Propeller fan, and air blower, air conditioner, and hot-water supply outdoor unit including the same

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United States of America Patent

PATENT NO 9863433
SERIAL NO

14411590

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The propeller fan includes a boss including a rotation axis, a plurality of blades formed on an outer periphery of the boss, and a bellmouth arranged so as to surround the plurality of blades at a trailing edge side of each of the blades. Each blade has a bending portion that bulges toward an upstream side of the air current in a cross-sectional shape in a radial direction, and a bend of the bending portion of the blade at an inner side of the bellmouth is set to be gentler than a bend of the bending portion of the blade at an outer side of the bellmouth.

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First Claim

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Patent Owner(s)

  • MITSUBISHI ELECTRIC CORPORATION

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kato, Yasuaki Tokyo, JP 15 92
Kono, Atsushi Tokyo, JP 24 93
Tadokoro, Takahide Tokyo, JP 41 200

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