Blowing apparatus, suction panel therefor and straightening...

Details Blowing apparatus, suction panel therefor and straightening... Blowing apparatus, suction panel therefor and straightening...

F - Mech Eng,Light,Heat,Weapons

24

F

F24F 13/24 (2006.01) F04D 29/42 (2006.01) F04D 29/54 (2006.01) F04D 29/66 (2006.01)

Patent

CA 2127071

A blowing apparatus includes a suction passage having a suction chamber enclosed by rigid body surfaces, suction ports opening toward the suction chamber for sucking air from outside, and a fan suction port serving as a suction port for a blower, the suction ports, the suction chamber, and the fan suction port being arranged in nonlinear form. In such blowing apparatus, a doughnut-like straightening guide is arranged on an opening edge on the suction chamber side of the fan suction port. The straightening guide has a projection toward the suction chamber, an appropriate thickness in the radial direction, and a guide passage matching the fan suction port in the middle thereof. A:

Cette invention concerne un extracteur d'air dont le côté aspiration comporte un plénum d'aspiration à parois rigides dont le fond est troué d'ouvertures d'aspiration et le dessus, d'une lumière d'aspiration ouvrant sur le ventilateur d'extraction, lesdites lumière et ouvertures d'aspiration n'étant pas alignées. L'objet de l'invention de l'invention comporte une redresseur de flux en forme de beigne disposé du côté plénum d'aspiration de la lumière d'aspiration susmentionnée. Le redresseur de flux fait saillie dans ce plénum et présente une épaisseur de paroi appropriée ainsi qu'une section de passage adaptée à celle de la lumière d'aspiration et centrée par rapport à cette dernière.

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