Lubricating oil separating device of two-stroke gasoline engine

Abstract

The invention provides a lubricating oil separating device of a two-stroke gasoline engine. The lubricating oil separating device comprises a crankshaft box body, a crankshaft, a piston, an air cylinder, an air cylinder cover, an air inlet, an air ventilating hole, an air outlet and an air scavenging duct, wherein the crankshaft is mounted and arranged in the crankshaft box body, the piston is positioned at the upper part of the crankshaft box body, the air cylinder cover covers the air cylinder, the air inlet, the air ventilating hole and the air outlet are formed in the air cylinder, the air scavenging duct is formed in the air cylinder and connected with the crankshaft box body in a penetrating through manner, and a filter for filtering lubricating oil in flammable mixed gas is mounted and arranged at a position of the air scavenging duct between the air inlet and the air ventilating hole; the filter comprises S-shaped filtering screens, and the filtering screens can be multilayer. When the flammable mixed gas flows through the filter, lubricating oil particles adhere to the filtering screens of the filter, so that the lubricating oil particles in the flammable mixed gas are filtered, and the flammable mixed gas entering a burning chamber contains a mixture of gasoline and air and little or zero lubricating oil; through the adoption of the lubricating oil separating device disclosed by the invention, the gasoline can be fully burnt, and the problems of high emission and heavy pollution because engine oil is burnt are solved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to the technical field of automobile engines, in particular to a lubricating oil separation device for a two-stroke gasoline engine. Background technique [0002] A two-stroke gasoline engine refers to an internal combustion engine that completes one working cycle within two strokes. There are three holes on the cylinder block of the two-stroke engine, namely the intake hole, the exhaust hole and the ventilation hole, and these three holes are closed by the piston at a certain moment. Its working cycle consists of two strokes: [0003] 1) The first stroke: the piston moves upward from the bottom dead center, and after the three air holes are closed at the same time, the mixed gas entering the cylinder is compressed; when the air intake hole is exposed, the combustible mixed gas flows into the crankcase. [0004] 2) Second stroke: When the piston is compressed to near the top d...

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Problems solved by technology

[0007] In view of the above-mentioned shortcoming of the prior art, the purpose of the present invention is to provide a lubricating oil separation device for a two-stroke gasoline engine, which is used to solve the problems of high emissions and heavy pollution of the two-stroke gasoline engine in the prior art

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