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US 2013/0156561 A1Published application
Impeller for axial flow fan and axial flow fan using the same
AssigneeMinebea Co., Ltd.
InventorsTakako OTSUKA, Takeshi OZAWA
Life of this patent
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Abstract
There is provided an impeller for an axial flow fan, which includes a plurality of blades arranged in a circumferential direction. In each of the blades, with respect to a center point of a chord length of the blade, a leading edge side shape of the blade and a trailing edge side shape of the blade are line-symmetric, and a shape of the blade at one face side is different from a shape of the blade at the other face side.
Claims7
An impeller for an axial flow fan, comprising:
- a plurality of blades arranged in a circumferential direction,
- wherein in each of the blades,
- with respect to a center point of a chord length of the blade, a leading edge side shape of the blade and a trailing edge side shape of the blade are line-symmetric, and
- a shape of the blade at one surface side is different from a shape of the blade at the other surface side.
1 more element
An axial flow fan comprising:
- an impeller including a plurality of blades arranged in a circumferential direction;
- a motor configured to rotate the impeller;
- and
- a casing which accommodates the impeller, and includes a base portion supporting the motor,
- wherein in each of the blades,
- with respect to a center point of a chord length of the blade, a leading edge side shape of the blade and a trailing edge side shape of the blade are line-symmetric, and
- a shape of the blade at one surface side is different from a shape of the blade at the other face side.
4 more elements
Dependencies are inferred from the claim text.