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Valeo Systemes Thermiques

François Franquelin

Manuel Henner

Bruno Demory

Elias Tannoury

Charles Roland

Youssef Beddadi

Emmanuel Henner

A ventilation blower wheel may have a hub and blades extending radially outwards from the hub between a blade root and a blade tip. Additionally, the blades of said blower wheel may have a backward/forward curvature as a result of a reversal in curvature along their span. Furthermore, said blades may have, between 20% and 80% along their span, at least one pitch variation, extending over a maximum span distance of 25%, of at least 2&#xb0; more or less than a linear pitch over said span distance.

Aerodynamically and acoustically improved car fan

Growing community of inventors

Le Mesnil Saint Denis, France

François Franquelin