US 12,276,225 B2
Gas turbine engine
Christopher A. Murray, Nottingham (GB); Nicholas Howarth, Derby (GB); and Richard G. Stretton, Ashby-de-la-Zouch (GB)
Assigned to ROLLS-ROYCE plc, London (GB)
Filed by ROLLS-ROYCE plc, London (GB)
Filed on Mar. 15, 2023, as Appl. No. 18/184,008.
Claims priority of application No. 2205076 (GB), filed on Apr. 7, 2022.
Prior Publication US 2023/0323810 A1, Oct. 12, 2023
Int. Cl. F02C 6/08 (2006.01); B64D 13/00 (2006.01); B64D 13/02 (2006.01); B64D 13/08 (2006.01); B64D 33/08 (2006.01); F02C 7/12 (2006.01); F02C 7/18 (2006.01); F02C 9/16 (2006.01); F02C 9/20 (2006.01); F02C 9/54 (2006.01)
CPC F02C 6/08 (2013.01) [F02C 7/185 (2013.01); B64D 13/006 (2013.01); B64D 13/02 (2013.01); B64D 13/08 (2013.01); B64D 33/08 (2013.01); F02C 7/12 (2013.01); F02C 7/18 (2013.01); F02C 9/16 (2013.01); F02C 9/20 (2013.01); F02C 9/54 (2013.01); F05D 2260/205 (2013.01); F05D 2260/232 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gas turbine engine comprising a blower system for supplying pressurised air to an airframe via an airframe port, the blower system comprising:
a compressor configured to receive air from a bypass duct or a core of the gas turbine engine and discharge compressed air into a delivery line extending from the compressor to the airframe port;
a heat exchanger configured to transfer heat from the compressed air to a coolant;
a valve arrangement configured to switch between operation of the blower system in a baseline mode and a cooling mode, the valve arrangement being configured to selectively divert the compressed air within the delivery line to the heat exchanger for operation in the cooling mode.