A vehicle main electric motor includes: a ring-shaped filling chamber, which is formed in contact with a ball bearing and a roller bearing in a direction of a rotation shaft, for filling with a semi-solid lubricant, and which has a central axis concentric with the rotation shaft; and a discharge section connected to the filling chamber, for inflow of the semi-solid lubricant from the filling chamber. A display member, which has a specific gravity lower than a specific gravity of the semi-solid lubricant, is arranged, in an interior of the discharge section, at an initial position that is a position not reached by the semi-solid lubricant during an initial greasing. The discharge section has a retaining part for retaining, at a movement position that is a determined position within the discharge section, the display member moving in a greasing direction due to pressure of the semi-solid lubricant during a supplemental greasing. At least a portion of visible light from the exterior reaches at least a portion of the movement position.


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    Titel :

    Vehicle main electric motor


    Beteiligte:
    KANEKO KENTA (Autor:in)

    Erscheinungsdatum :

    2021-04-20


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B61C Lokomotiven , LOCOMOTIVES / F16C SHAFTS , Wellen



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