Abstract: A first capture unit includes a first turbine rotor having a first hub. A second capture unit includes a second turbine rotor having a second hub. The rotors counter-rotate independently. A first electric generator includes a first rotor fixed to the first turbine rotor and a first stator fixed so as to face the first rotor. A second electric generator includes a second rotor having a rotor fixed to the second turbine rotor and a second stator fixed so as to face the second rotor. Power electronic means control the electric currents produced by the first and the second stators of the first and the second electric generators independently of each other thus regulating the rotational speed of the first and second turbine rotors.

Abstract: The mobile part of a fan includes at least one rotor of an electric motor and fan blades integral with the rotor. A rotating fixed part includes at least one stator of the electric motor. The fan additionally includes at least part of the electric motor that includes the stator arranged in an enclosed chamber. The motor-operated fan includes structure for guiding a first fluid passing through at least one of the mobile part and fixed part of the motor-operated fan between a fist zone with a first pressure of the first fluid outside the enclosed chamber on a first side of the blades of the motor-operated fan in an axial direction, and a second zone with a second pressure on a second side of the blades of the motor-operated fin outside the enclosed chamber, the second pressure being less than the first pressure.

Abstract: A process for production of a winding for the magnetic circuit of a rotating electrical machine in which the conductors are placed in slots of the magnetic circuit in two slot planes. The process includes producing the two planes of conductors successively and independently, each plane of conductors having at least one layer of conductors.

Abstract: An electrical energy production system includes a wind turbine having blades mounted on a support and which rotationally drive an alternator. The alternator includes at least one module having at least one rotor disk and one stator disk centered on an axis of the support and all of the rotor and stator disks are coaxial.

Abstract: The invention concerns a rotor shaft of a synchronous electric machine with two machined ends parts, framing an electrically active central part having conductors. The active part consists of stacked core disks maintained rigid by rods, the disks having radial notches for the conductors. Invention is applicable to synchronous electric machines.

Abstract: An electrical machine with a discoidal structure comprising rotor and stator discs disposed coaxially and having at least two axial air gaps between the rotor and stator discs. The widths of the axial air gaps are measured and sent to a control unit for being compared so that an offset signal can be generated based on the difference between the widths of the axial air gaps. The offset signal is supplied to a drive module for driving a balancing means in order to cancel an axial magnetic force exerted on either the rotor or stator discs. The deterioration of the electrical machine can be reduced.

Abstract: The present invention includes a basic module for a discoidal machine. The module includes at least one stator subassembly and a rotor subassembly. A housing member is connected to the stator subassembly. The stator subassembly and the rotor subassembly are coaxially arranged. A discoidal machine for such modules is also disclosed.

Abstract: A rotary machine having a stator with a stator bore designed for accommodating a jacket. The stator comprises coils retained in notches and notch closing shims, wherein elastic members are provided between the coils and the shims. The shims protrude from the bore and the jacket is retained elastically in the bore by the pressure exerted on the jacket by the shims.

Abstract: The invention concerns a method for repairing a cooling fluid box of the cooling circuit of an alternator stator bar, the imperviousness between the box and the stator bar being defective, wherein:the cooling circuit (9, 12, 6, 7, 16) is disconnected,the box (4) is cut along a plane approximately perpendicular to the axis (31) of the alternator,imperviousness is established between the stator bar (3) and the box (4),a cover (17) is secured to the box (4) along the cutting plane,the stator bar is cooled during the imperviousness resumption and cover fixing operations,the electric circuit of the stator bar (3) is re-established,the cooling circuit of the stator bar is connected.