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当主泵的液流从节流元件的进油节流孔喷流,其流束被辅助泵的径向控制液流所包围并处于其液动力作用下时,径向辅助泵控制液流就对主泵液流起着“节流液颈”的作用,使两路液流从节流元件出流的特性发生变化,节流元件进出口的压力降,成了受辅助液流流动特性所控制的参数。作者基于这种理论,对双泵稳流阀的调节机能作了分析,提出有关计算公式,并进行国内外实机参数的对比计算,计算结果与实机情况吻合。
When the flow of the main pump jets from the throttle orifice of the throttle element and its stream is surrounded by the radial control flow of the auxiliary pump and is under its hydrodynamic force, the radial auxiliary pump controls the flow of liquid The main pump fluid flow plays a role of “throttle neck”, so that the characteristics of two fluid flows from the throttling element change. The pressure drop at the inlet and outlet of the throttling element becomes controlled by the auxiliary fluid flow characteristics The parameters. Based on this theory, the author analyzes the regulation function of the dual-pump steady-flow valve, puts forward the relevant calculation formula, and compares the actual parameters at home and abroad. The calculation results are in good agreement with those of the real machine.