Vanes for the impeller of a ventilator, impeller, and axial ventilator, diagonal ventilator, or radial ventilator

A ventilation device, oblique flow technology, applied in the fields of impeller blades, radial flow ventilation devices, and axial flow ventilation devices, can solve problems such as noise reduction

Pending Publication Date: 2020-05-01
ZIEHL ABEGG AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problem to be solved by the present invention is to design and modify the blades for the impellers of ventilation devices, in particular for the blades of the impellers of axial flow ventilation devices, diagonal flow ventilation devices or radial flow ventilation devices, so that during the operation of the ventilation device Sound issues are improved, especially the noise emitted

Method used

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  • Vanes for the impeller of a ventilator, impeller, and axial ventilator, diagonal ventilator, or radial ventilator
  • Vanes for the impeller of a ventilator, impeller, and axial ventilator, diagonal ventilator, or radial ventilator
  • Vanes for the impeller of a ventilator, impeller, and axial ventilator, diagonal ventilator, or radial ventilator

Examples

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Embodiment Construction

[0039] figure 1 The impeller 1 according to the invention for an axial fan is shown in perspective front view. Five blades 2 are arranged on the hub 3 . It is conceivable that this impeller could also use other numbers of blades, advantageously three to nine blades. The impeller 1 is made of fiber-reinforced plastic using injection molding. Other manufacturing methods are conceivable, such as aluminum die casting or welded sheet metal designs. In this exemplary embodiment, the impeller 1 is shown as a one-piece impeller, but the impeller 1 could also be assembled from individual blades and a hub, or a complete molded rotor joined with the rotor parts of the motor to form one impeller.

[0040] The blade 2 comprises a leading edge region 6 and a trailing edge region 7 . The blade leading edge region 6 and the blade trailing edge region 7 each connect the pressure side of the blade 2 with the suction side of the blade 2, which can be seen in image 3 . The blade tip 5 is f...

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PUM

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Abstract

The invention relates to vanes for the impeller of a ventilator, in particular an axial ventilator, diagonal ventilator, or radial ventilator, comprising a waved leading edge and a waved trailing edge, wherein the waves on the leading edge have a larger wavelength than the waves on the trailing edge. The invention also relates to an impeller with corresponding vanes and to axial ventilators/diagonal ventilators and radial ventilators comprising an impeller with corresponding vanes.

Description

technical field [0001] The invention relates to a blade for an impeller of a ventilation device, in particular a blade for an impeller of an axial flow ventilation device, a diagonal flow ventilation device or a radial flow ventilation device. [0002] Furthermore, the invention relates to an impeller equipped with such blades, as well as an axial flow ventilation device, a diagonal flow ventilation device or a radial flow ventilation device having an impeller equipped with corresponding blades. Background technique [0003] The fundamental concern of ventilator manufacturers is to provide ventilators that emit low noise while achieving the specified and required aerodynamic performance (volume flow and air pressure increase) and efficiency. Specifically, the ventilation installed in the system should emit low noise. [0004] From EP2418389A2 an axial flow fan is known which, due to the special configuration of the fan wheel in its axially outer region, leaks the airflow th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/30F04D29/38
CPCF05D2250/182F05D2250/183F04D29/30F04D29/384F05D2240/303F05D2240/304F05D2250/184F05D2250/611F05D2250/181F04D29/281F01D5/04
Inventor T·高斯丹尼尔·赛弗里德托马斯·比茨F·勒歇尔G·霍夫曼S·吕恩
Owner ZIEHL ABEGG AG
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