Pistons with bearing lands
US4876947A · kind A · utility
28Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1987 |
| Grant date | Oct 31, 1989 |
| Priority date | — |
| Expiry date | Mar 19, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2201/0448
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Pistons are discribed comprising a crown portion which also includes a piston ring belt and gudgeon-pin bosses and which crown portion comprises a ferrous allow and a seperate articulated skirt portion comprising a casting of aluminum alloy, steel or cast iron which also includes gudgeon-pin bores, the crown portion and the skirt portion having a common gudgeon-pin about which the articulated skirt portion is freely able to move relative to the crown portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.