Safran

Universite Dé Lorraine

Safran Helicopter Engines

Sabrina Siham Ayat

Camel Serghine

Thomas Klonowski

Rémy Biaujaud

Alexandre Colle

Christelle Saber

Sébastien Merle

Albert Mutabazi

Pierre Gabriel Marie Quinio

Benjamin Daguse

Eric Rouland

Rémi Luc Stéphane Dorget

Sébastien Yon

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

Aircraft electrical machine with improved heat transfer by means of a phase change material and associated method

An aircraft thruster includes at least a first propeller provided with a plurality of radial blades extending about an axis of rotation of the said first propeller, which is driven in rotation by a first electric motor. An electrical supply of the first electric motor includes power circuits carried by a fairing of the thruster characterized in that the power circuits are arranged in an annular manner in an annular part integral with the fairing of the thruster, this annular part being arranged around the said first propeller.

Aircraft thruster having an annular part integral with a fairing surrounding a first propeller

The present invention relates to a superconducting electric machine () comprising an inductor () having: —superconducting pellets () circumferentially distributed about an axis (X) of the electric machine (), —an armature () comprising coils (), each coil () having a circumferential radially inner edge () and a circumferential radially outer edge (), and—at least one flow barrier (') extending circumferentially with respect to the axis (X), each flow barrier () extending between the superconducting pellets () and the armature () so as to at least partially cover at least one of the radially outer edge () and the radially inner edge () of all or part of the coils () of the armature ().

Protection for the coils of an electric machine

Disclosed is a rotating electrical machine with axial air gap, comprising two rotors, each provided with superconducting axial magnetic flux barrier elements around an axis of rotation and having, between them, axial magnetic flux passage areas, at least one armature, comprising windings and a superconducting field coil surrounding the elements and the armature and capable of inducing an axial magnetic field. Each armature is positioned between two of the rotors. The superconducting elements of the rotors are coaxial with one another and also the flux passage areas. A first annular cryogenic enclosure encloses the field coil and a second cryogenic enclosure encloses the two rotors and the armature or only one rotor, with a third cryogenic enclosure around the other rotor without the armature.

Rotating electrical machine with superconducting elements and cryogenic enclosures

The present invention relates to a superconducting pellet for a superconducting electrical machine, the superconducting pellet having a circumferential wall, the circumferential wall having: a first border, a second border opposite the first border, an inner face connecting the first border to the second border, an outer face opposite the inner face, and a cavity formed between the first border and the second border and defined by the inner face, and an additional wall which covers the first border or is flush with the first border so as to at least partially cover the cavity, or extends from the inner face at a distance from the first border and the second border so as to divide the cavity into two portions.

Superconducting bulk comprising a cavity and associated electric machine

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.

Growing community of inventors

Moissy-Cramayel, France

Sabrina Siham Ayat