Segmented labyrinth-type shaft sealing system for fluid turbines
US4436311A · kind A · utility
47Cited by
3References
7Claims
0Family size
Inventor
Key dates
| Filing date | Apr 20, 1982 |
| Grant date | Mar 13, 1984 |
| Priority date | — |
| Expiry date | Apr 20, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/46
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Springs are arranged in elastic fluid turbine seal ring systems to accomplish a condition of relatively large clearance while starting and during low load conditions but in cooperation with pressure forces occurring at higher loads permitting said seal ring to relocate to a position of relatively small clearance to improve sustained efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.