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. 08, 2015
Filed:
Jun. 21, 2012
Applicant:
Shih-chieh Lin, New Taipei, TW;
Inventor:
Shih-Chieh Lin, New Taipei, TW;
Assignee:
ASIA VITAL COMPONENTS CO., LTD., New Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); F04D 25/06 (2006.01); F04D 29/08 (2006.01); F04D 29/66 (2006.01);
U.S. Cl.
CPC ...
F04D 25/0613 (2013.01); F04D 29/083 (2013.01); F04D 29/662 (2013.01);
Abstract
A fan rotor protection structure includes a fan wheel and an annular member. The fan wheel has a hub and a plurality of blades. The hub has a top portion and a side wall portion, which together define a receiving space in the hub. The annular member has one side aligned with and connected to an end surface of the side wall portion opposite to the top portion, and defines an opening communicable with the receiving space in the hub. With the annular member, foreign matters are stopped from entering into and accumulating in the fan rotor, enabling largely increased fan service life and more stable flow field around the fan.