Abstract: The invention relates to an electrical connection system for a motor vehicle with electric drive so as to make it possible to electrically connect means of electrical energy storage of the vehicle to an electrical source with a view to their charging, characterized in that it comprises: at least one electrically conducting bar extending in such a way as to be accessible from beneath the vehicle between front and rear regions thereof, each electrically conducting bar comprising an electrically conducting active surface connected electrically to the means of electrical energy storage of the vehicle, the active surface being intended to come into contact with complementary means of the electrical source, protection means for protecting the active surface of the electrically conducting bar, the bar and the protection means being able to move relative to one another between a so-called charging position where the active surface of the bar is disengaged from the protection means and a so-called off-charge position

Abstract: The invention relates to a rotary electric machine with an eccentric rotor that comprises a stator and an eccentric rotor, the stator including a plurality of magnetic poles circumferentially distributed in order to define a closed cylindrical space, the rotor having a generally cylindrical shape with a diameter lower than that of said closed space and including a plurality of magnetic poles circumferentially distributed, the rotor rotating inside the closed space, wherein the machine further includes a shaft depending on the rotational component of the rotor, said machine being characterized in that, at the area of electromagnetic interaction between the stator and the rotor, the evolute of a stator pole and the evolute of a rotor pole have substantially equal lengths.

Abstract: The invention relates to a device (1, 1?, 1?) for cooling an optical fiber (13), including two portions (20, 29), each of the portions (20, 29) including at least one receiving surface (204, 294) on which a half-channel (240, 2490) is provided, such that, once the two portions (20, 29) are placed in contact at the receiving surface (204, 294) thereof, the two portions (20, 29) form a main through-channel for accommodating the passage of the optical fiber (13), characterized in that each of the portions (20, 29) is a block of a thermally conductive material and in that at least one (20) of the portions includes a cylindrical secondary channel (209), which is in fluid connection with a plurality of openings (2046) distributed along the half-chatmel (2040) of said portion (20), in order to form a heat-trans for fluid distribution chamber for the plurality of openings (2046).

Abstract: The invention relates to a device for guiding an optical fiber (2), which is intended to he mounted on a vertical tower (T) for manufacturing an optical fiber (2), the fiber being produced from an oven (18) located at the upper portion of the tower (T) and being moved vertically downward relative to the tower (T), the guide device (1) being located downstream of the oven (18), the device including: a first guide pulley (10), at least one surface (1220) for twisting the fiber (2), which is located downstream of the first guide pulley (10), a second guide pulley (14) located downstream of the at least one surface (1220) for twisting the fiber (2), and a deflecting pulley (16), the distance (C) between the first guide pulley (10) and the at least one surface for twisting the fiber (1220) being greater than the distance (D) between the at least one surface for twisting the fiber (1220) and the second pulley (14), the device being characterized in that it timber includes a second surface (1222) for twisting the op

Abstract: The invention relates to an electrical coupling system for an electrical charging device having energy storage means of an electrically driven motor vehicle, characterized in that it comprises a support that can be plugged into a recess made in the floor, at least two electrically conducting plates in the support, the plates being electrically connected to the charging device, movement means, capable of moving the plates between a retracted position and an exposed position on the ground, and at least one protective element intended to cover the recess in which the plug-in support is housed when the plates have been retracted.

Abstract: The invention relates to an electrical connection system for a motor vehicle with electric drive so as to make it possible to electrically connect means of electrical energy storage of the vehicle to an electrical source with a view to their charging, characterized in that it comprises: at least one electrically conducting bar extending in such a way as to be accessible from beneath the vehicle between front and rear regions thereof, each electrically conducting bar comprising an electrically conducting active surface connected electrically to the means of electrical energy storage of the vehicle, the active surface being intended to come into contact with complementary means of the electrical source, protection means for protecting the active surface of the electrically conducting bar, the bar and the protection means being able to move relative to one another between a so-called charging position where the active surface of the bar is disengaged from the protection means and a so-called off-charge position

Abstract: The invention relates to an electrical coupling system for an electrical charging device having energy storage means of an electrically driven motor vehicle, characterized in that it comprises a support that can be plugged into a recess made in the floor, at least two electrically conducting plates in the support, the plates being electrically connected to the charging device, movement means, capable of moving the plates between a retracted position and an exposed position on the ground, and at least one protective element intended to cover the recess in which the plug-in support is housed when the plates have been retracted.

Abstract: The invention relates to a rotary electric machine with an eccentric rotor that comprises a stator and an eccentric rotor, the stator including a plurality of magnetic poles circumferentially distributed in order to define a closed cylindrical space, the rotor having a generally cylindrical shape with a diameter lower than that of said closed space and including a plurality of magnetic poles circumferentially distributed, the rotor rotating inside the closed space, wherein the machine further includes a shaft depending on the rotational component of the rotor, said machine being characterised in that, at the area of electromagnetic interaction between the stator and the rotor, the evolute of a stator pole and the evolute of a rotor pole have substantially equal lengths.

Abstract: A flexible energy-transfer ribbon that includes a magnetized-tape (3) composed of an elastomer material forming a matrix in which are embedded particles that impart to it a permanent magnetism oriented in the direction of the thickness of the said tape. At least one energy-transfer device (2) lies along the support tape, and a coating material (1) in which the (or each) energy-transfer device is embedded adheres to the magnetized tape. The magnetized tape is subdivided into successive sections of such a length that dimensional changes induced in the magnetized tape, in particular under the effect of temperature differences, induce stresses between the magnetized tape and the coating material which are sufficiently small to prevent weakening of the adhesion between the magnetized tape and the coating material.

Abstract: A magnetic coupler with hysteresis (1) has an inductor subassembly (2) and an armature subassembly (6) that are capable of rotating one with respect to the other. The inductor subassembly has a plurality of magnetic poles and the armature subassembly (6) has one or more armature permanent magnets with hysteresis (11, 12). The invention is notable in that the or each armature magnet is produced in the form of a ring of one piece in magnetic material with vertical hysteresis and has through-slots for attenuating radial currents each running in the direction of the circumferential spread of the ring. Application to limiting heating and reducing axial bulk.

Abstract: The invention relates to an assembly comprising a power transmitter (E) and a power receiver (R) respectively comprising a primary coil (11) and a secondary coil (22), in which the transmitter and the receiver are of the electromagnetic induction type and allow on the one hand the powering without electrical contact of the receiver by the transmitter, and on the other hand a bidirectional communication without electrical contact between the transmitter and the receiver.

Abstract: In the method of producing metals or metal alloys of high purity, in particular metallic chromium, granules of metal containing non-metallic inclusions and a reducing agent are treated under predetermined conditions of temperature and pressure so that the reducing agent reacts on the inclusions. During the treatment, the granules (26) are placed in a crucible (2) having an opening (14), and a wall (4) presenting at least one orifice (24).

Abstract: The invention relates to a method of producing granules made of high purity metal or metal alloy, in particular based on chromium, the method being characterized in that it comprises the steps consisting in: preparing a metal or a metal alloy having non-metallic inclusions essentially comprising oxides of the base metal; pelletizing the metal or the alloy with a reducing agent in order to form the pellets or tablets; treating the pellets or tablets in a vacuum in order to enable the reducing agent to react on the inclusions without substantial sublimation of the metal or the metals of the alloy; and eliminating a surface layer from the pellets or tablets. The invention is applicable to manufacturing mechanical parts out of superalloys.

Abstract: The invention relates to a device for injecting thermoplastic material in a liquid state into a mould cavity. A distributor (27) of thermoplastic material in a liquid state, supplying at least one injection nozzle (17), is arranged between a matrix (1), defining at least one mould cavity (4) into which at least one nozzle (17) flows, and a spring release (36), respectively with the aid of a front plate (50) and, preferably, a rear plate (51), of a flat-resting thermally insulating material, in a manner that is as continuous as possible, on a surface (that is as large as possible) of a front surface (26) of the distributor (27) and a rear surface (29) of the matrix (1), preferably on a surface (that is as large as possible) of the rear surface (34) of the distributor (27) and the front surface (37) of the spring release (36) respectively.

Abstract: The present invention relates to an injector device for injecting thermoplastic material. The device comprises a dispenser (8) feeding a transit passage (12) of an injector nozzle (7) with thermoplastic material, said passage opening out into the mold cavity (2) and being capable of being closed by a sliding needle (21). The needle (21) presents an extender (24) which passes through the dispenser (8) into ambient air via guide means (38) in order to co-operate with controlled means (30) for moving the needle (21). Sealing is provided between the extender (24) and the guide means (38) by the thermoplastic material itself, which material leaks between them from the dispenser (8) and accumulates in an annular groove (43) in one of them. The invention is applicable to injection molding devices.

Abstract: The invention concerns a signal generator comprising a reference signal generator consisting of a microcontroller, a chopping switch, a sensor for sampling, and a comparator for delivering a value based on the difference between a sample signal and a reference signal. The signal generator also is configured to control the chopping switch and designed to deliver to the switch control level(s) which is/are based on the result(s) of said comparison. The invention is characterized in that the microcontroller comprises one or more input(s) receiving the result(s) of the comparison(s), and one or more output(s) through which the microcontroller is configured to deliver control level(s) to the chopping switches. Also, the microcomputer is programmed to update at predetermined times the control level(s) delivered on the basis of the received comparison result(s).

Abstract: A device for injecting material in a plastic state into a moulding cavity is presented. The device includes a distributor of material in a plastic state including at least one outlet for material in a plastic state, placed along a preset axis. The device also includes an injection nozzle including at least one component which is connected to the distributor by a detachable connection and defines for the injection nozzle a front surface configured in such a way as to become integral with the moulding cavity. The injection nozzle includes at least one channel for material in a plastic state, placed along the axis, placed in a fluid relationship with the outlet, and emerging in the front surface. The device controls blanking of the channel.

Abstract: In a device for spooling and unspooling a power cable or the like on relative displacement of two areas connected to each other by the cable or the like, spooling and unspooling of the cable are powered by an asynchronous motor whose output shaft is permanently engaged without slip with the cable spooling and unspooling drum. The speed and rotation direction of the motor output shaft are controlled in relation to the measured tension in the cable by variable frequency control of the supply of power to the motor to maintain the tension at an approximately constant value. Provision is made for applying calibrated undirectional braking to the output shaft of the motor in the direction corresponding to the cable unspooling direction. This maintains motor control during unspooling of the cable.

Abstract: An aluminothermic welding device. The device, which is for the butt welding of two metal members such as railroad rails, comprises a mould and a crucible the respective upper and lower faces of which are so formed with mutually complementary respective depressions and/or reliefs as to enable the crucible to be placed on the mould in a position in which the discharge aperture of the crucible and the pouring bush of the mould are coaxial and turned downwards and upwards respectively. This ensures the correct positioning of the crucible in relation to the mould. The crucible can also be constructed in a form enabling it to be used once and from a material selected for this purpose and advantageously differing from the material used for the mould.

Abstract: A process for producing an electrical supply rail comprising the following steps: (a) producing a mounting body and a wearing plate between rebates of the mounting body and edges of the wearing plate, interposing a sheet of electrically conductive material between the mounting body and the wearing plate; (b) mutually superposing faces of the mounting body and the wearing plate transversely with interposition of the sheet of electrically conductive material having a fusion temperature below those of the mounting body and of the wearing plate; (c) causing the fusion of the sheet by heating and exerting a stress on the mounting body and on the wearing plate; and (d) cooling the solidification of the continuous longitudinal film.