Method and apparatus for patterning of bore surfaces
US7165430B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2005 |
| Grant date | Jan 23, 2007 |
| Priority date | — |
| Expiry date | Mar 3, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2270/20
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus comprises a rotating member having one or more rollers. The one or more rollers have a plurality of protuberances. The rollers may be advanced toward a surface during rotation of the rotating member, such as toward a bore surface. The protuberances are configured to make a pattern of discrete indentations in the surface upon engagement of the protuberances with the surface. The apparatus is particularly suited for creating oil-retention pockets in the surface of an engine cylinder and other uses. The apparatus may be used to create a pattern of oil-retention pockets or other pockets in a cylinder with varying pocket density in a single pass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.