Invention Grant
- Patent Title: Mechanical system comprising a shaft coupled to a bearing, and method for manufacturing such a system
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Application No.: US16626594Application Date: 2018-07-03
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Publication No.: US11624399B2Publication Date: 2023-04-11
- Inventor: Mohamadou Bocar Diew , Yves René Alexis Gachon , Fabrice Prost
- Applicant: H.E.F.
- Applicant Address: FR Andrezieux Boutheon
- Assignee: H.E.F.
- Current Assignee: H.E.F.
- Current Assignee Address: FR Andrezieux Boutheon
- Priority: FR1756265 20170703,FR1756841 20170719
- International Application: PCT/FR2018/051649 WO 20180703
- International Announcement: WO2019/008266 WO 20190110
- Main IPC: F16C9/04
- IPC: F16C9/04 ; F16C33/10 ; F16C33/04 ; F02F3/00
Abstract:
The present invention relates to a mechanical system (1), comprising a bearing (4) and a shaft (10) coupled to the bearing (4), especially for an internal combustion engine, being subjected to average contact pressures of less than 200 MPa. The shaft (10) has at least one area (12) provided with an anti-seizing surface coating (20), having a surface hardness at least twice that of the bearing (4), and a microtexturation (30) comprised of a set of individual microcavities (31), distributed in said area (12). The invention also relates to a method for manufacturing such a mechanical system (1).
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