| 摘要 |
A method of manufacturing a multistage exhaust turbocharger having a high-pressure stage turbocharger and a low-pressure stage turbocharger reduced in pipe connection between the turbochargers thereby reducing the bulk of the multistage exhaust turbocharger, the number of parts for the connection, and assembling man-hours, and facilitating the mounting of an engine equipped with the multistage exhaust turbocharger in a narrow engine room of a vehicle. A high-pressure turbine housing is formed integral with an exhaust manifold of the engine, constituent parts of the high-pressure stage turbocharger is assembled to the high-pressure turbine housing formed integral with the manifold, the low-pressure stage turbocharger is connected to the high-pressure stage turbocharger by attaching a low-pressure turbine housing of the low-pressure stage turbocharger to a low-pressure turbine housing connection flange provided at an exhaust gas outlet side of the high-pressure stage turbocharger.
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