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:
Feb. 20, 2018
Filed:
Jan. 23, 2013
Ihi Corporation, Tokyo, JP;
Hideaki Tamaki, Tokyo, JP;
IHI CORPORATION, , JP;
Abstract
The centrifugal compressor () includes: an impeller (); and a casing () accommodating the impeller (). The casing () includes: an inlet (); an impeller-accommodating portion () in which the impeller () is disposed; an annular flow passageway () formed around the impeller (); an outlet () communicating with the annular flow passageway (); and an annular chamber () formed around at least one of the inlet () and the impeller-accommodating portion (). An inner circumferential surface () of the casing () facing the impeller-accommodating portion () is provided with a groove () which communicates the impeller-accommodating portion () and the annular chamber () with each other and which is formed over the entire circumference of the inner circumferential surface (). In addition, the annular chamber () communicates with another space only through the groove ().