Turbine seal rub protection means
US5496046A · kind A · utility
1Cited by
4References
8Claims
0Family size
Inventor
Key dates
| Filing date | Dec 7, 1994 |
| Grant date | Mar 5, 1996 |
| Priority date | — |
| Expiry date | Dec 7, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/445
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a compressible rotating machine having stationary and rotating elements and employing seal teeth between the stationary and rotating elements capable of being rubbed, worn and damaged by the rotating elements, the improvement which comprises providing a small patch of hard, cutting or grinding material on a small portion of the rotating elements disposed in opposition to the seal teeth and capable of intermittent cutting of the seal teeth during temporary contact so as to avoid mushrooming or of melting of the teeth and to leave them sharp and thin and to prevent grooving of the surface of the rotating elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.