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    • 3. 发明授权
    • Pressure regulator valve with boost feature
    • 带增压功能的调压阀
    • US07438660B2
    • 2008-10-21
    • US11333152
    • 2006-01-17
    • Charles F. LongJeffrey J. ColePhillip F. McCauley
    • Charles F. LongJeffrey J. ColePhillip F. McCauley
    • F16H63/04
    • F16H61/0021F16H2061/0253F16K11/07Y10T137/7782
    • A pressure regulator valve is provided having a valve spool slidably disposed within a stepped bore defined by a valve body. A first pressure responsive surface area is defined on the valve spool and is subject to pressurized fluid from a main pressure source. A second pressure responsive surface area is defined on the valve spool and is subject to pressurized fluid from a control source. Additionally, a third pressure responsive surface area is defined on the valve spool and is selectively subject to pressurized fluid from one of the main pressure source and the control source. A sleeve is slidably disposed within the stepped bore, the sleeve being operable to selectively distribute pressurized fluid from one of the main pressure source and the control source to the third pressure responsive surface area to effect a change in pressure gain of the pressure regulator valve.
    • 提供了一种压力调节阀,其具有可滑动地设置在由阀体限定的阶梯孔内的阀芯。 第一压力响应表面区域限定在阀芯上,并且受到来自主压力源的加压流体的影响。 第二压力响应表面积被限定在阀芯上并且受到来自控制源的加压流体的影响。 此外,第三压力响应表面区域被限定在阀芯上,并且选择性地经受来自主压力源和控制源中的一个的加压流体。 套筒可滑动地设置在阶梯孔内,套筒可操作以选择性地将加压流体从主压力源和控制源之一分配到第三压力响应表面区域,以实现压力调节阀的压力增益的变化。
    • 10. 发明授权
    • Capacity control for nested clutch automatic transmission
    • 嵌套离合器自动变速器的容量控制
    • US5352161A
    • 1994-10-04
    • US47587
    • 1993-04-13
    • Joel E. MowattCharles F. LongPhillip F. McCauley
    • Joel E. MowattCharles F. LongPhillip F. McCauley
    • F16H61/00F16H61/06F16H61/08F16D25/11
    • F16H61/061F16H2061/0087F16H61/08
    • A method and apparatus for increased clutch capacity in an automatic vehicle transmission having a nested clutch pair. An electronic control unit controls a pulse width modulator which applies control signals to the actuating solenoid valves of the nested pair of clutches. The electronic control unit operates to reduce the pressure on an engaged clutch of the pair during the period of time that the other clutch is being actuated during the shift. Once the shift is completed, the operating pressure on the previously engaged clutch is restored to a normal operating pressure. Provisions are also made for assuring that the period of time required for the shift is maintained between threshold limits or within a window of time. This adaptive feature precludes excessively short or long shifts.
    • 一种用于在具有嵌套离合器对的自动车辆变速器中提高离合器容量的方法和装置。 电子控制单元控制一个脉冲宽度调制器,该调制器向嵌套的一对离合器的致动电磁阀施加控制信号。 电子控制单元操作以在移动期间在另一个离合器被致动的时间段期间减小该对的接合离合器的压力。 一旦换挡完成,先前接合的离合器的操作压力恢复到正常的操作压力。 还规定了确保班次所需的时间段保持在临界极限之间或在时间窗口内。 这种适应性特征排除了过度短暂或长时间的变化。