Piston having oil supply channel for hub bore holes
US8695559B2 · kind B2 · utility
3Cited by
13References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 13, 2008 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Jul 26, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J1/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A cylindrical piston for internal combustion engines, comprising a piston crown and a piston base, in the piston base a hollow space being provided, and in a piston base wall forming the hollow space pinholes being provided, characterized in that the outer circumferential surface in at least the piston base at least one oil guide is provided, the direction thereof having an axial component relative to the piston axis and the oil guide extending from the piston crown in the direction of a pinhole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.