A rotor cooling arrangement is provided for an electric machine used in a drive train of a work vehicle. The electric machine has a housing containing a stator disposed within the housing in a fixed position about a rotation axis. The rotor cooling arrangement includes a rotor disposed within the housing about the rotation axis. The rotor has a series of rotor discs with pockets in which magnets are disposed. The rotor discs are separated from each other along the rotation axis by a dielectric. A rotor shaft extends along the rotation axis and couples to the rotor discs to corotate relative to the stator about the rotation axis. The rotor shaft defines, in part, a cooling circuit through which flows coolant for cooling the rotor. The cooling circuit includes a feed passage internal to the rotor shaft that communicates with a cooling passage, in the form of an open groove in an outer surface of the rotor shaft, that communicates with an outlet opening spaced along the rotation axis from the rotor. The rotor closes off the open groove such that the cooling circuit is a closed loop circuit in which coolant circulates through the rotor shaft from the feed passage to the cooling passage to the outlet opening.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    CLOSED-CIRCUIT ROTOR COOLING ARRANGEMENT AND ELECTRIC MACHINE HAVING SAME


    Beteiligte:
    LONG RANDALL L (Autor:in) / WORLEY STACY K (Autor:in)

    Erscheinungsdatum :

    03.04.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



    ELECTRIC MACHINE HAVING ROTOR HUB WITH SHAPED PASSAGES FOR COOLING

    SHANMUKHA RAMA KRISHNA / MATHIVANAN ANAND / LOH JENN YEN | Europäisches Patentamt | 2024

    Freier Zugriff

    Electric machine having rotor hub with shaped passages for cooling

    SHANMUKHA RAMA KRISHNA / MATHIVANAN ANAND / LOH JENN YEN | Europäisches Patentamt | 2024

    Freier Zugriff

    Circuit arrangement and electric machine

    PATZAK ADRIAN / BACHHEIBL FLORIAN | Europäisches Patentamt | 2021

    Freier Zugriff

    ROTOR CARRIER FOR AN ELECTRIC MACHINE AND ELECTRIC MACHINE HAVING THE SAME

    MATSCHAS STEFFEN / EINENKEL STEFFEN / WALTER THOMAS et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    ROTOR FOR AN ELECTRIC MACHINE HAVING AN AXIALLY RUNNING COOLING DUCT

    SIEPKER CARSTEN / WIECZOREK CHRISTOPH / BACH REGINA et al. | Europäisches Patentamt | 2023

    Freier Zugriff