Water jacket type precombustion ignition system

Abstract

The invention provides a water jacket type precombustion ignition system which is characterized in that the water jacket type precombustion ignition system comprises an internal combustion engine circulation line, a circulating water pump and a water jacket type precombustion device, wherein the water jacket type precombustion device comprises a precombustion chamber component and a precombustion chamber water jacket; the precombustion chamber component comprises a precombustion chamber housing vertically embedded into an inner cavity, and a spark plug arranged in the precombustion chamber housing; a through hole is formed between the external wall of the precombustion chamber water jacket and the internal wall of an air cylinder cover, and acts as a water inlet channel; an annular gap is formed between the precombustion chamber housing and the internal wall of the precombustion chamber water jacket, and acts as a first cooling water channel to communicate with the water inlet channel; and cooling water is introduced into the water inlet channel via the water outlet end of the internal combustion engine circulation line, and then enters the first cooling water channel, and the cooling water surrounds the precombustion chamber housing to flow and undergoes heat exchange, and then flows out. The water jacket type precombustion ignition system allows the cooling water to flow in from the bottom and then directly flows out of the top, so that a flow dead angle is avoided, cooling and heat dissipation can be carried out on the precombustion chamber housing effectively, the heat dissipation efficiency is high, and the service life is long.

Description

technical field [0001] The invention relates to an internal combustion engine, in particular to a pre-ignition ignition system of the internal combustion engine. Background technique [0002] Large-displacement gas-fired internal combustion engines generally adopt pre-chamber ignition technology. After a small amount of fuel gas is delivered to the pre-chamber, the spark plug in the pre-chamber housing generates electric sparks to ignite the mixture of fuel gas and air to generate flames and spray them out through the nozzle. The ejected flame ignites a large amount of fuel gas mixture in the combustion chamber, and then burns to do work. [0003] In the prior art, the cylinder head of the internal combustion engine is closely attached to the pre-chamber housing to form a structure with a large overall thickness. After hours of work, the temperature of the pre-chamber casing reaches several hundred degrees. [0004] The high temperature of the pre-chamber housing can cause...

AI Technical Summary

Problems solved by technology

[0004] The high temperature of the pre-chamber housing can cause many problems. On the one hand, too high a temperature may reach the ignition point of the fuel gas mixture, which will cause the fuel gas mixture to burn immediately when it comes into contact with the housing, without being ignited by the spark plug That is to say, the high-temperature pre-combustion chamber shell will keep burning inside the gas internal combustion engine, and it cannot be normally controlled by spark plug ignition and burns to do work, that is, it cannot work normally.

On the other hand, if the temperature is too high, the nozzle of the pre-combustion chamber will be melted and damaged due to overheating, or the direction of the injection hole will be shifted, which will cause the internal combustion engine to fail to work normally; and the service life of the spark plug will be greatly shortened.

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