OIL PUMP

摘要

The invention relates to an oil pump using internal gearing, wherein the internally toothed external gear or stator (3) and the externally toothed internal gear or rotor (4) have trochoidal tooth profiles, the stator has one more tooth than the rotor, and wherein the inner rotor (4) is directly connected to the crankshaft of an internal combustion engine or to the transmission shaft thereof.