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:
Aug. 06, 2019
Filed:
Nov. 08, 2016
Applicant:
Delta Electronics, Inc., Taoyuan, TW;
Inventors:
Assignee:
DELTA ELECTRONICS, INC, Taoyuan, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04D 17/16 (2006.01); F04D 29/28 (2006.01); F04D 29/30 (2006.01); F04D 29/42 (2006.01); F04D 29/66 (2006.01);
U.S. Cl.
CPC ...
F04D 29/281 (2013.01); F04D 17/16 (2013.01); F04D 29/30 (2013.01); F04D 29/4226 (2013.01); F04D 29/666 (2013.01);
Abstract
A centrifugal fan includes a frame and an impeller. The impeller is disposed within the frame. The impeller includes a hub, a first blade group and a second blade group. The hub includes a center part, an inclined part and a connection part. The first blade group is connected with the connection part of the hub. The second blade group is disposed on the inclined part of the hub. There is a first distance between the second blade group and the first blade group. There is a second distance between the second blade group and the center part of the hub.