Patent ID: 9169800
Filing Date: 2015-10-27
Classification: F02F,Y10T

Abstract:
1. A piston for an internal combustion engine, comprising: a 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 and in substantial radial alignment with said ring belt region; and a non-stick coating material bonded to at least one of said undercrown surface and at least a portion of said cooling gallery, said non-stick coating material being resistant to the build-up of carbon deposits thereon when oil contacts said at least one of said undercrown surface and at least a portion of said cooling gallery, and said non-stick coating material being at least substantially chrome-nitride.