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It is the first four-valve high-power engine jointly designed by Yuchai and FEV of Germany, integrating the advanced four-valve technology, wet cylinder liner intermediate supporting technology and lightweight manufacturing technology in Europe.
High low-speed torque, with the maximum torque of 1,400 N.m
Stronger bearing capacity, faster speed and higher efficiency under the same operating conditions
Taking in the essence of European lightweight design technology, setting a model of lightweight engine for road buses and heavy trucks
Compact structure, achieving the smallest volume and the lightest weight compared with other engines with the same power
The first four-valve engine in China, featuring refined, mature and reliable technology, and outstanding fuel-saving measures
Wide economical fuel consumption range (with the corresponding speed range of 1,100~1,700 r/min)
Designed and tested according to the expected service life of 800,000 km; reliability development according to FEV's mechanical development programs
International advanced production line and advanced technology, ensuring excellent product quality
Integral cylinder head + wet cylinder liner, prolonging the service life
Application of in-cylinder brake to protect user safety, especially when vehicles run downhill
Comprehensive application of structural noise reduction and combustion noise reduction technologies, with the noise measured in bench test ≤95 dB(A)
Intelligent engine with low vibration and low noise
Application of an integral cylinder head, reducing noise during operation
| Product Series | 6L-30 | 6L-33 | 6L-50 | ||||||||||
| Model Series | YC6L260-30 | YC6L280-30 | YC6L290-30 | YC6L310-30 | YC6L330-30 | YC6L270-33 | YC6L290-33 | YC6L310-33 | YC6L340-33 | YC6L280-50 | YC6L310-50 | YC6L330-50 | YC6L350-50 |
| Displacement (L) | 8.424 | 8.42 | 8.424 | ||||||||||
| Bore × Stroke | 113×140 | 113×140 | 113×140 | ||||||||||
| Number of Valves per Cylinder | 4 | 4 | 4 | ||||||||||
| Emissions | Euro III | Euro II | Euro Ⅴ | ||||||||||
| Power (kw/rpm) | 191/2200 | 206/2200 | 213/2200 | 228/2200 | 243/2200 | 199/2200 | 213/2200 | 228/2200 | 250/2200 | 206/2200 | 228/2200 | 243/2200 | 257/2200 |
| Torque (N.m/rpm) | 1030/1200~1600 | 1100/1200~1600 | 1100/1200~1600 | 1150/1200~1600 | 1280/1200~1600 | 1050/1200~1600 | 1100/1200~1600 | 1150/1200~1600 | 1280/1200~1600 | 1100/1200~1700 | 1150/1200~1700 | 1280/1200~1700 | 140/1200~1700 |
| Fuel System | BOSCH high pressure common rail system | In-line mechanical pump | BOSCH high pressure common rail system | ||||||||||
| Exhaust Aftertreatment | No | No | SCR | ||||||||||
| Dry Weight (kg) | 830 | ||||||||||||
| Oil Change Cycle | 20,000 (standard) | ||||||||||||
| B10 Service Life (10,000 km) | 80 | ||||||||||||
