US 12,385,428 B2
Thrust control method for an airbreathing jet engine
Marcus S Horobin, Bristol (GB)
Assigned to ROLLS-ROYCE plc, London (GB)
Filed by ROLLS-ROYCE plc, London (GB)
Filed on Jan. 25, 2024, as Appl. No. 18/422,935.
Claims priority of application No. 2302422 (GB), filed on Feb. 21, 2023.
Prior Publication US 2024/0280046 A1, Aug. 22, 2024
Int. Cl. F02B 3/06 (2006.01); F02B 23/06 (2006.01)
CPC F02B 3/06 (2013.01) [F02B 23/0645 (2013.01); F02B 2275/14 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of thrust control for an airbreathing jet engine that has a combustion chamber, the method comprising:
obtaining a demanded thrust setting;
obtaining a value of static pressure at a first axial location of the combustion chamber of the airbreathing jet engine;
obtaining a value of static pressure at a second axial location of the combustion chamber of the airbreathing jet engine, wherein the second axial location is downstream of the first axial location;
obtaining a ratio of the value of static pressure at the first axial location of the combustion chamber to the value of static pressure at the second axial location of the combustion chamber; and
controlling a fuel flow rate of the airbreathing engine based at least in part on the demanded thrust setting and the ratio of the value of the static pressure at the first axial location to the value of the static pressure at the second axial location.