Abstract: A method for manufacturing magnetic circuit loops for a multi-phase transformer from a magnetic strip including: a) providing a magnetic strip of constant width in a roll wound around a first circular mandrel and extending along a longitudinal axis; b) cutting the roll into a first and a second half-roll each having a longitudinal axis comprising a respective boundary surface formed once it is separated from the other half-roll, the roll being cut slantwise at an angle ? relative to the longitudinal axis, such that the first half-roll constitutes a first loop having its boundary surface outwardly oriented relative to its longitudinal axis, while the boundary surface of the second half-roll is oriented opposite to the boundary surface of the first half-roll; c) aligning the first and second half-rolls to form two loops, including at least one sub-step of reversely unwinding and rewinding the second half-roll on a mandrel.

Abstract: Device for transforming and for rectifying polyphase, in particular three-phase, voltage comprising a polyphase transformer comprising a voided central zone, a voltage rectifier circuit that is connected to the transformer and a fan. The voltage rectifier circuit includes at least three heat dissipation units forming a right prism of regular polygonal section comprising a voided central zone, the transformer, the voltage rectifier circuit and the fan being positioned such that at least some of the airflow produced by the fan flows through the voided central zone of the rectifier so as to immerse the transformer.

Abstract: Device for transforming and for rectifying polyphase, in particular three-phase, voltage comprising a polyphase transformer (17) comprising a voided central zone (22), a voltage rectifier circuit (18) that is connected to the transformer and a fan (20). The voltage rectifier circuit includes at least three heat dissipation units (18a, 18b, 18c) forming a right prism of regular polygonal section comprising a voided central zone (23), the transformer, the voltage rectifier circuit and the fan being positioned such that at least some of the airflow produced by the fan flows through the voided central zone of the rectifier so as to immerse the transformer.

Abstract: An optical lighting system for an aircraft includes an optical unit that can be configured according to the phases of flight or taxiing of the aircraft in order to emit a beam of light the spread and aim characteristics of which are dependent on the said phases of flight or of taxiing.

Abstract: An internal combustion heat engine, of which the architecture of one elementary “cylinder” includes 4 identical mobile couplings distributed about the Z axis of the engine, consisting of a segmented “piston” driven by the crank pin of a crankshaft and guided by a roller rolling in a slide. The crankshafts, which are parallel and synchronized by a gear mechanism, perform one revolution per cycle. Each piston includes a sliding surface that nearly touches the cylinder face of the adjacent piston, but on which the segmentation slides in sealed contact. The concave shape of the 4 overlapping faces encloses a chamber volume that changes cyclically: at a minimum, having a quasi-spherical shape during combustion, reducing the heat losses at the walls, and at a maximum, uncovering the ports allowing intake and exhaust via transfer units and manifolds with the possibility of more economical Miller/Atkinson distribution, via rotary plates.

Abstract: A battery unit comprises a plurality of accumulators distributed in rows, a support arranged along a row of accumulators of the plurality of accumulators, conductive strips attached to the accumulators of the row and extending over the support, a guide, the support being suitable for sliding into the guide, a metal strip extending in the guide, deformable electrical connectors fixed to the metal strip and designed to come into contact with the conductive strips when the support is fully inserted in the guide, and metal portions distributed along the metal strip, in contact with the metal strip.

Abstract: A battery unit comprises a plurality of accumulators distributed in rows, a support arranged along a row of accumulators of the plurality of accumulators, conductive strips attached to the accumulators of the row and extending over the support, a guide, the support being suitable for sliding into the guide, a metal strip extending in the guide, deformable electrical connectors fixed to the metal strip and designed to come into contact with the conductive strips when the support is fully inserted in the guide, and metal portions distributed along the metal strip, in contact with the metal strip.

Abstract: An internal combustion heat engine, of which the architecture of one elementary “cylinder” includes 4 identical mobile couplings distributed about the Z axis of the engine, consisting of a segmented “piston” driven by the crank pin of a crankshaft and guided by a roller rolling in a slide. The crankshafts, which are parallel and synchronised by a gear mechanism, perform one revolution per cycle. Each piston includes a sliding surface that nearly touches the cylinder face of the adjacent piston, but on which the segmentation slides in sealed contact. The concave shape of the 4 overlapping faces encloses a chamber volume that changes cyclically: at a minimum, having a quasi-spherical shape during combustion, reducing the heat losses at the walls, and at a maximum, uncovering the ports allowing intake and exhaust via transfer units and manifolds with the possibility of more economical Miller/Atkinson distribution, via rotary plates.

Abstract: The invention relates to a control circuit (3) for an electric motor, in particular for driving a windshield wiper, including a control means (16) comprising an output for controlling the electric motor, the control means being capable of varying the angle of the motor between a given minimum value and maximum value. In particular, the control means (16) comprises an input for receiving a speed set point and is capable of controlling the angular speed of the motor according to the speed set point, the control circuit likewise including a set point means (14) comprising an input for receiving values of the angle of the motor and an output for providing a speed set point to the control means, the set point means (14) being capable of determining the speed set point from a continuous function of the motor angle.

Abstract: An optical lighting system for an aircraft includes an optical unit that can be configured according to the phases of flight or taxiing of the aircraft in order to emit a beam of light the spread and aim characteristics of which are dependent on the said phases of flight or of taxiing.

Abstract: The invention relates to a control circuit (3) for an electric motor, in particular for driving a windshield wiper, including a control means (16) comprising an output for controlling the electric motor, the control means being capable of varying the angle of the motor between a given minimum value and maximum value. In particular, the control means (16) comprises an input for receiving a speed set point and is capable of controlling the angular speed of the motor according to the speed set point, the control circuit likewise including a set point means (14) comprising an input for receiving values of the angle of the motor and an output for providing a speed set point to the control means, the set point means (14) being capable of determining the speed set point from a continuous function of the motor angle.

Abstract: Luminous signaling device, in particular intended to be mounted on board an aircraft, comprising a plurality of lighting elements mounted on a support and elements for shaping the radiation emitted jointly by the lighting elements the said shaping elements being provided with reflection elements whose reflecting surfaces comprise at least one substantially conical portion. The optical axes of the lighting elements are oriented substantially perpendicularly with respect to a direction to be lit.