Cylinder exterior cold water and cylinder interior hot water mixing double spraying gasoline engine structure

Abstract

The invention relates to a cylinder exterior cold water and cylinder interior hot water mixing double spraying gasoline engine structure. The cylinder exterior cold water and cylinder interior hot water mixing double spraying gasoline engine structure comprises a gasoline engine body, an inlet manifold, an exhaust manifold, a gasoline injector, a sparking plug, a cylinder interior water spraying device, a high-pressure water pump unit, a cylinder exterior water spraying device, a low-pressure water pump unit, a heat exchanger and an electronic controller, wherein the cylinder interior water spraying device is arranged in the gasoline engine body; the high-pressure water pump unit is connected to the cylinder interior water spraying device; the cylinder exterior water spraying device is arranged in the inlet manifold; the low-pressure water pump unit is connected to the cylinder exterior water spraying device; and the electronic controller is electrically connected to the gasoline injector, the sparking plug, the cylinder interior water spraying device, the high-pressure water pump unit, the cylinder exterior water spraying device and the low-pressure water pump unit. Compared withthe prior art, the cylinder exterior cold water and cylinder interior hot water mixing double spraying gasoline engine structure has the beneficial effects that heat is absorbed by utilizing the rapidvaporization of hot water sprayed into a cylinder; the temperature of the cylinder interior nearby a burning top dead center is reduced; the generation of knockings and super knockings during low speed and heavy duty operations is inhibited; meanwhile, the heat for heating water comes from the energy of tail gases recycled by the heat exchanger; the improvement of working mediums for applying work in a burning process is realized; the loss of heat is reduced; and the heat efficiency of the gasoline engine 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 cold water outside the cylinder and hot water in the cylinder mixed with double injection. 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. Energy saving and emission reduction has 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 ...

AI Technical Summary

Problems solved by technology

However, the exhaust gas discharged from the cylinder takes away about one-third of the heat in the cylinder. At present, injecting cold water into the cylinder can reduce the end-of-compression temperature in the cylinder and avoid knocking and early ignition, but it still does not solve the large loss of heat in the exhaust gas in the cylinder. The problem is that the exhaust gas from the cylinder wastes a lot of energy consumption, which limits the further improvement of the thermal efficiency of the gasoline engine

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