公开(公告)号：US10513946B2

公开(公告)日：2019-12-24

申请号：US15592586

申请日：2017-05-11

Applicant: ROLLS-ROYCE PLC

Inventor： Matthew Baird ,  Adriano Pulisciano ,  Graham Watson

IPC: F01D21/00 ,  F04D27/00 ,  G01N21/85 ,  F02K3/06 ,  G01N21/53 ,  F01D21/14 ,  F02C7/04 ,  G01N21/47 ,  G01N21/84

Abstract: A condensation irradiation system is disclosed comprising an electromagnetic radiation emitter mounted on a locating structure, the locating structure being arranged in use to position the radiation emitter so as radiation emitted therefrom travels through a condensation detection region adjacent an upstream side of a gas turbine engine fan.

公开(公告)号：US09905124B2

公开(公告)日：2018-02-27

申请号：US14730990

申请日：2015-06-04

Applicant: ROLLS-ROYCE PLC

Inventor： Huw L Edwards ,  Max C Y Ong ,  Haydn A Thompson ,  Graham Watson

IPC: F01B25/00 ,  G08C17/02 ,  H04B13/00 ,  G01N22/00 ,  H01P3/12 ,  B63H5/125

CPC classification number: G08C17/02 ,  B63H5/125 ,  B63H2005/1256 ,  G01N22/00 ,  H01P3/122 ,  H04B13/00

Abstract: There is provided a wireless communication system for a marine propulsor, comprising: a transmitter; a receiver; and a waveguide, arranged to convey an electromagnetic data signal between the transmitter and the receiver; wherein the waveguide comprises an electrically non-conductive solid or liquid medium for propagating the electromagnetic data signal.

公开(公告)号：US11513035B2

公开(公告)日：2022-11-29

申请号：US17197618

申请日：2021-03-10

Applicant: Rolls-Royce plc

Inventor： Graham Watson ,  Steven D Massie

IPC: G01M15/14 ,  F02C3/04 ,  G01H1/00 ,  G01M5/00 ,  G01M7/00 ,  G01N29/14 ,  G01N29/42 ,  G01N29/46

Abstract: An apparatus for detecting a transient event in an operating machine, the apparatus comprising: a controller configured to control performance of the following steps: a measurement step comprising measuring a periodic signal from a machine; a processing step comprising synchronously processing the periodic signal to track the primary frequency; a filtering step comprising removing the primary periodic component and its harmonics from the periodic signal to yield a filtered dataset; an integration step comprising integrating the filtered dataset over the remaining frequencies to yield an integrated dataset representing the periodic energy at frequencies other than the primary frequency and its harmonics; an analysis step comprising identifying a short-term transient in the integrated dataset to identify a transient disruption in the operation of the machine.