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US 7,458,585 B2Granted
Sliding member and production process thereof
AssigneeNissan Motor Co., Ltd.
InventorsTakahiro Hamada, Makoto Kano, Yutaka Mabuchi
Life of this patent
Estimating the term…
Abstract
There is provided a sliding member including a base body and a hard carbon coating formed on the base body to define a sliding surface for sliding contact with an opposing member under lubrication according to one embodiment of the present invention. The hard carbon coating has an outermost surface portion lower in hydrogen content than a remaining portion thereof, or an outermost coating layer lower in hydrogen content than at least one other coating layer.
Claims45
A sliding member, comprising:
- a base body;
- a hard carbon coating formed on the base body to define a sliding surface for sliding contact with an opposing member, the hard carbon coating having an outermost surface portion lower in hydrogen content than a remaining portion thereof;
- and
- a lubricating oil applied to the sliding surface, the lubricating oil comprising at least one friction modifier selected from the group consisting of an ashless fatty-ester friction modifier and an ashless aliphatic-amine friction modifier.
1 more element
A sliding member, comprising:
- a base body;
- a hard carbon coating formed on the base body to define a sliding surface for sliding contact with an opposing member, the hard carbon coating having two or more coating layers laminated together in a thickness direction thereof, the laminated coating layers including an outermost coating layer lower in hydrogen content than at least one other coating layer;
- and
- a lubricating oil applied to the sliding surface, the lubricating oil comprising at least one friction modifier selected from the group consisting of an ashless fatty-ester friction modifier and an ashless aliphatic-amine friction modifier.
1 more element
A sliding member, comprising:
- a base body;
- a hard carbon coating formed on the base body to define a sliding surface for sliding contact with an opposing member, the hard carbon coating having an outermost surface portion lower in hydrogen content than a remaining portion thereof;
- and
- a lubricating agent applied to the sliding surface, the lubricating agent predominantly comprising a hydroxyl group containing compound.
1 more element
A sliding member, comprising:
- a base body;
- a hard carbon coating formed on the base body to define a sliding surface for sliding contact with an opposing member, the hard carbon coating having two or more coating layers laminated together in a thickness direction thereof, the laminated coating layers including an outermost layer lower in hydrogen content than at least one other coating layer;
- and
- a lubricating agent applied to the sliding surface, the lubricating agent predominantly comprising a hydroxyl group containing compound.
1 more element
Dependencies are inferred from the claim text.