Gasoline engine

Abstract

The invention relates to a gasoline engine, wherein a crankcase cover is combined with a crankcase body; the both ends of the crank can be separately supported on the crankcase body and the crankcase cover in a rotating manner; a timing gear on the crank is meshed with the gear of a gas distribution camshaft; the cavity of the crankcase cover is provided with a mounting bracket; a gear plate used for stirring and splattering lubricating fluid is connected with the mounting bracket through a mandrel in a rotating manner and arranged between the concave arc surface of the crankcase cover and the mounting bracket; the end surface facing to the mounting bracket, of the gear plate is provided with a plurality of ribs which extend radially; the ribs extend out of the circumference of the gear plate; gaps are left between the ribs and the mounting bracket; the other end surface of the gear plate is provided with end teeth, the end teeth are meshed with the gear of the gas distribution camshaft; and the crankcase body is provided with a respiratory slot, and the respiratory slot is communicated with a crank supported hole on the crankcase body through an arranged channel. The gasoline engine has the gear plate which can beat lubricating oil in high speed, thus the internal lubrication of the engine can be improved and the gradient of the engine in operation can be increased.

Description

technical field [0001] The invention relates to a gasoline engine, in particular to a gasoline engine which lubricates moving parts in a crankcase by stirring lubricating fluid at high speed. Background technique [0002] The existing engine lubrication is pumped into the channel of the lubrication system through the oil pump, and the channel drains the lubricating fluid to the parts that need to be lubricated, and then lubricates. The lubrication range of this lubrication method is limited. The moving parts of the crankcase are often unable to be effectively lubricated, especially once the engine is working in a tilted state, the moving parts in the crankcase will be less lubricated, and the working performance of the engine will be affected. In addition, the crankcase and the crankshaft are rolled and fitted by bearings. The bearings are located above the lubricating oil liquid level, and the bearings cannot be lubricated by the lubricating oil. During high-speed motion, s...

AI Technical Summary

Problems solved by technology

[0002] The existing engine lubrication is pumped into the channel of the lubrication system through the oil pump, and the channel drains the lubricating fluid to each part that needs to be lubricated, and then lubricates. The lubrication range of this lubrication method is limited. The moving parts of the crankcase are often unable to be lubricated effectively, especially once the engine is working in a tilted state, the moving parts in the crankcase will receive less lubrication, and the working performance of the engine will be affected

In addition, the crankcase and the crankshaft are rollingly fitted by bearings. The bearings are located above the lubricating oil liquid level, and the bearings cannot be lubricated by the lubricating oil. During high-speed motion, severe friction will cause bearing damage and shorten the service life of the bearings.

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