The National Auto Parts Fair, also known as the Auto Parts Exhibition, is a traditional event in China's auto parts industry. It is like an annual feast for the industry, gathering excellent auto parts enterprises, experts, scholars, and a large number of auto parts enthusiasts from all over the country. This long-standing exhibition originated in 1965 and has become an important benchmark for China's automotive parts industry after decades of development.
The 95th National Auto Parts Exhibition will be held from April 21-23, 2024 at the Shandong International Convention and Exhibition Center. This grand event will once again break records, utilizing nearly 100000 square meters of space from the eight exhibition halls and shared halls of Shandong International Convention and Exhibition Center. It is expected to bring together more than 2300 exhibiting companies and over 60000 professional buyers of automotive parts. Such scale and influence will undoubtedly promote the development of China's automotive aftermarket, helping auto parts companies expand their markets and enhance their brand influence.
Zhonglutong is a manufacturer and seller of diesel engine components, dedicated to providing customers with high-quality fuel injection system accessories. The company has passed the quality system certification, and its products meet international quality standards with highly competitive prices. They are exported to South America, the Middle East, Southeast Asia, Africa and other places, and have gained widespread recognition and recognition in the market. The production process, sound production quality management mechanism, and testing equipment adopted by the company,
We specialize in producing three major components for diesel engine fuel supply systems: pump head, fuel injector, plunger, control valve, valve plate, unit pump, fuel injector calibrator, high-pressure common rail test bench, fuel injector, common rail pump, and common rail valve components. Our products are widely used in the maintenance and repair of light, medium, and high-power diesel engines, covering industries such as automotive, agricultural, engineering machinery, and marine. At present, our company has over 6000 models of diesel injection systems and common rail systems, and is constantly exploring new products to meet the needs of the market and customers. 1NYGK
I hope to explore and exchange ideas with your company through this opportunity, so that we can deepen our cooperation and jointly explore and occupy the market. Zhonglu Tongcheng cordially invites you to attend, and we are honored.
拆开增压器，发现机油从涡轮轴的两端渗出，同时流进进气管和排气管，故障点找到了。流进进气管的机油，会被吸进气缸里燃烧，故排气呈黑色，流进排气管的机油，会被高热的废气带走，使排气呈灰蓝色，两者混合则排气呈蓝黑色。
这就奇怪了，通常这样的故障，是因为涡轮轴及轴承过快磨损，油封失效造成漏油。可是这个增压器是新更换的，而且并不缺少润滑，不可能这么快就产生故障。怎么会这样是配件质量不行，还是其它原因造成的 针对眼前的事实，经商量讨论，认为新增压器质量差可能性，征得车主同意，再更换一个新的增压器。
在装好后一次急加速时，听到气门室盖上的加机油口盖有丝丝声，好像有气体从那里冒出。拧开加机油口盖，有大量气体冲出，这时发现，发动机的蓝烟明显减少。再着车一段时间，故障基本消失，发动机工作正常。拧上加机油口盖，故障又重新出现，这说明不是增压器的问题。打开加机油口盖着车一段时间，蓝黑色烟逐渐消失，拆开增压器再看，果然涡轮轴处不再渗油。
正常情况下，如果曲轴箱气体气压正常，因加机油口盖的单向限压、卸压作用，气体很少从气门室盖加机油口冲出，现在这里冒气，这说明此时曲轴箱里气体压力，超过限压
那么，是什么原因造成曲轴箱气体压力过高呢 该机曲轴箱气体压力的控制，主要是由强制通风装置，结合加机油口盖来进行的。曲轴箱里面的气体，受到气缸高压燃气泄漏加入，及发动机工作时的高温加热，压力很快，由于进气管的负压，通过强制通风装置不断将气体抽进进气管作为进气一部分，加机油口盖辅助卸压，曲轴箱里面的气体压力被减弱，稳定在较低的水平。如果控制失效，气体压力就会升高导致异常，这对增压柴油机来讲，因其气缸工作压力、温度
既然加机油口盖正常，那么很大的可能是强制通风装置失效。但前面已经检查过，强制通风装置是的。再次试车的时候，松开强制通风装置的进气管，发现没有吸力，如果正常，这是通向涡轮增压器进气管的，应该吸力很大才对，有丝丝的气流声的。将强制通风装置出气管和增压器进气管的连接管处松开，同样没有进气吸力，用大拇指按住增压器上和连接管相连的金属管一端，也丝毫没有吸力。难道是金属管堵塞了 用螺丝刀往管里一捅，好像有橡胶一样的东西挡住，拆下一看，原来真是有橡胶在里面，而且把整个管都堵塞死了。
