Method and apparatus for controlling a bearing through a pressure boundary
US8487493B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2009 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Nov 27, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/85978
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotating apparatus includes a housing, a shaft at least partially disposed within a first pressure environment defined by the housing, a first magnetic bearing supporting the shaft and being at least partially disposed within the first pressure environment, a sensor operable to sense a position of the shaft relative to the first magnetic bearing, a controller disposed in a second pressure environment independent of the first pressure environment and operable to communicate with the sensor and to generate a control signal for the first magnetic bearing based on the sensed position, and a communication device operable to communicate the control signal between the controller and the first magnetic bearing and to communicate the sensed position between the sensor and the controller without penetrating a pressure boundary defined between the first and second pressure environments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.