A wind powered device for ventilation and/or air circulation for vehicles (including road vehicles and boats), trailers, buildings or any substantially flat roofed structure requiring ventilation and/or air circulation. The invention relates to a device 10 for ventilation and/or air circulation comprising a rotor assembly 12 that comprises a fan 30 and a rotor 20 operatively connected to the fan and capable of being rotated by moving air to drive the fan to rotate. The rotor comprises a base plate 32 and at least two rotor blades 22A, 22B that are generally curved and extend upward from the base plate in a spaced overlapping relation with their concave, internal opposing surfaces 23 defining an air passage between the rotor blades. Additionally, a portion of the external surface 25, 25A, 25B of one or both rotor blades comprise a plurality of raised and/or recessed surface features 26.
Rotor driven ventilator with surface modifications
2024-06-19
Patent
Electronic Resource
English
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / F24F Klimatisierung , AIR-CONDITIONING |