Microwave ignition is a promising method

but the microwave ignition methods mostly use quarter wave coaxial cavity resonator as igniter with poor effect at present. Consequently

we researched cylindrical microwave resonant cavity

and introduced a method utilizing cylinder microwave resonator to realize microwave ignition. The main resonant modes in cylinder resonator are ordinarily TE

111

and TM

010

therefore

by theoretical analysis and simulation

the apparatuses based on these two modes were designed. The results show that the TE

111

apparatus can realize microwave ignition

but it can only work at a low pressure of 0.012 MPa. The TM

010

apparatus can work stably at the pressure of 1 MPa; moreover

this method can improve the stability

of ignition and lean-burn limit. Furthermore

a few metal tips were planted in the TM

010

resonant cavity to realize multi-point microwave ignition. Compared to the spark ignition system

this method can accelerate the combustion speed

reduce the heat loss

and improve the energy efficiency.