The axial flow torque converter specified in this standard is suitable for the lifting mechanism of grab dredgers and engineering ships, as well as rail cranes, excavators, cranes, etc. The axial flow torque converter is a single stage; the turbine type is axial flow, and the impellers are arranged in the order of the pump wheel, turbine and guide wheel according to the direction of the axial liquid flow. Under traction conditions, the turbine and pump impeller rotate in the same direction.