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PRESSURE COMPENSATED FLOW AMPLIFYING POPPET VALVE

机译:压力补偿式流量放大型自动上阀

摘要

Flow amplifying poppet valves can be used in hydraulic circuits requiring a low loss when the circuit is in charge of holding position. Pressure compensation flow amplification poppet valves known was not total success and accordingly outflow varies slightly fluctuating pressure drops in poppet. The poppet valve (10) to flow amplification and pressure compensation described uses a pressure compensation valve (54) and a compensation opening (53) disposed in a flow path compensation (46) parallel to a valve device (44) for regulating fluid flow through a passageway (47) flow control. The fluid flow in the flow path compensation (46) is limited by the orifice (53) at a rate substantially equal to the amount of fluid that can flow through a flow control slot (37 ) in an element (12) valve, when the latter is in the closed position. The addition of the flow path compensation (46) and the compensation valve (54) considerably increases the capacity of the poppet valve pressure compensated, so that the fluid flow through said valve remains substantially constant for a given position of the valve device (44), regardless of fluctuating load conditions.
机译:流量放大的提升阀可用于液压回路,当该回路负责保持位置时,该回路的损失应很小。已知的压力补偿流量放大提升阀不能完全成功,因此,流出量会略微波动,从而使提升阀中的压降有所波动。所描述的用于流量放大和压力补偿的提升阀(10)使用压力补偿阀(54)和平行于阀装置(44)布置在流路补偿装置(46)中的补偿开口(53),以调节流过的阀装置通道(47)的流量控制。当流路补偿装置(46)中的流体以一定的速率受节流孔(53)的限制时,流率可通过元件(12)阀中的流量控制槽(37)流动。后者处于关闭位置。附加的流路补偿(46)和补偿阀(54)大大提高了提升阀的压力补偿能力,从而使通过所述阀的流体流量在阀装置(44)的给定位置基本保持恒定,无论负载情况如何变化。

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