What is the common rail of Shengang excavator
In the field of engineering machinery, Shengang excavators are highly favored for their efficient and stable performance. As one of the core technologies of modern diesel engines, the "common rail system" plays a decisive role in the power and environmental protection of the excavator. This article will analyze the principles, advantages and common problems of the Shengang Excavator common rail system in the form of structured data based on the popular topics on the entire network in the form of structured data.
1. The basic principles of common rail system
Common Rail is a high-pressure fuel injection technology. The fuel is delivered to the common rail pipe through an independent high-pressure oil pump, and then accurately injected into the cylinder by an electronically controlled injector. Compared with traditional mechanical injection systems, common rail systems can achieve higher pressure and more flexible injection control.
| Comparison items | Traditional mechanical jetting | Common rail system |
|---|---|---|
| Injection pressure | 200-300bar | 1600-2500bar |
| Fuel injection control | Mechanical linkage | Electronic control unit (ECU) |
| Environmental protection | Lower | Meet the National IV/National Five Standards |
2. Technical advantages of Shengang Excavator Common Rail System
The common rail system used by Shengang excavator has the following characteristics:
| Technical Highlights | Specific performance |
|---|---|
| Ultra-high pressure injection | 1800bar continuous pressure, fuel atomization is more complete |
| Multi-stage jet technology | Single cycle can achieve 5 fuel injections, reducing noise and emissions |
| Intelligent fault diagnosis | Real-time monitoring of parameters such as oil pressure, fuel injection, etc., and automatically alarm |
3. Summary of recent hot issues (data in the past 10 days)
According to the heat of discussion across the network, the following are high-frequency issues related to the Shengang common rail system:
| Ranking | question | Frequency of occurrence |
|---|---|---|
| 1 | Interpretation of the error code of the common track system | Average daily search volume of 120+ |
| 2 | Solutions to Winter Startup Difficulty | Average daily search volume 85+ |
| 3 | Fuel injector cleaning cycle | Average daily search volume 60+ |
4. Maintenance suggestions
To ensure the long-term and stable operation of the common rail system, attention should be paid to:
1.Fuel quality: Low-sulfur diesel that meets the standards must be used (sulphur content <10ppm);
2.Filter replacement: The fuel filter element is replaced every 500 hours, and the air filter element is inspected every 250 hours;
3.System exhaust: After replacing the filter element, the exhaust procedure must be strictly implemented to prevent air from entering the high-pressure oil circuit.
5. Industry trends and future trends
According to the latest industry report, the market share of excavators equipped with intelligent common rail systems is expected to grow to 67% in 2024. Shengang has announced that it will be integrated in the next generation of modelsAI fuel consumption optimization system, through machine learning, adjust the fuel injection strategy in real time, and aim to reduce fuel consumption by 8%.
Conclusion: The common rail system of Shengang excavator represents the advanced level of engineering machinery power technology. Understanding its working principle and maintenance key points can effectively improve equipment attendance and reduce usage costs. It is recommended that users participate in manufacturer technical training regularly to master the latest maintenance skills.
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