INSULATION LAYER ON STEEL PISTONS

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20190211774A1
SERIAL NO

16354959

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A steel piston designed to improve thermal efficiency, fuel consumption, and performance of an engine is provided. The piston includes a steel body portion and a thermal barrier layer applied to an upper combustion surface and/or a ring belt to reduce the amount of heat transferred from a combustion chamber to the body portion. The thermal barrier layer has a thermal conductivity which is lower than a thermal conductivity of the steel body portion. The thermal barrier layer typically includes a ceramic material, for example ceria, ceria stabilized zirconia, and/or a mixture of ceria stabilized zirconia and yttria stabilized zirconia in an amount of 90 to 100 wt. %, based on the total weight of the ceramic material. The thermal barrier layer can also have a gradient structure which gradually transitions from 100 wt. % of a metal bond material to 100 wt. % of the ceramic material.

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Patent Owner(s)

Patent OwnerAddress
TENNECO INC500 NORTH FIELD DRIVE LAKE FOREST IL 60045

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schneider, Norbert G Ann Arbor, US 11 7

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