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US 5,413,877 AGranted
Combination thermal barrier and wear coating for internal combustion engines
AssigneeMoller International, Inc.
InventorMichael J. Griffith
Life of this patent
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AssigneeMoller International, Inc.
InventorMichael J. Griffith
Estimating the term…
A thermal barrier and wear coating having high strength, low conductivity, a low thermal expansion coefficient and good adhesion qualities, where the wear coating is self-lubricating and has high temperature resistance, a hard wear resistant matrix, a low coefficient of friction and is easy to machine to a smooth surface. The thermal barrier is applied to the internal engine cylinder surface to reduce the heat rejection and thus reduce the need for air or liquid cooling. The self-lubricating wear coating is applied over the thermal barrier to prevent contact between the moving engine parts and the thermal barrier. The wear coating has a low friction coefficient so that it does not generate substantial additional heat and is self-lubricating to withstand temperatures up to 900.degree. C.
A protective coating for friction-bearing combustion chamber wall surfaces of an internal combustion engine, said protective coating having low thermal expansion coefficient, good adhesion to the base material, and high strength maintenance at elevated temperatures, comprising:
A friction-bearing machine surface having a protective coating thereon, said protective coating having low thermal expansion coefficient, good adhesion to the base material, and high strength maintenance at elevated temperatures, comprising:
Dependencies are inferred from the claim text.