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    • 7. 发明公开
    • Coupling device and improved method of controlling torque transmission
    • Kupplungsandordnung und verbesserte Methode zur Steuerung desÜbertragungsmoments
    • EP1574737A1
    • 2005-09-14
    • EP05004946.9
    • 2005-03-07
    • Eaton Corporation
    • Babin, Christopher J.
    • F16D43/284F16D48/02
    • F16D48/02F16D43/284F16D2048/0221F16H48/08F16H48/22F16H48/30F16H48/32F16H48/34F16H2048/204F16H2048/346F16H2048/382F16H2200/2071Y10T137/7928
    • A method of controlling a pressure control valve assembly (69) to control a control pressure (43,71) in a system (11) including a source (47,49) of pressurized fluid. The control valve assembly is operable to vary the control pressure in response to variations in an electrical input signal (87) to an electromagnetic coil (81). The control valve assembly defines an inlet (77) in communication with the control pressure, an outlet (93) in communication with the low pressure, and a valve seat (89) disposed intermediate the inlet (77) and the outlet (93). A poppet valve member (91) is biased toward the valve seat by a biasing means including an armature (95), the biasing force being generally proportional to the input signal to the coil. The method comprises the steps of selecting a predetermined, minimum pressure for the control pressure corresponding to a minimum condition of the system. Next is selecting the biasing means to apply a biasing force to the poppet valve (91) corresponding to a fluid pressure less than the predetermined minimum pressure for the control pressure. The last step is selecting the electrical input signal (87) to correspond to the desired control pressure, an increasing input signal resulting in an increasing biasing force on the poppet valve member (91), but with no substantial movement thereof.
    • 一种控制压力控制阀组件(69)以控制包括加压流体源(47,49)的系统(11)中的控制压力(43,41)的方法。 控制阀组件可操作以响应于到电磁线圈(81)的电输入信号(87)的变化来改变控制压力。 控制阀组件限定与控制压力相连的入口(77),与低压连通的出口(93)和设置在入口(77)和出口(93)之间的阀座(89)。 提升阀构件(91)通过包括电枢(95)的偏置装置朝向阀座偏置,该偏压力通常与线圈的输入信号成比例。 该方法包括以下步骤:为与系统的最小状况相对应的控制压力选择预定的最小压力。 接下来,选择偏置装置,以对应于小于用于控制压力的预定最小压力的流体压力对提升阀(91)施加偏置力。 最后一步是选择电气输入信号(87)以对应于期望的控制压力,增加的输入信号导致提升阀构件(91)上的增加的偏压力,但是没有实质的移动。