WP10NG 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 |
| WP10G220E31NG | 9.726 | 4 | 162/2200 | 950/1400-1600 | 204 | 5T loaders | |
| WP10G220E33NG | 162/2000 | 950/1300-1500 | 204 | 5T loaders | |||
| WP10G260E31NG | 191/2200 | 1060/1200-1400 | 202 | 6T loaders | |||
| WP10NG300E52 | 220/1900 | 1400/1400-1600 | 185 | Lean combustion + DOC | 11–12M passenger buses、14–18M public buses | ||
| WP10NG336E51 | 247/1900 | 1450/1400-1600 | 11–12M passenger buses、14–18M public buses、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) |
Suitable models |
| WP10G220E31NG | 9.726 | 4 | 162/2200 | 950/1400-1600 | 5T loader |
| WP10G220E33NG | 9.726 | 4 | 162/2000 | 950/1300-1500 | 5T loader |
| WP10G260E31NG | 9.726 | 4 | 191/2200 | 1060/1200-1400 | 6T loader |
Product advantages
Power performance
- The new-type ECU is used and thus the maximum torque is increased by 7%.
- The four-valve structure effectively significantly improves output torque at low speed and maximum torque, as well as responsiveness during acceleration and start-up.
Economy
- The precise control of the new-type ECU increases economy by 4%.
- 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.
- If the rear axle of small speed ratio is used, fuel consumption of the vehicle will be reduced further.
Reliability
- The new-type ECU has a good resistance against heat, vibration and electromagnetic interference, and is directly installed on the engine.
WP10NG series engine
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