The digital flow rate valve regulates digitally system flow rate to implement speed regulation in hydraulic system.
发数字式流量阀采用数字控制方式，调节系统流量以达到液压系统调整目的。
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 stepless speed of press hydraulic system with rapidly high flow is a difficult and challenging problem.
液压机快速大流量液压系统的无级调速是一个有待解决的技术问题。
The hydraulic machinery test stand in multiphase flow and its automatic measure-control system is set up in this paper.
本研究建立了水力机械多相流动试验台及其自动测控系统。
This paper studies the dynamic characteristics of Electro hydraulic Position Servo System, and proposes a method of equivalent flow feedback to realize serial control.
针对单回路电液位置伺服系统的动态特性，提出了一种等效流量反馈的控制方法，从而实现了串级控制。
The bladder accumulator is used in the hydraulic system for balancing the flow of the system, stabilizing the pressure of system or recovering the energy in the system.
皮囊式蓄能器在液压系统中用于均衡系统的流量，稳定系统的压力或回收系统的能量。
This paper has analyzed the relationship of flow, pressure pulsation and noise in hydraulic system, and has inquired into generation and propagation of fluid noise in the system.
本文分析了液压系统流量、压力脉动与噪声的关系，对系统的流体噪声产生与传播进行了一些探讨；
By analyzing the impact phenomenon of hydraulic support's hydraulic system, this research finds out the cause of hydraulic impact lies in the discontinuity of hydraulic flow velocity.
通过对液压支架液压系统的冲击现象的分析，找出引起液压冲击的原因是液压流速的突变。
The only power source is a hydraulic system to provide generator with required hydraulic fluid flow at demanded pressure.
驱动它运转的唯一动力是所需要的液压流量及压力。
This paper deals with the physical characteristics of the transient of flow parameters in hydraulic system when fluid flows through pipe junction with different diameter.
本文分析研究了液压系统中液流在连接不同直径管道的装置处，流动参数发生瞬变的物理特征。
The pneumatic-hydraulic composite transmission system with two-step output liquid pressure automatic switchover from low pressure and mass flow to high pressure and little flow.
具有双级液体压力输出的气—液复合传动系统，能实现低压大流量到高压小流量的自动切换。
The three dimensional flow field of the step cylinder in Hydraulic Control Rod Driving System (HCRDS) is calculated and analyzed with the computational fluid (dynamics) program CFX5 in detail.
应用计算流体力学程序CFX5对水力驱动控制棒步进缸内部的三维流场进行了计算和分析。
Use this solution to the premise of the hydraulic imbalance is: accurate calculation of water system resistance, heat or air-conditioned terminal flow should not change.
采用这种办法解决水力失调的前提是：水系统阻力计算准确、热力或空调末端流量不能发生变化。
This type of flow sensor is widely needed in the flow control systems and has been successfully used in the home-produced prototype hydraulic elevator with flow electrical feedback control system.
作者研制的动态流量计是国内流量控制系统中所缺乏和急需的器件，已成功地应用在国产液压电梯流量反馈控制样机上。
Describes its working principle, process flow and structural characteristics, especially the working principle of its hydraulic control system that is the core in machine reforming.
介绍了其熔压原理、工艺流程及结构特点，并对设备改造的核心部分液压控制系统的原理进行了详细的说明。
Because the hydraulic parameters of each component of the network are determined by a nonlinear flow formula, the solution to this system can be got by the Nexvton Raphson method.
由于管网各管段的水力参数均系非线性方程决定，因此，系统工况可采用牛顿法求解。
The transformed hydraulic system has abundant flow capacity, stable pressure, swift motion and low failure rate and it is convenient to adjust and maintain.
改造后的液压系统流量充分、压力稳定、动作迅速，且调整和维修保养方便，故障率低。
A hydraulic pump is considered as a pressure and flow ripple source for the hydraulic system, and its mathematical model in frequency domain is studied.
本文对液压系统中的流量压力脉动源一液压泵的频域数学模型作了研究。
A integration collection system of hydraulic engineering system is developed in order to check on line the parameters such as velocity, pressure, flow-detecting and so on in hydraulic facilities.
为了对液压设备中的速率、压力、流量等参数进行在线检测，我们自行设计了一套液压工程综合采集系统。
In hydraulic transmission system, the pump's flow pulse frequency and the pipes base frequency affects each other, if the valves shut suddenly, resonance oscillation may take place.
液压系统中阀门(换向阀等)突然关闭时，液压泵的流量脉动频率和管道的基本频率相互作用，可能发生谐振。
This method is applied in the pump liquid control system by hydraulic coupling, the experimental results is satisfactory when the flow disturbance varies far.
该方法应用于渣浆泵调速型液力耦合器调速液位控制系统，在干扰流量变化很大的情况下，均获得了满意的控制效果。
The topics mainly include the design of hydraulic system of drum roll mill and information flow control device.
本课题的内容主要包括筒辊磨液压系统和料流控制装置设计。
Based on power flow of hydraulic system for hydraulic hybrid vehicle, evaluating indexes are provided for the design of hydraulic system.
基于液驱混合动力车辆液压系统的功率流，提出了液压系统设计所需要使用的评价指标。
The utility model discloses a pneumatic control multi-way directional valve applied to a remote pneumatic-control hydraulic system with the coexistence of large flow rate and small flow rate.
一种应用于远程气动控制液压系统的大、小流量并存的多气控换向阀。
The large undulation of pressure at the large-scale hydraulic pump station is usually caused by the pulsating of flow. It's one of essential causes to produce noise in the hydraulic system.
大型液压泵站由于流量脉动往往引起大的压力波动，这是造成液压系统噪声的主要原因之一。
They are suitable in the hydraulic system with high pressure, high flow rate and low pressure drop.
该阀非常适合用于高压大流量，压力损失小的系统。
The flow force is the important factor for designing and analyzing both the control valve and the hydraulic system.
液动力是设计、分析液压控制阀及液压系统考虑的重要因素之一。
The reconstruction scheme of electric control system of hydraulic tester for seamless steel tube in TPCO was introduced. The process flow and programming keys for hydraulic tester are explained.
介绍了对天津钢管集团有限公司使用的美国无缝钢管水压试验机的电气控制系统改造方案，并对该水压机的工艺流程和编程的要点进行了说明。
The reconstruction scheme of electric control system of hydraulic tester for seamless steel tube in TPCO was introduced. The process flow and programming keys for hydraulic tester are explained.
介绍了对天津钢管集团有限公司使用的美国无缝钢管水压试验机的电气控制系统改造方案，并对该水压机的工艺流程和编程的要点进行了说明。
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