Piston with anti-carbon coating and method for applying an anti-carbon coating on a piston
AssigneeMAHLE International GmbH
InventorsJason BIENEMAN, Nikhil NACHAPPA
Life of this patent
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Abstract
A piston having a piston crown with a combustion chamber, and a circumferential ring belt extending from the piston crown and having a plurality of ring grooves separated by piston lands. At least one of the piston lands, ring grooves or top surface of the crown is provided with a coating comprising hexagonal boron nitride. The coating can be made solely of hexagonal boron nitride, or can additionally include a resin. The coating can be a single layer coating or a multiple layer coating.
Claims17
A piston for an internal combustion engine comprising:
- a piston crown having a combustion chamber, and
- a circumferential ring belt extending from the piston crown and having a plurality of ring grooves separated by piston lands,
- wherein at least one exterior surface of the piston is provided with a coating comprising hexagonal boron nitride.
A method of providing an anti-carbon coating on a piston having a crown and a circumferential ring carrier with a plurality of ring grooves and piston lands, the method comprising applying a coating comprising hexagonal boron nitride to at least one exterior surface of the piston.
Dependencies are inferred from the claim text.