Exhaust gas flow system for an internal combustion

专利名称：Exhaust gas flow system for an internal

combustion engine fitted with a

supercharger, and method used for such asystem

发明人：Eric Olofsson申请号：US08/232277申请日：19940506公开号：US05417068A公开日：19950523

摘要：Exhaust flow system for a split exhaust flow in a multi- cylinder internalcombustion engine (3) fitted with an exhaust-driven supercharger (2) of the

turbocompressor type, whose exhaust system incorporates a catalytic exhaust cleaner(58; 58'), where each cylinder of the engine has both a first exhaust valve (51), from whichreleased exhaust gas is fed to a first exhaust collector (53) common to the cylinders,which collector is connected directly to the exhaust turbine inlet by a first exhaust branchpipe (54), and a second exhaust valve (52) , from which released exhaust gas is fed to anexhaust pipe (56), which incorporates a silencer (61). At least one valve (50) adjustableaccording to the operating conditions of the engine (3), is arranged downstream from thesecond exhaust valves (52) of the cylinders, in their connection (59, 55, 57) to the exhaustpipe (56) between the exhaust turbine outlet (20) and the silencer (61).

申请人：SAAB AUTOMOBILE AKTIEBOLAG

代理机构：Ostrolenk, Faber, Gerb & Soffen

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