The optimal hydraulic design can effectively improve the outlet flow pattern of suction box to ensure better flow conditions for pump and raise the efficiency of pumping system substantially.
进水流道水力设计优化可有效地改善进水流道出口流态，确保水泵有良好的进水条件，大幅度提高水泵装置效率。
The experiment shows that by changing the velocity coefficient , the separation of boundary layer on pump vane can be controlled, and the performance of pump is improved and its hydraulic efficiency.
实验证明通过改变叶片型线参数方程中的速度系数的取值，可以控制边界层的分离，进而改善泵的性能，提高其水力效率。
The electric consumption is based on an overall pump efficiency of 40 % (Hydraulic plus Electric).
耗电量以40%的总泵效率（液压泵加电动泵）为基础。
The basic mathematic model of the output of hydraulic piston concrete pump was described in terms of its working principle, the influence on real-time pumping efficiency was analyzed.
首先根据液压活塞式混凝土泵的工作原理，阐述了混凝土泵排量的基本数学模型，指出模型中的实时泵送效率是解决问题的关键。
The development application on the hydraulic pump has improved the automation and intelligent level and test efficiency and precision of the experiment course based on virtual instrument.
虚拟仪器在液压泵性能试验上的开发应用，提高了试验过程的自动化和智能化水平以及测试效率和精度。
This paper not only discusses all kinds of the loading forms and system efficiency of the life test bed for hydraulic elements, such as oil pump, oil motor and oil crock.
本文对油泵、油马达、油缸寿命试验台的各种加载形式及系统效率进行了分析，并导出了各种加载形式系统效率的一般表达式。
The results are significant for decreasing hydraulic loss of discharge passage, pump assembly optimum design and increasing pump assembly efficiency.
成果对减小出水流道水力损失，实现泵装置优化设计，提高泵装置效率有重大意义。
The principle, method, design process and change result to enlarge capacity of maximum efficiency running point and improve hydraulic performance of double suction pump were presented.
论述了双吸离心泵增大高效点流量、提高水力性能的原理、方法、实施过程及改造结果。
From the simulation results, it is clear that the power matching system using double-pump can improve efficiency of the CVT hydraulic system greatly.
计算表明，采用的双联泵功率匹配系统能有效提高CVT液压系统效率。
The hydraulic jet pump can reduce the producing cost due to its long run-life, few inspection operation, high production efficiency, less power consumption and less usage of power liquid.
射流泵运行周期长、检泵作业量少、生产效率高、耗电量小，动力液用量少，可使采油成本降低。
Also the manufacturing precision of water hydraulic gear pump, especially gear surface and side flank, is required in order to improve its volume efficiency.
需要进一步提高水压齿轮泵加工精度，特别是侧板以及齿轮端面的平面度、表面粗糙度以提高水压齿轮泵的性能。
Also the manufacturing precision of water hydraulic gear pump, especially gear surface and side flank, is required in order to improve its volume efficiency.
需要进一步提高水压齿轮泵加工精度，特别是侧板以及齿轮端面的平面度、表面粗糙度以提高水压齿轮泵的性能。
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