Microwave-assisted spark plug ignition method and microwave-assisted spark plug ignition integrated set

Abstract

The invention discloses a microwave-assisted spark plug ignition method, comprising the steps of issuing a pulse signal to a spark plug system to trigger the same to generate a pulse high voltage; issuing a pulse signal to a microwave system to trigger the same to generate a microwave pulse of specific frequency and power; loading the pulse high voltage to a spark plug, breaking down thin gas via arc discharging to generate a plasma cluster; the plasma cluster can be expanded via microwave pulse irradiation to achieve ignition via thin combustion in an internal combustion engine. The invention also discloses a microwave-assisted spark plug ignition integrated set. The method of the invention combines the advantages of spark plug high-voltage discharge breakdown and those of microwave-to-plasma-cluster coupling energy; the integrated set of the invention includes a spark plug system and a microwave system, and achieves stable ignition via thin combustion in high-pressure environment of a combustor of the internal combustion engine.

Description

technical field [0001] The invention relates to the field of internal combustion engines, more specifically, to a microwave-assisted spark plug ignition method and an integrated device thereof. Background technique [0002] In response to increasingly stringent environmental regulations and the severe consumption of petroleum resources, internal combustion engine engineers need to continue to work on the development of efficient and clean internal combustion engine technology. Lean combustion technology uses high air-fuel ratio and high compression ratio to improve fuel economy and exhaust emission level. It is one of the most potential combustion methods to improve the thermal efficiency of internal combustion engines. However, when the internal combustion engine achieves lean combustion or even ultra-lean combustion, there are problems such as difficulty in ignition and unstable flame propagation. Through the traditional method of increasing ignition energy, the effect is...

AI Technical Summary

Problems solved by technology

[0007] (1) To make the microwave resonate in the combustion chamber of the internal combustion engine, it is necessary to modify the configuration of the traditional classic internal combustion engine combustion chamber to achieve the appropriate size, which not only costs a lot of modification, but also affects the spray and combustion of the internal combustion engine;

[0008] (2) Under the high-pressure environment of the combustion chamber of the internal combustion engine, it is still difficult to stably penetrate the thin gas by relying only on microwave resonance, making the ignition unstable

Images