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:
Jul. 25, 2023
Filed:
Feb. 20, 2020
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Masato Yoshino, Mie, JP;
Kazuyoshi Harada, Mie, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 17/04 (2006.01); F01D 25/16 (2006.01); F02C 7/06 (2006.01); F16C 27/02 (2006.01); F16C 17/10 (2006.01);
U.S. Cl.
CPC ...
F16C 17/042 (2013.01); F01D 25/168 (2013.01); F02C 7/06 (2013.01); F16C 17/10 (2013.01); F16C 27/02 (2013.01); F05D 2220/30 (2013.01); F05D 2240/52 (2013.01); F16C 2360/23 (2013.01);
Abstract
A thrust foil bearinghaving a thrust bearing surface S formed by arranging a plurality of leavesside by side in a circumferential direction, in which each of the leaveshas a top foil portion Tf that forms the thrust bearing surface S, and a ratio of a circumferential length A of the top foil portion Tf of one of the leavesat a radially central position of the top foil portion Tf, to a radial length B from an inner diameter-side edgeto an outer diameter-side edgeof the top foil portion Tf is 0.66 or less.