Turbine generator and method of operating a turbine generator
US11105217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2020 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Oct 19, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2205/03
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A turbine generator contains a turbine part and a generator part. The turbine contains a turbine wheel. A sealing arrangement is arranged between the turbine wheel and the generator part, the sealing effect of which varies during operation. The generator part further has a generator shaft, which is supported by an axial bearing configured as a magnetic bearing with two coils axially spaced apart from each other. A bearing ring is arranged between these coils with an axial distance from the coils. To ensure a safe operation, a setpoint value for the axial distance is varied to change the sealing effect of the sealing arrangement. Alternatively or additionally, it is provided that when a current threshold of a coil current is exceeded, a control signal is emitted to control the flow of the medium or the rotational speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.