The 4B3.9 Cummins engine is a vital component in various industries, particularly in China, where it powers numerous applications from construction to agriculture. Understanding this engine’s specifications, performance, and maintenance is crucial for operators and technicians alike.
In this guide, readers will explore the engine’s design features, operational efficiency, and common troubleshooting techniques. Additionally, insights into the market trends and support services in China will be provided, ensuring a comprehensive understanding of the 4B3.9 Cummins engine.
By delving into this topic, readers will gain valuable knowledge that can enhance their operational capabilities and decision-making processes. Whether you are an industry professional or a curious enthusiast, this guide will equip you with the essential information needed to navigate the world of 4B3.9 Cummins engines effectively.
Comprehensive Guide to the Dongfeng Cummins 4B3.9 Diesel Engine
The Dongfeng Cummins 4B3.9 diesel engine is a notable product in the realm of industrial engines, particularly in China. This engine is a result of a joint venture between Dongfeng Motor Corporation and Cummins Inc., established in 1996. The 4B3.9 engine is widely used in various applications, including diesel generators, construction machinery, and more. This guide will delve into its technical features, types, and applications, providing a thorough understanding of this powerful engine.
Technical Features of the Dongfeng Cummins 4B3.9 Engine
The 4B3.9 engine is known for its robust design and efficient performance. Below is a comparison table highlighting its key technical specifications:
| Feature | Specification |
|---|---|
| Engine Type | In-line, 4 Cylinder, 4 Cycle |
| Bore x Stroke | 102 x 120 mm |
| Displacement | 3.9 litres |
| Compression Ratio | 16.5:1 |
| Rated Speed | 1500 r/min |
| Rated Power | 24 kW |
| Standby Power | 27 kW |
| Genset Matching Power | 20 kW (prime) |
| Fuel Injection Pump | AD injection pump |
| Governor | Electronic and Mechanical |
| Lubricant Capacity | 11 litres |
| Coolant Capacity | 8 litres |
| Net Weight | 300 kg |
| Overall Dimensions (L x W x H) | 765 x 582 x 908 mm |
The engine’s design incorporates advanced features such as an electronic governor, a forced water cooling cycle, and a high-efficiency turbocharger. These elements contribute to its reliability and performance in various operational conditions.
Types of Dongfeng Cummins 4B3.9 Engines
The 4B3.9 engine comes in different variants, each tailored for specific applications. Below is a comparison table of the different types of 4B3.9 engines:
| Engine Model | Application | Rated Power | Weight | Dimensions (L x W x H) |
|---|---|---|---|---|
| 4B3.9-G2 | Diesel Generator | 24 kW | 300 kg | 765 x 582 x 908 mm |
| 4B3.9 (Standard) | Construction Machinery | 93 kW | 352 kg | 777 x 627 x 906 mm |
| 4B3.9-G (Modified) | Heavy-duty Applications | 50 kW | 320 kg | 765 x 582 x 908 mm |
Each variant is designed to meet specific power requirements and operational needs, making the 4B3.9 engine versatile for various industries.
Applications of the Dongfeng Cummins 4B3.9 Engine
The 4B3.9 engine is widely used in several applications, including:
- Diesel Generators: The engine’s reliability and efficiency make it ideal for use in diesel generator sets, providing backup power in various settings.
- Construction Machinery: Its robust design allows it to power heavy machinery used in construction, ensuring high performance under demanding conditions.
- Agricultural Equipment: The engine is also utilized in agricultural machinery, contributing to efficient farming operations.
The engine’s adaptability to different applications is a testament to its engineering excellence.
Conclusion
The Dongfeng Cummins 4B3.9 diesel engine stands out as a reliable and efficient power source in various industries. Its technical features, combined with its versatility in applications, make it a preferred choice for many businesses. Whether used in diesel generators or construction machinery, the 4B3.9 engine continues to deliver exceptional performance.
For more information, you can visit the following domains: www.dieselgeneratortech.com, www.diytrade.com, www.cummins.com, and www.scribd.com.
FAQs
1. What is the displacement of the Dongfeng Cummins 4B3.9 engine?
The displacement of the Dongfeng Cummins 4B3.9 engine is 3.9 litres.
2. What is the rated power of the 4B3.9-G2 engine?
The rated power of the 4B3.9-G2 engine is 24 kW.
3. Can the 4B3.9 engine be used in construction machinery?
Yes, the 4B3.9 engine is widely used in construction machinery due to its robust design and high power output.
4. What type of fuel injection system does the 4B3.9 engine use?
The 4B3.9 engine uses an AD injection pump for fuel injection.
5. What is the weight of the 4B3.9-G2 engine?
The weight of the 4B3.9-G2 engine is 300 kg.