Abrégé

A fan structure comprising a base, a fan inlet funnel coupled to the base, the fan inlet funnel having an inner surface for conducting air flow into a fan inlet and an outer surface and a plurality of external ribs coupled to the outer surface of the fan inlet funnel.

Classes IPC  ?

• F04D 25/08 - Ensembles comprenant des pompes et leurs moyens d'entraînement le fluide énergétique étant l'air, p.ex. pour la ventilation
• F04D 29/26 - Rotors spécialement adaptés aux fluides compressibles
• F04D 29/44 - Moyens de guidage du fluide, p.ex. diffuseurs
• F04D 29/54 - Moyens de guidage du fluide, p.ex. diffuseurs
• F04D 29/60 - Montage; Assemblage; Démontage
• F24F 7/007 - Ventilation à écoulement forcé

Abrégé

A forward swept centrifugal fan wheel comprising a first endring (10), a second endring (11), a plurality of blades (12) connected between the first endring and the second endring, each blade having a substantially continuous arcuate form extending along an axis parallel to an axis of rotation (A-A), and each blade having a substantially continuous arcuate cross-section taken with respect to a plane which extends normally from the axis of rotation (A-A).

Classes IPC  ?

• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges