Method for manufacturing siamese-type cylinder block and apparatus for casting blank for such cylinder block
US4831712A · kind A · utility
3Cited by
3References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1988 |
| Grant date | May 23, 1989 |
| Priority date | — |
| Expiry date | Apr 5, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49989
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing a siamese-type cylinder block, which comprises the steps of pouring under pressure a molten metal of aluminum alloy into a siamese-type cylinder barrel molding cavity with an expansion force applied to the sleeve placed in such cavity, and then removing the expansion force after the completion of solidification of the molten metal to cast a cylinder block blank, and subjecting the resulting blank to a working operation for forming the peripheral inner surface of the sleeve into a true circle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.