压力泵

The failure mode and failure mechanism of hydraulic pump are analyzed in this paper,and then the temperature,pressure and rotating speed are decided primary factors for synthesis stress and the conclusion that the synthesis stress can be used in validating the life of the pumps is received.

通过对柱塞泵的故障模式及故障机理分析，确定了温度、压力和转速是与敏感应力相关的主要因素，并得出了利用敏感应力可以进行液压泵寿命的验证的结论。

A tradeoff between turbine temperature and pump discharge pressure is normally made to establish the turbopump requirements.

一权衡之间的温度和涡轮泵的排气压力，通常建立涡轮泵的要求。

If the power shift pressure decreases, the pump will upstroke in order to increase the output of the pump.

如果力量转移压力减少，泵浦意志向上的一击为了增加泵浦的产品。

The characteristic of engine working at different mounting way and different environment is analyzed. Selecting pump pressure, speed difference and its variance ratio as input, and current of pump power control and pressure difference control as output, fuzzy control is adopted to improve the power matching and energy saving control method.

分析了在不同安装方式和不同环境下发动机的工作特性，以液压泵的压力，转速差和转速差的变化率作为输入，泵功率控制电流和负载压差控制电流作为输出，采用模糊控制对动力系统的匹配与节能控制方法进行了优化。

Numerical simulation and performance prediction of interior flow field for axial-flow pump with front guide impeller

得到了轴流泵内部流场的压力分布、速度分布情况，并对分布情况的特征进行了分析，初步了解轴流泵内部流场的流动情况。

This design proposal adds the arresting gear on the water pump vehicle, on the pump vehicle's disc brake paired mounting in the orbital both sides, the disc brake needs the pressure oil to use the hydraulic pressure station supplies which installs in the pump vehicle, uses the hydraulic pressure to open, not when pressure the small dish shape spring applies the brake, to use holds the axle brake way.

论文编号：JX244 所有图纸，外文翻译。论文字数：54119。页数：101本设计方案在水泵车上加制动装置，泵车上的盘式制动器成对安装于轨道两侧，盘式制动器所需压力油用在泵车安装的液压站供给，采用液压打开，无压时碟形弹簧制动，采用抱轨制动方式。

This design proposal adds the arresting gear on the water pump vehicle, on the pump vehicle's disc brake paired mounting in the orbital both sides, the disc brake needs the pressure oil to use the hydraulic pressure station supplies which installs in the pump vehicle, uses the hydraulic pressure to open, not when pressure the small dish shape spring applies the brake, to use holds the axle brake way.

论文编号：JX244 所有图纸，外文翻译。论文字数：54119。页数：101摘要本设计方案在水泵车上加制动装置，泵车上的盘式制动器成对安装于轨道两侧，盘式制动器所需压力油用在泵车安装的液压站供应，采用液压打开，无压时碟形弹簧制动，采用抱轨制动方式。

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我公司目前代理的主要产品有：◆日本Yuken的叶片泵、变量柱塞泵、比例阀、方向阀◆瑞士Wandfluh各种比例阀、方向阀、插装阀、微型阀、特殊用途阀◆台湾DINGZING的高品质聚氨脂油封，尘封◆瑞典CEJN的耐振压力表、各种快速接头、超高压产品◆美国PARKER的胶管、接头、钢管、卡套接头及密封件◆意大利CARCO的大型、重载液压及旋转密封（尺寸 10～2000mm）◆意大利Walvoil多路阀及控制元件◆意大利Marzocchi高压齿轮泵和高压齿轮马达◆意大利intermot马达◆日本SumitomoQT内啮合齿轮泵，日本ACT压力开关◆意大利POLYPAC橡胶组合封、尘封、格来圈、斯特封、耐磨环◆日本NOK密封、耐高温聚氨脂油封，荷兰ERIS骨架油封，德国COG各种O型圈◆日本坂上液压密封产品◆德国B+S：DAS、DSM组合密封、各种夹布橡胶高压密封◆意大利ATS：格来圈、斯特封、特康防尘圈、旋转格来圈深圳爱力华实业有限公司重庆办事处已正式成立，欢迎各界朋友们来电来函咨询。

In the upstroke, fluid pressure in the plunger acts on inner surface of expansion sleeve and makes it expand outward, keeping the seal ring press on the inner wall of pump barrel to form good sealing.

上行程时柱塞内部的流体压力作用到胶套内表面上使之向外膨胀，使密封环始终压在泵筒内壁上，形成良好的密封；下行程时弹性伸缩套恢复原状，柱塞和泵筒之间产生间隙。

Feed tank back, as a result into the oil, back to asphalt are not being cut costs, the low working pressure pumps, pump with large flow into the hydraulic cylinder, so a rapid increase in the feed tank.

进给缸后退时，因进油、回油路均没被节流，泵工作压力低，泵以大流量送入液压缸，故进给缸快速上升。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。