| 摘要 |
An aircraft air provision system (102) includes a power turbine (132) that receives bleed air at a first pressure and provides rotational energy to a shaft (134) and outputs output air at an intermediate pressure. The system also includes a compressor (135) coupled to the shaft (134) that receives input air at a second pressure that is lower than the first pressure and outputs compressed air having a pressure equal to the intermediate pressure and a mix chamber (142) coupled to outputs of both the power turbine (132) and the compressor (135) where the output air and the compressed air are mixed. The system also includes a cooling turbine (136) coupled to the shaft (134) and that is in fluid communication with an output of the mix chamber (142). |
