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Weichai Wp12ng380e40 Natural gas engine for Shacman F3000 Heavy-Duty Tractor Truck

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  • WP12NG380E40

  • weichai

发动机海报

The Weichai WP12NG380E40 is a high-performance, 6-cylinder, in-line, four-stroke natural gas engine renowned for its exceptional fuel efficiency, reliable power, and low emissions . With a substantial 11.6-liter displacement and featuring turbocharged and intercooled aspiration , this engine is engineered to deliver consistent and robust performance for heavy-duty vehicles. Its advanced design, based on the mature WP12 platform and enhanced with specific natural gas technologies, makes it an ideal and reliable power source for demanding transportation applications .

 Key Technical Specifications

For a quick overview, here are the core specifications of the WP12NG380E40 engine:

Parameter Specification
Engine Model Weichai WP12NG380E40
Configuration In-line, 6-Cylinder, 4-Stroke, Water-Cooled 
Aspiration Turbocharged and Intercooled 
Fuel Type CNG/LNG 
Displacement 11.596 L 
Bore × Stroke 126 mm × 155 mm 
Rated Power/Speed 280 kW (380 HP) @ 2200 rpm 
Max. Torque/Speed 1730 N.m @ 1200-1500 rpm 
Compression Ratio 11.6 ± 0.5:1 
Emission Standard Euro V  (Note: Some sources state Euro III or IV for specific applications )
Weight (Net Dry) Approx. 870 kg - 1000 kg 
Note: Specifications such as emission standards and power ratings can vary depending on the specific application configuration and regional adaptations .

 Primary Applications & Equipment

The Weichai WP12NG380E40 engine is built to be the powerhouse behind a range of heavy-duty natural gas vehicles, including:

  • Heavy-Duty Tractor Trucks: It is a key power source for 6x4 tractors like the Shacman F3000 and DeLong F3000 series, designed for short and medium-range haulage .

  • Dump Trucks: This engine is also applied in heavy-duty dump trucks, providing the necessary torque for challenging loads and terrains .

  • Large Buses: Its clean-burning characteristics and reliable power make it suitable for large buses .

 Core Technologies & Key Features

  • Advanced Combustion System: The engine utilizes a single-point injection combustion system and an electronically controlled high-pressure common-rail fuel system, ensuring precise fuel delivery, optimized combustion, and superior fuel economy .

  • Proven Engine Platform: Developed based on the mature WP12 diesel engine base, it incorporates specific enhancements for gas operation, including redesigned cooling for the piston, turbocharger, and valve seat rings, ensuring high reliability .

  • Turbocharged and Intercooled Aspiration: The turbocharged and intercooled system forces more dense air into the cylinders, significantly boosting power output and torque while optimizing combustion for improved efficiency and performance .

  • Low Emissions Compliance: The engine is designed to meet stringent emission standards, such as Euro V, making it an environmentally responsible choice for modern fleets .





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