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.

Date of Patent:
Jan. 02, 2024

Filed:

Sep. 29, 2022
Applicant:

Kabushiki Kaisha Toyota Jidoshokki, Aichi, JP;

Inventors:

Fumiya Shinoda, Aichi, JP;

Fumihiro Suzuki, Aichi, JP;

Ryo Umeyama, Aichi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/056 (2006.01); F04D 25/06 (2006.01); F04D 17/10 (2006.01); F04D 29/58 (2006.01); F04D 29/053 (2006.01);
U.S. Cl.
CPC ...
F04D 29/056 (2013.01); F04D 17/10 (2013.01); F04D 25/0606 (2013.01); F04D 29/053 (2013.01); F04D 29/5806 (2013.01); F05D 2240/50 (2013.01); F05D 2240/60 (2013.01);
Abstract

A turbo fluid machine includes a rotary shaft configured to rotate in one rotational direction, and a thrust foil bearing that includes: a plurality of bump foils each having a corrugated shape and a plurality of top foils each having a bearing surface that faces a thrust collar. Each bump foil is divided into an outer peripheral foil and an inner peripheral foil in a radial direction of the rotary shaft. Ridges on the outer peripheral foil are inclined in the other rotational direction of the rotary shaft while extending from an edge of the outer peripheral foil adjacent to an inner peripheral side toward an outer peripheral side, and the ridges on the inner peripheral foil are inclined in the other rotational direction while extending from an edge of the inner peripheral foil adjacent to the outer peripheral side toward the inner peripheral side.


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