Patent · US Active

Method and bearing for supporting rotatable devices, particularly a medical scanner

US8319385B2 · kind B2 · utility

5Cited by

4References

13Claims

0Family size

Assignees

Rothe Erde GmbH · DE
THYSSENKRUPP TRANSRAPID GMBH · DE

Inventors

Uwe-Otto Breucker · Geseke, DE
Wolfgang Claus · Lippetal, DE
Jörg Rollmann · Lippstadt, DE
Freidrich Löser · Riemerling, DE
Qinghua Zheng · San Jose, US
Markus Bauer · Oberkochen, DE

Key dates

Filing date	Aug 13, 2008
Grant date	Nov 27, 2012
Priority date	—
Expiry date	Jun 8, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16C2316/10
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A method is provided for supporting rotatable devices, particularly a medical scanner having an inner ring and an outer ring. According to the invention, the inner ring and outer ring are guided without contact in the axial and/or radial direction by the magnetic field of electromagnets, and the distance between them is monitored and controlled by means of distance sensors. For a bearing implementing said method according to the invention, the outer ring is made in multiple parts and has a U-shaped cross section that is open to the inside in the assembled state, into which the inner ring (1, 10, 11) extends, and electromagnets and distance sensors are disposed in the axially and radially opposite areas of the inner ring or outer ring.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.