| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a multirobe foil fluid bearing capable of supporting a journal by an excellent fluid lubricating film causing neither the increase of friction and wear at the start nor the fall of load capacity. <P>SOLUTION: The entire length of a circular arc face part 45 formed by connecting adjacent vertex parts 44 is formed to bulge onto the bearing holding member 30 side. Consequently, since an inflection point is not formed as before at the circular arc face part 45 constituting the bearing sliding face of a foil 40, a part with which the journal 20 comes in strong contact at the start is eliminated to suppress the increase of friction and wear and the fall of load capacity of the fluid bearing. Further, since excellent wedge shape narrowed toward the end can be formed from the vertex part 44 forming a large clearance part 51 during rotation to a small clearance part 52, a fluid lubricating film is easily formed to enlarge the load capacity of the bearing. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
