介绍一种采用计算机控制与检测气动换向阀试验台的特点和测试系统设计。
This paper introduces the features of a computer-controlled testing device for pneumatic directional valve and pneumatic system tests and measurements.
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 proportional variable pump system made up with electrohydraulic proportional reversing valve and axial variable pump is a new kind of hydraulic dynamic structure.
在热泵系统四通换向阀后的排气管上加旁通毛细管和在气液分离器中加过冷管。
A by-pass capillary tube was added on the discharge pipe behind the four-way valve and a tube was added in an accumulator in a heat pump system to solve the problem.
气动系统电磁换向阀采用汇流板集装方式，减少了占用空间；
Electromagnetic valve of pneumatic system adopts conflux boards so as to reduce space.
通过液压冲击现象的机理研究，找到其影响因素，设计的旋转换向阀及液压系统。
Via the mechanism research of the phenomenon of hydraulic shocks, the shock factors are found and designs of the rotating reversing valve and hydraulic system are finished.
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。
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.
介绍一种能够在工程机械液压系统中改变两个定量马达连接方式的液控换向阀。
The author introduces a kind of hydraulically controlled direction valve to change the connecting mode between two fixed displacement motors in hydraulic systems of construction machinery.
三位换向阀滑阀机能不但影响液压系统的工作状态，也影响执行元件换向时的工作性能。
Slide valve function of three position directional valve not only affects the working state of hydraulic system but also affects the working performance of implement part when changing direction.
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 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.
通过操作在多路换向阀旁的油门手柄，可控制发动机的转速，从而调节系统的流量改变机构的工作速度。
Operating the engine-control handle, the engine speed can be controlled, then the flow of control system can change the operation speed of frame.
气动自动化系统是实现传动与控制的主要方式之一，其中由稳压元件、换向阀和气缸等所组成的气动控制回路更是工业自动化中常用的回路。
The pneumatic control circuit, which is consisted of the pressure regulator component, the direction valve and the cylinder, is the most commonly used circuit in the industrial automation.
结果表明：适当降低流过蓄热体的气体流速，缩短四通换向阀的切换时间，可降低烟气的出口温度，提高系统的余热回收率。
Result shows that decreasing fluid rate and shortening switching time can decrease the temperature of the exhaust gas and increase the recovery rate of waste heat.
提出了一种采用旋转式换向阀及弹簧蓄能器模拟发动机负载的液压负载模拟系统，详细介绍了该系统的工作原理；
A new hydraulic load simulation system, adopting a rotation directional valve and using a spring accumulator simulating the starter load, is proposed and working principles are described.
设计了液压负载模拟系统中的关键元件旋转式换向阀，建立了其数学模型和仿真模型，并仿真分析其关键参数对液压负载模拟系统的影响规律。
The rotation directional valve, key component of the system, is developed. Influence principles of structural parameters are analyzed based on the mathematical and simulation model.
802电磁ꏧ换向阀广泛适用于工作条件好，安装空间小等场合的气动自动化控制系统，它接到电信号能迅速切换气流的方向达到自动控制的目的。
802 solenoid directional valves are widely used for pneumatic auto control system in small installation space with good working conditions. When receiving electrical signals they function to quick.
开式系统是指液压泵从油箱吸油，油经各种控制阀后，驱动液压执行元件，回油再经过换向阀回油箱。
Open system is the pump suction from the tank, the oil through a variety of control valves, the drive hydraulic actuators, valve oil return back for another fuel tank.
开式系统是指液压泵从油箱吸油，油经各种控制阀后，驱动液压执行元件，回油再经过换向阀回油箱。
Open system is the pump suction from the tank, the oil through a variety of control valves, the drive hydraulic actuators, valve oil return back for another fuel tank.
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