Friction piece in a lubricated medium, working at contact pressures higher than 200 MPa
US8859078B2 · kind B2 · utility
6Cited by
7References
17Claims
0Family size
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Key dates
| Filing date | Oct 19, 2007 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | May 11, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24355
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Friction part in a lubricated medium working at contact pressures above 200 MPa and having a contact surface that is textured and subjected, before or after texturizing, to a case hardening treatment for a tribological function, wherein the surface is subjected to operations for producing a periodic network of micrometric cavities having predefined shapes and sizes and a period adapted to the width of the contact surface in order to promote passage to elastohydrodynamic lubrication regime.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.