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:
Mar. 05, 2019
Filed:
Sep. 16, 2014
Applicant:
Mitsubishi Heavy Industries Compressor Corporation, Tokyo, JP;
Inventor:
Shuichi Yamashita, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 17/12 (2006.01); F04D 17/10 (2006.01); F04D 29/30 (2006.01); F04D 29/28 (2006.01);
U.S. Cl.
CPC ...
F04D 17/10 (2013.01); F04D 17/122 (2013.01); F04D 29/284 (2013.01); F04D 29/30 (2013.01); F05D 2240/301 (2013.01); F05D 2240/307 (2013.01);
Abstract
The impeller is provided with a disk that rotates about an axis line, and a plurality of blades provided at intervals around the circumference of the disk. Defining the blade angle of the tip of each blade as a first blade angle, the tip has a constant-tip-angle area in which the first blade angle is constant from an inlet where fluid flows in toward an outlet side, and an increasing-tip-angle area that is continuous with the outlet side of the constant-tip-angle area and that has a gradually increasing first blade angle towards the outlet.