Patent ID: 9163579
Filing Date: 2015-10-20
Classification: B23P,F02F,Y10T

Abstract:
1. A piston for an internal combustion engine, comprising: a piston body formed of steel alloy, said piston body having an upper combustion surface configured for direct exposure to combustion gases within a cylinder bore with an undercrown surface beneath said upper combustion surface and having a ring belt region configured for receipt of at least one piston ring adjacent said upper combustion surface with a cooling gallery configured radially inwardly from said ring belt region and in substantial radial alignment with said ring belt region; and a non-stick material contained in or bonded to the portion of said steel alloy forming at least one of said undercrown surface and at least a portion of said cooling gallery for preventing carbon deposits from forming on said at least one of said undercrown surface and at least a portion of said cooling gallery when oil contacts said at least one of said undercrown surface and at least a portion of said cooling gallery, said non-stick material including cobalt.