WP13NG series engine
Weichai natural gas engines include WP4.1NG、WP5NG、WP7NG、WP10NG、WP12NG、WP13NG (Product line up from 74kW to 480kW)，which meet the requirements of China state five emission, and China state six emission.They are widely used in a lot of industry areas such as 6-18m bus, Various trucks, engineering machinery, special vehicles,ship power,and other industries, with high reliability,strong power, energy saving and environmental protection.
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Product portfolio A
| Model | Displacement (L) |
Number of valves per cylinder | Rated power/speed (kW/rpm) |
Maximum torque/speed (N.m/rpm) |
Min. fuel consumption on external characteristic curve (g/kW·h) |
Technical route | Applicable model |
| WP13NG327E32 | 12.54 | 4 | 240/2100 | 1708/1200-1400 | 195 | Lean combustion + DOC | 7T loaders |
| WP13NG360E32 | 12.54 | 4 | 265/2100 | 1850/1200-1400 | 195 | Lean combustion + DOC | 7T loaders |
| WP13NG430E52 | 12.54 | 4 | 316/1900 | 2000/1100-1400 | 185 | Lean combustion + DOC | Tractors、dump trucks |
Product spectrum B
| model | Displacement (L) |
Number of valves per cylinder | Rated power/speed (kW/rpm) | Maximum torque/speed (N·m/rpm) | Technical route | Suitable models |
| WP13NG400E61 | 12.54 | 4 | 294/1900 | 2100/1100～1300 | Equivalent + EGR + three-way catalytic | Suitable for medium and short distance coal transport tractors, urban construction slag dump trucks, highway heavy load dump trucks |
| WP13NG430E61 | 12.54 | 4 | 316/1900 | 2200/1100～1300 | Equivalent + EGR + three-way catalytic | Suitable for medium and short distance coal transport tractors, urban construction slag dump trucks, highway heavy load dump trucks |
| WP13NG460E61 | 12.54 | 4 | 338/1900 | 2300/1100～1300 | Equivalent + EGR + three-way catalytic | Suitable for medium and short distance coal transport tractors, urban construction slag dump trucks, highway heavy load dump trucks |
Product advantages
Power performance
- Coefficient of torque reserve > 30%, high output torque at low speed.
- The engine is specially developed according to the operating conditions of construction machinery, and its power performance is equivalent to that of diesel engine.
Economy
- The electronically controlled single point injection system guarantees precise control and low fuel consumption.
- The four-valve structure and the high-efficiency turbocharger guarantee high intake efficiency and full combustion.
Reliability
- The latest OH6 fuel system is used, which ensures high reliability.
- The ignition coil is integrated with the spark plug, such that the high voltage line is omitted, and the reduction of conductivity of the high voltage line on rainy days can be avoided accordingly.
- Knock monitoring is provided, such that faults such as piston burnout caused by fuel can be avoided.
Comfort
- Mild combustion ensures low engine vibration and low noise.
- Its structure is identical with that of diesel engine, as well as the advanced technologies adopted on them.
Adaptability
- The connection method of gas engine to the vehicle is identical with that of diesel engine, and the parts are highly universal.
- The electronic control unit is arranged on the engine, facilitating the layout of wire harnesses.
WP13NG series engine
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