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. 24, 1992
Filed:
Sep. 05, 1991
Applicant:
Inventors:
Koji Nakagawa, Kashiwa, JP;
Junichi Kaneko, Ibaraki, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
4152081 ; 415148 ; 415161 ; 415165 ;
Abstract
A centrifugal compressor including a vaned diffuser provided with a plurality of stationary vanes disposed around an impeller for converting into kinetic energy of a discharged fluid into pressure. The diffuser further includes rotatable vanes unevenly distributed in the stationary vanes.