According to the parameter selection problems of diamond drilling in hard rocks analysis is made from weight on bit, rotation speed and pumping quantity.
针对坚硬地层金刚石钻进参数的选择问题 ,从钻压、转速与泵量三方面作了分析 ,提出了合理选择钻进参数的方法 ,以保证正常生产施工的需要 ,提高钻探进尺效
The choice for sand pumping quantity is the key factor to pump delivery while grouting pile being drilled with inverse cycle.
砂石泵泵量的选择是泵吸反循环钻孔灌注桩钻进工艺的关键 ,通过公式演算 ,提出泵吸反循环钻孔灌注桩钻进泵量的选择方
Diesel engine,variable displacement pump and load make of an energy consuming system.
针对柴油机驱动液压钻机在工作过程中存在的大量能量损失的问题,将发动机、变量泵及负载作为一个动态系统来研究其节能问题,分析了该系统各环节的匹配原理和方法。
It can be seen from the model that the two valve controlled motors would be coupled with each other if the characteristic of variable displacement pump is taken into account.
探讨了由变量泵为液压源、2个阀控马达为执行元件以及惯性负载组成的液压控制系统的数学描述 ,并给出了其线性化模型 。
This paper calculates, analyses and determines the pressure point of ma-ximum of ouput power and saving-energy efficiency of differential pressure and Limited pressure variable displacement pump.
本文计算、分析、确定了限压式变量系和差压式变量泵输出功率最大值和节能效率最大值的压力点；并提出了使这两种泵所组成的容积节流调速回路，实现泵和回路共同工作在最佳节能工况的匹配原则和调整方法。
The procedure improvement about E-D11type measuring pump diaphragm replacement;
E-D11型计量泵膜片更换程序的改进
The structure,characteristics,application scope,application examples and points for attention of such pumps in chlor-alkali production are introduced as canyon-type pumps,magnetic pumps,measuring pumps,vortex pumps,liquid-ring pumps and residual-slurry pumps.
介绍了氯碱生产中采用的屏蔽泵、磁力泵、计量泵、漩涡泵、液环泵、AHR型渣浆泵的结构、特点、适用范围、应用实例及使用中的注意事项。
The analysis on the energy-saving of the variable pump system controlled by the electro-liquid pressure valve;
电液比例压力阀控制变量泵系统的节能分析—双液阻控制系统
Experimental study on A7V225SC braking variable pump;
A7V225SC刹车变量泵试验研究
Adaptive Control Algorithm for Variable Pump-Variable Motor System
变量泵-变量马达自适应控制算法研究
Research on Testing System for Variable Displacement Pump Based on Virtual Instrument;
基于虚拟仪器的变量泵测试系统研究
Research on Enhancing Performance of Electro-hydraulic Proportional Variable Pump;
提高电液比例变量泵控制性能的研究
Modeling and Simulation for Electro-hydraulic Proportional Variable Displacement Pump Control Motor System
比例变量泵控马达系统的建模与仿真
Neural Network Compensator for Dead-Zone of Proportional Variable Displacement Pump
比例变量泵死区的神经网络补偿研究
Dynamic Analysis of Control Mechanism of K3V Series Variable Displacement Pumps
K3V系列变量泵控制机构动态特性研究
Optimization and Study on Variable Displacement Pump-Fixed Displacement Motor Volume Speed-modulating System
变量泵-定量马达容积调速系统优化研究
Optimization and Study on Volume Speed-modulating System of Variable Displacement Pump-Fixed Displacement Motor
变量泵—定量马达容积调速系统优化研究
Digital control variable displacement pump is key that is to realize high efficiency transmission technology.
数控变量泵是实现高效传动的技术关键。
Control Mode Study of Variable Primary Flow in Ground Source Heat Pump;
土壤源热泵一次泵变流量控制方式的研究
Analysis on energy efficiency of water pump control methods in variable primary flow systems
一次泵变流量系统水泵控制方法的节能性分析
Optimization of the Hydraulic Pipe-network for Primary-only Variable Chilled Water Flow System in Air-conditioning;
空调一级泵变流量水系统的管网优化
Development of Assembly Line for Swash-Plate Axial Variable Displacement Piston Pump;
斜盘式轴向变量柱塞泵装配线的研制
Digitization Frequency Controller for Metering Pump
计量泵数字变频控制系统研究及应用
An Experimental Study of Closed-loop Electro-hydraulic Proportional Variable Piston Pump
电液比例闭环变量柱塞泵的实验研究
fixed displacement pump
定量排泵（工作时每个循环的液体排量不变）
Analysis of Instantaneous Flow Rate of Double-Acting Variable Vane Pump
双作用式变量叶片泵瞬时流量特性的分析
In this paper, the control strategies of variable flow in secondary pump system and primary pump system in air conditioning were also discussed.
本文还探讨了空调二次泵系统和一次泵系统变流量的控制策略。