Dual supercharger for two-stroke engine, has low pressure pipe for removing waste gases while high pressure pipe supercharging engine, and independent circuits provided with air inlet valves that are electronically controlled

摘要

The supercharger has an electronically controlling flap (10) for varying output of exhaust gases of an engine in two independent circuits (11, 12). The flap is arranged at a joining location of exhaust ports (7, 8) of an engine. The circuits drive turbocompressors (13, 14) for compressing intake air in high pressure and low pressure pipes (15, 16), respectively. The low pressure pipe removes waste gases while the high pressure pipe supercharges the engine. The circuits are provided with cooling systems (17, 18) and air inlet valves (5, 6) that are electronically controlled.