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    • 1. 发明授权
    • Valve arrangement for controlling the flow rate of a gas
    • 用于控制气体流量的阀装置
    • US06729343B2
    • 2004-05-04
    • US10100567
    • 2002-03-18
    • Bernhard LudwigTilmann von BlumenthalRalf Lorenzen
    • Bernhard LudwigTilmann von BlumenthalRalf Lorenzen
    • G05D706
    • G05D7/0635Y10T137/0396Y10T137/7759
    • A valve arrangement is provided with a very short minimum valve adjustment time. This is especially suitable for use in respirators or anesthesia apparatuses for metering gases for respirated patients. It has a valve (3, 4) with a seat (3) and with a valve closing part (4) for adjusting the gas flow rate, an inflow line (1) and a discharge line (2) as well as a drive system (5) for controlling the position of the valve closing part (4) relative to the seat (3). A gas flow rate measuring transducer (8) and a control unit (9) are provided for controlling the drive system (5) by means of a control signal. A velocity measuring transducer (7) for measuring the velocity of the valve closing means (4) relative to the seat (3) is present to provide an output signal used to calculate the control signal (40) for the drive system (5).
    • 阀装置具有非常短的最小阀调节时间。 这特别适用于呼吸器或麻醉设备,用于计量呼吸患者的气体。 它具有带阀座(3)的阀(3,4)和用于调节气体流量的阀关闭部分(4),流入管线(1)和排出管线(2)以及驱动系统 (5),用于控制所述阀关闭部(4)相对于所述座(3)的位置。 设置有气体流量测量传感器(8)和控制单元(9),用于通过控制信号控制驱动系统(5)。 存在用于测量关闭装置(4)相对于座椅(3)的速度的速度测量传感器(7),以提供用于计算驱动系统(5)的控制信号(40)的输出信号。