| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multi-turbo system that does not cause any trouble in regeneration of a particulate filter. <P>SOLUTION: The multi-turbo system mounting thereon a small-sized turbocharger 1 and a large-sized turbocharger 2 selects the optimum one or both of the two turbochargers for supercharging. A first outlet 20 and a second outlet 21 are formed in an exhaust manifold 4. An inlet of a turbine 1a of the small-sized turbocharger 1 is connected to the first outlet 20. An exhaust switching chamber 22 is connected to the second outlet 21 and the exhaust switching chamber 22 is also connected to an outlet of the turbine 1a. An inlet of a turbine 2a of the large-sized turbocharger 2 and an exhaust pipe 5 are individually connected to the exhaust switching chamber 22 and the exhaust pipe 5 is also connected to an outlet of the turbine 2a. In the exhaust switching chamber 22, there is provided an exhaust switching valve 23 for selectively introducing exhaust gas 6 from either of the first outlet 20 and the second outlet 21 so as to selectively distribute the exhaust gas to the inlet of the turbine 2a and the exhaust pipe 5. <P>COPYRIGHT: (C)2009,JPO&INPIT |
