Peter Klaus Bachmaan,Anand Kumar Dokania,Wilhelmus Cornelis Keur,Gereon Vogtmeier,Willem Potze,Christian Herbert Blome
申请号：
US15312340
公开号：
US10094425B2
申请日:
2015.04.01
申请国别(地区):
US
年份:
2018
代理人:
摘要：
The present invention relates to hydrodynamic bearings, X-ray tubes, X-ray systems, and a method of manufacturing a hydrodynamic bearing for an X-ray tube. The rotor of a hydrodynamic bearing is supported, in steady-state operation, by the pressure of lubricant which is pumped through grooves in the rotor. When the rotor is speeding up or slowing down, the pumping force will not be sufficient to lift the rotor clear of a stationary bushing, and damage, caused by direct contact of the metal surfaces of the bearing, can occur. Providing special coatings on the bearing surfaces can ameliorate this effect.
