G0700705 A Study of Super Lean-burn Induced by a Streamer-discharge using an Optically Accessible Engine

Abstract

This study investigated the effect of streamer discharge on lean-combustion in an internal combustion engine. A continuous streamer discharge was generated in the wall-side of the combustion chamber of a 2-stroke optically accessible engine that allowed visualization of the entire bore area. The experimental results showed that the weak flame was initiated and grew from the circumference of the electrode under the application of a streamer discharge. As a result, lean-combustion can be made exceed lean-limit of a conventional spark-ignition engine.