| Company produc |
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Cummins marine engine |
 4BT,6BT,6CT,6LT
NT855,K19,K38,K50
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Cummins industrial engine |
4BT,6BT,6CT,6LT
M11,NT855,K19,K38,K50
QSB,QSD,ISL,ISM....
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Cummins vehicle engine |
4BT,6BT,6CT,6LT
M11,NT855,K19,K38,K50
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Cummins pump engine |
4BT,6BT,6CT,6LT
M11,NT855,K19,K38,K50
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Cummins generator engine |
4BT,6BT,6CT,6LT
M11,NT855,K19,K38,K50
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DEUTZ industrial engine |
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DEUTZ marine engine |
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Yuchai diesel engine |
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Detailed information |
| Cummins 4B3.9-G2 Engine for Generator Set |
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 The product description
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| 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 |
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| 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 |
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| 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 | |
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Cummins 4BT3.9-G1 Engine for Generator Set
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