Method for drilling shaker bores into the cooling channel of a single-part piston
US6772846B1 · kind B1 · utility
15Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2003 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Mar 7, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49996
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for drilling shaker bores into a cooling channel of a single-part piston, in which gudgeon-pin bosses each having a gudgeon-pin bore and piston shaft elements are molded onto the piston head via a tie-up substantially extending fully around in the form of a ring. Passage bores are drilled into the tie-up coaxially with the shaker bores to be drilled into the cooling channel, and the shaker bore is drilled into the underside of the piston head with a drilling bit inserted in the respective passage bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.