Columnar zirconium oxide abrasive coating for a gas turbine engine seal system
US6190124A · kind A · utility
79Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1997 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Nov 26, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/606
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A gas turbine engine seal system includes a rotating member having an abrasive tip disposed in rub relationship to a stationary, abradable seal surface. The abrasive tip comprises a zirconium oxide abrasive coat having a columnar structure that is harder than the abradable seal surface such that the abrasive tip can cut the abradable seal surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.