Patent · US Expired

Rotary-anode X-ray tube comprising a sleeve bearing

US5619549A · kind A · utility

0Cited by

3References

20Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Axel Vetter · Hamburg, DE
Christoph Bathe · Hamburg, DE

Key dates

Filing date	Nov 3, 1995
Grant date	Apr 8, 1997
Priority date	—
Expiry date	Nov 3, 2015

Classification

Technology area (CPC H)Electricity
CPC primaryH01J2235/106
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A rotary-anode X-ray tube including a sleeve bearing with a stationary and a rotatable bearing portion having facing bearing faces, at least one of which is provided with a groove pattern, has a lubricant which is liquid at least in the operating condition present between the bearing faces. A reduction of bearing wear is achieved by addition of a solid having a low sliding friction to the lubricant.

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