公开(公告)号：US20180128284A1

公开(公告)日：2018-05-10

申请号：US15344638

申请日：2016-11-07

Applicant: United Technologies Corporation

Inventor： Agnieszka M. Wusatowska-Sarnek ,  Sergei F. Burlatsky ,  David Ulrich Furrer ,  J. Michael McQuade

IPC: F04D29/38 ,  F04D29/16 ,  F04D29/52 ,  F04D29/02 ,  F01D11/12 ,  F01D5/28

CPC classification number: F04D29/388 ,  F01D5/20 ,  F01D5/288 ,  F01D11/122 ,  F04D29/023 ,  F04D29/164 ,  F04D29/327 ,  F04D29/526 ,  F05D2220/32 ,  F05D2230/53 ,  F05D2230/90 ,  F05D2240/307 ,  F05D2300/609 ,  F05D2300/611

Abstract: A rotor for a turbomachine is provided which includes a hub; and a plurality of blades extending radially from the hub, the plurality of blades comprising a first subset of blades having first tips and an abrasive coating on the first tips, and a second subset of blades having second tips with no abrasive coating on the second tips, wherein a radius (R2) of the first subset of blades, including thickness of the abrasive coating, is greater than a radius (R1) of the second subset of blades, and wherein a base radius (R) of the first subset of blades, not including thickness of the abrasive coating, is less than the radius (R1) of the second subset of blades.

公开(公告)号：US10400786B2

公开(公告)日：2019-09-03

申请号：US15344638

申请日：2016-11-07

Applicant: United Technologies Corporation

Inventor： Agnieszka M. Wusatowska-Sarnek ,  Sergei F. Burlatsky ,  David Ulrich Furrer ,  J. Michael McQuade

IPC: F04D29/38 ,  F01D5/28 ,  F01D11/12 ,  F04D29/02 ,  F04D29/16 ,  F04D29/52 ,  F01D5/20 ,  F04D29/32

Abstract: A rotor for a turbomachine is provided which includes a hub; and a plurality of blades extending radially from the hub, the plurality of blades comprising a first subset of blades having first tips and an abrasive coating on the first tips, and a second subset of blades having second tips with no abrasive coating on the second tips, wherein a radius (R2) of the first subset of blades, including thickness of the abrasive coating, is greater than a radius (R1) of the second subset of blades, and wherein a base radius (R) of the first subset of blades, not including thickness of the abrasive coating, is less than the radius (R1) of the second subset of blades.