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    Power transmission device for four wheel drive vehicles
    1.
    发明授权
    Power transmission device for four wheel drive vehicles 失效
    四轮驱动车辆动力传动装置

    公开(公告)号：US4974696A

    公开(公告)日：1990-12-04

    申请号：US250297

    申请日：1988-09-28

    申请人： Shin Miyajima ,  Takenori Kano ,  Fumitomo Yokoyama ,  Yasunari Nakamura ,  Masaharu Tanaka ,  Koujiro Kuramochi

    发明人： Shin Miyajima ,  Takenori Kano ,  Fumitomo Yokoyama ,  Yasunari Nakamura ,  Masaharu Tanaka ,  Koujiro Kuramochi

    IPC分类号： B60K17/35 ,  B60K17/346 ,  B60K23/08

    CPC分类号： B60K23/0808 ,  B60K17/3462

    摘要： A differential motion limiting device, for a power transmission device for four wheel drive vehicle, to regulate differential motion of a center differential device includes a wet-type multi plate clutch and an hydraulic actuator. And a switching valve is attached to an oil passage to the hydraulic actuator. In normal running condition, a switching valve is in connecting condition, and a hydraulic pressure being varied by driving conditions is applied to a hydraulic actuator. Under this condition, the clutch is slippingly engaged by certain engaging force so that torque, per certain ratio, is transmitted to the front and the rear wheels. In high speed condition, such as the maximum speed state like an overdrive, or a vehicle speed more than 100 km/h, sensors detect such state, then the switching valve is switched, and the clutch is released. As a result, lubrication oil is flowed between friction plates and separators of the clutch to release heat therefrom.

    摘要翻译： 用于四轮驱动车辆的动力传递装置的用于调节中心差速装置的差速运动的差动运动限制装置包括湿式多板离合器和液压致动器。 并且切换阀附接到通向液压致动器的油路。 在正常运行状态下，切换阀处于连接状态，并且通过驱动条件改变的液压压力被施加到液压致动器。 在这种情况下，离合器通过一定的接合力滑动地接合，使得一定比例的扭矩传递到前轮和后轮。 在高速状态下，例如过速驱动的最大速度状态或超过100km / h的车速，传感器检测到这样的状态，切换阀，离合器被释放。 结果，润滑油在摩擦片和离合器的分离器之间流动，以从其中释放热量。

    Magneto-optical storage medium and magneto-optical overwrite system with magnetic characteristic change by variation of thermal condition for recording information
    3.
    发明授权
    Magneto-optical storage medium and magneto-optical overwrite system with magnetic characteristic change by variation of thermal condition for recording information 失效
    磁光存储介质和具有磁特性的磁光覆盖系统通过记录信息的热条件的变化而改变

    公开(公告)号：US5142513A

    公开(公告)日：1992-08-25

    申请号：US510703

    申请日：1990-04-20

    申请人： Hideaki Takehara ,  Shin Miyajima ,  Yasuo Shibata

    发明人： Hideaki Takehara ,  Shin Miyajima ,  Yasuo Shibata

    IPC分类号： G11B11/105

    CPC分类号： G11B11/10584 ,  G11B11/10506 ,  G11B11/10521 ,  G11B11/10586

    摘要： A magneto-optical storage medium and overwrite system comprises a first magnetic layer (reading/writing layer) (3), a second magnetic layer (auxiliary layer) (5) and a third magnetic layer (initializing layer) (7), each of which is a rare earth-transition metal alloy, and interface layers (4,6) for isolating magnetic exchange interaction between the magnetic layers, respectively. The second magnetic layer is initialized by the magnetization of the third magnetic layer (7) at room temperature. The first magnetic layer and/or the second magnetic layer is heated by a laser beam (P1) for demagnetization and remagnetization. The demagnetized portion of the second magnetic layer is remagnetized to the opposite direction by the demagnetizing field from the periphery. The demagnetized portion of the first magnetic layer is remagnetized to the same direction of the second magnetic layer.

    摘要翻译： 磁光存储介质和重写系统包括第一磁性层（读/写层）（3），第二磁性层（辅助层）（5）和第三磁性层（初始化层）（7）） 其是稀土 - 过渡金属合金，以及分别用于隔离磁层之间的磁交换相互作用的界面层（4,6）。 第二磁性层由室温下第三磁性层（7）的磁化初始化。 通过用于去磁和再磁化的激光束（P1）来加热第一磁性层和/或第二磁性层。 第二磁性层的去磁部分通过与周边的退磁场相反地被再次磁化。 第一磁性层的去磁部分被再次磁化成与第二磁性层相同的方向。