Labyrinth seal for disc turbine
US6682077B1 · kind B1 · utility
42Cited by
9References
13Claims
0Family size
Inventor
Key dates
| Filing date | Feb 13, 2002 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Apr 19, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/4476
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A disc turbine has a rotor assembly of spaced apart discs with at least one disc equipped with an annular labyrinth seal whose grooves interdigitate with a corresponding labyrinth seal mounted in the sidewall of the rotor housing. A pattern of aligned through holes in the rotor housing and the rotor housing seal assist in the axial and concentric alignment of the rotary assembly with respect to the stationary assembly, and the inspection of same, and provide access through at least one sensing port to working fluid proximal to the seal entrance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.