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。
The computer PID control for electro hydraulic proportional constant presure variable displacement pump with electric feedback is introduced.
介绍了电反馈电液比例恒压变量泵的计算机PID控制。
Hydraulic dive drilling pump adopts variable hydraulic pump and dynamic cylinder as its power end and its fluid end is identical with the triplex single acting piston pump.
液压驱动的钻井泵采用变量液压泵和动力油缸组成液压钻井泵的动力端；液力端和现在使用的三缸单作用活塞式钻井泵相同。
Through a study in characteristic curve of the engine and hydraulic pump, the matching efficiencies between engine and fixed and hydraulic variable displacement pump were analyzed respectively.
综合发动机和液压泵的特性曲线，分别对发动机与液压变量泵、定量泵进行了匹配效率分析；
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；
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。
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。
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。
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。
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。
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。
Now, the domestic large-and-middle-scale hydraulic excavator generally adopts the diesel engine to urge the variable pump to carry on the work.
现在，国产大中型液压挖掘机一般采用柴油机驱动变量泵进行工作。
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。
The transmission ratio of manual variable single-pump single-motor hydraulic transformer is not accurate. To avoid the problem, the single-pump multi-motors hydraulic transformer is proposed.
针对单泵单马达液压变速器手动变量传动比不准确的问题，提出了单泵多马达液压变速器。
The transmission ratio of manual variable single-pump single-motor hydraulic transformer is not accurate. To avoid the problem, the single-pump multi-motors hydraulic transformer is proposed.
针对单泵单马达液压变速器手动变量传动比不准确的问题，提出了单泵多马达液压变速器。
应用推荐