Invention Grant
US06606983B2 Ferrous pistons for diesel engines having EGR coating 有权
具有EGR涂层的柴油发动机的有色活塞

Ferrous pistons for diesel engines having EGR coating
Abstract:
A corrosion resistant piston for use in an exhaust gas recirculation diesel engine. The piston includes a crown portion having ring grooves formed around a periphery of the crown portion. The ring grooves are separated by ring lands. The piston also includes a piston rod connecting portion that extends from the crown portion. The piston is made of steel and includes an electroless coating of nickel having a maximum thickness of 8 micrometers.
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