Title:
フォイル式流体軸受
Document Type and Number:
Japanese Patent JP4287021
Kind Code:
B2
Abstract:
A fluid bearing includes a foil assembly that supports a journal inside a stationary retaining member includes a cylindrical top foil that is positioned radially inward, a cylindrical mid-foil that is positioned outside the top foil and corrugated bump foils positioned outside the mid-foil. In order to suppress a small amplitude vibration of the journal in the low rotational rate region, the bump foils, are separated into six in the circumferential direction. In order to suppress the synchronous vibration instability phenomenon, the top foil and the mid-foil are wound in opposite directions from each other. In order to suppress the whirl instability phenomenon, the sum of the frictional damping forces generated by the lower bump foils is set to be larger than the sum of the frictional damping forces generated by the upper bump foils.
Inventors:
Mitsuo Matsushima
Application Number:
JP2000113222A
Publication Date:
July 01, 2009
Filing Date:
April 10, 2000
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
F16C25/04; F16C17/12
Domestic Patent References:
| JP63009521U | ||||
| JP58099514A | ||||
| JP55166524A | ||||
| JP54028958A | ||||
| JP52143356A | ||||
| JP10331846A |
Attorney, Agent or Firm:
Ken Ochiai
Kazuaki Niki
Kazuaki Niki