| 1. | Differential pressure flow transducer sensor
差压流量传感器 |
| 2. | Constant pressure flow controller
稳压流量控制器 |
| 3. | Application of differential pressure flow switches in ice - storage air conditioner
压差式流量开关在冰蓄冷空调中的应用研究 |
| 4. | The method of hydraulic calculation with non - pressure flow from the outlet pipe of the warping dam
淤地坝涵管无压流水力计算方法 |
| 5. | Full - flow lubricating oil filters for internal combustion engines - methods of test for differential pressure flow characteristics
内燃机满液流润滑油过滤器.不同压力流量特性试验方法 |
| 6. | Methods of test for full - flow lubricating oil filters for internal combustion engines - part 1 : differential pressure flow characteristics
内燃机全流式机油滤清器试验方法第1部分:压差-流量特性 |
| 7. | The pump with a plunger device , which can cope with water pressure flow to work smoothly under a high speed
活塞式水泵，可以自动调节水的压力和流量，保证高速下的安全操作，是一种超精密的产品。 |
| 8. | Seawater intrusion is modelled as a nonlinear system of coupled two parabolic partial differential euqaitons , of which one is the pressure flow equation and the other one is the concentration equation of convection - dispersion type
摘要海水入浸问题的数学模型是两个耦合抛物型偏微分方程，其中一个是关于压力的流动方程，另一个是关于浓度的对流扩散方程。 |
| 9. | Filling of different quantity is completed by a fixed normal pressure flow channeling parameter controlling the filling time . the machine is supplied with a high temperature pressure steam sterilizing system to ensure a sound sterilizing effect during the filling process
本机采用plc可编程控制，配以6英寸触摸屏人机界面系统，采用常压式固定流道参数，控制灌料时间来实现不同计量的灌装。 |
| 10. | This paper analyses the type , function and characteristics of usual proportional control valves and raises a new modificative version in the light of their drawback . that is , basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination . , determination of the minimum controlled pressure difference as well as flow controlling range and structure of main valve and research of the dynamic and static characteristic , the paper puts forward control principle of " flow - load pressure change - displacement revision " and pressure / flow double closed loop , and further expounds that using a proportional controller and a electric mechanical transducer can separately serve the control function of pressure or flow as well as flow pressure combination
本论文分析了目前常用比例阀的类型、功能、特性，并针对其不足提出新的改进方案，即：以流量放大，电反馈两个原理为基础，通过对流量闭环控制及压力流量复合的计算分析、确定上最小控制压差及流量控制范围，确定主阀结构、功能特性研究等，提出了“流量? ?负载压力变化? ?位移修正”的控制原理和压力流量双闭环控制原理，并进一步论述了利用一个比例控制器和一个“电?机械转换器”就可完成独立的压力或流量控制功能以及流量压力复合控制功能。 |
