Method for piston coating
US6761931B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2003 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Jan 17, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2254/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A piston or similar cylindrical work piece is wear coated with a liquid coating material comprised of a solid component carried by a volatile solvent. The coating material is applied, from a closed reservoir, by a synchronously rotated distribution roller, to a larger diameter coating roller that is continually heated to a temperature sufficient to remove a majority of the solvent. Simultaneously, the piston workpiece is pre heated to a comparable temperature before being engaged with the coating roller under a relatively high pressure. A series of thin, pre dried layers is applied to the workpiece surface sufficient to produce the a final wear layer of a desired final thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.