An oxygen-injected two-stroke internal combustion engine and its operating method

Abstract

The invention discloses an oxygen-injection double-stroke internal combustion engine and a running method thereof. The oxygen-injection double-stroke internal combustion engine comprises a high-pressure oxygen pipe and a pressure stabilizing device; a high-pressure nozzle, a spark plug, an oil injector and an exhaust valve are fixed to the top end of the cylinder; the high-pressure oxygen pipe isconnected with the high-pressure nozzle; a pipeline where the high-pressure oxygen pipe is connected with the high-pressure nozzle is provided with the pressure stabilizing device; when the rotation angle of a crank is changed from 230 degrees to 360 degrees, a piston is sequentially subjected to compression, oil injection and spark plug ignition processes; and when the rotation angle of the crankis changed from 0 to 230 degrees, the piston sequentially does work and executes an exhausting process. According to the oxygen-injection double-stroke internal combustion engine disclosed by the invention, an existing four-stroke internal combustion engine is changed into a double-stroke internal combustion engine, a gas feed stroke is canceled, a compression stroke and an exhaust stroke of theoriginal four-stroke internal combustion engine are integrated as one stroke, thus zero emission of NOx is realized, and the emission load of HC is remarkably reduced.

Description

technical field [0001] The invention relates to an oxygen-injected internal combustion engine, in particular to an oxygen-injected two-stroke internal combustion engine and its operating method. Background technique [0002] In recent years, the aggravation of environmental protection issues and the relative shortage of oil resources have led governments to invest more energy in the development and utilization of new energy, the improvement of power plants, and the formulation of stricter regulations to achieve the effective use of resources and the emission of pollutants. reduce. At present, the internal combustion engine is still the most important power machine, and the layout of the automobile industry and the power system of the automobile are still dominated by the engine. In the case of little change in the structure of the engine, it is best to find a technical route to achieve better engine power and emissions. good choice. Because the crankshaft of the two-stroke...

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Problems solved by technology

Because the crankshaft of the two-stroke engine rotates once to do one work, compared with the four-stroke engine, it has the advantages of stable operation and high mechanical efficiency. Therefore, many six-stroke engine inventions based on the four-stroke engine have been produced, but the traditional process is still used. The defects of the exhaust mechanism and the four-stroke engine cannot be completely eliminated, and the wall quenching and the gap effect still exist seriously, which has little effect on improving the combustion efficiency of the engine. In particular, the pollution of nitrogen oxides to the atmosphere cannot be eliminated. The engine structure Complicated and difficult to popularize and apply

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