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. 04, 2022
Filed:
Aug. 21, 2019
Hefei University of Technology, Hefei, CN;
Hao Yan, Hefei, CN;
Qiang Li, Hefei, CN;
Xiaozhen Su, Hefei, CN;
Yu Zhang, Hefei, CN;
Liang Chen, Hefei, CN;
Liping Chai, Hefei, CN;
Haixia Shi, Hefei, CN;
HEFEI UNIVERSITY OF TECHNOLOGY, Hefei, CN;
Abstract
A method for designing an impeller with a small hub-tip ratio includes the following steps: S1: obtaining an outer diameter D of the impeller with the small hub-tip ratio; S2: determining the number of blades and an airfoil of the blade of the impeller with the small hub-tip ratio; S3: obtaining a blade solidity sat a rim of the impeller with the small hub-tip ratio and a blade solidity sat a hub of the impeller with the small hub-tip ratio; S4: dividing the blades of the impeller with the small hub-tip ratio into m cylindrical sections in an equidistant manner, marking the cylindrical sections as 1-1, 2-2, . . . , m-m in sequence from the hub to the rim, and obtaining an airfoil setting angle βof each of the cylindrical sections; and S5: performing a correction on the value of the airfoil setting angle βin S4.