09-04-2020 дата публикации
Номер: US20200108937A1
A thermal management system for an aircraft engine. The thermal management system extracts interstage engine bleed air from the engine's compressor and performs three stage cooling of the interstage engine bleed air using two heat exchangers and a vapor cycle system evaporator. The cooled air is then further cooled by expansion through a set of turbines and subsequently used as a heat sink for heat loads on the aircraft. 1102. A thermal management system (TMS) () , comprising:{'b': 108', '122', '122', '112', '106', '122', '122', '110', '106, 'i': a', 'b, 'a fan () drawing a first portion () of ram air () into an engine compressor () in an aircraft engine core () and a second portion () of the ram air () into an engine duct () bypassing the aircraft engine core ();'}{'b': 112', '122', '122', '126', '112', '106', '106', '106', '106', '106', '106', '126', '106', '106', '126, 'i': a', 'a', 'b', 'c', 'a', 'b', 'c', 'c', 'a', 'a, 'the engine compressor () compressing the first portion () of the ram air () so as to form compressed air (), the engine compressor () including a first compressor stage (), a final compressor stage (), and one or more intermediate compressor stages () between the first compressor stage () and the final compressor stage (), each of the intermediate compressor stages () compressing the compressed air () outputted from a previous intermediate compressor stage () or first compressor stage () so as to form interstage compressed air ();'}{'b': 156', '126', '128', '112, 'i': 'a', 'a duct system () transporting a portion of the interstage compressed air () (engine bleed air ) from the engine compressor ();'}{'b': 134', '156', '110', '134', '1', '128', '156', '122', '122', '110', '128', '138', '156, 'i': b', 'a, 'a first heat exchanger () connected to the duct system () and the engine duct (), the first heat exchanger () transferring first heat (H) from the engine bleed air () in the duct system () to the second portion () of the ram air () in the engine ...
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