公开(公告)号：US20200098492A1

公开(公告)日：2020-03-26

申请号：US16558640

申请日：2019-09-03

Applicant: ROLLS-ROYCE plc

Inventor： Alexis LAMBOURNE ,  Alexander C. SMITH ,  Jameel B. KHAN

IPC: H01B13/00 ,  H02K3/50 ,  H01B19/00 ,  H02K15/00 ,  H02K3/34

Abstract: A method of manufacturing a winding assembly for an electrical machine, the method comprising: forming, by three-dimensional, 3D, printing, an electrically insulating body comprising a channel defining a winding path, the channel having an inlet and an outlet; heating the electrically insulating body to a temperature above the melting point of an electrically conducting material; flowing the electrically conducting material through the inlet to the outlet to fill the channel; and cooling the electrically insulating body to solidify the electrically conducting material within the channel, thereby forming said winding assembly.

公开(公告)号：US20160340051A1

公开(公告)日：2016-11-24

申请号：US15136074

申请日：2016-04-22

Applicant: ROLLS-ROYCE PLC

Inventor： Huw L. EDWARDS ,  Alexander C. SMITH ,  Judith M. APSLEY ,  Charalampos MANOLOPOULOS

IPC: B64D27/02 ,  B64D35/02 ,  B64C11/30

CPC classification number: B64D27/02 ,  B64D27/24 ,  B64D35/02 ,  B64D2027/026 ,  B64D2221/00 ,  Y02T50/44 ,  Y02T50/64

Abstract: An electrical network for an aircraft. The aircraft includes at least one variable pitch propulsor. The electrical network includes a wound field synchronous AC electrical generator having a wound rotor driven by an internal combustion engine. The network further includes a voltage regulator configured to regulate output voltage of the electrical generator by regulating rotor winding magnetic field strength, and a synchronous AC drive motor coupled to a respective variable pitch propulsor and provided with power from the output of the electrical generator.

Abstract translation: 飞机电气网络。 飞行器包括至少一个可变俯仰推进器。 电网包括具有由内燃机驱动的绕线转子的绕线场同步交流发电机。 网络还包括电压调节器，其被配置为通过调节转子绕组磁场强度来调节发电机的输出电压，以及耦合到相应的可变间距推进器并且从发电机的输出端提供电力的同步AC驱动电动机。

公开(公告)号：US20200227956A1

公开(公告)日：2020-07-16

申请号：US16733263

申请日：2020-01-03

Applicant: ROLLS-ROYCE plc

Inventor： Ellis F H CHONG ,  Alexander C. SMITH ,  Yuanpeng ZHOU

IPC: H02K1/14 ,  H02K1/24 ,  H02K19/24

Abstract: An electromechanical system comprising: a rotor comprising a plurality of teeth spaced about a circumference of the rotor, wherein the teeth of the rotor are equally spaced about the rotor according to a tooth spacing angle, and are skewed in an axial direction such that the circumferential positions of the teeth of the rotor vary along the axial length of the rotor, and first and second stator segments, each extending partway about the rotor and comprising a field winding and poles arranged to magnetically interact with the teeth of the rotor such that an alternating current (AC) back-emf is induced in the field winding upon rotation of the rotor. The poles of the first stator segment are angularly displaced about the rotor from the poles of the second stator segment such that the back-emf induced in the field winding of the first stator segment is phase shifted with respect to the back-emf induced in the field winding of the second stator segment.

公开(公告)号：US20170040881A1

公开(公告)日：2017-02-09

申请号：US15204443

申请日：2016-07-07

Applicant: ROLLS-ROYCE plc

Inventor： Stephen WILLIAMSON ,  Alexander C. SMITH ,  John J A CULLEN ,  Ellis F H CHONG

IPC: H02K55/00 ,  H02K3/28

Abstract: An electrical machine including a rotor and a stator, at least one of the rotor and stator being provided with superconducting first electrical windings; and a set of one or more screen electrical windings, provided in the form of one or more further superconducting electrical windings, arranged around and radially outward of the first electrical windings; wherein the set of screen electrical windings is arranged to be supplied with an electrical current for generating a magnetic field of suitable magnitude and phase to reduce the magnitude of the magnetic field, generated at least by the first electrical windings during operation of the electrical machine, radially outwards of the screen electrical windings.

Abstract translation: 一种包括转子和定子的电机，所述转子和定子中的至少一个设置有超导​​第一电绕组; 以及一组一个或多个屏蔽电绕组，以一个或多个另外的超导电绕组的形式设置，布置在第一电绕组的周围和径向向外; 其中所述屏幕电绕组组被布置成被提供有用于产生具有适当幅度和相位的磁场的电流，以减小至少在所述电机操作期间由所述第一电绕组产生的磁场的大小， 屏幕电气绕组径向向外。

公开(公告)号：US20190337246A1

公开(公告)日：2019-11-07

申请号：US16387107

申请日：2019-04-17

Applicant: Rolls-Royce plc

Inventor： Alexis LAMBOURNE ,  Alexander C. SMITH ,  Jameel B. KHAN

IPC: B29C73/10 ,  B29C73/32 ,  B29C35/08 ,  B29C35/02 ,  C08J5/04

Abstract: A procedure for repairing a polymer matrix composite component is provided. The procedure includes the steps of: providing a polymer matrix composite component having a site prepared for repair by removal of damaged or defective material; locating an uncured, polymer matrix composite repair patch at the site to re-build the component thereat; and curing the polymer matrix of the repair patch by heating the patch using eddy currents induced by one or more alternating current coils. The repair patch is without metallic additives, such that the repaired polymer matrix composite after the curing step is also without metallic additives in the vicinity of the repair patch.