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    • 5. 发明授权
    • Power transmission device for four wheel drive vehicles
    • 四轮驱动车辆动力传动装置
    • US4909345A
    • 1990-03-20
    • US250296
    • 1988-09-28
    • Tatsuya IwatsukiTakenori KanoFumitomo YokoyamaYasunari NakamuraIsamu MinemotoTeruo AkashiMasaharu TanakaSeitoku Kubo
    • Tatsuya IwatsukiTakenori KanoFumitomo YokoyamaYasunari NakamuraIsamu MinemotoTeruo AkashiMasaharu TanakaSeitoku Kubo
    • B60K23/08
    • B60K23/0808
    • A power transmission device for four wheel drive vehicle includes a differential motion limiting device, for limiting differential motion of a center differential device, which is made up by a wet-type frictional clutch and a hydraulic actuator. Under running condition, the frictional clutch is engaged by certain engaging force, and considering frictional coefficient of roads, the clutch is engaged with some slips so that torque distribution to front and rear wheels becomes even (50:50), then torque is distributed from the center differential device to front and rear wheels. The line pressure is applied to the hydraulic actuator through a regulator valve. In normal running condition, the regulator valve reduces the line pressure pre certain ratio, the reduced pressure is applied to the hydraulic actuator. In the case the manual valve being shifted to R range or low speed position, the regulator valve is switched to apply the line pressure directly to the hydraulic actuator. In the case of the manual valve being shifted to a low speed position, then from the low speed port of the manual valve, the line pressure is applied to a modulator valve where the line pressure is modulated, and applied to a back pressure port of a primary regulator valve to boost the line pressure up to certain volume.
    • 用于四轮驱动车辆的动力传递装置包括差速运动限制装置,用于限制由湿式摩擦离合器和液压致动器构成的中心差速装置的差速运动。 在运行状态下,摩擦离合器通过一定的接合力接合,考虑到道路的摩擦系数,离合器与一些滑移接合,使前轮和后轮的扭矩分布均匀(50:50),扭矩从 中心差速装置到前轮和后轮。 管路压力通过调节阀施加到液压执行机构。 在正常运行状态下,调节阀将线路压力降低到一定比例,减压被施加到液压执行机构。 在手动阀门被移动到R档位或低档位置的情况下,调节阀被切换以将管路压力直接施加到液压执行器。 在手动阀被转移到低速位置的情况下,然后从手动阀的低速端口将管路压力施加到调节阀,在调节阀处调节管路压力,并将其施加到 一个主要调节阀,以将管线压力提升到一定的体积。
    • 6. 发明授权
    • Pressure regulating valve in a hydraulic control system for an automatic
transmission
    • 用于自动变速器的液压控制系统的调压阀
    • US5868167A
    • 1999-02-09
    • US774549
    • 1996-12-30
    • Nobuaki MikiTakenori KanoHaruki Yamamoto
    • Nobuaki MikiTakenori KanoHaruki Yamamoto
    • F15B13/043F16H61/02F16K11/07G05D16/10G05D16/20F15B13/044
    • F16H61/0251G05D16/2013F16H2061/0258Y10T137/86622
    • A pressure regulating valve in a hydraulic control system for an automatic transmission according including a pressure regulating unit having a spool made slidable in a valve sleeve 10. An electromagnetic unit for causing a hollow core (or stator) is provided to attract a plunger (or movable element) arranged on a push rod communicating with the spool. The spool is moved by a spool moving mechanism in a direction to increase the flow from an input port to an output port to thereby raise an output pressure from an output port when the output pressure is lowered by a leakage. The spool position is controlled to control the output pressure in accordance with a balance among a spring force of spring means fitted in the valve sleeve, a feedback force resulting from the output pressure, and an electromagnetic attraction to be established in response to an electric signal provided to the electromagnetic unit having the hollow core and the plunger. In another embodiment, an input pressure feedback port is provided in the valve sleeve, and spool position control is additionally dependent upon an input pressure feedback force provided to the input pressure feedback port.
    • 一种用于自动变速器的液压控制系统中的压力调节阀,包括具有可在阀套10中滑动的阀芯的压力调节单元。提供用于引起中空芯(或定子)的电磁单元以吸引柱塞(或 可动元件),其布置在与所述线轴连通的推杆上。 阀芯通过阀芯移动机构沿着增加从输入端口到输出端口的流动的方向移动,从而当输出压力由于泄漏而降低时从输出端口提高输出压力。 控制阀芯位置以根据装配在阀套中的弹簧装置的弹簧力,由输出压力产生的反馈力与响应于电信号而建立的电磁吸力之间的平衡来控制输出压力 提供给具有中空芯和柱塞的电磁单元。 在另一个实施例中,输入压力反馈端口设置在阀套管中,并且阀芯位置控制另外取决于提供给输入压力反馈端口的输入压力反馈力。