Patent ID: 6589025
Filing Date: 2003-07-08
Classification: F01M,F04C,F16N

Abstract:
An oil pump structure of an engine for receiving, pressurizing, and supplying a lubricating oil to the engine, wherein the oil pump structure is bonded to a crankcase of the engine, said oil pump structure comprising:a main body portion, a base juxtaposed adjacent to one side of the main body portion, and a pump cover juxtaposed adjacent to another side of the main body portion; a relief valve for adjusting a delivery pressure of the lubricating oil; a relief valve chamber formed in a space between the crankcase and an oil pump, said relief valve chamber having an axis substantially parallel to an axis of a rotor rotational shaft; and a relief path from a relief valve formed by directly connecting the relief valve chamber and an intake chamber of the oil pump contiguous thereto.