US 12,253,259 B2
Combustion systems including heat modules, and associated devices and methods
Daniel Kraemer, Mukilteo, WA (US); Yan Chen, Woodinville, WA (US); Patrick D. Noble, Seattle, WA (US); and Vikas Patnaik, Mukilteo, WA (US)
Assigned to Modern Hydrogen, Inc., Bothell, WA (US)
Filed by Modern Electron, Inc., Bothell, WA (US)
Filed on Jul. 21, 2022, as Appl. No. 17/870,656.
Claims priority of provisional application 63/224,060, filed on Jul. 21, 2021.
Prior Publication US 2023/0025491 A1, Jan. 26, 2023
Int. Cl. F23C 7/06 (2006.01); F23C 6/04 (2006.01); F23N 1/00 (2006.01)
CPC F23C 7/06 (2013.01) [F23C 6/047 (2013.01); F23N 1/002 (2013.01); F23N 2900/05001 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A combustion system, comprising:
a first combustion zone configured to (i) combust preheated air and a first fuel received via a first fuel input and (ii) generate a first exhaust gas, wherein the first exhaust gas comprises a first excess air, and wherein the preheated air has a temperature above an auto-ignition temperature when mixed with the fuel;
a second combustion zone downstream of the first combustion zone, wherein the second combustion zone is configured to (i) combust the first exhaust gas and a second fuel received via a second fuel input and (ii) generate a second exhaust gas having a second excess air less than the first excess air; and
a heat module thermally coupled to the first combustion zone and/or the second combustion zone such that at least a portion of heat from the first combustion zone and/or second combustion zone is absorbed via the heat module.