Aerostatic rotor bearing
US6404845B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2001 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | May 9, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/612
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A CT scanner (10) for obtaining a medical diagnostic image of a subject includes a stationary gantry (12), and a rotating gantry (14) rotatably supported on the stationary gantry (12) for rotation about the subject. A fluid bearing is interposed between the stationary gantry (12) and the rotating gantry (14) by means of radial and axial fluid bearing pads, (100) and (102) respectively. The fluid bearing provides a fluid barrier which separates the rotating gantry (14) from the stationary gantry (12). In a preferred embodiment, the fluid bearing provides for quieter CT scanner operation at high rotational speeds. Moreover, eliminating the physical contact between the gantries minimizes wear and optimizes longevity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.