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:
Nov. 19, 2024
Filed:
Apr. 28, 2021
Hitachi Industrial Products, Ltd., Tokyo, JP;
Kiyotaka Hiradate, Tokyo, JP;
Kazuhiro Tsukamoto, Tokyo, JP;
Yuta Mochizuki, Tokyo, JP;
Hiromi Kobayashi, Tokyo, JP;
Takahiro Nishioka, Tokyo, JP;
HITACHI INDUSTRIAL PRODUCTS, LTD., Tokyo, JP;
Abstract
A centrifugal compressor including: a diffuser in which a fluid flows in a centrifugal direction away from a rotary shaft; a return flow path which is provided downstream of the diffuser and in which fluid flowing in to a later-stage centrifugal impeller from the diffuser flows in a return direction back to the rotary shaft; a plurality of return vanes that are disposed in the shape of a circular vane centered on a centerline of the rotary shaft, and are installed in the return flow path; and a turning part, wherein an inlet blade angle (β) of an outlet guide vane provided to the downstream side, of the return vanes, is lying down more in the circumferential direction with respect to an inlet blade angle (α) of a inlet guide vane provided to the upstream side, of the return vanes (β<α).