AN INNER ROTOR OIL DRAIN STRUCTURE FOR CRANKSHAFT TYPE OIL PUMP

摘要

An inner rotor oil discharge structure of a crank shaft direct-coupled oil pump discharges oil flowing into the gap between an oil pump housing and an outer rotor or an inner rotor more smoothly because an oil discharge groove of an inner rotor is angled. An inner rotor oil discharge structure of a crank shaft direct-coupled oil pump comprises a crank shaft(10) which is directly connected an inner rotor(20), and an oil discharge groove(21) which is formed in the top and lower part of the inner rotor. The oil discharge groove is angled from a pulley(50) to the engine. The tilt angle of the oil discharge groove of the inner rotor is 3°~10°.