PERFECTIONNEMENTS AUX VANNES OU DISTRIBUTEURS COMMANDES PAR UN MOTEUR ELECTRO-DYNAMIQUE

摘要

An electrically operated valve or distributor comprises a slide member coupled to an electrodynamic motor. A pulsed current, dependent on a control signal is fed to the windings of the motor. The pulses can have a fixed frequency and variable width, or a fixed width and a variable frequency.