An air cycle machine (400) comprises rotating components that include a fan, a compressor, and a first turbine. The air cycle machine (400) also includes a cooling airflow path (406) that receives cooling air from a cooling air source, directs the cooling air to an air-cooled bearing (406,408,412,414) for at least one of the rotating components, and discharges the cooling air. The airflow path (406) is isolated from an inlet (422) of the compressor by a seal member (260), and the airflow path (406) is configured to maintain pressure at the seal member (420) above a pressure at the compressor inlet (422).
AIR CYCLE MACHINE WITH COOLING AIR FLOW PATH
LUFTKREISLAUFMASCHINE MIT KÜHLLUFTSTROMKANAL
MACHINE À CYCLE D'AIR AVEC UN TRAJET D'ÉCOULEMENT D'AIR DE REFROIDISSEMENT
2019-05-01
Patent
Elektronische Ressource
Englisch
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F01D Strömungsmaschinen [Kraft- und Arbeitsmaschinen oder Kraftmaschinen], z.B. Dampfturbinen , NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES / F02C Gasturbinenanlagen , GAS-TURBINE PLANTS / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS |