Emission regulations in California typically require exhaust treatment with a 3-way catalyst to achieve emission standards for inboard boat engines. The relevant legislation of EPA (Environmental Protection Agency) comes also into effect for Sea-Doo Sport Boats with the engine model year 2013. The lube oil consumption (LOC) of the engine has a decisive influence on the durability of a 3-way catalyst. Sustained, an excessively high oil consumption damages the sensitive surface of the catalyst wash coat and leads to a rapid deterioration of the catalyst conversion rate because of “poisoning” with oil ash. As a way to reduce the lube oil consumption of a combustion engine, the Air Plasma Spray (APS) coating of the cylinder bore was implemented as part of an engine development project.
Plasma Coating to Replace Cast Iron Cylinder Liners in Production
Sae Technical Papers
2012 Small Engine Technology Conference & Exhibition ; 2012
2012-10-23
Conference paper
English
Plasma Coating to Replace Cast Iron Cylinder Liners in Production
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