Fan mounting structure of ac generator for vehicle


PURPOSE:To improve the centrifugal force resistance and to increase the cooling efficiency of an AC generator by previously forming a fan flat part along the round of a pole core. CONSTITUTION:A rotor coil 6 is held to hold opposite two pole cores 3, which are integrally engaged by a knurl formed on the surface of a shaft 10. A front fan 4 and a rear fan 5 are held by a suitable method on both end faces of the core, and a rotor 7 is formed as a whole. A stator 1 is disposed on the outer periphery of the rotor. The outer periphery of a fan blade 9 is previously bent in the same or slightly larger than the shape of the round 8 of the core 3, secured to the end face of the core 3, and a bent part 8a is formed so that both are closely contacted at the rounded parts.




Download Full PDF Version (Non-Commercial Use)

Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    JP-S5620369-B2May 13, 1981

NO-Patent Citations (0)


Cited By (7)

    Publication numberPublication dateAssigneeTitle
    EP-0420371-A1April 03, 1991Lucas Industries Public Limited CompanyAn electrical rotary machine and a centrifugal fan for use in an electrical rotary machine
    EP-0935330-A2August 11, 1999Robert Bosch GmbhMachine synchrone, en particulier génératrice pour véhicule
    EP-0935330-A3January 17, 2001Robert Bosch GmbhSynchronous machine, in particular generator for a vehicle
    FR-2752341-A1February 13, 1998Bosch Gmbh RobertGeneratrice a griffes polaires
    US-6023112-AFebruary 08, 2000Mitsubishi Denki Kabushiki KaishaAlternating current generator with improved fan system
    US-6172433-B1January 09, 2001Mitsubishi Denki Kabushiki KaishaAlternating current generator with improved fans system
    US-6509660-B1January 21, 2003Mitsubishi Denki Kabushiki KaishaAlternating current generator with improved fan system