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1)The development of product is carried out with rigorous mechanical engineering development accreditation standards, durability bench test accumulated for 20000 hours.
2)A cylinder head is respectively bolted to the top of each bank of cylinder for ease of maintenance and repair; Cylinder head bolts are evenly spaced and positioned, which is better able to withstand forces evenly.
3)Valve timing mechanism, camshaft is placed in the upper part of cylinder block, short and thick push rod and roller tappet, so as to achieve higher reliability.
4)Advanced equipment and quality control method for casting to assembly, ensure higher quality.
1)Four-valve technology increases the flow areas of air by a wide margin, so as to realize better atomization condition and more intense combustion.
2)P pump and P nozzle are adopted to achieve higher injection pressure and more powerful working capacity, injector is matched with combustion chamber more rationally, contributing to better mixture and atomization condition
3) Mechanical losses are reduced dramatically more than 15%, and less air pumping losses and consumption.
4)Fuel consumption is reduced by 10-15% compared with engines of same power.
1)Four-valve technology reduces effectively intake and exhaust noises；
2)Rear positioned gear chamber and advanced point-line gear-meshing technology are adopted to lower mechanical noise of transmission system in further.
| Model | YC6T540C | YC6T480C | YC6T450C | YC6T490C |
| Type | Vertical, in-line, water-cooled, four-stroke | |||
| Intake way | Turbo-charged& inter-cooled | |||
| No. of cylinders - Bore × Stroke（mm） | 6-145×165 | |||
| Displacement(L) | 16.35 | |||
| Compression ratio | 15．5:1 | |||
| Continuous power/speed（kW（Ps）/r/min） | 396 -540 /1800 | 352 -480 /1800 | 330 -450 /1500 | 360 -490 /1500 |
| One-hour power/speed （kW（Ps）/r/min） | 435.6 -590 /1858 | 387.2 -530 /1858 | 363 -495 /1500 | 396 -540 /1500 |
| Min.specific fuel consumption（g/kW•h） | ≤195 | |||
| Specific oil consumption（g/kW•h） | ≤0.5 | |||
| Engine oil capacity(L) | 52 | |||
| Min.steady working speed（r/min） | ≤810 | / | ||
| Crankshaft rotation direction (see from power output end) | Anticlockwise | |||
| Starting way | Electrical (Gas start is optional) | |||
| Net weight（kg） | 1980 | |||
| Overall dimensions (LxWxH)(mm) | 2121×1093×1481 | 2021×1093×996 | ||
| Matched reduction gearbox or Adapted for marine gen-set | 300、J300、D300，etc | 280kW | 300kW | |
| Certificate | ZC、CCS、EIAPP、国I | |||
