SYSTEM OF CONTROL FOR GEAR BOX WITH PUMP-MOTOR OF VARIABLE WORKING VOLUME

摘要

FIELD: machine building. ^ SUBSTANCE: gear box consists of two pump-motors of variable working volume, of two driving force transmitting units from primary motor to output link. The gear box control system consists of device detecting zero output volume of one of pump-motors and of device for speed change control. The device for control of speed change inhibits transfer of driving force to one of the transmitting units from the primary motor to the output link, if outlet volume of one of the pump-motors controls is equal to zero. ^ EFFECT: simplified design for fast and even speed change. ^ 13 cl, 20 dwg