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公开(公告)号：US12224582B2
公开(公告)日：2025-02-11
申请号：US18101213
申请日：2023-01-25
Applicant: Rolls-Royce Deutschland Ltd & Co KG
Inventor： Patrick Martin , Erik Munevar
Abstract: A power supply for an aircraft comprises: an input configured to receive electrical power from an energy source, an output for supplying electrical power, a plurality of converters, each of which being electrically connected to the input to receive electrical power from the input and being configured to convert the electrical power and to provide the converted electrical power to the output, and a control unit being configured to individually control each of the plurality of converters.
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公开(公告)号：US20240401646A1
公开(公告)日：2024-12-05
申请号：US18670119
申请日：2024-05-21
Applicant: Rolls-Royce Deutschland Ltd & Co KG
Inventor： Tomasz REGEL
IPC: F16C35/04 , F16C19/06 , F16C35/077
Abstract: A bearing holding device with an annular inner region and a flange region, extending at least approximately outwards in the radial direction, with recesses, which flange region is designed in one piece with the inner region and is narrower in the axial direction than the annular inner region, is described. The flange region is, in the circumferential region, surrounded at least in certain regions by a connection region, which is formed in one piece with the flange region and via which the inner region and the flange region can be firmly connected to a housing. Furthermore, a rolling bearing apparatus with the bearing holding device is proposed.
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公开(公告)号：US20240384874A1
公开(公告)日：2024-11-21
申请号：US18662660
申请日：2024-05-13
Applicant: Rolls-Royce Deutschland Ltd & Co KG
Inventor： Gregor Christoffer GEBEL
Abstract: The invention relates to a combustion chamber module having an annular combustion chamber, a feed device for fuel, and an injector assembly positioned in an annular configuration on a combustion chamber head and comprising injectors for feeding in the fuel. The feed device is configured for feeding in liquid and gaseous fuel. In addition to a first injector type for feeding in liquid fuel, the injector assembly has a second injector type, which is designed for feeding in gaseous fuel, in particular hydrogen, wherein the feed device can be controlled in such a way that the first injector type and the second injector type are not supplied simultaneously with fuel.
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公开(公告)号：US12140090B2
公开(公告)日：2024-11-12
申请号：US18544908
申请日：2023-12-19
Applicant: Rolls-Royce Deutschland Ltd & Co KG
Inventor： Jorge Calderon
Abstract: A gas turbine engine control system and a method for limiting turbine overspeed in case of a shaft failure. An overspeed protection system detects a shaft failure of the engine. A variable stator vane mechanism adjusts stator vanes of a compressor of the engine in their rotational position, and is activated to move at least one row of the stator vanes into a closed position which blocks air flow through the compressor in case a shaft failure is detected. Bleed valves in the compressor have closed and open positions and divert in the opened position airflow through the compressor to a bypass channel. A detection system detects directly or indirectly the position of the stator vanes, and the control system sets the bleed valves to the open position when the detection system detects that the stator vanes have moved into the closed position.
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公开(公告)号：US12135077B2
公开(公告)日：2024-11-05
申请号：US17882170
申请日：2022-08-05
Applicant: Rolls-Royce Deutschland Ltd & Co KG
Inventor： Alexander Schütt , Tobias Eberhardt , Rens Douma , Uwe Kracht , Maximilian Prölss , Wolfram Kurz-Hardjosoekatmo , Stephan Uhkötter
Abstract: A friction bearing of a planetary gearbox has a first rotationally fixed component and a second component rotatably connected thereto. Oil in the region of an oil feed pocket of the first component is directed into the bearing clearance between the components. The oil is directed into the oil feed pocket via at least one first line that opens into the oil feed pocket. Oil is also directed via at least one second line into the oil feed pocket, the port region of said second line into the oil feed pocket in the circumferential direction of the bearing clearance and in the main rotation direction of the second component in relation to the first component and/or in the axial direction of the friction bearing being spaced apart from the port region of the first line into the oil feed pocket.
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Patent Agency Ranking
公开(公告)号：US20240345605A1
公开(公告)日：2024-10-17
申请号：US18614037
申请日：2024-03-22
Applicant: Rolls-Royce Deutschland Ltd & Co KG
Inventor： Gregor Christoffer GEBEL , Carsten CLEMEN
CPC classification number: G05D7/0126 , B21F3/02
Abstract: A method for producing a nonlinear cylindrical spring produced by winding or coiling a spring wire having wire diameters varying over its length, and formed from a blank with a constant diameter. A drum roller shapes the blank and, between the outer lateral surface of an inner rotor driven in rotation about a central longitudinal axis and the inner lateral surface of a drum concentric with the rotor, has an annular gap which tapers continuously from an input side to an output side, the clear opening width of which, viewed in the radial direction, is greater than the diameter of the blank on the input side and equal to or smaller than the minimum wire diameter of the spring wire on the output side, and the blank is shaped by moving it into the annular gap from the input side to the output side.
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公开(公告)号：US20240334593A1
公开(公告)日：2024-10-03
申请号：US18591917
申请日：2024-02-29
Applicant: Rolls-Royce Deutschland Ltd & Co KG
Inventor： Gergely László HEGEDÜS-FUCHS , Daniel FARKAS , Tamás Attila FODOR
IPC: H05K1/02
CPC classification number: H05K1/0271 , H05K2201/10409 , H05K2201/10424
Abstract: A holding down construction for a printed circuit board includes a grid structure having first ribs and second ribs arranged in a crossed manner, wherein the first ribs and the second ribs form intersections, and wherein the grid structure has an upper side and a lower side. The holding down construction further includes screwing posts attached to the grid structure and configured to be screwed against a printed circuit board and/or another component, and contact structures attached to the lower side of the grid structure and configured to lie against and exert a force against the printed circuit board.
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公开(公告)号：US20240329143A1
公开(公告)日：2024-10-03
申请号：US18605362
申请日：2024-03-14
Applicant: Rolls-Royce Deutschland Ltd & Co KG
Inventor： Máté BÉRCES , Csaba BLEUER
IPC: G01R31/3835 , G01R31/36 , G01R31/389 , H01M10/48
CPC classification number: G01R31/3835 , G01R31/3644 , G01R31/389 , H01M10/48
Abstract: A fault monitoring device for a power system includes: a first parallel circuit of resistors that includes a first branch and a second branch both connected to a high side voltage rail of the power system; and a second parallel circuit of resistors that includes a third branch and a fourth branch both connected to a low side voltage rail of the power system. The second branch includes at least two electrical resistors arranged in series, wherein at least one electrical resistor may be short-circuited by a first switch. The fourth branch includes at least two electrical resistors arranged in series, wherein at least one electrical resistor may be short-circuited by a second switch. A controller is configured to selectively switch the switches to provide for different states of the circuits and determine resistance values for the high side and low side insulation resistances of the power system.
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公开(公告)号：US20240263942A1
公开(公告)日：2024-08-08
申请号：US18424181
申请日：2024-01-26
Applicant: Rolls-Royce Deutschland Ltd & Co KG
Inventor： Felix FIGASCHEWSKY , Thomas GIERSCH , Moritz WIRTH , Jens NIPKAU , Christopher HEMERLY
IPC: G01B21/20
CPC classification number: G01B21/20
Abstract: A method for determining a shape of a mistuned blade of an impeller includes: providing a nominal blade with radially threaded-on profile elements; providing an initially mistuned blade with profile elements, the mistuned blade having a reduced or increased thickness at at least one of the profile elements compared with the nominal blade; determining the shape of the nominal blade in a hot state; determining the shape of the mistuned blade in the hot state; comparing the two shapes and determining a parameter of the mistuned blade which differs from the corresponding parameter for the nominal blade in the hot state; and changing the value of this parameter for the mistuned blade in the cold state such that the difference between the parameter for the mistuned blade and the nominal blade in the hot state no longer exists.
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公开(公告)号：US20240250527A1
公开(公告)日：2024-07-25
申请号：US18101213
申请日：2023-01-25
Applicant: Rolls-Royce Deutschland Ltd & Co KG
Inventor： Patrick MARTIN , Erik MUNEVAR
CPC classification number: H02J1/10 , B64C29/0008 , B64D41/00 , G01R19/10 , H02M3/02 , B64D2221/00
Abstract: A power supply for an aircraft comprises: an input configured to receive electrical power from an energy source, an output for supplying electrical power, a plurality of converters, each of which being electrically connected to the input to receive electrical power from the input and being configured to convert the electrical power and to provide the converted electrical power to the output, and a control unit being configured to individually control each of the plurality of converters.
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