Propeller fan, fluid feeder and molding die
In a propeller fan, a plurality of blades (21A and 21B) for blowing are coupled together with a space in a rotational direction kept therebetween, and a coupled region has a form for performing the blowing according to the rotation thereof. This structure provides a propeller fan greatly contributin...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | In a propeller fan, a plurality of blades (21A and 21B) for blowing are coupled together with a space in a rotational direction kept therebetween, and a coupled region has a form for performing the blowing according to the rotation thereof. This structure provides a propeller fan greatly contributing to energy-saving properties and resource-saving design. |
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