泵缸

Piercement of drilling pump cold cyclinder is a serious problem existed in field application.Piercement is caused by cavitation erosion.

钻井泵冷缸刺漏是钻井泵在现场使用中存在的一个较严重的问题。

Hydraulic cylinder piston rod connects gate ,the operation principle of manual hydraulic knife gate valve is that through manually handle , manual- driven hydraulic pump makes hydraulic fluid in the upper and lower chamber of hydraulic cylinder to drive gate opened and closed to achieve valve's open and closed.

手动液压刀闸阀由是由液压缸活塞杆连接阀门闸板，其操作原理手动驱动液压泵手柄把液压油通过手动换向阀压入液压缸的上下腔来带动活塞杆做上下动作，从而带动闸板的启闭来达到阀门开关作用。

The signal test table is established where the Labview signal collection system collects the concrete exit pressure signals, the piston displacement signals of concrete cylinder and the main hydraulic signals. The real measured signals are processed through arithmetic equilibrant filter of the data signal processing method. The pumping efficiency and relative error of real time output are measured by two output calculation methods.

搭建了实测信号试验台，通过Labview信号采集系统现场采集混凝土出口压力信号、混凝土缸活塞位移信号和主液油信号，采用算术平均滤波法的数字信号处理方法对实测信号进行处理，通过两种排量计算方案检测泵车实时排量的泵送效率和相对误差。

We find that the ratio between the internal and external leakage has the great effect on the controller structure and parameter.（3）Many innovative circuit principles of pump controlled cylinder system have been suggested.

确定了泵控差动缸系统的控制器结构和参数设定原理，发现了泵的内泄漏与外泄漏比值对控制器设计的关键作用；3。

The new model is a first-order ordinary differential equation group for the fluid pressure in the cylinder...

该方程是关于液缸内液体压力、泵阀升程与泵阀运动速度的一阶常微分方程组。

Main Contents and Investment Scale: The construction project focuses on producing ship matching products including auxiliary project for the power station: marine diesel engine and marine generator; Auxiliary parts and equipment for cabins: marine gear box and electronical controlling device; pumps and valves: hydraulic rubber tubes, hydraulic oil cylinders, various valves, various pneumatic actuators, electric actuators, magnet valves, pressure regulators and electric appliance localizers etc.; marine electric appliance: marine APT series of pilot lamp buttons, GMC series of LG low-voltage electric appliances, voltage regulators, marine power distribution boxes, deck machinery: marine crane, electric hydraulic reamers, anchors, various hoists, marine materials: marine stainless steel pipes, marine watertight doors, portholes, rectangular windows, hatch covers, spring dragging hooks, coarse water screens, marine steel plates, marine communication navigators etc..

项目名称：船舶配套。2、项目主要内容及投资规模：建设项目以船舶配套产品为主，包括主机电站类的船用柴油机、船用发电机；机仓辅机类的船用齿轮箱、电子控制装置；泵、阀件类的液压胶管、液压油缸、各种阀门、各种气动执行器、电动执行器、电磁阀、调压阀、电器定位器等多种阀门配件、各种船用泵类；船用电器类的船用 APT 系列指示灯按钮、 GMC 系列 LG 低压电器、电力稳压装置、船用配电箱；甲板机械类的船用起重机、电动液压绞车、锚机、各种吊机等；舾装材料类的船用不锈钢管、船用水密门、舷窗、矩形窗、舱口盖、弹簧拖钩、粗水滤、船用钢板；船用通讯导航类设备等。

The traditional hydraulic pressure riveter uses the ordinary high-pressured fluid pump, the cylinder body is big, unwieldy, and moreover the current capacity of fluid pumps is big, the power loses in a big way,too.

页数：51液压铆枪被广泛应用于汽车、船舶、锅炉、桥梁、建筑等行业。传统的液压铆枪采用普通的液压泵，液压缸体积大，太笨重，而且液压泵流量大、功率损失也大。

Inspection, screw open the cylinder high-pressure pipeline joints, using hand pump pumping pumps, fuel injection pump at the top of the case found that there is oil outflow tubing connector, the valve of the oil seal bad (of course such as a broken valve spring is also this would be the case), such as cylinder seals appear undesirable situation, it should conduct a thorough debugging injection pump maintenance, the replacement of dual pieces.

检查时，拧开各缸高压油管接头，用输油泵之手油泵泵油，如此时发现喷油泵顶部油管接头有油流出，则说明该出油阀密封不良（当然如出油阀弹簧折断也会出现这种情况），如多缸出现密封不良现象，则应对喷油泵进行彻底调试保养，更换偶件。

For the upper and lower physical decomposition of the fuel pump, pump body can be placed, open side cover, remove the pump head fastening nut, remove the pump head, hand clamp plunger living roots, slowly out the plunger and spring cylinder fault, with clean petrol or diesel repeated washing, wash, after-loading complex (note the plunger into the regulation of regulation must fork arm), and alternately tighten pump head nut, rotating camshaft, oil pump pulled the handle to manipulate the review.

2对于上、下体能分解的喷油泵，可将水泵体平放，打开侧面盖板，卸下泵头紧固螺母，取下泵头，用手钳夹住柱塞根部，慢慢抽出故障缸柱塞和弹簧，用清洁的汽油或柴油反复清洗，洗净后装复(注意柱塞调节臂必须装入调节叉内)，并交替拧紧泵头螺母，转动凸轮轴，扳动油泵操纵手柄复查。

The results show that fuel consumption and running unevenness of three-cylinder internal combustion water pump are higher than those of engine driving pump system while effective thermal efficiency of three-cylinder internal combustion water pump is less than that of engine driving pump system.

并与发动机驱动柱塞泵系统的外特性进行了对比分析，结果表明三缸内燃式水泵的燃油消耗率和运转不均匀度明显低于发动机驱动柱塞泵系统，而有效热效率明显高于发动机驱动柱塞泵系统。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。