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Blower assembly with pre-swirler

a technology of blower assembly and preswirler, which is applied in the direction of machines/engines, stators, liquid fuel engines, etc., can solve the problems of loss of blower assembly efficiency, increase drag, noise, vibration, etc., and achieve the effect of maximizing efficiency, reducing airflow restriction, and minimizing cos

Inactive Publication Date: 2008-08-07
VISTEON GLOBAL TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a blower assembly that includes a device for rotating a volume of air entering the blower assembly. The design of the blower assembly is simple and efficient, minimizing cost and airflow restriction while maximizing efficiency. The blower assembly includes a pre-swirler that is integrally formed with the blower housing, which helps to improve the performance of the blower assembly. The pre-swirler includes a centrally formed hub, an outer ring, and a plurality of vanes that extend radially outwardly from the centrally formed hub to the outer ring. The vanes have a leading edge, a trailing edge, and a surface formed between the leading edge and the trailing edge. The pre-swirler is formed integrally with the blower housing, which helps to improve the performance of the blower assembly.

Problems solved by technology

If the air is not rotated sufficiently, an increase in drag, noise, vibration, and a loss of efficiency of the blower assembly can occur.
While the assembly shown by the '127 patent is effective in varying the amount of air entering the blower, the assembly is costly and complex to manufacture.
Furthermore, the assembly requires a mechanism to control an amount of rotation of each of the blades relative to the blower housing, adding further cost and complexity thereto,

Method used

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  • Blower assembly with pre-swirler

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Embodiment Construction

[0016]The following detailed description and appended drawings describe and illustrate various exemplary embodiments of the invention. The description and drawings serve to enable one skilled in the art to make and use the invention, and are not intended to limit the scope of the invention in any manner.

[0017]FIG. 1 shows a blower assembly 10 including a first housing section 12 having a pre-swirler 14 formed therein, a second housing section 16, and a fan wheel 18. The blower assembly 10 is adapted to be disposed in a vehicle (not shown).

[0018]The first housing section 12 in the embodiment shown is formed from plastic. It is understood that the first housing section 12 can be formed from other materials as desired. The first housing section 12 includes an inlet aperture 20 and an outlet aperture (not shown) formed therein. The pre-swirler 14 is disposed in the inlet aperture 20. It is understood that the pre-swirler 14 can be formed integrally with the first housing section 12 or s...

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PUM

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Abstract

A blower assembly for use in a vehicle is disclosed, wherein the blower assembly includes a pre-swirler for causing a change of direction of air entering the blower assembly.

Description

FIELD OF THE INVENTION[0001]The invention relates to a blower assembly and more particularly to a blower assembly including a pre-swirler for causing air entering the blower assembly to change direction.BACKGROUND OF THE INVENTION[0002]Centrifugal fans or blowers are commonly used in the automotive, air handling, and ventilation industries for directing a forced flow of air through air conditioning components. In a typical blower assembly, air is drawn into a housing through an inlet aperture by a rotating blower or fan.[0003]Blower assemblies typically include an electrically driven impeller that rotates in a predetermined direction in the housing. The impeller includes one or more curved blades, which draw the air into the impeller axially along an axis of rotation and discharge the air radially outwardly therefrom.[0004]Blower assemblies in automotive applications have been fitted with pre-swirlers to cause a rotation or swirling of air entering the blower assembly. The pre-swirl...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04D17/08F04D29/44
CPCF04D29/441F04D29/444F05D2250/51
Inventor IYER, JAYANTHI
Owner VISTEON GLOBAL TECH INC