Sealing in a hydraulic turbine unit
US7222861B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Sep 14, 2001 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Jul 6, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
System for providing sealing between a rotor and a turbine casing in a hydraulic turbomachine includes a sealing ring arranged in a peripheral region of the rotor. The sealing ring forms at least one hydrostatic bearing with respect to at least one of the rotor and the turbine casing. The at least one hydrostatic bearing includes at least two bearing surfaces which face one another. At least one of the at least two bearing surfaces is arranged on the sealing ring. At least another of the at least two bearing surfaces is arranged on at least one of the rotor and the turbine casing. At least one groove is formed on at least one of the at least two bearing surfaces. At least one pressure-liquid line is coupled to each of the at least one groove and a pressure-liquid supply. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.