Balancing pockets

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United States of America Patent

PATENT NO 9909423
SERIAL NO

14642215

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Importance

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Abstract

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The invention relates to a drum rotor wheel for a fan having bulges to accommodate balancing weights. A drum rotor wheel according to the invention has several blades that are curved forward. The blades have a leading edge and a trailing edge. A top disc and a bottom disc are provided on the drum rotor wheel. At least one blade of the drum rotor wheel has a bulge on its leading edge. This bulge minimizes the area of flow separation, as a result of which the magnitude of the flow separation is likewise minimized. In other words, due to the bulge, the efficiency of the drum rotor wheel is increased.

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Patent Owner(s)

Patent OwnerAddress
EBM-PAPST MULFINGEN GMBH & CO KGGERMAN MOORE FINN GEN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bohl, Katrin Künzelsau, DE 11 96
Hoff, Markus Künzelsau, DE 2 19
Strohmeier, Reinhard Rot Am See, DE 6 32

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