Fan

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United States of America Patent

PATENT NO 11768090
APP PUB NO 20220397121A1
SERIAL NO

17599972

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A fan, in particular axial fan and preferably backward-curved radial fan, having an impeller equipped with blades, an electric motor for rotating the impeller and a device for determining the airflow when the impeller is rotating. The device for determining the airflow includes a volume flow measuring wheel arranged in the air flow, which is arranged upstream of the impeller on the inflow side. The air volume flow is calculated or derived from the rotational speed of the volume flow measuring wheel.

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Patent Owner(s)

Patent OwnerAddress
ZIEHL-ABEGG SE74653 KÜNZELSAU

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Herold, Alexander Hardthausen, DE 13 229
Loercher, Frieder Braunsbach, DE 21 34

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