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    • 3. 发明申请
    • ELECTRIC MOTOR
    • 电动马达
    • US20160248303A1
    • 2016-08-25
    • US15027517
    • 2014-10-13
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • Hiroaki KIYOKAMITakuya KODAMAYasuhiro SAITOMitsutaka MATSUMURA
    • H02K9/19H02K1/27
    • H02K9/19F16H57/04H02K1/2706H02K7/003
    • An electric motor includes a rotor shaft, and the rotor shaft has a shaft-core oil passage and radial oil passages. The shaft-core oil passage includes an inner wall facing radially inward. The radial oil passages are provided toward a radial outer side of the rotor shaft from the shaft-core oil passage. The radial oil passages penetrate through the rotor shaft. The radial oil passages have corresponding one of first connection openings connected to the shaft-core oil passage, so that oil that is not discharged from the first connection openings to the radial oil passage is supplied to other supply destinations. A distance of the first connection openings from the shaft core is shorter than a distance, from the shaft core, of that part of the inner wall which is not provided with the first connection openings.
    • 电动机包括转子轴,转子轴具有轴芯油路和径向油路。 轴芯油通道包括面向径向向内的内壁。 径向油路从轴芯油路朝向转子轴的径向外侧设置。 径向油通道穿过转子轴。 径向油路具有与轴芯油路连接的相应的一个第一连接开口,使得不从第一连接口向径向油路排出的油被供给到其他供给目的地。 第一连接开口与轴芯的距离比未设置有第一连接开口的内壁部分的轴芯的距离短。