General high-speed engine

Abstract

The invention relates to a combustion engine, in particular to a general high-speed engine. The high-speed engine comprises a crankcase, a cylinder body, a cylinder head, a crank shaft mechanism, an air-distributing mechanism, a power generation structure, a lubricating structure and a cooling structure which are connected in sequence, wherein the crank shaft mechanism comprises a crank shaft and a connecting rod; the crank shaft is arranged in the crankcase; the cooling structure comprises a magneto, a cooling fan and a wind scooper; the magneto is arranged outside the crankcase; an output end of the magneto is connected with the cooling fan; the cooling fan and the cylinder body are positioned in the wind scooper; the air-distributing mechanism comprises a cam shaft, a cam, a rocker arm, an intake valve and an exhaust valve; the power generation structure comprises a flying wheel, a permanent magnet and a stator; the lubricating structure comprises an engine oil pump, an oil inlet passage, an oil outlet passage and an oil outlet. The high-speed engine provided by the invention is relatively simple in structure and small in overall size, so that the high-speed engine is convenient to carry; the rotation speed of the crank shaft is higher.

Description

technical field [0001] The invention relates to a combustion engine, in particular to a general-purpose high-speed engine. Background technique [0002] General-purpose small gasoline engine is a kind of motor tool equipment, referred to as general machine, referring to gasoline engines other than those used for vehicles and special purposes, and its rated power is generally below 30kW. It is mainly used as supporting power for agricultural and forestry plant protection machinery, small agricultural machinery, garden machinery, generator sets, construction machinery, outboard machinery, etc. Because of its small size, light weight, low price, and convenient use, the general-purpose small gasoline engine occupies an important position in various machine tools. Especially among the knapsack machines, the general-purpose small gasoline engine is the only supporting power. The general-purpose small gasoline engine is the same as the general internal combustion engine, has a ba...

AI Technical Summary

Problems solved by technology

Therefore, the four-stroke engine is more and more popular; and with the continuous improvement of the processing technology level and the wide application of new technologies such as fuel electronic injection, the existing four-stroke general engine has a relatively complicated structure and a large overall volume. , so it is inconvenient to carry during use; in addition, due to the limitations of lubrication, heat dissipation and other conditions, the speed of the existing general machine cannot be too high

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