Products
Reliability development in strict accordance with FEV's mechanical development programs
Passed the road adaptability test of about 3 million km (including high-temperature test, alpine-cold test and plateau test) and the rigorous reliability bench test of about 30,000 hours
Application of a four-valve structure and Yuchai's patented combustion technology, effectively reducing fuel consumption
Use of a cylinder head with a low swirl ratio, improving the charge efficiency and flow coefficient, thus creating favorable conditions for in-cylinder combustion of the engine and improving the performance
Use of a piston with a high compression ratio to achieve full fuel mixing in the cylinder, ensuring good combustion efficiency and improving the performance
Low-inertia turbocharger, achieving higher torque at low speed; low inertia and less power consumption, reducing the fuel consumption
Economical fuel consumption mainly occurring in the medium and low speed range, making the engine more suitable for the operating road conditions of buses
Use of high-precision gears, effectively controlling the gear clearance within a reasonable range and reducing noise
Double balance shaft design, reducing the engine vibration, and therefore effectively reducing the vehicle vibration and noise
Application of a strengthened structure for such castings as gear chamber and engine block, reducing vibration
Application of pilot injection control, intelligent idle speed control and other electronic control technologies, effectively reducing engine vibration and noise
|
Product Series |
Model Series |
Displacement (L) |
Bore × Stroke |
Number of Valves per Cylinder |
Emissions |
Power (kw/rpm) |
Torque (N.m/rpm) |
Fuel System |
Exhaust Aftertreatment |
Dry Weight (kg) |
Oil Change Cycle |
B10 Service Life (10,000 km) |
|
YC4G-30 |
YC4G180-30 |
5.2 |
112×132 |
4 |
Euro III |
132/2300 |
660/≤1400 |
BOSCH high pressure common rail system |
No |
510 |
20,000 (standard) |
50 |
|
YC4G200-30 |
147/2200 |
720/≤1400 |
||||||||||
|
YC4G220-30 |
162/2200 |
840/≤1400 |
||||||||||
|
YC4G-50 |
YC4G180-50 |
Euro Ⅴ |
132/2300 |
660/1100~1500 |
SCR |
|||||||
|
YC4G190-50 |
140/2300 |
660/1100~1500 |
||||||||||
|
YC4G200-50 |
147/2200 |
720/1100~1500 |
||||||||||
|
YC4G220-50 |
162/2200 |
780/1100~1500 |
Large displacement, high gradeability and high efficiency
Bosch high pressure common rail (HPCR) fuel injection system with the injection pressure up to 1,600 bar, achieving multiple injections and accurate control
High-strength alloy cast iron cylinder head
General engine block + independent crankcase
Long B10 service life design, which can be more than 500,000 km
Reduction soft meshing starter, ensuring smooth start
A framed engine body structure, ensuring good rigidity and small vibration
Damping gear
Reliability development in strict accordance with FEV's mechanical development programs
Passed the road adaptability test of about 3 million km (including high-temperature test, alpine-cold test and plateau test) and the rigorous reliability bench test of about 30,000 hours
Application of a four-valve structure and Yuchai's patented combustion technology, effectively reducing fuel consumption
Use of a cylinder head with a low swirl ratio, improving the charge efficiency and flow coefficient, thus creating favorable conditions for in-cylinder combustion of the engine and improving the performance
Use of a piston with a high compression ratio to achieve full fuel mixing in the cylinder, ensuring good combustion efficiency and improving the performance
Low-inertia turbocharger, achieving higher torque at low speed; low inertia and less power consumption, reducing the fuel consumption
Economical fuel consumption mainly occurring in the medium and low speed range, making the engine more suitable for the operating road conditions of buses
Use of high-precision gears, effectively controlling the gear clearance within a reasonable range and reducing noise
Double balance shaft design, reducing the engine vibration, and therefore effectively reducing the vehicle vibration and noise
Application of a strengthened structure for such castings as gear chamber and engine block, reducing vibration
Application of pilot injection control, intelligent idle speed control and other electronic control technologies, effectively reducing engine vibration and noise