Cylinder interior and exterior cold water mixing dual-spraying gasoline engine structure

Abstract

The invention relates to a cylinder interior and exterior cold water mixing dual-spraying gasoline engine structure which comprises a gasoline engine body, a gas inlet manifold, a gas exhaust manifold, an oil sprayer, a sparking plug, a cylinder interior water sprayer, a high-pressure water pump unit communicating with the cylinder interior water sprayer, a cylinder exterior water sprayer arrangedin the gas inlet manifold, a lower-pressure water pump unit communicating with the cylinder exterior water sprayer, and an electronic controller, wherein the gas inlet manifold and the gas exhaust manifold are arranged on the gasoline engine body, and the sparking plug and the cylinder interior water sprayer are arranged in the gasoline engine body. Compared with the prior art, cold water sprayedinto a cylinder is utilized to absorb heat, the temperature, nearby the burning upper dead center, in the cylinder is decreased, the knocking trend is inhibited, and meanwhile, the cold water servesas an extra working medium, so that the heat efficiency of a gasoline engine is improved, and fuel economy and emission performance are improved; and water is sprayed in the gas inlet manifold, heat is absorbed through evaporation of the water, the temperature of gas entering the air cylinder is decreased, the gas inlet density is increased, charging coefficients are increased, thus the power perliter of the gasoline engine is improved, and power performance is improved.

Description

technical field [0001] The invention belongs to the technical field of internal combustion engines, and relates to a gasoline engine structure with dual injection of cold water inside and outside the cylinder. Background technique [0002] The rapid development of motor vehicle technology has brought great convenience to human society, but it has also brought a series of negative effects such as energy and environmental pollution. The energy consumption of motor vehicles has received widespread attention, and fuel consumption and emission standards have become increasingly stringent. Therefore, energy saving and emission reduction has also become the main theme of the development of the motor vehicle industry. [0003] In order to further improve the working efficiency of motor vehicles and reduce energy consumption, the technology of supercharging and miniaturization of internal combustion engines has been proposed. The miniaturization technology of internal combustion en...

AI Technical Summary

Problems solved by technology

However, the previous technical research was limited to spraying water only in the cylinder, which limited the further improvement of the thermal efficiency and power per liter of the gasoline engine.

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