Integrated power and cooling environmental control system

Details Integrated power and cooling environmental control system Integrated power and cooling environmental control system

B - Operations, Transporting

64

D

B64D 41/00 (2006.01) B64D 13/02 (2006.01) B64D 13/06 (2006.01) F02C 6/08 (2006.01)

Patent

CA 2185924

An environmental control system has an air cycle machine that includes a compressor (38), a cooling turbine (34), a motor/generator (36), and a power turbine (40) all mounted on a single shaft (32). The power turbine receives bleed air from the aircraft's engine (12) and has a variable geometry inlet nozzle (42) that adjusts the air flow rate therethrough without significant throttling. Downstream of the nozzle the power turbine extracts the expansion energy from the bleed air while cooling it. This is used to drive the other components of the air cycle machine, and in particular the motor/generator which generates electricity.

Un système de climatisation possède une machine de conditionnement d'air comprenant un compresseur (38), une turbine de refroidissement (34), un moteur/générateur (36) et une turbine de travail (40), tous montés sur un seul arbre (32). La turbine de travail reçoit l'air d'appoint provenant du moteur (12) de l'avion et possède un ajutage d'admission (42) à géométrie variable qui régule le débit d'air sans étranglement notable. A l'aval de l'ajutage, la turbine de travail extrait une énergie de détente de l'air d'appoint tout en le refroidissant. Celui-ci est utilisé pour entraîner les autres composants de la machine de conditionnement d'air et notamment du moteur/générateur qui génère de l'électricité.

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