this paper studies the forces on the piston couple of swashplate axial plunger pump considering the intertia force and friction.

该文对斜盘型轴向柱塞泵的柱塞副进行了受力分析和实例计算。

under the action of variation magnetic field, the permanent magnet moving-coil drives the plunger pump to move up and down and lift oil up to ground.

通过动力电缆给井下直线电机供电后产生交变磁场，永磁体动子在交变磁场作用下带动泵柱塞上下往复运动，从而达到举升抽油的目的。

a method of improvinging a plunger pump is introduced in this paper. our experience shows that installing surge damper to a plunger pump can improve hydrodynamc performance of the pump effectively.

介绍了空气室在柱塞泵管路中的应用，实际使用效果显示，在柱塞泵进出口加装空气室能有效地改善泵进出口管路特性。

as has been shown in practice, it is a new generation of the radial plunger pump which has new structure and reason…

实践证明，该泵是一种结构新颖，设计合理的新一代径向柱塞泵。

the transformation on sealing components of glass pipeline in import sulphuric acid refine device from abroad and sealing structures of the imported high pressure plunger pump is introduced.

介绍了引进硫酸精制装置中玻璃管路密封件以及高压柱塞泵密封结构的改造。

jbp250-hp radical plunger pump is a high pressure as well as a large displacement plunger pump developed by our country. connecting rod is one of the key spares.

hp型径向柱塞泵是我国开发的高压大排量柱塞泵，连桿是其中的关键零件之一。

internal combustion water power system integrated traditional internal combustion engine and plunger pump technique, made directly use of the rectilinear motion of plunger for output water power.

内燃式水动力系统将传统内燃机与柱塞式水泵技术集成为一体，直接利用活塞往复直线运动输出水动力。

the device integrated traditional combustion engine and plunger pump technique, made directly use of the rectilinear motion of plunger for outputting water power.

内燃式水动力装置将传统内燃机与柱塞式水泵技术集成为一体，直接利用活塞往复直线运动输出水压能。

a forced-closing-and-opening plunger pump is developed to solve the problems of gas lock and sand inflow and low pump efficiency in steam injection wells.

针对辽河油田蒸汽吞吐油井存在气锁、出砂、后期油稠泵效降低的状况，研制了强启闭柱塞抽油泵。

the internal combustion pump integrates the technologies of internal combustion engine and water plunger pump besides that as a new product, it can be industrialized easily.

三缸内燃式水泵是将发动机与柱塞式水泵的结构原理与技术融会一体形成的一种易于产业化的新型动力装置。

as has been shown in practice, it is a new generation of the radial plunger pump which has new structure and reasonable design.

实践证明，该泵是一种结构新颖，设计合理的新一代径向柱塞泵。

the method to estimate cavitation characteristic by analyzing impingement angle at the groove on porting plate of an axial plunger pump is put forward during design process period.

对柱塞泵设计过程中的空蚀特性，提出一种通过分析减压槽出口处的射流方向来评价高压轴向柱塞空蚀特性的方法；

the pump bodies are arranged on the base in pairs and each pair of the pump bodies is used as an independent plunger pump device.

泵体成对设置在基 座上，每一对则作为一个独立的柱塞泵装置。

the source of noise in the high pressure plunger pump is identified through frequency spectrum analysis and measurements show significant reduction of noise in the improved plunger pump.

基于高压柱塞泵噪声产生的机理分析与振动频率的计算，找出产生噪声的根源； 对实验测得频谱曲线进行频谱分析表明，改进后的高压柱塞泵的噪声得到了明显地改善。

aimed to decrease damping coefficient and enhance pump's dynamic performance, a method for reducing the radial plunger pump stator forces was developed by analyzing the type jbp-63 pump stator forces.

为了降低阻尼系数进一步提高泵的动态性能，通过对jbp-63型径向柱塞变量泵定子受力仿真分析，研究了减小径向柱塞液压泵的定子不平衡力的方法。

reciprocating plunger pump is a kind of major equipment for oil production in oilfield, and its technique function directly influences the normal safe operating of oil unit.

往复式柱塞泵设备是油田采油单位的主要生产设备，其技术性能的好坏直接影响到采油单位安全生产的正常运行。

working conditions of plunger in water hydraulic plunger pump is quite adverse, and its material needs rather high requirements on strength and wearability.

水液压柱塞泵的柱塞工况非常恶劣，对材料的强度和耐磨性都有较高要求。

the paper analyzes the reasons why there are noises with angle plunger pump and puts forward noise reduction measures.

分析了斜轴式柱塞泵产生噪声的原因，并提出了减低噪声的方法。