YC6A Bus Series

Features for Yuchai YC6A Series Bus Diesel Engine

  • Higher reliability:
    • Can bear the pressure up to 150 bar;
    • Cylinder head with low vortex & low resistance airflow passages ensuring stable performance;
    • Reinforced & optimized skirt of the cylinder block, smaller deformation & higher stability of performance;
    • Wet type cylinder liner with higher body & supported from the bottom ensuring higher reliability & better maintainability;
    • Adopting the technique of piston forced cooling;
    • Adopting the technique of cylinder block water jacket with higher top ring;
    • Adopting the pressure balancing technique of fuel-gas chamber of the crankcase;
    • Built-in oil cooler ensuring higher cooling efficiency;
    • Adopting Holset (Wuxi) new HX40W turbocharger with the air relief valve featured by better dynamic characteristic.
  • Full-Authority Electronic Controls : Optimize engine performance and provide seamless integration with other components, advanced diagnostics, plus a complete set of programming options.
  • Stronger power: Max. rated power 280 horse powers
  • Bigger torque: Max. torque 1100 N.m
  • Lower emission: Up to Euro-II and Euro-III standard
  • Lower fuel & oil consumption: Wider range of fuel consumption for outer characteristic and Min. fuel consumption at full load is equal to or less than 196g/kW.h
  • Lower Noise: The average noise level at a distance of 1M is equal to or less than 97dB (A).
  • Better characteristic at low temperatures: It is easily started without the cold starting device at a temperature of -18¡æ.

Main Technical Parameters for Yuchai YC6A Series Bus Diesel Engine

Model YC6A240-20 YC6A260-20 YC6A280-20 YC6A240-30 YC6A260-30 YC6A280-30
Type Vertical, in-line, water-cooled, 4 stroke, , direct injection
No. of Cylinders 6
Displacement £¨ L£© 7.255
Intake way Turbo-charging & inter-cooling
Rated power/speed£¨ kW/r/min£© 177/2300 191/2300 206/2200 177/2300 191/2300 206/2200
Max. torque/speed (N.m/r/min) 890/1400~1600 960/1400~1600 1100/1400~1600 900/1400~1600 1000/1400~1600 1100/1400~1600
Min. fuel consumption at full load (g/kW.h) ¡Ü196
Noise £¨ISO 3744£©dB(A) ¡Ü97
Emission (TAS) Euro-II, Euro-III
Net mass£¨kg£© 803
Application 9-11 meters buses
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