WP7NG series bus 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 |
| WP7NG240E51 | 7.47 | 4 | 177/2100 | 900/1300-1500 | 188 | Lean combustion + DOC | 9–11M passenger buses、 10-12M public buses、 Offset terminal tractors、Port tractors |
| WP7NG260E51 | 191/2100 | 1000/1300-1500 | |||||
| WP7NG280E51 | 206/2100 | 1100/1300-1500 | |||||
| WP7NG210E60 | 154/2100 | 950/1100-1500 | 195 | Equivalent combustion + EGR + TWC | 9–11M passenger buses、 10-12M public buses |
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| WP7NG240E60 | 176/2100 | 1050/1100-1500 | |||||
| WP7NG270E60 | 199/2100 | 1150/1100-1500 |
Product spectrum B
| model | Displacement ( L ) | Number of valves per cylinder | Rated power/speed (kW/rpm) |
Maximum torque/speed (N·m/rpm) |
External minimum fuel consumption (g/kW·h) |
Technical route | Suitable models |
| WP7NG210E61 | 7.47 | 4 | 156/2100 | 950/1100-1500 | 195 | Equivalent combustion + EGR + three-way catalytic converter | 9-11m passenger transport, 10-12m bus |
| WP7NG240E61 | 7.47 | 4 | 177/2100 | 1000/1100-1500 | 195 | Equivalent combustion + EGR + three-way catalytic converter | 9-11m passenger transport, 10-12m bus |
| WP7NG270E61 | 7.47 | 4 | 199/2100 | 1150/1100-1500 | 195 | Equivalent combustion + EGR + three-way catalytic converter | 9-11m passenger transport, 10-12m bus |
Product advantages
Emission standards
- China V and China VI, with advanced Bosch/Woodward electronic control system adopted.
Power performance
- Improved output torque at low speed and maximum torque and good responsiveness during acceleration and start-up meet the power requirement of the vehicle.
Economy
- The fuel economic zone shifts to the low speed range.
- Squish effect is strengthened and combustion speed is increased.
- The intelligent ignition coil increases ignition energy, reduces load cycle variation of low-speed part, and reduces fuel consumption.
Comfort
- Low vibration and low noise (2 dB lower than that of competing products).
WP7NG series bus engine
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