| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of controlling the instability in fluid film bearings by using a magnetic bearing in combination with a fluid film bearing. <P>SOLUTION: The fluid film bearing 18 serves as the primary load carrying bearing and the magnetic bearing assembly 12 controls the instability of the fluid film bearing. This efficient combination results in bearings that can be used at high speeds without having neither stability nor reliability problems. An alternative method of controlling the instability in fluid film bearings is to disturb the flow in the axial direction. A sleeve (journal) bearing, for example, can be manufactured such that the bearing axis is skewed with the shaft axis or a variable geometry bearing can be manufactured to allow for bearing angular misalignment. <P>COPYRIGHT: (C)2012,JPO&INPIT |
