1998-02-23

Modeling the Radio Frequency Coaxial Cavity Plasma Ignitor as an Internal Combustion Engine Ignition System 980168

A quarter-wave radio frequency coaxial cavity plasma ignitor can be used to generate a combustion-initiating energy source in an internal combustion engine. This paper outlines research results on the development of such an ignitor. The system, which operates in the 820 - 900 MHz frequency range, uses a high Q quarter-wave cavity that generates plasma when resonating. Pressure testing has shown that the device can generate plasmas at spark ignition compression pressures. A resonator operating at these frequencies has been attached to a static combustion chamber and modeled numerically in order to determine the operational characteristics of the device in a combustion chamber.

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