The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2005
Filed:
Mar. 31, 2003
Applicant:
Juergen Oelsch, Hohenroth, DE;
Inventor:
Juergen Oelsch, Hohenroth, DE;
Assignee:
Minebea Co., Ltd., Nagano, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16C032/06 ;
U.S. Cl.
CPC ...
Abstract
A hydrodynamic bearing having a shaft () and a bearing sleeve (), which encloses the shaft with a slight radial clearance forming a concentric bearing gap. An equalizing volume cavity () is formed at at least one end of the bearing. At least one micro-passage () connects the bearing gap via appropriate openings with the equalizing volume cavity (). Bearing fluid completely fills the bearing gap () and the micro-passage () and at least partially fills the equalizing volume cavity (). The bearing fluid forms a continuous fluid film between the bearing gap () and the equalizing volume cavity ().