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WP12NG 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
WP12NG350E52 11.6 4 257/1900 1700/1200-1500 185 Single point injection + oxidation/catalysis 12–14M passenger buses、14–18M public buses
WP12NG380E51 11.6 4 280/1900 1700/1200-1500 185
Single point injection + oxidation/catalysis
12–14M passenger buses、14–18M public buses
WP12NG400E50 11.6 4 294/1900 1730/1200-1500 185
Single point injection + oxidation/catalysis
12–14M passenger buses、14–18M public buses

Product advantages

Power performance

  • 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 rated speed is reduced to 1,900rpm, the absolute fuel consumption in bench test is reduced by 3%, ensuring a wider economic speed range; 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. 
  • Reliability

  • The new-type ECU has a good resistance against heat, vibration and electromagnetic interference, and is directly installed on the engine.
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    R & D

    20000 +
    Global R & D personnel
    5+10 
    R & D institutions in five countries, ten regions

    Engines

    • 5,000,000 units
    • 22-10000Ps
    • 200 million kilowatts
    • Application for all markets