| 摘要 |
The present invention relates to a multi-stage supercharging apparatus capable of improving the seal property in a connection portion of a high-pressure stage turbocharger and a low-pressure stage turbocharger. In a multi-stage supercharging apparatus 1 including a first supercharger 20 and a second supercharger 30, the first supercharger 20 is provided with a first turbine accommodating section 25b, a first exhaust inlet 25a, and a first exhaust outlet 25c which extends in an axial direction of the first turbine 21 from the first turbine accommodating section 25b and is bent upward, the second supercharger 30 is provided with a second turbine 31, a second turbine accommodating section 35b, and a second exhaust inlet 35a which is directly connected to the first exhaust outlet 25c to allow the first exhaust outlet 25c to be communicated with the second turbine accommodating section 35b, and the second supercharger 30 is supported by the first supercharger 20 by placing an opening of the second exhaust inlet 35a on an opening of the first exhaust outlet 25c. |
