This paper analyzed the variable pump system of Komatus PC-6 excavator. The method for testing and adjusting of LS valve and PC valve was introduced.
分析了小松pc - 6型挖掘机的油泵变量系统，给出了LS阀和PC阀的参数调整方法。
The proportional variable pump system made up with electrohydraulic proportional reversing valve and axial variable pump is a new kind of hydraulic dynamic structure.
由电液比例换向阀和轴向变量泵组成的比例变量泵系统是一种新型液压动力机构。
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。
In the walking beams velocity electro-hydraulic control system, proportional variable pump is the key components.
在步进梁速度电液比例控制系统中，比例变量泵是关键组成部分。
In this paper, the principle of variable speed pump control hydraulic differential cylinder is designed, and the simulation model of system is built, and the simulation research is carried out.
给出了采用变转速泵控闭式回路控制差动缸的原理，建立了该系统的数学模型，进行了计算机数字仿真研究。
From the viewpoint of energy saving, the application of variable frequency technology in the secondary pump system was expounded and the energy consumption of variable frequency pump was analyzed.
从节能的角度，阐述了变频技术在二次泵变水量系统中的应用，对变频水泵的能耗进行了分析。
This paper applies load-sensing variable pump to the hydraulic system of loader considering the matching of pump and the load.
本文从液压泵与负载匹配的角度出发，将负载敏感变量泵应用到装载机工作装置液压系统的设计中。
The results show that there is great energy saving potential for this novel variable capacity air source heat pump system and it can be used in more cold districts.
模拟结果显示了该新型变浓度容量调节系统具有较大的节能潜力，表明该变浓度热泵系统能在更寒冷的地区得到应用。
The hydraulic system with variable displacement pump-constant displacement motor has the function of overload protection.
由变量泵-定量马达组成的液压系统具有超载保护，防止电缆被强行拉断的功能。
The tests results show that the controller is the effective control method for the variable pump & valve controlled system.
试验研究结果表明，前馈自适应控制是实现变量泵源阀控系统高精度跟踪控制的有效方法。
The model of hydraulic motor pump variable speed control system is built.
同时建立了该液压电机泵变速控制系统的数学模型。
In the light of the pickup current of a submersible electric pump being too large when started at full pressure, a new variable frequency control system is developed.
针对电动潜油泵工频全压启动时存在启动电流过大等诸多问题，开发出新型电动潜油泵变频控制系统。
Variable displacement servo pump in the small variable phase, likely to cause the low efficiency of the system, heat large shortcoming.
伺服变量泵在小排量变量阶段，容易造成系统效率低、发热量大等缺点。
Simulation analysis was carried out for the variable speed pump-control-motor hydraulic system. Mathematic models of inverter, asynchronous motor, fixed pump and load were set up.
本文对变转速泵控马达液压系统进行了仿真分析，建立了系统中变频器、异步电动机、定量泵、马达以及负载的数学模型。
The configuration and variable frequency adjusting speed of water circulation pump in city heat-supply system are introduced, and the effects of energy saving are analyzed.
对城市供热系统中循环水泵的配置及变频调速进行了介绍，分析了其节能效果。
Points for attention in the design and application of variable frequency and speed pump system have been proposed as well.
指出了变频调速泵送系统在设计和应用中的注意事项。
The high voltage variable frequency transformation of power plant's pump system of condensation water pump, condensation water booster pump is described briefly.
对发电厂的凝泵、凝升泵的高压变频改造进行了简要叙述，并对经济性试验的数据进行了定量分析。
Additionally, the coordinate principle of variable displacement pump with constant power control and load-sensing control system is demonstrated, and establish the constant power control model.
针对液压泵恒功率调节系统，建立了动态数学模型并对恒功率调节与负载传感系统的控制协调机理进行分析。
The system employs the variable speed regulation of electrically driven feed pump and the regulator valve to fulfill the control of water level.
该系统采用电动给水泵变速调节和调节阀共同完成水位控制。
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。
In the heat-supply system with distributed variable frequency pump, there exists a zero pressure difference, at which supply and return water pressures are equal.
分布式变频泵供热系统中存在零压差点，该点供回水压力相等。
Aim To reduce the error of the valve controlled system with energy saving hydraulic pump, which is caused by variable gain characteristic.
目的减少由于节能液压源下的阀控系统变增益带来的跟踪误差。
There are mainly two problems caused by long pipes in load sensing system. One is the stability of load sensing variable displacement pump and another is the response lag of feedback pipe.
从中发现了长管道给负载敏感系统所带来的两个主要问题，即负载敏感变量泵的稳定性问题和反馈油路响应滞后问题，从而确定了本文的理论研究方向。
Through the crank link system in high-pressured condition of variable speed movement with drilling pump power transfer.
在高压条件下，通过曲柄连杆机构的变速运动实现钻井泵动力的传递。
To settle the problem, a novel energy-saving motor used in screw pump was designed, and this motor could make efficiency of screw pump oil system improved and variable speed device decreasing.
为此，本文设计了螺杆泵用新型多星形移相变极电机，使得螺杆泵采油系统工作效率进一步提高，同时可以减少了变速装置。
The pump controlled variable displacement hydraulic system works together with the electronic proportional control system, high efficiency, energy saving and precise control.
泵控变量液压系统，与电比例操作系统紧密结合，节能高效，控制精确。
By use of mathematics, physics approach, the operating characteristic of rotating components of the double-pump double-loop full-power variable flux system is In-depth analyzed.
运用数学、物理的方法，深入地分析了双泵双回路全功率变量系统回转机构的运动特性。
Simultaneously, it provides the method to determine the best pressure of header system and optimum frequency of variable frequency pump based on the special working condition.
同时，给出了在特定工况下，确定最佳母管压力和变频泵最佳频率的方法。
Simultaneously, it provides the method to determine the best pressure of header system and optimum frequency of variable frequency pump based on the special working condition.
同时，给出了在特定工况下，确定最佳母管压力和变频泵最佳频率的方法。
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