Centrifugal fan

a centrifugal fan and fan body technology, applied in the direction of machines/engines, liquid fuel engines, other chemical processes, etc., can solve the problems of noise generated in the blower, noise generally generated by the blower, noise occurring, etc., and achieve the effect of reducing the generated nois
US20100074742A1Inactive Publication Date: 2010-03-25SAMSUNG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
SAMSUNG ELECTRONICS CO LTD
Publication Date
2010-03-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

A centrifugal fan includes a housing, a spiral impeller, a suction interrupting member. The housing includes a suction port and a discharge port. The housing further includes an outwardly curved cutoff portion at a side of the discharge port. The spiral impeller is coupled with a motor to suck air through the suction port of the housing in a rotation-axis direction and discharge the sucked air through the discharge port in a direction perpendicular to a rotation-axis. The suction interrupting member prevents air from being sucked into a neighborhood of the cutoff portion through the suction port.
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Description

CLAIM OF PRIORITY

[0001] This application claims the benefit of the earlier filing date, under 35 U.S.C. §119, to that patent application filed in the Korean Intellectual Property Office on Sep. 19, 2008 and assigned Serial No. 10-2008-0091954, the contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates to the field of centrifugal fans and more particularly, to a centrifugal fan for reducing noise generated in the area of a cutoff when air sucked into a scroll housing is discharged through a discharge port.

[0004] 2. Description of the Related Art

[0005] Blowers or fans are devices that generate an air flow. Such a blower includes an impeller for generating an air flow and a housing for guiding the air flow generated by the impeller. Blowers may be selected according to their application and operation. Industrial blowers may be mainly used for various intake / exhaust systems, such as air conditioni...

Claims

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