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:
Jan. 23, 2018
Filed:
Jun. 13, 2013
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Mitsubishi Heavy Industries Compressor Corporation, Tokyo, JP;
Ryosuke Saito, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION, Tokyo, JP;
Abstract
Provided is an impeller and a fluid machine which have an annular hub () and a plurality of blades () radially arranged along an outer peripheral surface of the hub (). On a pressure surface (P) of the blade (), there are provided a first pressure surface () extending from the hub () side at an angle of 90 degrees or less with respect to the forward direction of the rotation direction (A), and a second pressure surface () extending from the first pressure surface () at an angle of more than 90 degrees with respect to the forward direction of the rotation direction (A). This configuration reduces a low-energy fluid stagnating on a suction surface side of the blade, achieving higher impeller efficiency.