Hydromechanical compound transmission with reversing gear means

Claim 1

A HYDROMECHANICAL CHANGE SPEED TRANSMISSION PARTICULARLY FOR DIESEL ENGINE POWERED RAIL VEHICLES COMPRISING, IN COMBINATION: A DRIVE GEAR AT ONE SIDE OF THE TRANSMISSION, A HYDRAULIC TORQUE CONVERTER AND A HYDRAULIC CLUTCH OPERATIVELY CONNECTED TO SAID TORQUE CONVERTER AND FORMING A UNIT THEREWITH PLACED ON THE OPPOSITE SIDE OF THE TRANSMISSION, SAID TORQUE CONVERTER AND SAID HYDRAULIC CLUTCH BEING CAPABLE OF BEING FILLED WITH AND RELIEVED FROM AN OPERATING FLUID, SAID TORQUE CONVERTER INCLUDING A PUMP WHEEL AND A TURBINE WHEEL, SAID HYDRAULIC CLUTCH INCLUDING A ROTATABLE HOUSING FORMING A FIRST BLADE WHEEL AND BEING CONNECTED FOR ROTATION WITH SAID TURBINE WHEEL, AND A SECOND BLADE WHEEL, A PRIMARY SHAFT EXTENDING THROUGH THE TRANSMISSION AND OPERATIVELY CONNECTING SAID DRIVE GEAR TO SAID PUMP WHEEL FOR DRIVING SAID PUMP WHEEL, A FIRST HOLLOW SHAFT COAXIAL OF SAID PRIMARY SHAFT AND CONNECTED TO SAID BLADE WHEEL FOR ROTATIO THEREWITH, SPEED CHANGE GEAR MEANS HAVING A PLURALITY OF GEAR TRAINS, SAID GEAR TRAINS EACH HAVING FIRST AND SECOND GEAR WHEELS, SAID FIRST GEAR WHEELS OF SAID GEAR TRAINS BEING CARRIED ON SAID FIRST HOLLOW SHAFT, SAID SPEED CHANGE GEAR MEANS INCLUDING A PLURALITY OF MECHANICAL CLUTCHES SO CONSTRUCTED AND ARRANGED THAT ONLY ONE OF SAID GEAR TRAINS IS CAPABLE OF TRANSMITTING TORQUE AT A TIME, DEPENDING ON THE POSITION OF SAID MECHANICAL CLUTCHES, TORQUE BYPASS MEANS HAVING A FIRST GEAR WHEEL, AND A SECOND GEAR WHEEL ENGAGED BY SAID FIRST GEAR WHEEL, A SECOND HOLLOW SHAFT COAXIAL OF SAID PRIMARY SHAFT AND HAVING A PORTION INTERPOSED BETWEEN SAID PRIMARY SHAFT AND SAID FIRST HOLLOW SHAFT, SAID SECOND HOLLOW SHAFT BEING CONNECTED TO SAID SECOND BLADE WHEEL OF SAID HYDRAULIC CLUTCH FOR ROTATION THEREWITH, SAID FIRST GEAR WHEEL OF SAID TORQUE BYPASS MEANS BEING CARRIED ON SAID SECOND HOLLOW SHAFT, MEANS CONSTRUCTED AND ARRANGED TO CONNECT SAID FIRST GEAR WHEEL OF SAID BYPASS MEANS TO SAID SECOND HOLLOW SHAFT FOR ROTATION THEREWITH, AND A SECONDARY SHAFT PLACED PARALLEL TO SAID PRIMARY SHAFT AND CARRYING THE SECOND GEAR WHEELS OF SAID PLURALITY OF GEAR TRAINS, SAID SECOND GEAR WHEEL OF SAID BYPASS MEANS BEING CONNECTED TO SAID SECONDARY SHAFT FOR ROTATION THEREWITH, SAID TORQUE BYPASS MEANS BEING PLACED NEXT TO SAID DRIVE GEAR, SAID SPEED CHANGE GEAR MEANS BEING PLACED NEXT TO SAID BYPASS MEANS, AND SAID HYDRAULIC CLUTCH BEING PLACED BETWEEN SAID SPEED CHANGE GEAR MEANS AND SAID TORQUE CONVERTER.