China Yuchai - YC6G Series 220-270 HP CR Diesel Engine for vehicles

Features And Benefits

Higher reliability:
The integrated cylinder head and cylinder bores using the platform deep checker technique, annular combustion chamber & piston with internal cooling passages, adopting totally metal gasket makes compression more even and cylinder bore deformation smaller, new TBP4 & GT turbochargers of Honeywell (Shanghai), USA, higher performance, lower fuel consumption, lower emission, quicker response and higher reliability;

Full-Authority Electronic Controls:
Optimize engine performance and provide seamless integration with other components, advanced diagnostics, plus a complete set of programming options.
 
Higher strength:
Can bear the cylinder pressure of 150 bar, thickened bottom plate of the cylinder block, shortened length of the water jacket, optimized coolant flow direction and improved cooling capacity, thickened cylinder bore wall, strengthened cylinder block rigidity and reduced deformation possibility, added auxiliary oil passages to improve the piston cooling conditions.
 
Longer service life:
--Adopting the piston with internal cooling passages lowers the piston surface working temperature and extends the service life of the piston and piston rings£»adopting the silicon oil vibration damper which brings better and more stable damping capacity and more effectively protect key components such as crankshaft, camshaft etc.;
--Newly designed grooved bearing shells which have remarkable effects on reduction of crankshaft wear and prevention of bearing shells and crankshaft from burning and seizing;
 
Lower fuel & oil consumption:
Min. fuel consumption at full load is equal to or less than 195g/kW.h.
 
Lower emission:
Meeting the emission standard of Euro II and Euro III
 
Lower Noise:
The average noise acoustic pressure of the whole machine at a distance of 1M is less than 97dB (A).
 
Easy maintenance:
Human-oriented design, higher interchangeability and better approachability.

Main Technical Parameters

Model	YC6G220-30	YC6G240-30	YC6G270-30
Type	Vertical, in-line, water-cooled, 4-stroke, direct injection
No. of cylinders	6
Displacement ( L)	7.8
Intake way	Turbo-charging & inter-cooling
Rated power/speed ( kW/r/min)	162/2000	177/2200	199/2200
Max. Torque/speed (N.m/r/min)	890/1200-1500	950/1200-1500	1080/1400-1600
Min. fuel consumption at full load (g/kW.h)	<= 195
Emission (TAS)	Euro III
Noise level (ISO 3744)   dB(A)	<= 97
Net Mass (kg)	700
Application	9.3-12 meters buses

Model	YC6G200-20	YC6G230-20	YC6G240-20		YC6G270-20		YC6G300-20
Type	Vertical, in-line, water-cooled, 4-stroke, direct injection
No. of cylinders	6
Displacement ( L)	7.8
Intake way	Turbo-charging & inter-cooling
Rated power/speed ( kW/r/min)	147/2000	170/2000	177/2200		199/2200		221/2200
Max. Torque/speed (N.m/r/min)	850/1300~1500	950/1300~1500	950/1400~1600		1080/1400~1600		1150/1400~1600
Min. fuel consumption at full load (g/kW.h)	<= 195
Emission (TAS)	Euro II
Noise level (ISO 3744)   dB(A)	<= 97
Net Mass (kg)	700
Application	10 meters buses	11 meters buses		9.3-12 meters buses		11-12 meters buses