General data of Cummins 4B3.9-G2 Diesel Engine for Generator Set |
Engine Model |
Cummins 4B3.9-G2 |
Type |
4 cylinder in line |
Displacement |
3.9 L |
Bore&Stroke |
102×120 mm |
Dry Weight |
308 KG |
Dimension(L*W*H) |
867*544*998mm |
Center of gravity from front face of block |
373 mm |
Center of gravity above crankshaft centerline |
163 mm |
|
Performance Date of Cummins 4B3.9-G2 Diesel Engine for Generator Set |
Rated Output/Speed(1500rpm) |
24KW/32HP |
Standby Output/Speed(1500rpm) |
27KW/36HP |
Rated Output/Speed(1800rpm) |
30KW/40HP |
Standby Output/Speed(1800rpm) |
33KW/44HP |
Fuel Consumption/rated output(1500rpm) |
229 g/KW.h |
Fuel Consumption/standby output(1500rpm) |
227.664 g/KW.h |
Fuel Consumption/rated output(1800rpm) |
238 g/KW.h |
Fuel Consumption/standby output(1800rpm) |
226 g/KW.h |
|
Technical data of Cummins 4B3.9-G2 Diesel Engine for Generator Set |
Aspiration |
Naturally Aspirated |
Fuel System |
BYC A/Electronic Governor |
Governor Regulation |
≤5% |
Coolant capacity-engine only |
7.2 litre |
Mimimum Lubricant Capacity(pan+filter) |
10.9 |
Idle speed |
950-1050 RPM |
Frictional loss power/1500rpm |
8.2 KW |
Frictional loss power/1800rpm |
11.9 KW |
Compression ratio |
18.0:1 |
Piston Speed/1500rpm |
6.0 m/sec |
Piston Speed/1800rpm |
7.2 m/sec |
Firing Order |
1-3-4-2 |