US 11,686,475 B2
Fuel injectors and methods of making fuel injectors
Dustin Andrew Borror, Norwalk, IA (US)
Assigned to Collins Engine Nozzles, Inc., Des Moines, IA (US)
Filed by Delavan Inc., West Des Moines, IA (US)
Filed on Aug. 16, 2021, as Appl. No. 17/403,810.
Application 17/403,810 is a division of application No. 15/656,714, filed on Jul. 21, 2017, granted, now 11,098,900.
Prior Publication US 2022/0099298 A1, Mar. 31, 2022
Int. Cl. F23R 3/28 (2006.01); F23D 11/38 (2006.01); F23R 3/34 (2006.01)
CPC F23R 3/286 (2013.01) [F23D 11/38 (2013.01); F23R 3/28 (2013.01); F23R 3/283 (2013.01); F23R 3/343 (2013.01); F23R 2900/00017 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method of making a fuel injector, comprising:
positioning an inner body within an outer body;
engaging a retention tab of the inner body within a retention groove defined within an inner surface of the outer body;
retaining the inner body relative to the outer body;
heating the inner body and the outer body to define a joint axially offset from the retention tab along the inner body, wherein the joint is located radially between the inner body and the outer body; and
redundantly retaining the inner body within the outer body with the joint, wherein the retention groove is a recess configured to receive the retention tab therein to prevent axial movement of the inner body in both an upstream and a downstream direction.