YC4D series diesel engine is a new type engine co-developed by YUCHAI and FEV company,
Germany, which is featured by lower emission, lower fuel & oil consumption,
lower noise, higher reliability, lower price and better upgrading potential.
As a result of structural modal analysis, major parts & components, such as
intake system & fuel combustion system, are designed in an optimized way and
featured by better dynamic characteristics, excellent economy, higher reliability,
longer service life, easier operation & maintenance.
Adopting the piston-cooling technique by spraying the oil, new type piston rings
and cylinder liner not only can meet requirements for engine performance & reliability,
but also effectively reduce oil consumption.
Complete separation of the fuel and gas by adopting technique of fuel-gas independent
return flow circuits and cyclone fuel-gas separation.
Effective reduction of piston blow-by by adopting the technique of pressure balanced
fuel-gas chamber in the crankcase.
Adopting special configuration of the China-made pump and turbocharger for cost
reduction together with meeting the requirement for emission and bigger torque.
Improved reliability by rational matching of the vibration damper and effective
reduction of crankshaft¡¯s tensional vibration on the basis of its torsion characteristics.
Emission can be up to Euro-II & Euro-III standard.
Main Technical Parameters of YC4D Engines up to Euro-3
|
Model
|
YC4D120-20
|
YC4D130-20
|
YC4D140-20
|
YC4D120-30
|
YC4D130-30
|
YC4D140-30
|
|
Type
|
Vertical, in-line, water-cooled, 4 stroke, direct injection
|
Vertical, in-line, water-cooled, 4 stroke, Electronic control, direct injection
|
|
No. of Cylinders
|
4
|
|
Bore X Stroke £¨mm¡Á mm£©
|
108¡Á115
|
|
Displacement £¨ L£©
|
4.212
|
|
Intake way
|
Turbo-charging & inter-cooling
|
|
Rated power/speed £¨kW/r/min£©
|
90 /2800
|
96/2800
|
103/2800
|
90 /2800
|
96/2800
|
103/2800
|
|
Max. torque/speed(N.m/r/min)
|
350/1600
~1900
|
380/1700
~2000
|
420/1600
~1900
|
380/1400
~1800
|
420/1400
~1800
|
450/1400
~1800
|
|
Min. fuel consumption at full load (g/kW.h)
|
¡Ü205
|
|
Noise£¨ISO 3744£©dB(A)
|
¡Ü99
|
|
Emission (TAS)
|
Euro-II
|
Euro-III
|
|
Net mass£¨kg£©
|
380
|
|
Application
|
Low-tonnage medium-sized truck
|