EP 1532721 A2 20050525 - INTERNAL VENTILATING SYSTEM FOR A ROTATING ELECTRICAL MACHINE SUCH AS A MOTOR VEHICLE ALTERNATOR
Title (en)
INTERNAL VENTILATING SYSTEM FOR A ROTATING ELECTRICAL MACHINE SUCH AS A MOTOR VEHICLE ALTERNATOR
Title (de)
SYSTEM ZUR INNENBELÜFTUNG EINER ROTIERENDEN ELEKTRISCHEN MASCHINE, INSBESONDERS EINER KRAFTFAHRZEUG-LICHTMASCHINE
Title (fr)
SYSTEME DE VENTILATION INTERNE D UNE MACHINE ELECTRIQUE TOURNANTE TELLE QU UN ALTERNATEUR NOTAMMENT DE VEHICULE AUTOMOBILE
Publication
Application
Priority
- FR 0302023 W 20030630
- FR 0208134 A 20020628
Abstract (en)
[origin: WO2004004096A2] The invention concerns a rotating electrical machine, comprising inside a housing, a fixedly mounted stator and a rotor rotatably mounted in the stator, the ventilating system including in particular at least one ventilator integral with the rotor and capable of generating a cooling air stream inside the housing, radial air intake orifices (20) arranged in the housing, and cooling air discharge ports (22) arranged in said housing in a ring opposite the periphery of the ventilator and mutually separated by fins (24) stiffening the housing in the port region. The system is characterized in that the angle of inclination of the fins (24) relative to the tangent perpendicular to the radial direction (R) ranges between 38 DEG and 52 DEG . The invention is for use for motor vehicle alternators.
IPC 1-7
IPC 8 full level
H02K 5/20 (2006.01); H02K 9/06 (2006.01); H02K 5/18 (2006.01)
CPC (source: EP US)
H02K 5/207 (2021.01 - EP US); H02K 5/18 (2013.01 - EP US)
Citation (search report)
See references of WO 2004004096A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2841705 A1 20040102; FR 2841705 B1 20090123; EP 1532721 A2 20050525; JP 2005532019 A 20051020; US 2006012253 A1 20060119; US 7138735 B2 20061121; WO 2004004096 A2 20040108; WO 2004004096 A3 20040408
DOCDB simple family (application)
FR 0208134 A 20020628; EP 03748192 A 20030630; FR 0302023 W 20030630; JP 2004516898 A 20030630; US 51867405 A 20050829