公开(公告)号：US09874174B2

公开(公告)日：2018-01-23

申请号：US14395932

申请日：2013-05-06

Applicant: H.E.F.

Inventor： Christophe Heau ,  Laurent Bombillon ,  Philippe Maurin-Perrier

IPC: F02F1/00 ,  C23C16/26 ,  C23C16/50

CPC classification number: F02F1/004 ,  C23C16/26 ,  C23C16/50 ,  F02F2200/00 ,  F05C2253/06 ,  F05C2253/12

Abstract: An inside surface of an internal combustion engine liner is treated to have a surface roughness Ra smaller than 0.06 μm, and then receives a DLC coating. A method of producing the internal combustion engine liner includes: forming the liner from a metal material, polishing an inside surface of the liner to obtain a polished inside surface of roughness Ra smaller than 0.06 μm, and applying the DLC coating to the polished inside surface.