Propeller fan

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11333168
APP PUB NO 20200158129A1
SERIAL NO

16604727

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In a blade of a propeller fan, an inclination angle (φ) is made by a straight line passing through an outer circumferential side end and an inner circumferential side end of a radial cross section of the blade with a second plane orthogonal to a center axis of a hub. In a blade end of the blade, one end in front of the other end viewed in the rotation direction of the propeller fan is a leading blade end, while the other end behind the leading blade end is a trailing blade end. The blade is shaped such that the inclination angle (φ) monotonically increases, in the direction from the intermediate position toward the trailing blade end, in an area extending from an intermediate position between the leading blade end and the trailing blade end to the trailing blade end.

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Patent Owner(s)

  • DAIKIN INDUSTRIES, LTD.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iwata, Tooru Osaka, JP 8 46
Tomioka, Hirotaka Osaka, JP 13 100

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