US 11,692,487 B2
Heat shielding for internal fuel manifolds
Jason A. Ryon, Carlisle, IA (US); Lev A. Prociw, Johnston, IA (US); and Gregory A. Zink, Des Moines, IA (US)
Assigned to Collins Engine Nozzles, Inc., Des Moines, IA (US)
Filed by Delavan Inc., West Des Moines, IA (US)
Filed on Jan. 19, 2022, as Appl. No. 17/578,926.
Application 17/578,926 is a division of application No. 16/224,127, filed on Dec. 18, 2018, granted, now 11,255,270.
Prior Publication US 2022/0136443 A1, May 5, 2022
Int. Cl. F02C 7/22 (2006.01); F23R 3/28 (2006.01); F02C 7/24 (2006.01)
CPC F02C 7/24 (2013.01) [F02C 7/222 (2013.01); F23R 3/283 (2013.01); F05D 2240/35 (2013.01); F05D 2260/231 (2013.01); F05D 2270/3032 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method of making a fuel injector system comprising:
additively manufacturing a circumferentially extending outer support together with a circumferentially extending inner support, a feed arm extending radially between the inner support and the outer support, and a heat shield extending around the feed arm from the outer support to the inner support wherein the heat shield is spaced apart from the feed arm with an insulative gap, wherein the additively manufacturing includes building in an axial direction beginning from downstream portions of the inner and outer supports, wherein additively manufacturing includes forming the feed arm with a plurality of vaulted chambers therein defined between columns, wherein the columns are attached to the heat shield, and wherein the columns extend parallel to the axial direction.