公开(公告)号：US20180194480A1

公开(公告)日：2018-07-12

申请号：US15322844

申请日：2015-06-30

Applicant: General Electric Company

Inventor： Kevin Richard LEAMY ,  Benajamin Paul BREIG ,  Michael Jay EPSTEIN ,  Javier Armando PARRILLA ,  Matthew John Hurt ,  Thomas Edward BRINSON ,  Andrew James FLEMING ,  George Eugene WILMOT

IPC: B64D13/08 ,  B64D13/00 ,  F02C6/08 ,  F01D17/14

Abstract: Methods and devices for cooling systems (100, 700) are provided that are in fluid communication with bleed air from a jet engine compressor. The cooling systems include: a first precooler (210) receiving bleed air from the jet engine compressor; a heat exchanger (730) downstream from the first precooler (210); a cooling system compressor (220) downstream from the first precooler (210), wherein the heat exchanger (730) and the cooling system compressor (220) are in separate flow paths from the first precooler (210); a cooling system precooler (230) downstream from the cooling system compressor (220); a cooling system turbine (240) with variable guide vanes—VGT—and downstream from the cooling system precooler (230); and a discharge conduit (245) downstream from the cooling system turbine (240) and the heat exchanger (730). A bypass line (290) can also be included that bypasses the cooling system turbine (240).