Piston pin bore and method of finishing
US4189932A · kind A · utility
7Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1978 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Jun 12, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49266
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A piston comprises a piston pin bore adapted to at least partially contain a piston pin. The bore is finished by a roll burnishing process which substantially simultaneously prestresses, smooths and distorts the bore into a predetermined hourglass configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.