公开(公告)号：US20210139154A1

公开(公告)日：2021-05-13

申请号：US17041093

申请日：2019-03-25

Applicant: SAFRAN ,  SAFRAN ELECTRICAL & POWER ,  SAFRAN HELICOPTER ENGINES ,  SAFRAN POWER UNITS ,  SAFRAN ELECTRONICS & DEFENSE

Inventor： Thomas KLONOWSKI ,  Thomas BARRACO ,  Camel SERGHINE

IPC: B64D27/24 ,  B64C27/08

Abstract: In the field of multi-rotor rotary-wing aircraft a propulsion system for such an aircraft includes a reconfigurable electric network for supplying the electric motors driving the rotors. The system includes: a supply source, a supply bus connected to the supply source, at least four drive units each including an electric motor and its control circuit, and an electrical ring network including: an electrical line which is interrupted at each drive unit and whose ends are connected to the supply bus, and, for each drive unit, a first switch and a second switch that are connected between the control circuit and the electrical line, on either side of the interruption.

公开(公告)号：US20230318416A1

公开(公告)日：2023-10-05

申请号：US18042157

申请日：2021-08-13

Applicant: SAFRAN HELICOPTER ENGINES ,  SAFRAN

Inventor： Camel SERGHINE ,  Thomas KLONOWSKI ,  Pierre Gabriel Marie QUINIO ,  Sabrina Siham AYAT ,  Eric ROULAND ,  Sébastien YON ,  Albert MUTABAZI

IPC: H02K15/12 ,  H02K3/34 ,  H02K15/02

CPC classification number: H02K15/12 ,  H02K3/345 ,  H02K15/02

Abstract: A method for protecting coils from excessive heating in an aircraft electrical machine comprising a stator (12) and a rotor (14) configured to be rotationally driven with respect to one another, the stator including a plurality of notches (120) receiving one and the same plurality or otherwise of coils, the method including the following successive steps:



inserting an electrical insulator (16) into the notches or onto the teeth of the stator,
installing the coils (18) in the notches or on the teeth of the stator, casting a phase change material (20) in the notches or on the teeth equipped with the coils, the electrical insulator forming a casting mold.

公开(公告)号：US20220190686A1

公开(公告)日：2022-06-16

申请号：US17432245

申请日：2020-02-19

Applicant: SAFRAN ,  SAFRAN HELICOPTER ENGINES

Inventor： Sabrina AYAT ,  Camel SERGHINE ,  Thomas KLONOWSKI

IPC: H02K9/22 ,  H02K9/20

Abstract: An assembly including a winding and a cooler in contact with conductors of the winding, the cooler including a container forming a heat dissipator and including a phase change material having the ability to absorb a surplus quantity of heat when the conductors of the winding are subject to an increase in their current density and the heat dissipator is composed of at least two hollow parts separate and nestable with one another and intended to house the phase change material.

公开(公告)号：US20230026754A1

公开(公告)日：2023-01-26

申请号：US17757529

申请日：2020-12-18

Applicant: SAFRAN HELICOPTER ENGINES ,  SAFRAN POWER UNITS

Inventor： Camel SERGHINE ,  Denis Antoine Julien REAL

IPC: F01D25/18 ,  F01D15/10 ,  B64D27/10 ,  B64D27/24

Abstract: Turbogenerator (1) for an aircraft (2) comprising:—a turboshaft engine (3); —an electric generator (4) comprising a rotor (5) driven mechanically by the turboshaft engine (3) and a stator (6) supported by a housing (7) of the electric generator (4); characterized in that the turbogenerator (1) comprises a static separator (8) for separating an air/oil mixture coming from the turboshaft engine (3), the static separator (8) being positioned around the housing (7) of the electric generator (4).

公开(公告)号：US20240372448A1

公开(公告)日：2024-11-07

申请号：US18689650

申请日：2022-09-14

Applicant: SAFRAN HELICOPTER ENGINES

Inventor： Camel SERGHINE ,  Thomas KLONOWSKI

IPC: H02K17/16 ,  B64D27/30 ,  H02K15/00

Abstract: A rotor of an aircraft electric motor includes a shaft made of a first material, and a skin made of a second material different from the first material. The skin includes two half-shells welded together, each half-shell of the two half-shells including a chamfer, and the chamfers assembling the two half-shells together. The shaft includes a shoulder portion the skin being fixed on the shoulder portion. The rotor further includes an interpenetration layer of the first material and of the second material, the interpenetration layer including an alloy of the first material and an alloy of the second material, the interpenetration layer being between the shaft and the skin.

公开(公告)号：US20230249812A1

公开(公告)日：2023-08-10

申请号：US18001617

申请日：2021-06-14

Applicant: SAFRAN HELICOPTER ENGINES

Inventor： Jean-Louis Robert Guy BESSE ,  Camel SERGHINE

IPC: B64C27/50 ,  B64D29/00

CPC classification number: B64C27/50 ,  B64D29/00 ,  B64C29/0008

Abstract: A propulsion unit with a propeller includes a nacelle; a propeller rotatably mounted in the nacelle by means of a hub. The propeller has blades mounted in a blade cuff that is pivotable about a pitch axis relative to the hub. Each blade is pivotable relative to the cuff about a folding axis. A folding device includes an actuator for folding the blades. The folding device includes a control member rotationally affixed to the blade cuff and driven by the actuator. A connecting rod is pivotably mounted, on the one hand, on a root of the associated blade and, on the other hand, on the movable control member.

公开(公告)号：US20180187604A1

公开(公告)日：2018-07-05

申请号：US15129240

申请日：2015-03-26

Applicant: SAFRAN HELICOPTER ENGINES

Inventor： Vincent POUMAREDE ,  Thomas KLONOWSKI ,  Fabien MERCIER-CALVAIRAC ,  Camel SERGHINE

IPC: F02C7/275 ,  B64C27/12 ,  B64D35/02 ,  B64D35/08 ,  F02C3/107 ,  F02C3/10 ,  F02C7/262 ,  F02C9/42 ,  F02C7/32 ,  H02K7/20 ,  H02K7/18

CPC classification number: F02C7/275 ,  B64C27/12 ,  B64D35/02 ,  B64D35/08 ,  F02C3/10 ,  F02C3/107 ,  F02C7/262 ,  F02C7/32 ,  F02C7/36 ,  F02C9/42 ,  F05D2220/329 ,  F05D2220/76 ,  H02K7/1823 ,  H02K7/20 ,  Y02T50/671

Abstract: An assistance device for a free-turbine engine of an aircraft having at least two free-turbine engines, the device including an electrical starter machine for providing prolonged assistance to the gas generator of a first engine using energy produced by an electric generator machine driven by the second engine, the device further including at least one electricity storage member electrically connected to the electrical starter machine for providing a burst of assistance to the gas generator, wherein the electrical starter machine is powered by a first power converter enabling it to exchange energy with the storage member for providing the burst of assistance, and that transmits thereto the energy supplied by a second power converter for the prolonged assistance.

公开(公告)号：US20240228018A1

公开(公告)日：2024-07-11

申请号：US18580862

申请日：2022-07-18

Applicant: SAFRAN HELICOPTER ENGINES

Inventor： Pierre-Luc REGAUD ,  Didier Claude CHARTRAIN ,  Sebastien COMBEBIAS ,  Thomas DROUIN ,  Camel SERGHINE ,  Laurent Pierre TARNOWSKI ,  Michael DERDERIAN ,  Vincent DUQUEINE

IPC: B64C11/14 ,  B64C11/16

CPC classification number: B64C11/14 ,  B64C11/16

Abstract: A propeller for an aircraft propulsion assembly extending longitudinally along an axis X. The propeller comprising a propeller cone, blades, a guide member extending longitudinally along the axis X and rotating as one with the propeller cone, the guide member being mounted outside the propeller cone in such a way as to form between them a guide path, the guide member having an upstream opening configured to convey a flow of air in the guide path and a downstream opening in such a way as to remove the flow of air downstream, the guide member having through-orifices through which extend the blades of the propeller and compressor vanes, which rotate as one with the propeller cone and which are positioned in the guide path in such a way as to generate an accelerated air flow.

公开(公告)号：US20220153423A1

公开(公告)日：2022-05-19

申请号：US17433545

申请日：2020-02-24

Applicant: SAFRAN HELICOPTER ENGINES

Inventor： Thomas KLONOWSKI ,  Thomas Michel Andre Gerard BARRACO ,  Camel SERGHINE

IPC: B64D31/00 ,  F03D9/25 ,  B64D27/04 ,  B64D27/24 ,  B60L53/24 ,  B64C27/00

Abstract: A hybrid/electric propulsion architecture for a multi-rotor rotary wing aircraft, including an electricity generator driven by an internal combustion engine, and configured to operate in motor mode, a rectifier configured to convert an alternating current delivered by the electricity generator into direct current, an electrical network including a high voltage direct current (HVDC) bus, electrical energy storage means connected to the electrical network, during electrical energy regeneration on the HVDC bus, depending on the state of charge of the storage means: the storage means are configured to recover electrical energy, the storage means and the rectifier are configured to recover electrical energy, and the electricity generator operating in motor mode is configured to recover electrical energy.

公开(公告)号：US20210376677A1

公开(公告)日：2021-12-02

申请号：US16763723

申请日：2018-11-14

Applicant: SAFRAN HELICOPTER ENGINES

Inventor： Thomas KLONOWSKI ,  Camel SERGHINE ,  Jean-Luc Charles Gilbert FREALLE ,  Sebastien COMBEBIAS ,  Jean-Julien Camille VONFELT

IPC: H02K1/32 ,  H01F7/02

Abstract: The invention relates to an electrical machine comprising a stator (1) and a rotor (2) designed to be rotated in relation to each other, said rotor (2) or said stator comprising a plurality of permanent magnets (5), at least one permanent magnet comprising at least one fluid-propagation channel (10) extending longitudinally inside the permanent magnet, the propagation channel comprising a fluid inlet and a fluid outlet, the fluid inlet being bell-mouthed and oriented in a preferential direction of rotation of the permanent magnet.