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:
Mar. 01, 2022

Filed:

Feb. 03, 2020
Applicant:

Mitsubishi Heavy Industries, Ltd., Tokyo, JP;

Inventors:

Yoshihiro Ishikawa, Tokyo, JP;

Isao Tomita, Tokyo, JP;

Kenichiro Iwakiri, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/44 (2006.01); F04D 17/10 (2006.01);
U.S. Cl.
CPC ...
F04D 29/444 (2013.01); F04D 17/10 (2013.01);
Abstract

A vaned diffuser provided on a downstream side of an impeller of a centrifugal compressor. The vaned diffuser includes: a diffuser passage forming portion having a hub-side surface and a shroud-side surface and forming an annular diffuser passage on a downstream side of the impeller; and a plurality of diffuser vanes provided in the diffuser passage at intervals in a circumferential direction of the impeller. A fillet is formed in a connection portion between each of the diffuser vanes and at least one of the hub-side surface and the shroud-side surface. Also, where R is a radius of the fillet and b is a vane height of each of the diffuser vanes, and a maximum value of R/b on a downstream side of a throat position of the diffuser passage is larger than a maximum value of R/b on an upstream side of the throat position of the diffuser passage.


Find Patent Forward Citations

Ishikawa, Yoshihiro. (2022). Vaned diffuser and centrifugal compressor (U.S. Patent No. 11261878). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11261878

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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