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:
Sep. 07, 2010
Filed:
Sep. 21, 2006
Chung-ping Chiang, Hsinchu Hsien, TW;
Jiing Fu Chen, Hsinchu Hsien, TW;
Yung-lo Chow, Hsinchu Hsien, TW;
Cheng-chung Yen, Hsinchu Hsien, TW;
Chung-Ping Chiang, Hsinchu Hsien, TW;
Jiing Fu Chen, Hsinchu Hsien, TW;
Yung-Lo Chow, Hsinchu Hsien, TW;
Cheng-Chung Yen, Hsinchu Hsien, TW;
Industrial Technology Research Institute, Hsinchu Hsien, TW;
Abstract
A centrifugal impeller employed in a centrifugal machine, includes a main body, the main body generally being conical and defining a shaft bore in a center portion thereof; and a plurality of blade groups evenly arranged surrounding the shaft bore in sequence, each of the blade groups having a plurality of blades wherein neighboring blades having an interval angle, and the number and corresponding interval angles of the blades of different blade groups are identical. The present impeller structure can be employed to distribute the concentrated energy of the discrete tones noise of the blades, which is generated by the high-speed rotation impeller, and further to reduce the operating tones noise.