Abstract: In an electromagnet having an armature, in particular for use in a solenoid valve, which includes a solenoid coil, a magnet core which passes through the solenoid coil and has at least one pole face, an armature which is supported perpendicularly to the at least one pole face of the magnet core so as to be able to slide and has an armature plate facing the pole face and an armature pin that projects from the armature plate and is supported so as to be able to slide and rotate, and an adjusting arrangement that is formed on the electromagnet and/or on the armature and adjust the armature plate to a predetermined rotational position, it is proposed that at least one first cutout which is radially offset from the armature pin and formed in the armature plate, and at least one second cutout which is situated in the at least one pole face of the magnet core and assigned to the first cutout, be provided as adjusting arrangement; the second cutout magnetically interacting with the first cutout in response to the sol

Abstract: In an electromagnet having an armature, in particular for use in a solenoid valve, which includes a solenoid coil (1), a magnet core (2) which passes through the solenoid coil (1) and has at least one pole face (22), an armature (3) which is supported perpendicularly to the at least one pole face (22) of the magnet core (2) so as to be able to slide and has an armature plate (31) facing the pole face (22) and an armature pin (32) that projects from the armature plate (31) and is supported so as to be able to slide and rotate, and adjusting means which are formed on the electromagnet and/or on the armature and adjust the armature plate (31) to a predetermined rotational position, it is proposed that

Abstract: The device includes a solenoid valve having a supply conduit communicating with the delivery of the pump, a drain conduit, an electromagnet energizable to control an armature controlling a shutter, and reducing means for reducing disturbance in the delivery pressure of the pump when the electromagnet is energized. The reducing means include a chamber having a predetermined volume and located between the supply conduit and the drain conduit; and a fixed shield having an opening in which slides a small-diameter portion of the stem of the armature. The electromagnet is controlled by an electronic unit via a modulator for modulating the duty cycle of the control pulses, and via a circuit for selecting the frequency of the control pulses on the basis of an estimate of hydraulic disturbances depending on at least one operating parameter.

Abstract: A control circuit for supplying a load with current having a high-amplitude ortion with a rapid leading edge, and a lower-amplitude portion. The circuit is input-connected to a low-voltage supply source, and comprises a number of actuator circuits parallel-connected between the input terminals and each including a capacitor and a load. Each actuator circuit also comprises a first controlled switch between the respective load and a reference line, for enabling energy supply and storage by the respective load. A second controlled switch is provided between the capacitor line and the load line, for rapidly discharging the capacitors into the load selected by the first switch and recirculating the load current, or for charging the capacitors with the recirculated load current.