Oil pump, engine cover and engine comprising the same

摘要

An oil pump is provided. The oil pump comprises a shell, a rotor mounting part disposed at an end of the shell, and a rotor mechanism disposed on the rotor mounting part. The shell has an inlet and an outlet and defines a low-pressure oil chamber and a high-pressure oil chamber therein. The high-pressure oil chamber and the low-pressure oil chamber are located at the same side of a periphery of the rotor mounting part. An engine cover comprising the oil pump and an engine comprising the engine cover are also provided.

主权项

1. An oil pump, comprising:
a shell having an inlet and an outlet and defining a low-pressure oil chamber and a high-pressure oil chamber therein, the low-pressure oil chamber having a low-pressure oil passage connected to the inlet, the high-pressure oil chamber having a high-pressure oil passage connected to the outlet, a rotor mounting part disposed at an end of the shell and having a rotor supporting structure; and a rotor mechanism disposed on the rotor mounting part, wherein the high-pressure oil chamber and the low-pressure oil chamber are located at the same side of a periphery of the rotor mounting part, wherein a buffer chamber is defined between the low-pressure oil chamber and the high-pressure oil chamber, and wherein the buffer chamber, the high-pressure oil chamber and the low-pressure oil chamber are located at the same side of the periphery of the rotor mounting part.