Two-stroke engine

Abstract

The invention provides a two-stroke engine, and belongs to the technical field of engines. The two-stroke engine solves the problems that an existing engine is low in transmission efficiency and lubricating efficiency. The two-stroke engine comprises a crankcase, wherein an oil pump and an air inlet valve seat are connected to the outer side wall of the crankcase; one end of the oil pump is connected with an oil inlet pipe; one end of the air inlet valve seat is connected with a carburetor, and the air inlet valve seat is communicated with the carburetor; one end of the oil inlet pipe is communicated with the air inlet valve seat; a crankshaft is arranged in the crankcase; a worm gear is connected to a pump shaft of the oil pump; a worm is arranged on the crankshaft in a sleeved mode, the crankshaft is fixedly connected with the worm, the worm is meshed with the worm gear, and the worm and the worm gear are arranged in the crankcase. The two-stroke engine has the advantage that lubricating efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of engines and relates to a two-stroke engine. Background technique [0002] During the operation of the two-stroke engine, the mixed gas of engine oil and gasoline needs to be mixed with each other, and the mixed gas is sprayed into the crankcase, enters the cylinder through the scavenging port for compression, and is ignited by the spark plug to push the piston to realize the operation of the engine. In the process of starting the engine, lubricating oil needs to be continuously added, but the proportion of lubricating oil in the manual ratio is certain, which will cause poor lubrication at high speeds, and accidents such as cylinder swelling and shaft locking will occur; small throttle, low speed and idle speed There is too much lubricating oil, poor combustion and easy carbonization; the mixed oil is easy to gel and block the metering hole, making the mixed gas too thin. This causes serious damage to th...

AI Technical Summary

Problems solved by technology

[0002] During the operation of the two-stroke engine, the mixed gas of engine oil and gasoline needs to be mixed with each other, and the mixed gas is sprayed into the crankcase, enters the cylinder through the scavenging port for compression, and is ignited by the spark plug to push the piston to realize the operation of the engine. In the process of starting the engine, lubricating oil needs to be continuously added, but the proportion of lubricating oil in the manual ratio is certain, which will cause poor lubrication at high speeds, and accidents such as cylinder swelling and shaft locking will occur; small throttle, low speed and idle speed There is too much lubricating oil, poor combustion and easy carbon formation; mixed oil is easy to gel and block the measuring hole, making the mixed gas too thin

[0005] Although the above-mentioned two-stroke engine lubricating device solves the problem of poor engine lubrication to a certain extent, because it is a wheel shaft driven by a belt, even if a lubricating oil tank is connected to the oil inlet pipe of the oil pump, in the long-term use process, it is still It is easy to appear, and the situation of belt slippage occurs, which makes the transmission accuracy of the engine low. For the shortcomings of insufficient lubrication, the existing two-stroke engine is that the wheel shaft is in the process of running, and the lubrication is insufficient, and the lubricating oil tank is added to make the entire engine. The structure is relatively complicated, and the transmission accuracy of the engine cannot be completely improved, and it is necessary to continuously add lubricating oil to the axle, which leads to more complicated control of the entire operation process, and further reduces the transmission efficiency and lubrication efficiency of the engine

Images