公开(公告)号：US10683777B2

公开(公告)日：2020-06-16

申请号：US15319644

申请日：2015-06-10

Applicant: H.E.F.

Inventor： Sandrine Henry ,  Christophe Heau

IPC: F01L1/16 ,  F01L1/047 ,  F16H53/02 ,  C23C16/02 ,  C23C16/04 ,  C23C16/26

Abstract: A cam treatment to reduce the friction coefficient thereof relative to a counterpart in an area provided with a hard coating made from amorphous Diamond-Like Carbon or DLC, involves disposing the cams on a support, bringing the support and the cams into a chamber placed under vacuum so as to clean the cams, bringing the support into relative movement along a trajectory of travel relative to a coating source, and taking the cams off the support before assembling them on a camshaft; the method involves disposing the cams on the support in a fixed configuration which is defined in such a way that the cams are brought successively opposite the source with orientations and at distances substantially identical relative to the source, to deposit a hard coating made from amorphous Diamond-Like Carbon or DLC, selectively on the fraction of the section of the cams that is oriented towards the source.

公开(公告)号：US10125868B2

公开(公告)日：2018-11-13

申请号：US14912496

申请日：2014-08-12

Applicant: H.E.F. ,  MAHLE INTERNATIONAL GMBH

Inventor： Sandrine Henry ,  Christophe Heau ,  Fabrice Prost ,  Roland Lochmann ,  Marco Maurizi

IPC: F16J1/16 ,  C23C16/27 ,  C23C16/50 ,  C23C14/06 ,  C23C14/00 ,  C23C14/02

Abstract: The piston pin has an anti-seize coating limited to an angular sector corresponding at least to a friction area submitted to a contact pressure along a preferential direction.