| 摘要 |
A multi-stage supercharging device configured in such a manner that the sealing properties of the portion at which a high-pressure stage turbocharger and a low-pressure stage turbocharger are connected is improved. A multi-stage supercharging device (1) has a first supercharger (20) and a second supercharger (30). The first supercharger (20) is provided with a first turbine housing section (25b), a first exhaust gas inlet section (25a), and a first exhaust gas outlet section (25c) which is extended in the direction of the axis of the first turbine (21) from the first turbine housing section (25b) and is bent upward. The second supercharger (30) is provided with a second turbine (31), a second turbine housing section (35b), and a second exhaust gas inlet section (35a) which is directly connected to the first exhaust gas outlet section (25c) and which connects the first exhaust gas outlet section (25c) and the second turbine housing section (35b). The opening of the second exhaust gas inlet section (35a) is mounted on the opening of the first exhaust gas outlet section (25c) to cause the second supercharger (30) to be supported by the first supercharger (20). |
