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Vehicular-type generator and forced air cooling blower combination

  • US 4,450,389 A
  • Filed: 08/05/1982
  • Issued: 05/22/1984
  • Est. Priority Date: 08/27/1981
  • Status: Expired due to Term
First Claim
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1. Vehicular generator-forced air circulation blower combination havinga three-phase alternator (1) adapted to be driven at widely varying speeds (nE) from a vehicular-type engine to supply a self-contained network (11, 13) with direct current power havinga field winding (5);

  • a plurality of armature windings (6, 7,

         8) corresponding to the phases of the alternator;

    a power rectifier system (12,

         14) connected to the respective armature windings and providing direct current output for the self-contained network (11,

         13),a blower (2) providing forced air circulation (A);

    and comprisingan induction motor (4) mechanically connected to the blower (2) to drive the blower with a drive torque which depends on frequency of the alternating current output from the alternator; and

    wherein the motor is a three-phase motor having three motor armature windings, the motor armature windings being subdivided into motor winding portions (16a, 16b;

    17a, 17b;

    18a, 18b), one of the motor winding portions (16a, 17a, 18a) of the motor armature windings being voltage windings connected in parallel across the armature windings (6, 7,

         8) of the alternator, and the other motor armature winding portions (16b, 17b, 18b) of the motor armature winding being current windings, serially connected between the respective armature windings (6, 7,

         8) of the alternator and the rectifier system (12,

         14).

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