements corresponds with the plurality of conductive leads. Each of the plurality of resistor elements are in electrical communication with one of the plurality of conductive leads disposed within the common radial plane of the corresponding one of the plurality of conductive leads. An electrical characteristic of the circuit varies responsive to cutting of one or more of the plurality of conductive leads by a passing airfoil. A gas turbine engine and method are also disclosed.