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YC6G Series Diesel Engine 
 

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 ¨C Optimize engine performance and provide seamless integration with other components, advanced diagnostics, plus a complete set of programming options.
 
¡ñ 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.
¡ñ 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;
¡ñ 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-¢ò and Euro-¢ó
¡ñ Lower Noise
The average noise acoustic pressure of the whole machine at a distance of 1M is less than 97dB (A).
¡ñ Easy maintenance
Human-oriented design, higher interchangeability and better approachability.

Main Technical Parameters

Model
YC6G220-30
YC6G240-30
YC6G270-30
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)
162/2000
177/2200
199/2200
147/2000
170/2000
177/2200
199/2200
221/2200
Max. Torque/speed (N¡¤m/r/min)
890/1200-1500
950/1200-1500
1080/1400-1600
850/1300~1500
950/1300~1500
950/1400~1600
1080/1400~1600
1150/1400~1600
Min. fuel consumption at full load (g/kW.h)
¡Ü195
Emission (TAS)
Euro-¢ó
Euro-¢ò
Noise level (ISO 3744)   dB(A)
¡Ü97
Net Mass£¨kg£©
700
Application
9.3-12 meters buses
10 meters buses
11 meters buses
9.3-12 meters buses
11-12 meters buses

 
 
Copyright ? 2008 Yuchai Group Co., Ltd. All rights reserved.  
hzcms publishdate:2008/07/02 16:21:59