OIL PUMP, ENGINE COVER AND ENGINE COMPRISING THE SAME

摘要

An oil pump is provided. The oil pump comprises a shell (1), a rotor mounting part (11) on the shell (1), and a rotor mechanism (2) disposed on the rotor mounting part (11). The shell (1) has an inlet (161) and an outlet (162) and defines a low-pressure oil chamber (12) and a high-pressure oil chamber (13) therein. A buffer chamber (14) is defined between the low-pressure oil chamber (12 and the high-pressure oil chamber (13), and a barrier wall (41) is disposed between the buffer chamber (14) and the low-pressure oil chamber (12). An engine cover comprising the oil pump and an engine comprising the engine cover are also provided.