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Cooling fan for radiator

a cooling fan and radiator technology, applied in the field of electric fans, can solve the problems of limited size of cooling fans for use with radiators in motor vehicles, difficult to achieve satisfactory heat dissipation effects, etc., and achieve the effect of improving wind pressur

Inactive Publication Date: 2007-07-19
KING SHING AUTOMOBILE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention is a cooling fan for a vehicle radiator that has high wind pressure during operation and produces minimal noise. It includes a hollow hub with blades that extend from it. The blades have a rim at their distal end, which increases the wind pressure when the blades catch air during rotation. This design improves heat dissipation and ensures a satisfactory cooling effect."

Problems solved by technology

However, it is difficult to achieve a satisfactory heat dissipation effect while keeping the cooling fan in silence.
Due to limited installation space, the size of the cooling fan for use with a radiator in a motor vehicle is limited.

Method used

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  • Cooling fan for radiator
  • Cooling fan for radiator
  • Cooling fan for radiator

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Embodiment Construction

[0016] Referring to FIGS. 2˜4, a cooling fan 22 in accordance with the present invention is shown comprising a hollow hub 24, and a plurality of blades 26 radially extending from and equiangularly arranged around the periphery of the hollow hub 24. The blades 26 each have the distal end respectively connected to one another, forming a rim that reinforces the structural strength of the cooling fan 22. Further, the connection between each two adjacent blades 26 is chamfered. The connecting portion between each adjacent blades 26 gives an extended fan blade area that increases the wind pressure when the cooling fan 22 is being rotated by a motor (not shown) to catch air, thereby enhancing heat exchange action of intake air with the radiator (not shown). The design of the invention also reduces noises. As it is well known that fan noise level has a great concern with the friction force between the blades and the air. Further, vibration of the cooling fan itself results in a high noise. ...

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Abstract

A cooling fan is disclosed to have a hollow hub, and a plurality of blades respectively radially extending from and equiangularly spaced around the periphery the periphery of the hollow hub, the blades each having a distal end joined to one another to form a rim.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to electric fans and more particularly, to a cooling fan for use in a motor vehicle to dissipate heat from the radiator of the motor vehicle. [0003] 2. Description of the Related Art [0004] In a motor vehicle, a cooling fan is mounted on the radiator and driven by a motor to induce currents of air toward the radiator, thereby dissipating heat from the radiator into the outside open air. [0005] When selecting a cooling fan, it is necessary to consider the performance of the cooling fan subject to the factors of air volume, noise level, wind pressure, type of bearing, and service life. The factor of air volume has a great concern with the diameter, thickness, revolving speed and blade design. Normally, a cooling fan of a relatively higher revolving speed provides a relatively heat dissipation effect. Fan blade thickness also determines the air volume. However, it is difficult to achieve a...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B63H1/16
CPCF04D29/384F04D29/326
Inventor LEE, YI HSUN
Owner KING SHING AUTOMOBILE PARTS