应对带充填剂液体材料的超小型针阀。
Use these super-small, lightweight valves with fluids containing fillers.
其针阀由浮球臂带动，在液恢上升时开大。
Driven by the float arm of the needle in the liquid recovery opening up big time.
自动加浓阀主要由ptc、石蜡体和针阀组成。
The automatic enrichment valve is composed of PTC, wax and valve needle.
该模具采用热流道针阀式点浇口进料，无流道废料；
The mould is designed to take advantage of hot runner with the needle-valve type of pin-point gate, having no runner scraps.
在该芯片中编制控制算法实现对针阀开度快速、精确控制。
In this chip, we program control algorithm and realize the quick and accurate control of the opening of throttle valve.
针阀整体式热流道在低压下注射使注塑品在收缩时变形更小。
This whole needle valve type hot runner injection under low pressure, the injection molding products in contraction deformation is smaller.
可见流体在针阀与喷嘴出口间隙大的时候其内部旋流强度大。
Fluid can produce strongest internal swirl when the needle is far from the nozzle exit.
针阀整体式热流道在低压下注射使注塑品在收缩时变形更小。
This whole needle hotrunner less waste of materials, improve the quality of the injection molding products and more stable.
由于导阀系统排水量大于针阀的进水量，主阀控制室压力下降。
As guided needle valve system is greater than the amount of water displacement, the main valve pressure drop in the control room.
针阀整体式热流道材料浪费少，注塑产品的质量得到改善并更加稳定。
This whole needle valve type hot runner injection under low pressure, the injection molding products in contraction deformation is smaller.
汽车经长时间使用后，喷油器针阀表面会形成少量积碳，影响其喷油质量。
After the motor vehicle is used for a long time, a little carbon deposit is formed in the needle valve surface of fuel injector and the fuel injection quality will be affected.
冷却时未冷凝的燃料蒸汽通过位于腔室顶部的浮动针阀可以从腔室中逸出。
Fuel vapor that is not condensed as a result of cooling can escape from the chamber through a float needle valve at the top of the chamber.
为了提高针阀偶件的工作可靠性和使用寿命，笔者设计了一种新的针阀偶件。
In order to enhance the needle valve partner's working reliability and the service life, the paper designs one kind of new needle valve partner.
水力控制阀由一个主阀及其附设的导管﹑导阀﹑针阀﹑球阀和压力表等组成。
Hydraulic control valve consists of a main valve and attached to the catheter, guided valves, needle valves, ball valves and pressure gauges and other components.
此外，笔者提出了若干新的概念和考虑了针阀和压力室形状对射流雾化的影响。
In addition, we suggest some new concepts and consider the effect of the shape of pin valve and pressure chamber on the atomization of a jet.
通过针阀杆的旋转即可以关闭针阀又可以带动清油器升降，清除喷嘴中的积碳。
The needle valve can be closed through the rotation of a needle stem, and the oil cleaning device can also be driven to lift to clean out carbon deposit in the nozzle.
密封可靠，针阀填料更换可在不停机情况下进行，角阀方便快捷不影响系统运行。
Hermetic sealing is reliable, the filling changes but is in progress under not stop calculation situation, the convenient rapid block of wood affects systematic operation.
经理论分析和计算发现，短针阀喷油器可以进一步降低针阀对密封座面的冲击应力。
By theoretical analysing and calculating, we find the short needle valve fuel injector can further decrease the impact stress of the needle valve to the sealed conical surface.
球阀是带圆形孔的球体作启闭件， 球阀球体随阀杆转动， 针阀以实现启闭动作。
The valve's disc is ball with hole and driven by stem to open and close.
结果表明，电磁阀铁心弹簧刚度对喷油规律没有影响，但其质量影响针阀落座响应时间；
The results show that stiffness of spring does not affect the injection rate, but the mass of will affect the needle valve closing response time.
结果表明：溢流式缓冲比针阀式缓冲吸收冲击能力强，速度平稳，适合于气缸高速运行的场合。
The results show that relief valve cushion has stronger absorbing capacity and smooth velocity; this advantage is available for high-speed cylinder.
阀体整体环氧树脂涂装， 球阀使阀门的壳体完全与介质隔离， 针阀有效防止阀门被戒指腐蚀。
The whole valve body is epoxy resin lacquer baked, which fully isolate valve shell from media, thus effectively prevent valve gate from being eroded by media.
采用针阀代替安全阀，实验研究了安全阀进口干度、阀开度对安全阀及下游管路中流动堵塞的影响。
To experimentally investigate it, needle valves and transparent glass tubes with flow channels similar to that of safety valves were used instead of the safety valve.
进口持压泄压阀由主阀、泄压/持压导阀针阀、 、球阀、微形过滤器和压力表组成水力控制接管系统。
A pressure relief valve from the main valve, pressure relief / holding pressure pilot valve needle valve, ball valve, micro shaped filter and pressure gauge hydraulic control over the system.
结果表明：节流孔板是电控共轨喷油器的重要构成部分，既控制着唢油嘴针阀的开启速度，义控制着喷油率的形状。
The results show that, as important components of electronic injector used in common rail system, orifices affect on the open rate of nozzle needle and injection rate shapes.
本文介绍了针阀式缓冲气缸和溢流式缓冲气缸的结构及工作原理。通过仿真计算比较了它们的缓冲特性和吸收冲击的能力。
The structure and principle of needle valve cushion and relief valve cushion were introduced. Cushion performance and capacity of absorbing impact were compared by simulation.
本文通过对柴油机配置不同喷油器所进行的排放对比试验，研究分析了喷油器喷孔流量系数、喷孔直径、针阀升程对排放的影响。
In this paper, the influence of flow coefficient of injector hole, hole diameter and needle lift on emission is studied through contrast experiment of different injectors.
通过实践总结和分析，论述柴油机燃油供给系统三大精密偶件，即柱塞、出油阀和针阀偶件的四种检测方法，为实际操作提供经验。
This paper mainly expounds four inspection means for three big precision coupling of fuel supply system in diesel engine based on the practice, which can be covered for practical operation.
能满足喷油嘴偶件生产厂家对喷油嘴偶件针阀、针阀体自动分选精度，速度的要求以及对成本投入的要求，改变手工分选的落后局面。
All these characteristic can satisfy the demand of the factory. By using this system can change the laggard situation of the manual separation of injector valve and orifice.
能满足喷油嘴偶件生产厂家对喷油嘴偶件针阀、针阀体自动分选精度，速度的要求以及对成本投入的要求，改变手工分选的落后局面。
All these characteristic can satisfy the demand of the factory. By using this system can change the laggard situation of the manual separation of injector valve and orifice.
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