Piston-Cylinder assembly of an internal combustion engine
US5560283A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 26, 1995 |
| Grant date | Oct 1, 1996 |
| Priority date | — |
| Expiry date | May 26, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2203/0882
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A piston having at least one piston ring in combination with a cylinder of a two-stroke internal combustion engine. The piston is made from an aluminum alloy and has a running layer covering at least 80% of the running surface of the piston. The running layer is made from resin-bound graphite. The piston ring has a crowned running surface and is made from cast iron or steel. The cylinder includes a running surface where at least the running surface is made from an aluminum alloy. The running surface has a roughness of less than 1 micron. The running layer on the piston has a thickness between 10 and 20 microns. The graphite particles which form the running layer have a size between 1 and 10 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.