US 12,460,821 B2
Fuel injector panels having micromixers
Christian Di Norscia, Santee, CA (US); Rajeshriben Patel, San Diego, CA (US); German Verduzco, Chula Vista, CA (US); Robert Fanella, San Diego, CA (US); Peter Sykes, San Marcos, CA (US); and Hanjie Lee, San Diego, CA (US)
Assigned to Solar Turbines Incorporated, San Diego, CA (US)
Filed by Solar Turbines Incorporated, San Diego, CA (US)
Filed on Feb. 15, 2023, as Appl. No. 18/110,100.
Prior Publication US 2024/0271793 A1, Aug. 15, 2024
Int. Cl. F23R 3/28 (2006.01); F02C 3/22 (2006.01); F02C 9/40 (2006.01); F23R 3/34 (2006.01); F23R 3/36 (2006.01)
CPC F23R 3/286 (2013.01) [F02C 3/22 (2013.01); F02C 9/40 (2013.01); F23R 3/36 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A fuel injection system comprising:
an annular frame having a plurality of windows circumferentially arranged around a longitudinal axis of the annular frame, wherein the annular frame comprises an outer ring and an inner ring; and
at least one micromixer panel, wherein each of the at least one micromixer panel is mounted within a respective window of the plurality of windows, and wherein each of the at least one micromixer panel comprises:
a plurality of channels from an upstream side to a downstream side, the downstream side opposite the upstream side, wherein each of the plurality of channels starts at a respective inlet of a plurality of inlets on the upstream side and terminates at a respective outlet of a plurality of outlets on the downstream side, and wherein each of the plurality of channels provides fluid communication from the respective inlet to the respective outlet;
a plurality of fuel jets, wherein each of the plurality of fuel jets is positioned within the respective outlet of the plurality of outlets, and wherein each of the plurality of fuel jets is configured to inject only fuel into the respective outlet;
at least one radial inlet through a surface of the micromixer panel, wherein the surface is a radially outward facing surface of the micromixer panel;
at least one internal fuel feed that provides fluid communication between the at least one radial inlet and at least one subset of fuel jets of the plurality of fuel jets, the at least one subset of fuel jets including more than one fuel jet of the plurality of fuel jets; and
an aperture through a central portion of the micromixer panel, wherein the aperture is configured to fit a pilot body and is not in fluid communication with the at least one internal fuel feed.