F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 25/08 (2006.01) F04D 25/06 (2006.01) F04D 29/52 (2006.01)
Patent
CA 2438916
An air impeller, comprising a frame, a bladed wheel (4) provided with blades (42) for producing a substantially axial flow of a gaseous medium, an alternating-current motor (5) for rotating the bladed wheel, said alternating- current motor comprising a fixed stator (52-54) and a ro- tating rotor, and a frequency converter (6) or inverter for controlling the alternating-current motor, and in which the rotor of the alternating-current motor is integrated with the bladed wheel (4), being placed on its outer rim, and the stator is placed in the frame of the air impeller outside the rotor so that the stator produces rotation of both the rotor and the bladed wheel. The frequency converter (6) or inverter is integrated with the stator or a part of it to form a unitary , frequency-converter or inverter-controlled air im- peller structure.
L'invention concerne une soufflante comprenant un châssis, une roue à pales (4) dont les pales (42) produisent un flux sensiblement axial de milieu gazeux, un moteur à courant alternatif (5) qui assure la rotation de la roue et qui comprend un stator fixe (52-54) et un rotor rotatif, ainsi qu'un convertisseur de fréquence (6) ou un inverseur de fréquence pour contrôler le moteur à courant alternatif. Le rotor est intégré à la roue (4), situé sur la jante externe, et le stator est placé dans le châssis de la soufflante, à l'extérieur du rotor, de sorte que le stator assure la rotation du rotor et de la roue. On intègre le convertisseur de fréquence (6) ou l'inverseur de fréquence au stator ou à une partie du stator, de manière à former une structure unitaire de soufflante commandée par convertisseur ou inverseur de fréquence.
Forsman Kimmo
Hyvarinen Juhani
Ikonen Ilkka T.
Kohonen Reijo
Poyhonen Matti
Flakt Woods Ab
Robic
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