Internal combustion engine with torque converter

摘要

An internal combustion engine with a torque converter for extending the temperature range of a hydraulic fluid allowing the function of the torque converter toward lower temperatures. A crankshaft is formed with an oil passage extending there along, an inlet hole for supplying a hydraulic fluid to the torque converter and an outlet hole for discharging the hydraulic fluid. The crankshaft includes a shaft bearing for supporting a rotating shaft for the torque converter. The inlet hole is provided at an axial end of the shaft bearing and contacts the shaft bearing. Flow resistance due to the shaft bearing can be greatly reduced to thereby allow a smooth supply of the hydraulic fluid into the torque converter. When the temperature of the hydraulic fluid is low and the viscosity of the hydraulic fluid is high, a quantity of oil at a certain pressure can be supplied to the torque converter.