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    • 6. 发明申请
    • Method for controlling an expansion valve and expansion valve, in particular for vehicle air-conditioning systems operated with CO2 as the refrigerant
    • 用于控制膨胀阀和膨胀阀的方法,特别是用于以CO 2作为制冷剂运行的车辆空调系统
    • US20070295016A1
    • 2007-12-27
    • US11800445
    • 2007-05-05
    • Jean-Jacques Robin
    • Jean-Jacques Robin
    • F25B41/04
    • F25B41/062F25B9/008F25B2309/061F25B2341/063F25B2400/0411F25B2500/07
    • The invention relates to a method for controlling an expansion valve, in particular for vehicle air-conditioning systems operated with CO2 as the refrigerant, with a valve housing which has a feed opening and a removal opening, with a valve-closing member which closes a valve seat of a passage opening arranged between the feed and removal openings, and with a resetting device which acts in the closing direction of the valve-closing member, an adjusting element, which is assigned to the valve-closing member, on the low-pressure side being activated via a predetermined threshold value as the low pressure rises or as the temperature on the low-pressure side rises and actuates at least one actuating element by means of which a closing force of the resetting device acting on the valve-closing member is reduced such that a passage opening is enlarged or a passage of a bypass valve arranged on the low-pressure side, which passage is arranged parallel to the passage opening, is opened.
    • 本发明涉及一种用于控制膨胀阀的方法,特别是用作为制冷剂的CO 2操作的车辆空调系统,其具有具有进料口和去除开口的阀壳体, 关闭构件,其封闭布置在进料和除去开口之间的通道开口的阀座,以及沿关闭构件的关闭方向作用的复位装置,调节元件,其被分配给阀 当低压侧上升时,低压侧的低压侧通过预定的阈值被激活,或当低压侧的温度升高时致动至少一个致动元件,通过该致动元件,复位的闭合力 作用在阀关闭构件上的装置减小,使得通道开口扩大,或者设置在与通道开口平行的通道的低压侧上的旁通阀的通道是开放的 ed。