Engine cylinder liners based on aluminum alloys and intermetallic compounds, and methods of obtaining them
US4537167A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 5, 1983 |
| Grant date | Aug 27, 1985 |
| Priority date | — |
| Expiry date | Dec 5, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12021
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to cylinder liners for internal combustion engines comprising a matrix based on aluminum alloys of high mechanical strength, obtained by powder metallurgy, and methods of producing them. The liners comprise a dispersion of grains of an added intermetallic compound, apart from the dispersion of such intermetallic compounds as may exist in the alloy, the added compound having a melting temperature of over 700.degree. C. The liners are obtained by extruding or sintering a mixture of powders. The liners of the invention may be used particularly in the automobile industry and in any kind of industry where liner-piston units of good compatibility must be obtained from aluminum alloys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.