YC6J Truck Series

YC6J series diesel engine is a new type product developed by YUCHAI through digestion & absorption of consultation results from FEV company, Germany. All the parts are three-dimensionally designed by using the UG software and the machine compactness is greatly improved. Engines up to Euro-III standard adopt the BOSCH electronic control high-pressure CR or EUP fuel injection technology.

Applying the computer software for performance analog calculation & combustion analysis so as to improve combustion conditions and make performance reach designed requirements completely.

Applying the finite element software for strict analysis of stressed deformation, as a result, major constructive design of the cylinder block, crankshaft, connecting rod and piston is made, characteristics of relevant parts & components are greatly improved, deformation is reduced to the minimum for meeting the requirement for stronger power and lower emission.

Adopting the platform checker technique for the cylinder liner synchronized with the international level.

Piston with internal oil cooling passages lowers the piston temperature and greatly improves itself in the working strength and reliability.

Adopting flexible design technique for the piston ring.

Adopting the upgraded HX40W turbocharger of Holset company featured by higher efficiency and longer service life.

Meeting the Euro-II, Euro-III and Euri-IV standard of emission.

Main Technical Parameters of YC6J Series Engines up to Euro-3

Model YC6J180-30 YC6J190-30 YC6J200-30 YC6J220-30 YC6J245-30 YC6J160-31 YC6J170-31 YC6J180-31 YC6J200-31 YC6J220-31
Type Vertical, in-line, water-cooled, 4 stroke, electronic control, direct injection
No. of Cylinders 6
Bore X Stroke£¨mm¡Á mm£© 105¡Á125
Displacement £¨ L£© 6.494
Intake way Turbo-charging & inter-cooling
Electronic control system High pressure & common rail EUP
Rated power/speed £¨kW/r/min£© 132/2500 140/2500 147/2500 162/2500 180/2500 118/2500 125/2500 132/2500 147/2500 162/2500
Max. torque/speed(N.m/r/min) 650/1200
~1700
700/1200
~1700
730/1200
~1700
800/1200
~1700
890/1200
~1700
550/1200
~1700
550/1200
~1700
590/1200
~1700
700/1200
~1700
760/1200
~1700
Min. fuel consumption at full load (g/kW.h) ¡Ü200
Noise£¨ISO 3744£©dB(A) ¡Ü99
Emission (TAS) Euro-III
Net mass£¨kg£© ¡Ü760
Application Medium-duty trucks

Main Technical Parameters of YC6J Series Engines up to Euro-2

Model YC6J140-21 YC6J160-21 YC6J170-21 YC6J180-21 YC6J190-20 YC6J210-20 YC6J230-20
Type Vertical, in-line, water-cooled, 4 stroke, direct injection
No. of Cylinders 6
Bore X Stroke £¨mm¡Á mm£© 105¡Á125
Displacement   £¨ L£© 6.494
Intake way Turbo-charging & inter-cooling
Rated power/speed £¨kW/r/min£© 105/2600 118/2600 125/2600 132/2600 140/2500 155/2500 170/2500
Max. torque/speed(N.m/r/min) 450/1400
~1700
520/1400
~1700
550/1400
~1700
590/1400
~1700
630/1400
~1700
710/1400
~1600
810/1400
~1700
Min. fuel consumption at full load (g/kW.h) ¡Ü200
Noise£¨ISO 3744£©dB(A) ¡Ü99
Emission (TAS) Euro-II
Net mass£¨kg£© 733
Application Medium-duty trucks
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