HYDRAULIC DEVICE FOR DRIVING A SEMI-TRAILER ATTACHED TO A ROAD TRACTOR VEHICLE AND CONSTRUCTION WORKS

摘要

P HYDRAULIC DEVICE FOR DRIVING A SEMI-TRAILER ATTACHED TO A ROAD AND CONSTRUCTION TRACTOR VEHICLE. / P P THIS DEVICE COMPRISES A CLOSED HYDROSTATIC SYSTEM COMPRISING A VARIABLE FLOW RATE HYDRAULIC PUMP 13, AND A HYDRAULIC ENGINE 14 CONNECTED TO THE PUMP 13 BY TWO CIRCUITS 15, 16; THE PUMP 13 IS ACCOUPLED TO THE TAKING OF MOTION 3 BY A CARDANS 17 TRANSMISSION, AND THE ENGINE 14 IS CONNECTED TO THE AXLE 9 OF THE SEMI-TRAILER BY A REDUCING BOX 7 AND A TRANSMISSION 8; ELECTRIC CIRCUIT 31, 32, 33, 37 ENSURES AUTOMATIC HYDROSTATIC SYSTEM 6 SERVICING TO THE GEARBOX 2. / P P THIS ARRANGEMENT ALLOWS TO TRANSMIT A PART OF THE TRACTOR'S POWER TO THE SEMI- TRAILERS IN A PARTICULARLY EFFICIENT AND ADVANTAGEOUS WAY FOR DISPLACEMENTS IN DIFFICULT FIELD. / P