| 摘要 |
The invention concerns a supercharging device for an internal combustion engine using the exhaust gas heat energy. The supercharging device comprises a compressor (7) mechanically linked to an exhaust gas turbine (5) for compressing the combustion air, and at least one additional compressor (18) placed in series after the compressor (7) in the direction of flow and mechanically linked to an additional turbine (13). The compressed combustion air outlet (7b) from the compressor (7) is connected to the inlet (18a) of the additional compressor (18) and to the inlet (14) of the additional turbine (13) to enable heat exchange to take place between the exhaust gases expanded in the exhaust gas turbine (5) and the compressed air. The heat exchanger (12) can be of the regenerative or recuperative type, and the connecting duct (11a) taking compressed air to the heat exchanger (12) can include a control valve (23). A combustion chamber (21) with an independent supply (22) of gaseous or liquid fuel can be included between the regenerative heat exchanger (12) and the inlet (14) to the aadditional turbine. |
