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:
Dec. 26, 2006
Filed:
Aug. 27, 2003
Applicants:
Junya Kawabata, Tokyo, JP;
Takashi Enomoto, Tokyo, JP;
Shoji Ito, Tokyo, JP;
Inventors:
Assignee:
Ebara Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F01D 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The centrifugal impeller includes a plurality of blades (), a plurality of fluid paths (P) for delivering a fluid from an impeller inlet () to an impeller outlet (), and a shroud () and a hub () for forming the fluid paths (P). Each of the fluid paths (P) is formed between adjacent two of the blades (). A curved line (L) of the shroud () curves so as to project toward the hub () in a region from a blade inlet (A) to a predetermined position (C) of the blade (), and the curved line (L) curves so as to project toward the opposite side of the hub () in a region from the predetermined position (C) to a blade outlet (B).