Hydraulic torque converter for diesel engine with low rotating speed

The utility model relates to a hydraulic torque converter for a diesel engine with low rotating speed, comprising a cover wheel (1), a first turbine (2), a second turbine (3), a pump pulley (4) and a guide wheel (5) which form a liquid flow circulating circle, wherein the liquid flow circulating circle has the diameter of 338-342mm and the height of 147-153mm; a blade of the first turbine (2) has the inlet blade angle of 101-110 degrees and the outlet blade angle of 145-155 degrees; a blade of the second turbine (3) has the inlet blade angle of 30-42 degrees and the outlet blade angle of 140-152 degrees; a blade of the pump pulley (4) has the inlet blade angle of 100-110 degrees and the outlet blade angle of 94-106 degrees; and a blade of the guide wheel (5) has the inlet blade angle of 80-87 degrees and the outlet blade angle of 19.5-25 degrees. The utility model solves the technical problem that the existing hydraulic torque converter can not be reasonably matched with the diesel engine with low rotating speed, meets the need of being matched with the diesel engine with low rotating speed, has reasonable structure, and improves the output torque and the like.