US 12,270,344 B2
Controllable fuel nozzle valves with redundancy
Gary McBrien, S. Glastonbury, CT (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Aug. 28, 2023, as Appl. No. 18/238,792.
Prior Publication US 2025/0075661 A1, Mar. 6, 2025
Int. Cl. F02C 7/232 (2006.01); F02C 7/22 (2006.01); F02C 9/26 (2006.01); F23R 3/34 (2006.01)
CPC F02C 7/232 (2013.01) [F02C 7/222 (2013.01); F02C 9/263 (2013.01); F23R 3/346 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fuel system comprising:
a main manifold including an inlet configured to receive fuel from a fuel source, and a plurality of main manifold branches each in fluid communication to receive flow from the inlet;
a plurality of valves, wherein each valve in the plurality of valves is connected in fluid communication with a respective one of the main manifold branches in the plurality of main manifold branches to receive flow from the main manifold;
a plurality of secondary manifolds, wherein each secondary manifold in the plurality of secondary manifolds connects a single one of the valves in the plurality of valves to a pair of secondary manifold branches; and
a plurality of fuel nozzles, wherein each nozzle in the plurality of fuel nozzles includes a first inlet connected in fluid communication to one of the valves through one of the secondary manifold branches, and a second inlet connected in fluid communication to a different one of the valves through a different one of the secondary manifold branches so each of the fuel nozzles has a redundant connection to the main manifold through two of the valves.