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1. 发明申请

US20200165000A1 ACTUATION DEVICE FOR AIRCRAFT EMERGENCY RAM AIR TURBINE SYSTEM 审中-公开
公开(公告)号：US20200165000A1
公开(公告)日：2020-05-28
申请号：US15767125
申请日：2016-10-07
申请人： SAFRAN ELECTRICAL & POWER
发明人： Eric Joseph POLIN
IPC分类号： B64D41/00 , F15B15/19
摘要： The invention relates to an actuation device (22) for a system (20) including an emergency ram air turbine (21). Said device includes a ram (22) extending along a longitudinal axis (29) and including: a cylinder (30) configured to be connected to an aircraft structure (23) and a piston (33) extending into the cylinder (30) and defining two chambers (31, 32) in the latter. The piston (33) is equipped with a rod (33a) partially extending outside the cylinder (30). Said rod portion extending outside the cylinder (30) is configured to be connected to the emergency ram air turbine (21). The piston (33) is configured to move, relative to the cylinder (30), between a retracted position and a released position, wherein the length of the portion (33b) of the rod (33a) extending outside the cylinder (30) is greater than in the retracted position. One (31) of the chambers of the cylinder (30) is equipped with at least one gas generator (34) configured, when the piston (33) is in the retracted position, to release gases into said chamber (31) so that the piston (33) moves, in the cylinder (30), from the retracted position to the released position as a result of a difference in pressure between the two chambers (31, 32) of the cylinder (30).

2. 发明申请

US20230136151A1 ROGOWSKI CURRENT SENSOR WHICH IS FAST AND IMMUNE TO VOLTAGE DRIFTS 有权
公开(公告)号：US20230136151A1
公开(公告)日：2023-05-04
申请号：US17995137
申请日：2021-03-24
申请人： SAFRAN ELECTRICAL & POWER
发明人： Lionel CIMA
IPC分类号： G01R15/18
摘要： An electric circuit for measuring a current flowing in a conductor comprising: 2×N coils, N being an integer greater than or equal to 2, connected in series together; and a common mode filtering element associated with each of the 2×N coils, each filtering element being placed in parallel with the associated coil and being able to accomplish common mode filtering of the 2×N coils, a core of the 2×N coils having a relative permeability less than 10, and among the 2×N coils, N coils being wound in a direction opposite to the winding direction of the N other coils.

3. 发明申请

US20220411095A1 IMPACT DETECTION DEVICE, ASSOCIATED DETECTION SYSTEM AND AIRCRAFT EQUIPPED WITH SUCH A SYSTEM 有权
公开(公告)号：US20220411095A1
公开(公告)日：2022-12-29
申请号：US17779935
申请日：2020-12-08
申请人： SAFRAN ELECTRICAL & POWER , SAFRAN ELECTRONICS & DEFENSE
发明人： François GUILLOT , Serge Thierry ROQUES , Nicolas FANTON
IPC分类号： B64D45/00
摘要： An impact detection device includes an impact detector, a wireless communication device, an energy storage device, an autonomous electrical energy generation device, a device for receiving energy by radio frequency, the device being configured to adopt the following two modes: a first mode, referred to as autonomous mode, in which the autonomous electrical energy generation device is configured to supply the impact detector and the wireless communication device; a second mode, referred to as external mode, in which the device for receiving energy by radio frequency is configured to supply the impact detector and the wireless communication device.

4. 发明申请

US20220407395A1 POWER ELECTRONICS SECTION OF A STARTER-GENERATOR WITHOUT A COMMUTATOR 有权
公开(公告)号：US20220407395A1
公开(公告)日：2022-12-22
申请号：US17770805
申请日：2020-11-18
申请人： SAFRAN ELECTRICAL & POWER
发明人： Steven McDaniel , Rémi Goncalves , Sachin Aggarwal , Eric Kline , Rachid Boudyaf , Stefan Markus Teufel
IPC分类号： H02K11/33 , H02K7/00 , H02K5/04 , H02K9/10
摘要： A rotating machine assembly includes a rotating machine that has a cover that defines an outer surface of the rotating machine and a stator disposed within the cover. The stator is stationary with respect to the cover. The rotating machine also includes a shaft rotatably disposed at least partially within the cover so as to define a rotation axis. The shaft Includes a first end that is connectable to an aircraft engine and a second end that is opposite the first end. The rotating machine also includes a rotor attached to the shaft, the rotor being movable with respect to the stator and a power module including at least one MOSFET that periodically reverses an electrical current direction of the rotor. The power module includes the at least one MOSFET Is disposed within the cover.

5. 发明申请

US20220315203A1 LOCKING FINGER FOR AN ELECTRIC MOTOR SHAFT 有权
公开(公告)号：US20220315203A1
公开(公告)日：2022-10-06
申请号：US17597316
申请日：2020-07-02
申请人： SAFRAN ELECTRICAL & POWER
发明人： Jacques ECHE , Yann TONDRIAUX
IPC分类号： B64C11/02 , B64C27/12
摘要： Aircraft comprising a primary propeller driven in rotation by a motor, the motor having a first assembly and a second assembly movable in rotation relative to each other along an axis of rotation, the primary propeller being secured in rotation to one of said first assembly and second assembly, the first assembly and the second assembly being movable in translation relative to each other along a direction of translation defined by the axis of rotation, between a rest position and a service position, characterized in that said aircraft comprises a locking system, comprising a housing and an indexing element, the housing being formed in one among the first assembly and the second assembly, the indexing element being secured to the other among the first assembly and the second assembly, the locking system having an engaged configuration in which the indexing element is at least partially inserted into the housing.

6. 发明授权

US11370551B2 Aircraft propulsion assembly provided with a rotary transformer for supplying the blades with electrical energy 有权
公开(公告)号：US11370551B2
公开(公告)日：2022-06-28
申请号：US17051587
申请日：2019-04-04
申请人： SAFRAN AIRCRAFT ENGINES , SAFRAN ELECTRICAL & POWER , SAFRAN TRANSMISSION SYSTEMS
发明人： Mathieu Jean Jacques Santin , Guillaume Julien Beck , Aldric Renaud Gabriel Marie Moreau De Lizoreux , Boris Pierre Marcel Morelli , Jean-Michel Bernard Paul Chastagnier , Thomas Turchi
IPC分类号： B64D15/12 , H01F38/18 , B64C7/00 , B64C11/00 , B64D27/10 , B64D27/16 , B64D27/24
摘要： A propulsion unit for an aircraft, including an engine and a propeller shaft and further a propeller with airfoils which is coupled to the propeller shaft and having electrical members consuming electrical power, sealing between a case and the propeller shaft being ensured by a dynamic seal housed between a rotating dynamic seal support secured to the propeller shaft and a dynamic seal support flange secured to an end portion of the case, the rotating dynamic seal support being secured to the propeller shaft and abutted against a bearing for supporting this propeller shaft, it is provided that the propulsion unit, in order to deliver electrical power to the electrical members, having a rotating transformer rotated by the propeller shaft and including a stator, a casing of which is secured to the dynamic seal support flange and a rotor, a casing of which is secured to this propeller shaft.

7. 发明申请

US20220190660A1 IMPROVED METHOD FOR MANUFACTURING A ROTOR 有权
公开(公告)号：US20220190660A1
公开(公告)日：2022-06-16
申请号：US17440338
申请日：2020-03-18
申请人： SAFRAN ELECTRICAL & POWER
发明人： Paul David Flower , Adrian Uriondo
IPC分类号： H02K1/28 , H02K1/278 , H02K1/04 , H02K15/03 , H02K15/12
摘要： A method of manufacturing a rotor for a generator of an aircraft engine. The method includes providing a rotor body; mounting at least one magnet on the rotor body; wrapping a tow around the rotor body and the at least one magnet to form a wrapped tow having a plurality of layers overlaid in the radial direction; and curing the wrapped tow to form at least a part of a fibre-reinforced composite sleeve configured to retain the at least one magnet on the rotor body. The step of wrapping includes applying a controlled tension to the tow during wrapping. The controlled tension is varied according to the radial position of the layer being wrapped.

8. 发明申请

US20220163581A1 FAULT DETECTION BY MULTI-CARRIER TIME-DOMAIN REFLECTOMETERY (MCTDR) 有权
公开(公告)号：US20220163581A1
公开(公告)日：2022-05-26
申请号：US17439164
申请日：2020-03-16
申请人： SAFRAN ELECTRICAL & POWER
发明人： Emmanuel BUSSY
IPC分类号： G01R31/00 , G01R31/11
摘要： The invention relates to a method for detecting events by reflectometry in an electrical line of an avionic system, said line being fed with an AC voltage at a first frequency (f1), said AC voltage being sinusoidal and composed of a succession of alternate half-periods, said method comprising a step of injecting a reflectometry signal into the network, the reflectometry signal having a second frequency (f2) higher than the first frequency (f1); wherein the injecting step is synchronized with the AC voltage, the injecting step being carried out by injecting the reflectometry signal into the network during an injection duration (ti) comprised between the start and end of a half-period (t1) of the AC feed voltage.

9. 发明申请

US20220038096A1 ELECTRONIC CURRENT-SWITCHING SYSTEM PROVIDED WITH A REDUNDANT CONTROL SOLUTION 有权
公开(公告)号：US20220038096A1
公开(公告)日：2022-02-03
申请号：US17312124
申请日：2019-11-29
申请人： SAFRAN ELECTRICAL & POWER
发明人： Benoît LINK
IPC分类号： H03K17/687 , H03K3/017
摘要： An electronic current-switching system comprising a driver unit and a current-switching device with one controlled transistor, a control unit coupled to said transistor, a power supply unit of the control unit and a digital communication bus transmitting to the control unit a first control signal of the driver unit. The power supply unit comprises: a transformer, an integrated circuit including a clock input coupled to a second output of the driver unit delivering a second control signal having the form of a pulsed signal with an adjustable duty cycle, and an output delivering to the transformer a primary voltage signal dependent on the second control signal, and a voltage divider bridge measuring the frequency-domain signal delivered by the transformer.

10. 发明申请

US20220024568A1 ARCHITECTURE FOR A PROPULSION SYSTEM OF A HELICOPTER INCLUDING A HYBRID TURBOSHAFT ENGINE AND A SYSTEM FOR REACTIVATING SAID HYBRID TURBOSHAFT ENGINE 有权
公开(公告)号：US20220024568A1
公开(公告)日：2022-01-27
申请号：US17493636
申请日：2021-10-04
申请人： SAFRAN HELICOPTER ENGINES , SAFRAN ELECTRICAL & POWER
发明人： Philippe Vallart , Jean-Michel Bazet , Loic LeDuigou
IPC分类号： B64C27/14 , F01D13/00 , F01D19/00 , F02C7/36 , B64D27/24
摘要： The present disclosure relates to an architecture of a propulsion system of a multi-engine helicopter comprising turboshaft engines connected to a power transmission gearbox, characterized in that it comprises: at least one hybrid turboshaft engine capable of operating in at least one standby mode during a stable cruise flight of the helicopter; at least two systems for controlling each hybrid turboshaft engine, each system comprising an electric machine connected to the hybrid turboshaft engine and suitable for rotating the gas generator thereof, and at least one source of electrical power for the electric machine, each reactivation system being configured such that it can drive the turboshaft engine in at least one operating mode among a plurality of predetermined modes.

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