Model | NC493QC1 |
Type | Inline,water-cooled,four-stroke,supercharged |
Oil supply type | Oil supply type |
Emission Standards | European IGB 18352.1 |
Number of Cylinders | 4 |
Combustion type | Direct injection |
Cylinder bore*piston stroke (mm) | 93*102 |
Cylinder working volume (L) | 2.771 |
Compression ratio | 17.5 |
Cylinder compression pressure（200r/min）MPa | ≥2.0, and each cylinder pressure difference ≤0.2 |
Minimum fuel consumption rate at full load g/KW.h | 224 |
Maximum power/speed (KW/r/min) | 67.6/3600 |
Maximum torque/speed (N.m/r/min) | 204/2000±100 |
No-load maximum speed (r/min) | 4200±100 |
Idle speed (r/min) | 750±20 |
oil consumption rate（g/h） | 2000r/min, 4/4 load | ≤20 |
3600r/min, 4/4 load | ≤70 |
Dimensions: L*W*H | 742*601*768 |
Weight (kg) | 250 |
Cylinder working order | 1-3-4-2 |
valve phase | Intake valve open (before top dead center) | 24 |
Intake valve closed (after bottom dead center) | 55 |
Exhaust valve open (before bottom dead center) | 54 |
Exhaust valve closed (after top dead center) | 26 |
valve clearance | Intake valve (cold state) mm | 0.3 |
Exhaust valve (cold state) mm | 0.4 |
Starting method | Electric start |
cooling method | Closed, Water Cooled, Pressure, Circulation |
Lubrication method | pressure, splash compound |
Governor type | mechanical centrifugal |
Injector type | P type |
Injector opening pressure (MPa) | 18.1 |
Fuel injection timing | Before top dead center (degrees) | 6°±1° |
Crankshaft angle/Plunger lift | 0°CA/1.0 |
Exhaust temperature (°C) | ≤600 |
Cooling water outlet temperature | 85±5 |
Oil pressure (MPa) | Rated speed | ≥0.40 |
