EURO IV 4DX23-140E4

The 4DX23-140E4 stands as a testament to modern diesel engineering excellence, featuring a sophisticated four-cylinder in-line configuration with direct injection technology. This powerhouse delivers impressive performance through its turbocharged and intercooled design, combined with cutting-edge common rail fuel injection that ensures optimal combustion efficiency and reduced emissions.

Technical Excellence

Core Specifications:

• Displacement: 3.86 litres of precisely engineered combustion volume
• Power Output: 106kW rated power at 2800 rpm with 103kW net power delivery
• Torque Performance: 450 Nm maximum torque between 1800-2000 rpm
• Cylinder Configuration: 102mm bore × 118mm stroke with 2 valves per cylinder

The engine’s architecture reflects decades of refinement in diesel technology. The common rail system provides exceptional injection timing flexibility and precise fuel quantity control, resulting in superior combustion efficiency compared to traditional mechanical injection systems.

Advanced Fuel Technology

The electronically controlled common rail system stores fuel at variable pressure in a cylinder connected to individual injectors via dedicated pipes. This sophisticated arrangement allows the fuel injectors to work in parallel with the fuel pump, providing precise control over injection timing and fuel quantity. The high-pressure fuel delivery enables multiple injections per combustion cycle, creating smoother and quieter engine operation whilst maximising power output and minimising fuel consumption.

Environmental Compliance & Efficiency

Meeting stringent EURO IV emission standards, this engine incorporates either SCR (Selective Catalytic Reduction) or EGR (Exhaust Gas Recirculation) technology to achieve exceptional environmental performance. Euro 4 compliance requires diesel engines to emit no more than 0.25g/km of NOx gases, a standard this engine comfortably meets.

Performance Metrics:

• Fuel Efficiency: ≤205 g/kW·h consumption rate
• Emissions: Smoke density ≤0.5 m⁻¹
• Noise Levels: ≤95.5 dB(A) operational sound

Manufacturing Heritage

FAW Jiefang Automotive Co., Ltd. Wuxi Diesel Engine Works, established in 1943, brings over 70 years of diesel engine manufacturing expertise to this product. The facility spans 670,000 square metres with over 3,500 skilled employees and maintains an annual production capacity of 600,000 diesel engines.

FAWDE has developed independent R&D capabilities including five technology platforms covering energy-saving and environmental protection technology. The company holds the distinction of being the first enterprise to successfully develop four-valve diesel engines and electronic-controlled common-rail diesel engines in China.

Physical Specifications

• Dimensions: 795mm × 680mm × 825mm (L×W×H)
• Weight: 380kg net mass (excluding aftertreatment system)

The compact design facilitates straightforward installation whilst maintaining robust construction suitable for demanding industrial applications.

Applications & Versatility

The 4DX23 series demonstrates exceptional versatility across heavy-duty trucks, buses, construction machinery, and generator sets. Its reliable power delivery and efficient fuel consumption make it particularly well-suited for:

• Commercial vehicle applications requiring sustained high-performance operation
• Industrial generator sets demanding consistent power output
• Construction equipment where dependable torque delivery is essential
• Marine applications where space efficiency and reliability are paramount

Engineering Advantages

The common rail technology eliminates the dependency on engine speed for injection pressure, ensuring optimal fuel atomisation across all operating conditions. This translates to improved cold-start performance, reduced engine noise, and enhanced durability compared to conventional injection systems.

The turbocharged intercooling system maximises air density entering the combustion chambers, enabling complete fuel combustion and contributing to the engine’s impressive power-to-displacement ratio whilst maintaining excellent fuel economy.