US 12,215,658 B2
Fuel injector with radially orientable nozzle holes using splines
Jordan P. Steele, Franklin, IN (US); Michael A. Lucas, Columbus, IN (US); and Derek G. Weiler, North Vernon, IN (US)
Assigned to Cummins Inc., Columbus, IN (US)
Appl. No. 17/602,363
Filed by Cummins Inc., Columbus, IN (US)
PCT Filed Apr. 15, 2019, PCT No. PCT/US2019/027445
§ 371(c)(1), (2) Date Oct. 8, 2021,
PCT Pub. No. WO2020/214140, PCT Pub. Date Oct. 22, 2020.
Prior Publication US 2022/0178335 A1, Jun. 9, 2022
Int. Cl. F02M 61/18 (2006.01); F02M 61/16 (2006.01)
CPC F02M 61/18 (2013.01) [F02M 61/168 (2013.01); F02M 2200/8015 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fuel injector, comprising:
a body including a plurality of body alignment features;
a nozzle including a plurality of nozzle alignment features and a plurality of nozzle holes for injecting fuel; and
a clocking ring having an inner surface with a plurality of alignment guides configured to mate with the plurality of body alignment features and the plurality of nozzle alignment features to align the nozzle with the body such that the plurality of nozzle holes is in a desired orientation relative to the body, wherein each of the plurality of alignment guides is spaced apart by an angle of 180 degrees from another of the plurality of alignment guides to ensure the clocking ring can be mated with the plurality of body alignment features and the plurality of nozzle alignment features in at least two ways to provide at least two different orientations of the plurality of nozzle holes of the nozzle relative to the body;
wherein the clocking ring includes a side wall, an upper edge, a lower edge, and a circumferential chamfer formed along the side wall adjacent at least one of the upper edge and the lower edge.