Ignition device, combustion system and combustion method for internal combustion engine

Abstract

The invention relates to the field of internal combustion engines, and discloses an internal combustion engine ignition device, a combustion system and a combustion method. The ignition device comprises a jet flow chamber and an ignition mechanism arranged in the jet flow chamber. One end of the jet flow chamber is inserted in a main combustion chamber and communicates with the main combustion chamber through a jet flow spraying hole. The jet flow spraying hole comprises a first spraying hole body and a second spraying hole body, wherein the hole diameter of the first spraying hole body is larger than that of the second spraying hole body, the first spraying hole body is used for spraying flame jet flow to the main combustion chamber after ignition, and the second spraying hole body is used for spraying free base jet flow to the main combustion chamber after ignition. According to the internal combustion engine ignition device, the combustion system and the combustion method provided in the embodiment, weak mixed gas in the main combustion chamber is rapidly and stably ignited through the jet flow flames and the activity free base; and the combustion temperature in the main combustion chamber can be better controlled, near-zero emission of nitric oxide is better achieved, and the heat efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of internal combustion engines, in particular to an ignition device, a combustion system and a combustion method for an internal combustion engine. Background technique [0002] As the most important power source in the field of transportation, the internal combustion engine plays a very important role in the process of economic development and social progress. However, in recent years, with the continuous growth of the number of internal combustion engines, the consumption of fossil energy has risen sharply, and environmental problems such as air pollution and greenhouse effect have become increasingly serious. Therefore, energy and environmental issues make the transformation and upgrading of internal combustion engine energy saving and emission reduction technology more and more urgent. For internal combustion engines, a lean burn strategy with a high excess air ratio is an effective way to improve therm...

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Problems solved by technology

[0004] Embodiments of the present invention provide an ignition device, a combustion system and a combustion method for an internal combustion engine, which are used to solve or partially solve the problem of existing lean combustion conditions with high excess air coefficients. It is difficult for traditional spark plugs to establish a tiny fire core close to the thickness of the flame, which may easily lead to misfires. The problem

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