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公开(公告)号：US10307973B2
公开(公告)日：2019-06-04
申请号：US15574914
申请日：2016-06-02
Applicant: ROLLS-ROYCE plc
Inventor： James K Lander , Peter Calvert , James Bowyer , Michael Bowyer
Abstract: A method of reinforcing a fiber reinforced resin matrix composite structure, the method including: providing a composite structure having one or more holes formed therein, and feeding a reinforcement rod through a passageway having one or more walls defining an inlet to the passageway. The inlet to the passageway is dimensioned to prevent a rod having a maximum cross sectional dimension greater than a predetermined dimension from passing through the passageway. In the event of the rod impacting the wall defining the inlet to the passageway, operation of the rig is stopped. In the event of the rod passing through the passageway without impacting the wall defining the inlet to the passageway, a portion of the rod is inserted into a hole in a composite structure.
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公开(公告)号：US20190164654A1
公开(公告)日：2019-05-30
申请号：US16184606
申请日：2018-11-08
Applicant: ROLLS-ROYCE plc
Inventor： James C. PALMER
Abstract: A nuclear power plant, having a reactor pressure vessel; a steam generator arranged to generate steam utilising thermal energy generated within the reactor pressure vessel; and a fluid circuit for transferring thermal energy from the reactor pressure vessel to the steam generator. The plant also has a coolant reservoir for storing coolant for supply to the steam generator under gravity in emergency conditions. The steam generator has a steam drying zone comprising one or more steam separators configured to dry steam; and the steam generator and coolant reservoir are configured such that when coolant is supplied from the coolant reservoir to the steam generator in emergency conditions the coolant stays below a threshold level defined by the steam drying zone.
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公开(公告)号：US20190162070A1
公开(公告)日：2019-05-30
申请号：US16170688
申请日：2018-10-25
Applicant: ROLLS-ROYCE plc
Inventor： Benedict PHELPS , Stephane M.M. BARALON , Mark J. WILSON
Abstract: A gas turbine engine 10 is provided in which a fan having fan blades 139 in which the camber distribution relative to covered passage of the fan 13 allows the gas turbine engine to operate with improved efficiency when compared with conventional engines, whilst retaining an acceptable flutter margin.
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公开(公告)号：US10294810B2
公开(公告)日：2019-05-21
申请号：US15134723
申请日：2016-04-21
Applicant: ROLLS-ROYCE plc
Inventor： Mark T Mitchell
Abstract: Described is a seal segment (310) for a gas turbine engine, comprising: a gas facing wall (312) having a gas facing surface (314) and a first internal surface (316); an outboard wall (318) having an outboard facing surface (320) and a second internal surface (322) which is radially separated from the first internal surface with a gap therebetween; a first conduit (324) located between the first and second internal surfaces; and, a second conduit (326) located between the first and second internal surfaces, wherein the first and second conduits are radially separated by a party wall (328).
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公开(公告)号：US20190145317A1
公开(公告)日：2019-05-16
申请号：US16158713
申请日：2018-10-12
Applicant: ROLLS-ROYCE plc
Inventor： James HOLT
Abstract: A gas turbine engine includes: a core engine surrounded by a core fairing; a propulsive fan; a nacelle surrounding the propulsive fan, the core fairing and the core engine; and a fan duct for receiving a bypass air flow accelerated by the propulsive fan, the fan duct being defined between the nacelle and the core fairing. The gas turbine engine further includes an air-oil heat exchanger for cooling engine oil using an air flow diverted from the bypass air flow, the heat exchanger being mounted behind a wall of the fan duct. The gas turbine engine further includes a flow passage which receives the diverted air flow at a first location in the fan duct, delivers the diverted air flow to the heat exchanger, and returns the diverted air flow to the fan duct at a second location which is downstream of the first location.
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Patent Agency Ranking
506.发明申请公开(公告)号：US20190128129A1
公开(公告)日：2019-05-02
申请号：US16142312
申请日：2018-09-26
Applicant: ROLLS-ROYCE plc
Inventor： Matthew J. HOBBS , Ashraf MIAH
Abstract: The casing assembly comprises a casing comprising a slot defined by a front surface and a rear surface, the front surface and the rear surface being spaced apart by an axial casing gap. A plurality of stator vanes comprising a platform and at least one aerofoil extending from the platform, the platform being received within the slot and having an axial length and a circumferential length. Circumferential lengths of the platforms define a total circumferential length which is less than the circumference of the casing at an outer radial surface of the platforms and so defines a circumferential clearance. Axial length of each of the platforms is less than the axial casing gap and so defines an axial clearance. Circumferential and axial clearances allow the platforms of the stator vanes to rotate within the slot, with rotation of the platforms from an unrotated position reducing the circumferential and axial clearance.
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公开(公告)号：US20190126353A1
公开(公告)日：2019-05-02
申请号：US16148512
申请日：2018-10-01
Applicant: ROLLS-ROYCE plc
Inventor： Ian M. GARRY
Abstract: A method of forming a plurality of components by additive layer manufacturing includes forming at least one annular support structure joining the plurality of components with the plurality of components being spaced around the circumference of at least one annular support structure. Concentric inner and outer annular supports may be provided.
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公开(公告)号：US20190123626A1
公开(公告)日：2019-04-25
申请号：US16132524
申请日：2018-09-17
Applicant: ROLLS-ROYCE plc , Rolls-Royce Marine AS
Inventor： Giles E. HARVEY , Astrid ROKKE
CPC classification number: H02K21/28 , F01D15/10 , F05D2220/32 , F05D2260/00 , F05D2260/20 , H02K1/32 , H02K7/003 , H02K7/08 , H02K7/088 , H02K7/1823 , H02K9/19 , H02K16/005
Abstract: An electric motor generator system has a hollow rotatable shaft, a coil spar, and a plurality of magnet portions. The hollow rotatable shaft has a central longitudinal axis. The coil spar comprises one or more coil assemblies and is positioned concentrically within the hollow rotatable shaft. Each of the magnet portions is shaped to conform to a radially inwardly facing surface of the shaft. Each of the plurality of magnet portions abuts conformally against the radially inwardly facing surface of the shaft between the radially inwardly facing surface and the or each coil assembly.
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公开(公告)号：US20190120138A1
公开(公告)日：2019-04-25
申请号：US16134062
申请日：2018-09-18
Applicant: ROLLS-ROYCE plc
Inventor： John R. WELLS , Christopher A. MOSLEY , Nicholas GRECH
Abstract: A turbofan engine comprises a nacelle and an engine core having a core cowling. The internal surface of the nacelle and the external surface of the core cowling define a bypass duct having an exhaust end defining a bypass duct exit plane generally normal to the longitudinal axis of the engine. The core cowling extends aft of the bypass duct exit plane and has an annular or partly-annular exit ventilation nozzle located aft of a first longitudinal position and fore of a second longitudinal position, the first and second longitudinal positions being respectively fore of and either aft of or coincident with the bypass duct exit plane, the core cowling otherwise being free of exit ventilation nozzles fore of the second longitudinal position. The engine has a lower specific fuel consumption than an equivalent engine having an exit ventilation nozzle in a conventional position aft of the second longitudinal position.
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公开(公告)号：US20190118411A1
公开(公告)日：2019-04-25
申请号：US16090963
申请日：2017-03-28
Applicant: ROLLS-ROYCE PLC
Inventor： Giovanni Antonio Marengo
Abstract: There is disclosed a method of manufacturing a composite component comprising a main body and an integral flange, the method comprising applying fibre-reinforcement material on a tool having a main body portion and a flange-forming portion to provide a pre-form comprising a body region and a longitudinally adjacent flange region. The pre-form extends generally longitudinally between two longitudinal ends; and a trailing ply of the pre-form extends generally longitudinally between the longitudinal end closest to the flange region and an inner ply end located in the flange region or partway into the body region. Relative movement between the flange-forming portion and the main body portion causes sliding movement between the trailing ply and the flange-forming portion during a flange forming operation, thereby causing a tension force in at least the flange region of the pre-form of during forming of the flange.
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