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:
Apr. 05, 2016
Filed:
Oct. 14, 2014
Applicant:
Nidec Corporation, Kyoto, JP;
Inventors:
Tomotsugu Sugiyama, Kyoto, JP;
Teiichi Hirono, Kyoto, JP;
Shinichiro Noda, Kyoto, JP;
Akihiro Kimura, Kyoto, JP;
Yoshiharu Ikegami, Kyoto, JP;
Tomohiro Hasegawa, Kyoto, JP;
Masafumi Fujimoto, Kyoto, JP;
Tomohiro Yoneda, Kyoto, JP;
Assignee:
NIDEC CORPORATION, Kyoto-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16C 32/06 (2006.01); F04D 29/057 (2006.01); F16C 33/74 (2006.01); F04D 29/063 (2006.01); F04D 29/08 (2006.01); F16C 17/10 (2006.01); F04D 25/06 (2006.01); F04D 29/051 (2006.01);
U.S. Cl.
CPC ...
F04D 29/057 (2013.01); F04D 25/06 (2013.01); F04D 25/062 (2013.01); F04D 25/0626 (2013.01); F04D 29/0513 (2013.01); F04D 29/063 (2013.01); F04D 29/083 (2013.01); F16C 17/107 (2013.01); F16C 32/0633 (2013.01); F16C 33/745 (2013.01); F16C 2360/46 (2013.01);
Abstract
A dynamic pressure bearing apparatus includes a bearing portion; a shaft; a substantially annular bushing; a radial dynamic pressure bearing portion; and a seal gap. A minute horizontal gap extending radially is defined between an upper surface of the bearing portion and a lower surface of the bushing. The seal gap is arranged to be in communication with an exterior space through the horizontal gap.