Abstract: An electrical power supply apparatus, especially for a motor vehicle electrical system, comprising at least two power supply sources (1, 2) which are both connected between ground and a supply line, and each of which comprises at least one induced current winding and a bridge of rectifier elements (P1, P2), characterised in that one of the two said sources comprises an auxiliary bridge of rectifier elements of positive type (Paux1), the other one comprising an auxiliary bridge of rectifier elements of negative type (Paux2), with means (I; Dc1, Dc2, Dc3; Id), connected to each of the said two bridges and being adapted to be controlled for the purpose of: in a first state, connecting the two auxiliary bridges (Paux1; Paux2) in series, the rectified voltage supplied to the power supply line then being the sum of the voltages supplied by the induced current winding or windings of each of the two sources and then rectified, in a second state, blocking the connection between the two auxiliary bridges (Paux1; Paux

Abstract: An electrical power supply apparatus, especially for a motor vehicle electrical system, comprising at least two power supply sources (1, 2) which are both connected between ground and a supply line, and each of which comprises at least one induced current winding and a bridge of rectifier elements (P1, P2), characterised in that one of the two said sources comprises an auxiliary bridge of rectifier elements of positive type (Paux1), the other one comprising an auxiliary bridge of rectifier elements of negative type (Paux2), with means (I; Dc1, Dc2, Dc3; Id), connected to each of the said two bridges and being adapted to be controlled for the purpose of:

Abstract: A bearing assembly for a rotary shaft machine, the assembly comprising a ball or rotary bearing mounted between a bearing support and the shaft, the bearing comprising an outer ring and an inner ring between which rolling elements are interposed, the outer ring being held rigidly to the support, the inner ring and the shaft being slidable relative to each other, the bearing assembly further comprising at least one washer mounted between the inner ring and a shoulder of the shaft and exerting force between the inner ring and the shoulder tending to move them apart to take up operating slack, wherein the washer presents a flat annulus and a plurality of trapezium-shaped resilient tabs extending radially from the annulus, each presenting a portion that is inclined relative to the plane of the annulus and each being terminated by an end flat parallel to the plane of the annulus.

Abstract: A circuit for regulating the voltage at which a battery is charged by an alternator compares a reference with first data derived from the alternator voltage to generate a first excitation control signal. The circuit further comprises:means for storing second variable data;means comparing a reference with said second data to generate a second excitation control signal;control means for the second data an acting on the first and second control signals to cause said second data to vary in correspondence with variations in the first data, but at a slower rate, whenever there is a sudden increase in current demand on the alternator; andselector means active under such circumstances to cause excitation to be controlled by means of said second control signal, thereby ensuring that excitation of the alternator is increased progressively.

Abstract: The invention relates to a device for supplying electricity at overvoltage in an automobile.Automobile circuits comprise a main circuit (1) and an auxiliary circuit (2) requiring to be temporarily supplied at overvoltage. The main circuit is normally supplied by a battery (3) fed by an alternator (4) of which the excitation circuit is regulated by a regulator (5). In accordance with the invention, the device includes commutation means (6) controlled from the stator output of the alternator on the auxiliary load (2), the excitation of the alternator (4) following this commutation being taken via the regulator (5) to a sufficient value as a function of the state of the engine (M) for assuring a temporary supply state of the auxiliary circuits (2) at overvoltages and at reduced current.Application to supply of electric circuits of automobiles or the like.