US 12,228,077 B2
Fuel system including driving turbine
Jonathan E. Holt, Derby (GB); and Richard Sharpe, Leek (GB)
Assigned to Rolls-Royce plc, London (GB)
Filed by ROLLS-ROYCE plc, London (GB)
Filed on Mar. 15, 2023, as Appl. No. 18/183,989.
Claims priority of application No. 2204073 (GB), filed on Mar. 23, 2022.
Prior Publication US 2023/0304440 A1, Sep. 28, 2023
Int. Cl. F02C 7/224 (2006.01); B64D 13/02 (2006.01); B64D 37/30 (2006.01); F02C 7/32 (2006.01)
CPC F02C 7/224 (2013.01) [B64D 13/02 (2013.01); B64D 37/30 (2013.01); F02C 7/32 (2013.01); F05D 2220/323 (2013.01); F05D 2240/36 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A gas turbine engine comprising a fuel system, the gas turbine comprising a core compressor configured to provide core air flow to a combustor and a core turbine; the fuel system comprising:
a fuel pump for fluid communication with a fuel reservoir;
a driving turbine for driving the fuel pump; and
a source of compressed air flow to drive the driving turbine, the source of compressed air flow comprising a cabin blower bleed line from a cabin blower compressor of a cabin blower system.