Hydraulic torque converter is also called "hydraulic torque converter", "turbine torque converter", "hydrodynamic torque converter". A kind of hydraulic transmission parts. It consists of a pump wheel, a turbine and a guide wheel. The pump wheel is connected with the driving shaft, which can convert the mechanical energy input by the driving shaft into the kinetic energy of the liquid and the pressure head by the centrifugal force for the turbine to do work. The turbine is connected with the driven shaft, which can output the kinetic energy of the liquid and the energy contained in the indenter by the driven shaft.