公开(公告)号：US10934860B2

公开(公告)日：2021-03-02

申请号：US15602436

申请日：2017-05-23

Applicant: ROLLS-ROYCE plc

Inventor： Grant J. Gibson ,  Matthew Hancock ,  Lloyd Pallett

IPC: F01D11/12 ,  F01D5/28 ,  F01D5/02 ,  F01D5/20 ,  C25D7/00 ,  C25D15/00 ,  C25D5/12

Abstract: A gas turbine engine component made of a nickel-based superalloy, the gas turbine engine component comprising a protective coating. The protective coating includes an inner diffusion barrier layer including any one or any combination of elements selected from the group consisting of platinum, palladium, tantalum, tungsten, hafnium and iridium, and an outer layer of hard material formed of hard particles embedded in a matrix.

公开(公告)号：US10465536B2

公开(公告)日：2019-11-05

申请号：US15136308

申请日：2016-04-22

Applicant: ROLLS-ROYCE plc

Inventor： Andrew Hewitt ,  Matthew Hancock

IPC: F01D5/28 ,  F01D5/20 ,  F01D11/12 ,  F01D5/14

Abstract: A gas turbine engine component includes a rotor blade having a squealer tip comprising a projecting lip, the rotor blade further having a raised rim running along both edges of each projecting kip of the squealer tip, and an abrasive coating formed of hard particles embedded in a retaining matrix covering a tip region of the rotor blade within an area bounded by the raised rim. The raised rim has a height of between 50% and 75% of a mean diameter of the hard particles.

公开(公告)号：US10019808B2

公开(公告)日：2018-07-10

申请号：US15332349

申请日：2016-10-24

Applicant: ROLLS-ROYCE PLC

Inventor： Andrew Hewitt ,  Matthew Hancock

IPC: G06T7/40 ,  G01B11/30 ,  G06T7/00

CPC classification number: G06T7/40 ,  G01B11/30 ,  G06T7/0004 ,  G06T2207/10016 ,  G06T2207/30164

Abstract: A method of inspecting an object, the method comprising: receiving a first image of a first part of a first surface of the object from a camera arrangement; controlling relative movement between the camera arrangement and the object through a predetermined distance; receiving a second image of a second part of the first surface of the object from the camera arrangement, the second part being different to the first part; generating a third image using at least the first image and the second image; and determining a parameter associated with an abrasive surface coating on the object using the third image.