US 12,435,876 B2
Combustion chamber assembly for an engine with at least one heat exchanger channel for fuel to be injected
Carsten Clemen, Mittenwalde (DE)
Assigned to ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, Blankenfelde-Mahlow (DE)
Filed by Rolls-Royce Deutschland Ltd & Co KG, Blankenfelde-Mahlow (DE)
Filed on Apr. 25, 2022, as Appl. No. 17/728,371.
Claims priority of application No. 10 2021 110 614 (DE), filed on Apr. 26, 2021.
Prior Publication US 2025/0146666 A1, May 8, 2025
Int. Cl. F23R 3/00 (2006.01); F23R 3/28 (2006.01)
CPC F23R 3/005 (2013.01) [F23R 3/002 (2013.01); F23R 3/283 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A combustion chamber assembly for an engine, comprising
a combustion chamber that defines a combustion space delineated by a combustion chamber wall and extending in a main flow direction from a combustion chamber head to a combustion chamber outlet, and
a fuel injection system which is joined to the combustion chamber wall at the combustion chamber head and includes at least one fuel feed for fuel and a nozzle head for the injection of the fuel into the combustion space,
wherein the combustion chamber wall includes at least one integrated heat exchanger duct via which the fuel is routed within a first duct section of the heat exchanger duct which is connected to the at least one fuel feed from the combustion chamber head in a direction of the combustion chamber outlet and, after flowing through a deflection region, in a second duct section of the heat exchanger duct, back in a direction of the combustion chamber head and of the nozzle head;
wherein the deflection region is provided for cooling of at least one component of a turbine downstream of the combustion chamber.