セラミックス系複合材料をコーティングした舶用低速ディーゼル機関のピストンリングおよびシリンダライナ

概要

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This paper describes the fruit of the project by The Technological Research Association of Highly Reliable Marine Propulsion Plant. A future marine diesel engine will be required with superior performance, output, efficiency and reliability using degraded fuel. It has attendant requirements of wear characteristics and strength of cylinder components far exceeding those of conventional engines. Ceramic base composite material was developed and coated on pistonrings and cylinderliners by using a low pressure plasma splay process. They were tested by full scale test engines in the objective “future” conditions. As a result, the wear of plasma coated pistonrings and cylinderliners were small enough to prolong overhauling interval to 4 years. Plasma spraying coating process also makes possible to apply strong materials for cylinerliner.
社団法人日本マリンエンジニアリング学会の論文