Labyrinth seal for turbines
US9234434B2 · kind B2 · utility
2Cited by
13References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2014 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Sep 18, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2240/571
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improved labyrinth seal is described with the seal including a group of several fins forming circumferential barriers against the flow of a working fluid between stationary and rotating parts in a turbine, wherein within the group the volume between the penultimate fin and the last fin is altered compared to the average volume between other adjacent fins of the group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.