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    • 3. 发明授权
    • VORRICHTUNG ZUR DYNAMISCHEN REGELUNG EINES WASSERFLUSSES
    • EP1810103B1
    • 2009-03-25
    • EP05857341.1
    • 2005-11-09
    • MASCO CORPORATION OF INDIANA
    • KNAPP, Alfons
    • G05D7/01G05D16/10F16K47/00
    • G05D7/0133Y10T137/7837Y10T137/7847Y10T137/87555
    • The invention relates to a device for dynamically controlling a water flow, comprising the following items in a body: a feed chamber, a discharge chamber, and a piston which is arranged between the feed chamber and the discharge chamber and which is placed on one side of the pressure of the feed chamber and on the other side of the pressure of the discharge chamber. The piston can be displaced from a first position, which is offset towards the feed chamber and wherein the piston narrows the flow between the feed chamber and the discharge chamber, and a second position, which is offset towards the discharge chamber and wherein the piston does not narrow the flow between the feed chamber and the discharge chamber, and a return spring which impinges upon the piston in the first position. According to the invention, said piston passes through a passage which extends from the feed chamber to the discharge chamber and a flow limiting means is provided in order limit the flow flowing through the passage. The return spring is dimensioned in such a manner that the effect thereof corresponds, essentially, to the force which inclines the piston to be displaced from the first position into the second position if the maximum flow exiting the flow limiting means is withdrawn. Preferably, the piston is secured in a displaceable manner with the first end in the feed chamber and with the second end thereof in a cylinder which is secured to the body of the device, is connected to the discharge chamber and is oriented in relation to the discharge chamber, and the flow limiting means is secured to the fixed cylinder.
    • 7. 发明公开
    • ABSCHNEIDVENTIL FÜR HILSFSKRAFTLENKUNGEN, INSBESONDERE FÜR KRAFTFAHRZEUGE
    • ABSCHNEIDVENTILFÜRHILSFSKRAFTLENKUNGEN,INSBESONDEREFÜRKRAFTFAHRZEUGE
    • EP1147041A1
    • 2001-10-24
    • EP00989874.3
    • 2000-11-23
    • ZF Lenksysteme GmbH
    • FAHRIAN, MatthiasSCHÖFFEL, Jörgen
    • B62D5/06
    • B62D6/02B62D5/061Y10T137/87555Y10T137/87861
    • A cut-off valve for power steering systems, especially for automobiles, contains a source of a pressure means (1) and a container (3), and is used for limiting a pressure in at least one pressure chamber. The cut-off valve also contains a closing body (6) which can be adjusted against the force of a spring (7) and a fixed throttling point (15) which is located in a connecting line between the pressure chamber that is subjected to a first pressure and a pressure chamber that is subjected to a second pressure. The cross-section of the throttling point (15) can be regulated without being disassembled from the outside. By altering the cross-section of the throttle point (15), it is possible to reduce the width of the tolerance zone or the width of the hysteresis of the valve characteristics to approximately half of the original size.
    • 用于动力转向系统的截止阀,特别是用于汽车的截止阀包含压力装置(1)和容器(3)的源,并用于限制至少一个压力室中的压力。 截止阀还包括可以克服弹簧(7)的力调节的关闭体(6)和固定节流点(15),所述节流点位于受到压力腔的压力腔 第一压力和经受第二压力的压力室。 节流点(15)的横截面可以被调节而不从外部拆卸。 通过改变节流点(15)的横截面,可以将公差区的宽度或阀特性的滞后宽度减小到原始尺寸的大约一半。