Invention Grant
- Patent Title: Centrifugal fan
- Patent Title (中): 离心风机
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Application No.: US10963621Application Date: 2004-10-14
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Publication No.: US07399161B2Publication Date: 2008-07-15
- Inventor: Yu-Chien Kao , Tsu-Liang Lin , Kuo-Cheng Lin , Wen-Shi Huang
- Applicant: Yu-Chien Kao , Tsu-Liang Lin , Kuo-Cheng Lin , Wen-Shi Huang
- Applicant Address: TW Taoyuan County
- Assignee: Delta Electronics, Inc.
- Current Assignee: Delta Electronics, Inc.
- Current Assignee Address: TW Taoyuan County
- Agency: Muncy, Geissler, Olds & Lowe, PLLC
- Priority: TW92130681A 20031104
- Main IPC: F01D5/22
- IPC: F01D5/22

Abstract:
A centrifugal fan includes a hub and an impeller. The impeller is composed of a plurality of blades mounted around an outer circumference of the hub. The paraxial side of the blade forms a backward leaning structure, while the non-paraxial side thereof forms a forward leaning structure. A chamfer structure also can be formed at a paraxial side of each blade to enlarge the air inlet of the fan. Each blade further includes a protrusion, which is located at a side opposite to the inlet and extends toward a center of the hub, to increase the airflow rate through the fan motor. The centrifugal fan further includes an anti-decompression cap connected to an inlet side of the impeller to prevent an axial flow of the intake air from decompression.
Public/Granted literature
- US20050095132A1 Centrifugal fan Public/Granted day:2005-05-05
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