STEPLESS TRANSMISSION AT PROBABLE CONTROL OF TORQUE Russian patent published in 1999 - IPC

FIELD: mechanical engineering. SUBSTANCE: stepless transmission includes control unit 17 controlled by operator by means of acceleration pedal 18 or other control member, two units of pulleys each of which consisting of shaft and two sheaves, component changing the ratio which is made in form of at least which is engageable with two pulley units, coupling sensitive to torque made in form of ball-and-screw clutch between one pulley unit and its shaft, member for creating axial force between them which is just function of magnitude and direction of torque transmitted by pulley unit and loading members. Stepless transmission ensures control of torque to degree required by modern transport facilities. EFFECT: enhanced efficiency and reliability. 18 cl, 12 dwg