HYDRODYNAMIC VARIABLE-SPEED GEARBOX Russian patent published in 2000 - IPC

FIELD: automobile manufacture; mechanical engineering. SUBSTANCE: gearbox includes primary and secondary shafts located coaxially and connected with engine flywheel and cardan shaft, torque hydrodynamic converter located in case rigidly connected with engine cylinder block; arranged in closed circulation volume of hydrodynamic converter are primary cylinder of pump and additional cylinder of pump rigidly fitted on primary shaft, reactor cylinder of additional torque converter located around additional primary cylinder of pump, reactor cylinder of main torque converter located around primary cylinder of pump and around reactor cylinder of additional torque converter, secondary cylinder turbine rigidly connected with secondary shaft forming closed cylindrical space around main torque converter, additional torque converter, primary cylinder of pump and additional primary cylinder of pump; main and additional torque converters are provided with respective control rods. EFFECT: facilitated manufacture; enhanced durability and efficiency. 11 cl, 37 dwg, 1 tbl