US 12,270,355 B2
Combustion cylinder end face components including thermal barrier coatings
Daniel J. Mohr, Columbus, IN (US); Robert Earl Hoye, Columbus, IN (US); Timothy Shipp, Seymour, IN (US); and Leonard W. Brancamp, Columbus, IN (US)
Assigned to Cummins Inc., Columbus, IN (US)
Filed by Cummins Inc., Columbus, IN (US)
Filed on Jun. 14, 2023, as Appl. No. 18/334,455.
Application 18/334,455 is a continuation of application No. PCT/US2021/072951, filed on Dec. 16, 2021.
Claims priority of provisional application 63/126,666, filed on Dec. 17, 2020.
Prior Publication US 2023/0332555 A1, Oct. 19, 2023
Int. Cl. F02F 1/24 (2006.01); F01L 3/04 (2006.01); F02F 3/14 (2006.01)
CPC F02F 1/24 (2013.01) [F01L 3/04 (2013.01); F02F 3/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for a combustion cylinder of a reciprocating piston engine, the apparatus comprising:
a combustion cylinder end face component including a first side configured to face the combustion cylinder and extending in a radial direction of the combustion cylinder and a pocket recessed into the first side and including a recessed pocket surface, the combustion cylinder end face component being one of a piston and a cylinder head; and
a thermal barrier coating inlaid in the pocket, the thermal barrier coating comprising a ceramic-metallic layer directly coating the recessed pocket surface and a ceramic layer directly coating the ceramic-metallic layer and including an outer surface facing the combustion cylinder, the thermal barrier coating filling the pocket to define a planar surface including at least a portion of the first side and the thermal barrier coating.