1．High speed,direct injection,power vacuum,BQ pump. | |
2．Optimal combustion system,the torque large,horsepower more powerful,low fuel consumption. | |
3．Automobile engine technology,low noise,small vibration. | |
4．Green cleaner invironmental protection. | |
5．Reliability,low failure rate. |
| Model | SD490 | SD490(upgrades) | SD490Z | SD490ZL | SD490 National III |
| Type | vertical in line,water-cooling,4-stroke | vertical in line,water-cooling,4-stroke | vertical in line, water-cooling,4-stroke,turbocharged aspiration |
vertical in line, water-cooling,4-stroke,Turbocharged and intercooled |
vertical in line, water-cooling,4-stroke,Turbocharged and intercooled |
| Firing sequence | 1-3-4-2 | 1-3-4-2 | 1-3-4-2 | 1-3-4-2 | 1-3-4-2 |
| Num ofCylinders-Bore*Stroke （mm） | 4-90×100 | 4-90×100 | 4-90×100 | 4-90×100 | 4-90×100 |
| TotalDisplacement L | 2.545 | 2.545 | 2.545 | 2.545 | 2.545 |
| Rate power/speed kW/r/min | 47/3200 | 50/3200 | 55/3200 | 60/3200 | 70/3200 |
| Max.torque N.m/speed kW/r/min | 150/2000～2200 | 165/2000～2200 | 184/2200 | 211/2200 | 245/2000～2200 |
| Characteristics fuel consumption g/(kW·h) | ≤235 | ≤238 | ≤220 | ≤220 | ≤210 |
| Specific lube oil consumption % | ≤0.8 | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.1 |
| Idle speed r/min | 800±50 | 800±50 | 800±50 | 800±50 | 750±50 |
| Full load bosch （bosch） | ≤3.5 | ≤3.5 | ≤3.0 | ≤3.0 | ≤1.775 |
| Speed up free bosch （bosch） | ≤3.5 | ≤3.5 | ≤3.5 | ≤3.5 | ≤2.76 |
| Start method | Started by electricity | Started by electricity | Started by electricity |
Started by electricity |
Started by electricity |
| Exhaust emission targets | Ⅱ | Ⅱ | Ⅱ | Ⅱ | Ⅲ |
| Diemension (mm) | 693×531×666 | 693×531×666 | 698×572×666 | 698×572×666 | 698×572×666 |
| Net weight (kg) | ≤230 | ≤230 | ≤230 | ≤270 Not include medium cool machine | ≤270 |