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WEICHAI ENGINES

WP7NG series bus engine

Weichai bus engines, with the displacement ranging from 2.3L to 12L and the power ranging from 88kW to 338kW meet Euro V, Euro VI and other emission standards, and are applicable to various buses with a length greater than 5m such as school buses, passenger buses, private buses, touring buses, public buses, hybrid electric buses, and special buses. These new-generation power products (RA/WP2.3N/WP3N/WP4.1N/WP4.6N) are applicable to rural public buses, minibuses, long-nose school buses, high-end MPVs, European light buses, and characterized by high reliability, strong power, fuel saving and environmental protection.

WP7NG series bus engine

Product parameters

Mode 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 Single point injection + oxidation/catalysis 9–11M passenger buses、10-12M public buses
WP7NG260E51 7.47 4 191/2100 1000/1300-1500 188
Single point injection + oxidation/catalysis
9–11M passenger buses、10-12M public buses
WP7NG280E51 7.47 4 206/2100 1100/1300-1500 188
Single point injection + oxidation/catalysis
9–11M passenger buses、10-12M public buses
WP7NG210E61 7.47 4 156/2100 950/1100-1500 195
Equivalent combustion + EGR + TWC
9–11M passenger buses、10-12M public buses
WP7NG240E61 7.47 4 177/2100 1050/1100-1500 195
Equivalent combustion + EGR + TWC
9–11M passenger buses、10-12M public buses
WP7NG270E61 7.47 4 199/2100 1150/1100-1500 195
Equivalent combustion + EGR + TWC
9–11M passenger buses、10-12M public buses

 

Product advantages

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).

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