Analyses the effects of variable flow operation of primary pump water systems based on the temperature difference control method on the operation of air conditioning systems.
分析了一级泵水系统采用温差控制法实现变流量运行对空调系统运行的影响。
Analyses and confirms the practicability of variable water flow operation for the primary pump system, and illustrates its obvious energy saving effects.
分析了一级泵系统实现变流量运行的可行性，并通过实例说明了其显著的节能效果。
If suitable pump and throttle equipment are applied, we can realize the variable flow cooling for main Marine diesel engine.
并且在三通调节阀调节的过程中，主管路流量是变化的，只要采用合适的泵和节流装置，可以实现主柴油机的变流量冷却。
In order to compensate for the area deviation of differential cylinder and change the output flow of the pump, a program of parallel-type of three-window of variable axial piston pump was proposed.
为了补偿差动缸面积差和改变泵的输出流量，提出采用并联型三配流窗口的变量轴向柱塞泵方案。
Variable-speed control we already know, at a certain speed axial flow pump are working under, and to obtain the corresponding flow, lift, power and efficiency.
变速调节我们已经知道，轴流泵是在一定转速下工作的，而且获得相应的流量、扬程、功率和效率等。
Now the novel linear motor of bidirectional pulse variable-frequency control is applied to drive the flow control pump successfully.
目前，设计的双向脉冲变频控制的直线电机已成功应用于计量泵的驱动器中。
A general scheme of a high pressure, variable flow and variable pressure aircraft intelligent hydraulic pump system is proposed in this paper.
提出了一种高压变流量变压力机载智能泵源系统的总体方案。
The constant-pressure and variable-flow adjustment of inverter-drive pump is widely used for energy saving, but the method has still additional hydraulic loss.
水泵变频调速恒压交流供水是目前应用最广泛的节能供水方式，其能耗较低，但仍存在额外的水力损耗；
To this problem, the variable-frequency speed regulation and flow regulation split-ranging coordinated control of the centrifugal pump for energy saving is given.
离心泵的变频调速是目前广泛采用的流量调节方法，高效节能是其最大优点，但是当流量降低时，可能造成压头过低而影响后续流程。
Variable Angle adjustment from the structure, the axial flow pump impeller with enormous wheels, easy to install adjustable Angle blade.
变角调节从构造来看，轴流泵叶轮具有巨大的轮毂，便于安装可调角度的叶片。
When the blade installation Angle changes, the leaves of water lift is changed, thus changing the water pump job performance, this is the axial flow pump of the variable Angle adjustment.
当叶片安装角度改变后，叶片对水的升力也就改变了，从而改变了水泵的工作性能，这就是轴流泵的变角调节。
By the new model, a variable displacement hydraulic pump is simulated by the ordinary hydraulic component with hydraulic resistance, abrupt pressure change and invariable flow.
该模型将变量液压泵等效为液阻、压力突变、恒流源构成的一般液压元件。
Pretty flow pressure characteristics are being realized in the variable displacement pump with valve adjuster. But more violent flow pulse was proved by experiment at the range of higher pressure.
阀式变量泵具有理想的静态流量压力特性，实验发现在高压变量区具有较强的流量脉动甚至脉冲现象。
So, the selection of variable pump pressure limit is appropriate, because this type of pump flow with the system pressure varies.
所以选择限压式变量泵为宜，因为这种类型的泵的流量随系统压力的变化而变化。
LC Gradient System VLIncludes gradient pump (max. pressure 400 bar) with integrated degasser, manual injector and variable wavelength detector with standard flow cell.
1220高效液相色谱仪（二元梯度泵），带手动进样器、紫外检测器，标准流通池。
When the pressure decreases, variable pump will detect this change and automatically increase the angle to augment flow capacity, which causes the grab back to normal working condition.
一旦工作压力降低，泵感应到压差增大，会自动增大斜盘角度增大排量，抓斗又处于工作状态。
When the pressure decreases, variable pump will detect this change and automatically increase the angle to augment flow capacity, which causes the grab back to normal working condition.
一旦工作压力降低，泵感应到压差增大，会自动增大斜盘角度增大排量，抓斗又处于工作状态。
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