US 11,959,412 B2
Pistons and piston assemblies for internal combustion engines
Adam C. Cecil, Columbus, IN (US)
Assigned to Cummins Inc., Columbus, IN (US); and Achates Power, Inc., San Diego, CA (US)
Filed by Cummins Inc., Columbus, IN (US)
Filed on May 3, 2022, as Appl. No. 17/661,778.
Claims priority of provisional application 63/183,859, filed on May 4, 2021.
Prior Publication US 2022/0356834 A1, Nov. 10, 2022
Int. Cl. F01P 1/04 (2006.01); F01P 3/08 (2006.01); F02F 3/18 (2006.01); F16J 1/00 (2006.01); F16J 1/18 (2006.01)
CPC F01P 3/08 (2013.01) [F02F 3/18 (2013.01); F16J 1/005 (2013.01); F16J 1/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A piston pin for coupling a connecting rod to a piston, the piston pin comprising:
a cylindrical piston pin body including a first surface configured to be engaged to an end of the connecting rod with the piston pin body positioned within the piston to couple the connecting rod to the piston, the piston pin body extending along a longitudinal axis that is transverse to the connecting rod, the piston pin body further including an outer surface extending around the longitudinal axis from the first surface, the outer surface having a non-circular shape around the longitudinal axis from one side of the first surface to an opposite side of the first surface, the opposite sides of the first surface and the non-circular shape extending a length of the piston pin body along the longitudinal axis.