Four-variable two-cylinder two-stroke engine

Abstract

The invention is a four-variable two-stroke engine with two moving cylinders, which comprises an upper half cylinder, a lower half cylinder, a piston and a moving cylinder; the upper half cylinder is provided with a fuel injection nozzle and an air intake valve; the two sides of the lower half of the cylinder block are provided with spark plugs; the top of the piston is provided with two protrusions; the moving cylinder is arranged in the combustion chamber between the piston and the lower half of the cylinder block; the moving cylinder There is a ventilation structure connecting the combustion chamber and the moving cylinder, and the ventilation structure can be triggered by the protrusion on the piston. Compared with the existing four-stroke engine, the present invention makes the four-stroke that originally needs to waste energy for one turn become the two-stroke that can complete the work only by one turn, reducing unnecessary loss of energy; The number of strokes makes the original four-cylinder engine design can be reduced to two cylinders by using the present invention, which greatly reduces the space occupancy rate of the engine.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a four-variable two-moving cylinder two-stroke engine. Background technique [0002] In the current four-stroke engine, the four strokes are completed independently in sequence during the working process. The piston needs to go back and forth twice every time it does work, that is, when doing a work, the crankshaft connected by the piston and connecting rod needs to rotate two times, and one of them is completely in the middle. consume energy. [0003] The disadvantage of the existing two-stroke engine is: because there is no independent lubrication space, it is necessary to mix engine oil with gasoline to achieve the purpose of lubrication; in addition, its most fatal disadvantage is that there will be a part of unburned gas in its scavenging process. The oil mixed gas is discharged together with the exhaust gas through the exhaust gas discharge port, so the existin...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of energy consumption that the piston goes back and forth twice and the crankshaft rotates twice to do work once when the four-stroke piston is doing work, that is, it only needs to turn one circle to do work once, that is, it integrates the existing four-stroke and existing A new generation of two-stroke engine that combines the advantages of two-stroke. This engine has both the violent output of the existing two-stroke and the complete systems of the four-stroke.

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