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DRIVE MODULE WITH SPRAY COOLING OF ELECTRIC MOTOR

  • US 20140265658A1
  • Filed: 03/13/2013
  • Published: 09/18/2014
  • Est. Priority Date: 03/13/2013
  • Status: Active Grant
First Claim
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1. A drive module comprising:

  • a housing;

    an electric motor coupled to the housing, the electric motor having a stator, which is fixedly coupled to the housing, and a rotor that is rotatable within the stator,a pair of output members; and

    a transmission and differential assembly driven by the rotor of the electric motor to correspondingly drive the output members; and

    a cooling system that includes;

    a coolant passage formed in the rotor, the coolant passage extending parallel to a rotational axis of the rotor;

    a nozzle passage formed in the rotor, the nozzle passage intersecting the coolant passage and extending radially outwardly therefrom;

    a coolant sump that is configured to hold a coolant fluid; and

    an inlet pipe that is in fluid communication with the coolant sump and received into the coolant passage, the inlet pipe being configured to feed the coolant fluid from the coolant sump into the coolant passage;

    wherein the coolant fluid is gravity fed into the inlet pipe.

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