| 摘要 |
A turbocharger device 20 comprising a first compressor 22 and a first turbine 28 and a second compressor 24 and a second turbine 30, which are all arranged on the same shaft 26. The shaft 26 can also be driven by an electric motor 32, and each one of the compressors 22, 24 and the turbines 28, 30 are preferably connected to the shaft 26 by means of a clutch so that both or either of the compressors can be in operation with both or either of the turbines at any point of operation. The turbocharger device 20 may also have a controller 34 and a number of valves 36, 38, 40, 42 to control flow to the compressors and turbines. Such a turbocharger device allows for operation over a wide range of mass flow rates. The invention further relates to a fuel cell system 10 with such a turbocharger device 20. |
