Application of Charge Stratification, Lean Burn Combustion Systems and Anti-Knock Control Devices in Small Two-Stroke Cycle Gasoline Engines

For essentially reducing the specific fuel consumption in two-stroke cycle engines and the concentration of hydrocarbons (HC) in the exhaust gas, the normal engine was equipped with a new rain tuned fuel injection system. By the application of charge stratification, lean burn combustion, different ignition systems and a special anti-knock device, considerable fuel consumption and HC emission reductions were obtained.