Vorrichtung zur Regelung der Geschwindigkeit von Foerderfahrzeugen mit einem linearen Motor

摘要

Speed control system for linear induction motors in transportation devices or conveyors wherein the gap of the linear motor or of the active surfaces of the motor are varied. Control means modify the spacing of the magnetic cores defining the gap of the motor. Load-detecting means govern the control means to automatically change the gap and the output of the motor to obtain constant speed.