Abstract: A bogie designed to be secured so that it rests on wheels and including at least two wheel axles, at least one side member extending from the axles to an at least approximately central part of the length of the bogie, and axle boxes in which the axles are mounted so that they can rotae. The side member includes at least one interchangeable elastic leaf constituting parametrizable primary suspension, made of composite material based on fibers embedded in a resin, and a region of each end of the side member is housed in a side-member sleeve resting on a respective axle box via at least one insert element.

Abstract: Supply system for an electric traction vehicle equipped with electric traction motors (M1 to M4) supplied by a traction system and pantograph means (2) for connecting the traction system (1) to a catenary (3), characterized in that it furthermore comprises in combination, an autonomous supply device carried on board a vehicle and including a kinetic accumulation of energy system (5) having a rotating machine with rotor forming a flywheel and operating either as a motor, or as a generator, means (2, 18) for connecting the kinetic accumulation of energy system (5) in the charging regime to the mains supply during stoppages of the vehicle in stations, and in the discharging regime, to the traction system (1), the said kinetic accumulation of energy system (5) being a system for recovering the braking energy of the vehicle.

Abstract: Device for supplying electric current to at least one series-excitation motor, characterized in that it includes a chopper comprising a midpoint (M) linked to the rotor of the motor and to which are connected at least one first controlled static switch which is additionally connected to a voltage source for applying a supply current in traction mode to the electric motor and at least one second controlled static switch, additionally linked to earth, for closing a circuit for linking with a load for the motor operating in generator mode during braking and reverse-biased diode-type changeover-switching means for respectively allowing the supply current of the motor delivered by the first controlled static switch to pass in a first direction while the latter is conducting, and for allowing the current delivered to the circuit for linking with the load by the motor operating in generator mode to pass in a second direction through the second controlled static switch when the latter is conducting.

Abstract: A separator is disposed between a grinder and a boiler so as to select, on the basis of size, particles produced by grinding a fuel in the grinder and conveyed by a flow of air from the grinder to the separator, and then to the boiler. The separator extends in an axial direction and includes output compartments, each of which underlies a respective conveyor duct connecting the separator to the boiler. An isolating valve member is mounted to move inside the separator, and is moved in translation in the axial direction either to allow the flow to pass through all of the output compartments into the conveyor ducts or else to prevent said flow from passing therethrough. This isolating valve member makes it possible to close all of the output compartments together. In this way, it is possible to reduce the number of isolating valve members to the number of separators in a grinding installation, regardless of the number of conveyor ducts from each separator.

Abstract: A closure resistor assembly for high voltage electrical gear. The assembly includes a multiplicity of resistive electrical components aligned in a row along an axis, and a mechanism which exerts a compression force on the electrical components along the axis so as to maintain electrical contact between them. The mechanism for exerting the compression force includes a rigid tube within which the electrical components are stacked, and an energy-storing floating structure placed inside the tube at one end of the row of electrical components. The floating structure is constituted by a first piece disposed between the end of the row of electrical components and a second piece that is mounted in a fixed manner inside the tube, together with a spring that is kept in compression between the first and second pieces. The first piece is also mounted so as to be semi-moving between two abutments that are spaced-apart along the axis D.

Abstract: A limiter device for a “dead tank” high voltage circuit breaker having a grounded metal tank, the circuit breaker having two terminals for connection respectively to a high voltage electricity line and to a link leading to a source that is situated upstream and that enables the line to be fed via the circuit breaker. It comprises a capacitor placed outside the tank of the circuit breaker and which is electrically connected between the two terminals of the circuit breaker to limit voltage recovery speeds both upstream and downstream of the circuit breaker, following an interruption due to a line fault.