Bidirectional centrifugal fan

An electric traction motor is provided with a bidirectional centrifugal fan comprising: an inner rotor (26) provided with connection means for connecting the inner rotor (26) to a drive shaft (16) rotating about a rotation axis, an outer rotor (28) rotating about the rotation axis and positioned rad...

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Bibliographische Detailangaben
Hauptverfasser:	ORRENIUS, ULF, SIMA, MIKAEL
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	An electric traction motor is provided with a bidirectional centrifugal fan comprising: an inner rotor (26) provided with connection means for connecting the inner rotor (26) to a drive shaft (16) rotating about a rotation axis, an outer rotor (28) rotating about the rotation axis and positioned radially outwards of the inner rotor (26), bearing means (30) for rotating the outer rotor (28) with respect to the inner rotor (26) about the rotation axis between at least a first angular position and a second angular position, and blades (36) having a resilient flexible leading edge portion (36A) hinged to the inner rotor (26) and a radially extending trailing edge portion (36B) fixed to the outer rotor (28), so as to pivot between a first inclined position and a second inclined position with respect to the inner rotor (26) when the outer rotor (28) moves between the first angular position and the second angular position.