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公开(公告)号：US11367543B2
公开(公告)日：2022-06-21
申请号：US16558640
申请日：2019-09-03
Applicant: ROLLS-ROYCE plc
Inventor： Alexis Lambourne , Alexander C. Smith , Jameel B. Khan
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.
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公开(公告)号：US09045834B2
公开(公告)日：2015-06-02
申请号：US13657288
申请日：2012-10-22
Applicant: ROLLS-ROYCE PLC
Inventor： Alexis Lambourne
CPC classification number: C23F13/22 , C23F13/16 , C23F2213/30 , C23F2213/31 , C23F2213/32
Abstract: This invention relates to a sacrificial anode, comprising: a first layer of a first material; and, a second layer of a second material which is electrically connected to the first layer, wherein the first material is more anodic with respect to a galvanic series than the second material. The invention also relates to a body including the sacrificial anode.
Abstract translation: 本发明涉及一种牺牲阳极，包括：第一材料的第一层; 以及电连接到第一层的第二材料的第二层，其中第一材料相对于比第二材料的电流系列更阳极。 本发明还涉及包括牺牲阳极的主体。
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公开(公告)号：US11905028B2
公开(公告)日：2024-02-20
申请号：US17562775
申请日：2021-12-27
Applicant: ROLLS-ROYCE plc
Inventor： Malcolm L Hillel , Alexis Lambourne
Abstract: An aircraft comprises a hydrogen-fuelled propulsion system, a plurality of like generally cylindrical hydrogen storage tanks and a conveying system arranged to convey hydrogen from the hydrogen storage tanks to the hydrogen-fuelled propulsion system. The aircraft further comprises a fuselage having a cargo bay (502) including one or more (510A-G) of the plurality of hydrogen storage tanks, the longitudinal axes (511A-G) of the one or more hydrogen storage tanks within the cargo bay extending parallel to the longitudinal axis (501) of the fuselage and lying in one or more planes (595, 597) extending across the width dimension of the cargo bay. The hydrogen storage tanks within the cargo bay have a common aspect ratio R in the range 4.2≤R≤25.7, allowing the volume of space with the cargo bay occupied by stored hydrogen to be maximised or approximately maximised.
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公开(公告)号：US20230203956A1
公开(公告)日：2023-06-29
申请号：US18062734
申请日：2022-12-07
Applicant: ROLLS-ROYCE plc
Inventor： Neelambaran KARAPURATH , Alexis Lambourne , Neil E. GLOVER
CPC classification number: F01D5/3007 , F02C7/36 , F01D5/02 , F03G7/0614
Abstract: A bladed disc for a rotating machine comprising a central disc that rotates about a central axis, the central disc having a series of blades arranged around its periphery; the blades have dovetail roots which engage with slots on the central disc; the bladed disc being configured so that there is a pre-loading force between the blades and the central disc such that each blade is forced away from the central axis of the bladed disc; and wherein the pre-loading force is equal or greater than 40% of the maximum centrifugal force applied to the blade during a flight cycle.
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公开(公告)号：US10951101B2
公开(公告)日：2021-03-16
申请号：US15357647
申请日：2016-11-21
Applicant: ROLLS-ROYCE plc
Inventor： James Emberton , Alexis Lambourne , John J A Cullen
Abstract: A method of manufacturing an induction motor rotor assembly, the method includes the steps of: providing a rotor; machining a plurality of re-entrant slots axially along an outer surface of the rotor; positioning a sleeve concentrically over the outer surface of the rotor; applying a friction stir welding process to the sleeve along each re-entrant slot axially along the outer surface of the rotor to cause the sleeve material to plasticise and flow into the axial re-entrant slot to form an axial re-entrant slot bar; and providing an electrical connection at each of the opposing axial ends of the rotor between respective ones of opposing ends of each of the axial re-entrant slot bars to thereby form the induction motor rotor.
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Patent Agency Ranking
公开(公告)号：US12283850B2
公开(公告)日：2025-04-22
申请号：US17474687
申请日：2021-09-14
Applicant: ROLLS-ROYCE plc
Inventor： Alexis Lambourne , Iain Todd , Geraint W Jewell
IPC: H02K15/00 , B05D5/12 , B22F10/60 , B22F10/64 , B33Y10/00 , B33Y80/00 , H01F5/06 , H01F41/04 , H02K3/12 , H02K3/18 , H02K3/26 , H02K3/28 , H02K3/32 , H02K15/02 , H02K15/0407 , H02K15/043 , H02K19/02 , B22F10/25 , B22F10/28 , B22F10/32 , B22F10/80
Abstract: A 3D printed metal coil for an electrical machine. The 3D printed coil has a plurality of turns and is configured to fit within a slot in an electrical machine. A cross-sectional shape of successive turns of the plurality of turns varies such that a portion of each turn forms a part of an external surface of the metal coil, the external surface forming an interface with a side of the slot.
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公开(公告)号：US11828415B2
公开(公告)日：2023-11-28
申请号：US17398174
申请日：2021-08-10
Applicant: ROLLS-ROYCE plc
Inventor： Alexis Lambourne
IPC: F17C1/16
CPC classification number: F17C1/16 , F17C2201/0109 , F17C2203/0604 , F17C2203/066 , F17C2203/0619 , F17C2203/0663 , F17C2221/012 , F17C2223/036
Abstract: A composite gas storage tank includes a composite wall defining a main storage volume and a hollow conduit portion communicating with and extending away from the main storage volume. A hollow coupling element has a length portion which is partially embedded within and extends substantially parallel to the hollow conduit portion of the composite wall. The hollow conduit portion and the coupling element provide communication between the main storage volume and the tank exterior. A leakage path around the hollow coupling element is significantly longer than those of tanks of the prior art and reduces the rate at which hydrogen leaks from the tank. A carbon fibre filament winding extends over the length of the hollow conduit portion and provides a radially inwardly-directed force biasing the carbon fibre material of the hollow conduit portion into contact with the coupling element, further reducing the leakage rate on the leakage path.
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公开(公告)号：US11655939B2
公开(公告)日：2023-05-23
申请号：US17403090
申请日：2021-08-16
Applicant: ROLLS-ROYCE plc
Inventor： Alexis Lambourne
IPC: F17C1/00 , F17C13/02 , B60L50/70 , B64D27/10 , B64D27/24 , H01M8/04 , B64D37/06 , H01M8/04082 , B64D27/02 , H01M8/10
CPC classification number: F17C1/005 , B60L50/70 , B64D27/10 , B64D27/24 , B64D37/06 , F17C13/02 , H01M8/04201 , B60L2200/10 , B64D2027/026 , F17C2201/0109 , F17C2201/035 , F17C2203/0604 , F17C2203/066 , F17C2203/0614 , F17C2203/0636 , F17C2221/012 , F17C2260/011 , F17C2260/038 , F17C2270/0186 , H01M2008/1095 , H01M2250/20
Abstract: A composite storage tank comprises a composite wall enclosing a gas storage volume and defining a cylindrical portion of the tank. The composite wall incorporates first and second sets of metallic fibres each of which is susceptible to embrittiement by hydrogen and has ends extending through the exterior surface of the composite wall. By measuring the electrical resistances of the metallic fibres, a measure of the amount of hydrogen that has leaked through the composite wall over a period of time, and the present physical condition of the tank, may be determined. The approximate axial and azimuthal coordinates of a particular leakage point may also be determined.
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公开(公告)号：US09790601B2
公开(公告)日：2017-10-17
申请号：US14935936
申请日：2015-11-09
Applicant: ROLLS-ROYCE PLC
Inventor： Alexis Lambourne , Leslie Callow
CPC classification number: C23F13/20 , B63B59/04 , C23F13/06 , C23F13/14 , C23F13/16 , C23F2213/21 , C23F2213/31 , C23F2213/32 , C25C3/10 , C25C7/06
Abstract: A marine cathodic protection system configured to protect a metal structure exposed to seawater from corrosion. The system includes a first anode provided on or adjacent the protected metal structure at a first position. The first anode is exposed to seawater, is electrically insulated from the protected metal structure, and is formed of a metal having a greater negative potential than the protected metal. The system further includes a second anode provided on or adjacent the protected metal structure at a second position. The second anode is electrically connected to the first anode. The first position is preferably substantially submerged in said seawater such that the protected metal and the first anode cooperate to define a seawater battery configured to apply an electrical current to the second anode, the second anode thus being an impressed current anode.
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公开(公告)号：US11329536B2
公开(公告)日：2022-05-10
申请号：US16558652
申请日：2019-09-03
Applicant: ROLLS-ROYCE plc
Inventor： Jameel B. Khan , Alexis Lambourne , Alexander C. Smith
IPC: H02K15/04 , H01B3/12 , H02K1/18 , H02K3/02 , H02K3/30 , H02K3/34 , H02K3/50 , H02K15/12 , B33Y80/00
Abstract: A method of manufacturing a winding assembly for an electrical machine, the method comprising: selecting (S1) a mathematical function defining the spatial separation between adjacent turns of a winding path, the mathematical function dependent on one or more parameters of the electrical machine and/or of the anticipated operating environment of the electrical machine; forming (S2), by three-dimensional, 3D, printing, an electrically insulating body comprising a channel defining the winding path in accordance with said function, the channel having an inlet and an outlet; heating (S3) the electrically insulating body to a temperature above the melting point of an electrically conducting material; flowing (S4) 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.
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