Exhaust gas purification system for two-stroke engine comprises two separate catalytic purifiers in series in exhaust pipe and device for injecting air between the purifiers

摘要

The engine (1) is connected to an exhaust pipe (2) in which at least two distinct and separate catalytic purifiers (3, 4) are placed in series. A device (10) injects air between the two purifiers. The device for injecting air comprises a device forming a compressor with the outlet connected to the exhaust pipe to inject air under pressure between the two purifiers. The compressor is driven by the engine.