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    • 22. 发明公开
    • Fan drive having pressure control (fluid) of a wet friction fan drive
    • Lüfterantriebmit Drucksteuerung einerFlüssigkeitsreibungskupplung
    • EP1710412A1
    • 2006-10-11
    • EP05257655.0
    • 2005-12-14
    • BorgWarner Inc.
    • Ignatovich, James E.Malott, Theodore A.Pickelman, Dale
    • F01P7/08
    • F16D43/284F01P5/02F01P7/046F01P7/08F16D2048/0221
    • A hydraulically controlled fan drive system (12) having a method of engagement includes a housing assembly (20) containing a hydraulic fluid (48) and an engaging circuit (36). The engaging circuit (36) includes a pitot tube (152) coupled within the housing assembly (20) that receives at least a portion of the hydraulic fluid (48). An engaging circuit (36) engages the housing assembly (20) to a fan shaft (44) in response to supply of the hydraulic fluid (48) from the pitot tube (152). An electrical control circuit (40) having a relief valve assembly (225) coupled to a main controller (176) is used to control the fluid pressure within the pitot tube (152) that controls the engagement of the housing assembly (20).
    • 具有接合方法的液压控制的风扇驱动系统(12)包括容纳液压流体(48)和接合回路(36)的壳体组件(20)。 接合电路(36)包括耦合在壳体组件(20)内的皮托管(152),其容纳至少一部分液压流体(48)。 响应于来自皮托管(152)的液压流体(48)的供应,接合回路(36)将壳体组件(20)接合到风扇轴(44)。 具有联接到主控制器(176)的安全阀组件(225)的电气控制电路(40)用于控制皮托管(152)内控制壳体组件(20)接合的流体压力。
    • 29. 发明公开
    • Trim valve for a fluid operated friction torque transmitting device
    • AbbichventilfürdruckmittelbetätigtesReibmoment-Übertragungsgerät
    • EP1098101A2
    • 2001-05-09
    • EP00120393.4
    • 2000-09-18
    • General Motors Corporation
    • Hall, Arthur, III
    • F16D48/06
    • G05D16/2013F16D48/066F16D2048/0221F16D2500/1026F16D2500/1045F16D2500/70294F16D2500/70406F16D2500/7042F16H61/0251F16H61/061F16H2061/0253Y10T137/86614Y10T137/87209
    • A trim valve (28) controls the pressure rise and pressure gain in a torque transmitter (12). The trim valve controls the distribution of a system pressure to the torque transmitter in a controlled manner such that the apply pressure of the torque transmitter has a desired gain rate. A spool valve (38) controls the admission of system pressure through a sleeve valve (36) for distribution to the torque transmitter in response to a control pressure. The trim valve (28) has bias spring elements that control a sleeve member of the trim valve in response to the apply pressure at the torque transmitter. The rate at which the apply pressure rises in relation to the control pressure is established by the bias spring elements (40,42) which can be a single variable rate member or a plurality of parallel members. If parallel members are used, they are positioned to be sequentially engaged by the sleeve valve (36) during linear movement in response to a change in the apply pressure.
    • 调节阀(28)控制扭矩传感器(12)中的压力升高和压力增益。 调节阀以受控的方式控制系统压力对扭矩变送器的分配,使得扭矩变送器的施加压力具有期望的增益率。 滑阀(38)通过套筒阀(36)控制系统压力的准入,以响应于控制压力分配到扭矩传递器。 调节阀(28)具有偏置弹簧元件,其响应于扭矩传递器处的施加压力来控制调节阀的套筒构件。 施加压力相对于控制压力升高的速率由可以是单个可变速率构件或多个平行构件的偏置弹簧元件(40,42)确定。 如果使用平行构件,则它们被定位成响应于施加压力的变化而在线性运动期间由套筒阀(36)顺序地接合。