Equipment for supercharged engine facilitating treatment of exhaust gas comprises diversion pipe with valve connected to air admission pipe between compressor and engine and to exhaust pipe between engine and gas treatment equipment

摘要

The supercharged engine (1) comprises an air admission pipe (2), an exhaust gas pipe (7), exhaust gas treatment equipment (8,9) located in the exhaust pipe and a supercharging system comprising a compressor (5) in the admission pipe. A diversion pipe (12) is connected to the admission pipe between the compressor and the engine and to the exhaust pipe between the engine and the treatment equipment. A valve (13) with adjustable opening is placed in the diversion pipe.