| 摘要 |
PURPOSE:To obtain a sequential supercharger of a diesel engine which carries out the smooth selection from a small turbo to a large turbo and prevents the generation of smoke in the selection. CONSTITUTION:A sequential supercharger is constituted so that a small turbo 2 and a large turbo 3 are arranged in parallel in the exhaust pipe 4 of a diesel engine 1, and the small turbo 2 is used when the exhaust gas quantity is small, and the switching to the large turbo 3 is performed as the exhaust gas quantity increases, anf an auxiliary turning pipe 28 for introducing a portion of exhaust to the turbine 3t of the large turbo 3 is installed in the turbine inflow pipe 5 of the small turbo 2, and an auxiliary turning valve 29 which is opened in precedence to the switching from the small turbo 2 to the large turbo 3 is installed in the auxiliary turning pipe 28. |
