制动阀

Imagine the case of a train which comes to a halt in the middle of nowhere. The driver notices that he has lost all the brake pipe air so the emergency brake applied. After finding that the conductor has not stopped the train and no passenger alarm valves have been operated, he starts trying to find out the cause.

举个例子，一列车停在了线路的某一处，司机发现制动管里没有了空气，所以造成了紧急制动，确认不是列车员停下了列车，也不是旅客拉下了报警阀后，他开始试图寻找原因。

The control of an electromagnetic valve in the ABN brake chamber forces the spring to vibrate at a frequency of 18 times per second while braking, and also with certain natural frequency reciprocating motion.

利用停易ABN制动气室弹簧的振动及电控装置控制电磁阀激振，迫使气室弹簧在整个制动过程中不但以每秒18次的自振频率振动，同时又以一定的固有频率往复运动，利用弹簧的储能作用，将刹车时产生的声能和热能用弹簧的势能和动能来置换，从而达到降低制动噪声、温度和磨损的目的。

By use this simulation program, not only can research on the brake capability of F8 distribution valve, but also can improve the valve, economize the time of experiment, accelerate the design of new production, and has important significance for design the new brake system which adapt for speed-up, high-speed and heavy-haul train.

通过使用本仿真程序，不仅可以进行F8阀制动性能的研究，还可以将其应用到阀的改进设计中，节约了试验时间，加快了新产品的开发速度，对设计适用于提速、高速和重载列车的新型制动系统有很重要的现实意义。

The rubber diaphragms used by train brakes could pass the air pressure in the air brake distribution valve , and straightly affected the brake property and running safety.

铁道车辆制动机的橡胶隔膜在空气制动分配阀中起传递空气压力的作用，直接影响制动性能和行车安全。

Brake system: it uses safe and reliable dual-loop air-break break system, the stored energy pump has the function of parking brake, the selected relay valve is reliable in performance.

刹车系统：采用安全可靠的双回路断气刹制动系统，储能分泵具有驻车制动功能，选用性能可靠的继动阀。

At this point easy to increase the temperature regulating valve, brake system pressure gauge shows the pressure enough, regulators Department can hear the sound leakage.

此时调压阀温度易升高，制动系统气压表则显示气压不足，调压阀处可听见漏气声音。

Because the particularity of ABS, the brake pressure could decrease in very fast ratio. So the retuning pump must work at the same time during pressure decrease. This is why ABS valve is different from other normal valves.

由于ABS的特殊性，在减压过程中要求制动系统压力下降速率很快，因此减压时必须开启回油泵，这也是ABS电磁阀区别于其它电磁阀的主要原因和特点。

Travel mechanism of each track consists of a variable two-speed piston motor, a planetary reducer and a parking brake, travel brake buffer valve is mounted on motor to reduce hydraulic shock.

每侧履带的行走机构由一个变量双速柱塞马达、行星减速器和制动器组成，行走制动缓冲阀与马达一体安装，吸收了行车时由于制动或载荷变化带来的液压冲击。

In this paper, the existing production vehicle braking and acceleration systems to illustrate principles and analysis, Pointed out that it occurs in the course of the problem, With related technologies as the prerequisite, The use of hinged connections, solenoid valve motion, sensor detection, ECU control methods, Made false step on the accelerator pedal to switch the system concept, Emergency brake foot wrong lane when the accelerator pedal will speed up the system to switch into the brake system of the idea, Belongs to the field of automotive active safety technology.

摘 要：本文主要对现有量产汽车制动及加速系统原理加以说明与分析，提出其在使用过程中出现的问题，再以相关技术为前提，运用铰接连接、电磁阀动作、传感器检测，ECU控制等方法，提出误踩加速踏板切换系统构想，即紧急制动误踩加速踏板时将加速系统切换成制动系统的想法，属于汽车主动安全技术的领域。

In the main , the valve is used for the auxiliary brake for the purpose of separating the normal service brake form the auxiliary /parking brake to prevent the addition of braking forces.

此阀主要用于辅助制动，它的作用能使辅助制动/驻车制动同主车制动独立开，以防止制动力叠加。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。