Gasoline engine pressure lubrication system and its gasoline engine

Abstract

The invention discloses a gasoline engine pressure lubrication system and a gasoline engine thereof, comprising an oil pump casing and an oil pump cover plate matched with the oil pump casing, the oil pump casing includes a rotor mounting seat, a filter screen mounting Groove and cover plate installation column, the oil pump housing and crankcase cover are integrated, the filter screen installation groove is arranged between the oil inlet cavity and the oil inlet hole of the oil pump housing, and the cover plate installation column is set On the outer wall of the rotor mounting seat; the gasoline engine pressure lubrication system and gasoline engine of the present invention, the oil pump housing is integrated on the crankcase, the crankcase is also used as the oil pump housing, and the oil pump housing is provided with a filter installation groove , so not only can the space for the oil pump and oil filter be omitted, but also the cooperation between the oil pump and the oil filter can be better, the number of parts of the gasoline engine can be reduced, the layout of the lubrication system can be optimized, and the complexity of the assembly process can be reduced at the same time. The cost of production and assembly is reduced, and the requirements of gasoline engines, especially general-purpose gasoline engines, are met.

Description

Technical field [0001] The invention relates to a power machine component and its application, in particular to a gasoline engine component and its application. Background technique [0002] Gasoline engine is a kind of power machinery that uses gasoline as fuel. It is composed of cylinder, crank and connecting rod mechanism, gas distribution system, fuel supply system, lubrication system and ignition system. General-purpose gasoline engines refer to reciprocating piston gasoline engines with a wide range of uses in addition to automotive and aviation applications. The general power is less than 20kW. Most of them are very versatile and some are highly professional, so they are generally called small gasoline engines. General gasoline engines are characterized by simple structure, easy operation and low cost. They are mainly used in agriculture, forestry and plant protection machinery, garden machinery, small machines, generator sets, construction machinery, fire fighting machine...

AI Technical Summary

Problems solved by technology

The pressure lubrication system of this structure results in a large number of parts of the gasoline engine, which is not conducive to the optimization of the layout of the lubrication system. At the same time, it increases the complexity of the assembly process, increases the production and assembly costs, and cannot meet the needs of gasoline engines, especially general-purpose gasoline engines.

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