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公开(公告)号：US11280347B2
公开(公告)日：2022-03-22
申请号：US16962758
申请日：2019-01-17
摘要： Fan (16), in particular for an aircraft cooling unit, having a wheel (128) comprising a hub (138) and an annular array of blades (140), a shaft assembly (136) for driving the wheel about an axis (A), and fusible means for connecting the hub of the wheel to the shaft assembly, said fusible connecting means comprising a first mounting sleeve through which the shaft assembly extends and which is surrounded by the hub, and fusible safety elements (174) which extend parallel to the axis (A) and are configured to break and to disengage the wheel from the shaft assembly when said wheel rotates and a driving torque of the wheel transmitted by the shaft assembly exceeds a certain threshold, characterised in that the connecting means comprise a second wearing sleeve (143) which is inserted between the first sleeve and the hub and through which the fusible elements extend, the second sleeve being made of a material which is different from that of the first sleeve and subject to wear by friction and/or by heating if the shaft assembly continues to rotate following the aforementioned disengagement.
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公开(公告)号：US20220077749A1
公开(公告)日：2022-03-10
申请号：US17299872
申请日：2019-12-02
发明人： Jérémy CUENOT , Olivier BERRY , Julie DANCHIN , Laurent CARTAILLER , Jean-Michel Bernard Paul CHASTAGNIER , José SOLER , Philip INDGE , Samuel LEWIS
摘要： A smart motor having an electromechanical converter endowed with a rotating portion defining an axial direction and a radial direction, an electronic control unit, an electrical filter and a housing having a cooling device, the electromechanical converter, the electronic control unit and the filter being accommodated inside the housing, and the electronic control unit comprising an electrical converter configured to power the electromechanical converter. The housing is cylindrical and the electrical converter includes one or more electronic board(s) forming a hollow cylinder.
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73.发明申请公开(公告)号：US20220069565A1
公开(公告)日：2022-03-03
申请号：US17418351
申请日：2019-12-19
发明人： Alexis RENOTTE , Benoit MICHAUD
摘要： Overvoltage protection device for a variable-speed and constant-frequency electrical energy generation system includes at least one DC current generator connected, via a DC current bus to the input terminals of at least one inverter and to at least one regulation module for regulating the output voltage of the at least one inverter. The device includes a circuit including at least one switch in series with a resistor, the circuit being connected between the input terminals of the at least one inverter, at least one measurement sensor for measuring the DC voltage across the input terminals of the at least one inverter, a control circuit connected to the at least one measurement sensor and able to receive a voltage measured by the at least one measurement sensor, compare the measured voltage against a threshold and command the closure of the at least one switch if the measured voltage is greater than the threshold, and command opening thereof if not.
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公开(公告)号：US11209004B2
公开(公告)日：2021-12-28
申请号：US17054821
申请日：2019-05-28
发明人： Nicolas Stefanovic , Michael Polin , Arnaud Genin
摘要： Air compressor comprising a centrifugal-type compression wheel defining an axial direction and a radial direction, an air intake opening extending circumferentially around the compression wheel and opening onto a compression part, the compression part comprising a first portion forming a volute for the ejection of compressed air which is mounted facing the compression wheel in the radial direction, and an at least partly annular second portion extending around the first portion, the second portion comprising a central orifice receiving at least part of the compression wheel and an air deflection torus, the volute being made of metallic material and the torus made of thermoplastic material filled with non-metallic elements, the thermoplastic material having a thermal expansion corresponding to that of the metallic material.
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公开(公告)号：US11161603B2
公开(公告)日：2021-11-02
申请号：US15517924
申请日：2015-10-06
摘要： The invention relates to an architecture of a propulsion system of a multi-engine helicopter comprising turboshaft engines connected to a power transmission gearbox, characterised in that it comprises: at least one hybrid turboshaft engine (20) capable of operating in at least one standby mode during a stable cruise flight of the helicopter; at least two systems (30; 40) for controlling each hybrid turboshaft engine (20), each system (30; 40) comprising an electric machine (31; 41) connected to the hybrid turboshaft engine (20) and suitable for rotating the gas generator thereof, and at least one source (33; 43) of electrical power for said electric machine (31; 41), each reactivation system (30; 40) being configured such that it can drive said turboshaft engine (20) in at least one operating mode among a plurality of predetermined modes.
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公开(公告)号：US20210313913A1
公开(公告)日：2021-10-07
申请号：US17262147
申请日：2019-07-10
发明人： Benoit Michaud
摘要： A method for controlling a system for generating electric power for a power distribution network of an aircraft, the system for generating electric power comprising a generator, a rectifier, an inverter which produces a voltage according to several fixed-frequency phases, a DC voltage bus which connects the rectifier to the inverter, the control method comprising: —a correction step to determine at least one correction quantity GC, —a step of determining a signal SO for controlling the inverter from the determined correction quantity GC, —a step of determining a signal SG for controlling the generator from the determined correction quantity GC and —a step of transmitting the control signals SO, SG to the inverter and to the generator, respectively.
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公开(公告)号：US11140793B2
公开(公告)日：2021-10-05
申请号：US16604887
申请日：2018-04-10
摘要： Electronic module comprising a protective casing defining an internal volume and an electronic board placed in the internal volume, the electronic module comprising: means, for detecting a predetermined environmental condition of the internal volume, means for generating a cool zone inside the internal volume, which means are arranged such that the cool zone is separated from the electronic board; a control unit that is linked to the means for detecting an environmental condition and to the means for generating a cool zone and arranged to trigger the means for generating a cool zone when the means for detecting a predetermined environmental condition in the internal volume detect an environmental condition that is liable to result in the moisture in the air contained in the internal volume condensing on the electronic board.
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公开(公告)号：US20210297003A1
公开(公告)日：2021-09-23
申请号：US17266418
申请日：2019-08-06
发明人： Philippe PORET , Olivier BELNOUE
摘要： An electric circuit for a power converter having a substrate having a first face on which electronic components are mounted and a second face intended to cooperate with a cooling system, the substrate having a stack of conductive layers made of electrically and thermally conductive material and at least one insulating layer made of electrically insulating material, two successive conductive layers being separated by an insulating layer, and the conductive and insulating layers extending in parallel planes and being mechanically associated together. Each conductive layer has two opposite faces parallel to the plane in which the first face of the substrate extends and includes, on at least one of its two faces, at least one boss extending in a direction perpendicular to the plane, the at least one boss passing through at least one other conductive layer and opening out onto the first or the second face of the substrate.
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公开(公告)号：US20210239124A1
公开(公告)日：2021-08-05
申请号：US17054821
申请日：2019-05-28
发明人： Nicolas STEFANOVIC , Michael POLIN , Arnaud GENIN
摘要： Air compressor comprising a centrifugal-type compression wheel defining an axial direction and a radial direction, an air intake opening extending circumferentially around the compression wheel and opening onto a compression part, the compression part comprising a first portion forming a volute for the ejection of compressed air which is mounted facing the compression wheel in the radial direction, and an at least partly annular second portion extending around the first portion, the second portion comprising a central orifice receiving at least part of the compression wheel and an air deflection torus, the volute being made of metallic material and the torus made of thermoplastic material filled with non-metallic elements, the thermoplastic material having a thermal expansion corresponding to that of the metallic material.
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公开(公告)号：US20210066165A1
公开(公告)日：2021-03-04
申请号：US16981161
申请日：2019-03-18
发明人： Sebastien Heude , Jacques Salat , Rémi Pochet
IPC分类号： H01L23/467 , F28F3/02
摘要： A power assembly that has at least two power modules that each have at least one component to be cooled, for example, an electronic chip mounted on a base from which cooling elements extend. Each power module also has a hollow body with a channel for flow of a coolant fluid Each power module is mounted on each respective body so that the cooling elements extend at least partially into said channel through an opening of the body. At least one deflector is mounted in the channel between the cooling elements of the two modules so as to force the coolant fluid to flow in the zone of the channel comprising the cooling elements.
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