CSI Ningdong DF340 Series Marine Dual Fuel Engine (2206kW – 4800kW) / (3000Ps – 6528Ps)
Standard and Optional Parts
Cooler: shell-and-tube heat exchanger (standard), plate heat exchanger (optional)
Turning gear: manual (standard), motor-driven (optional)
Governor: hydraulic governor (standard), E-H governor, electronic governor (optional)
Silencer: optional
Exhaust expansion joint: optional
Parameters Table
| Item | Unit | Data |
| Type | Four-stroke, water-cooled, in-line, turbocharged and intercooled, direct injection | |
| Bore×Stroke | mm | 340×450 |
| Number of Cylinders | 8 | |
| Displacement | L | 326.85 |
| Compression Ratio | 13.5 : 1 | |
| Speed | rpm | 500 -650 |
| SFOC | g/kW·h | ≤182+5% (during fuel mode) |
| SFGC | KJ/kW·h | ≤8600 (at rated power) |
| SLOC | g/kW·h | ≤0.6+20% |
| Gas Supply Pressure | bar | 4 – 6 |
| Substitution Rate | 70 – 85% (at 50% – 100% rated power) | |
| Starting Mode | Compressed-air motor | |
| Direction of Rotation | Starboard engine: clockwise（aft. end）
Port engine: anticlockwise（aft. end） |
|
| Minimum Height for Lifting Piston | mm | 2400 (above crankshaft centerline) |
| Outline Dimensions
Length×Width ×Height |
mm | 6 cylinders: 5410×2540×4210
8 cylinders: 6830×2540×4210 |
| Net Weight | Kg | 40000 / 52000 |
Model Portfolio Table
| Series | Model | MCR
kW/Ps |
Speed rpm | MEP Mpa | NOX Emission Standard (with SCR system) | |
| Starboard | Port | |||||
|
DF6340
|
DF6340ZC | DF6340ZC1 | 3600/4896 | 650 | 2.54 | IMO Tier III |
| DF6340ZC2 | DF6340ZC3 | 3552/4831 | 650 | 2.51 | IMO Tier III | |
| DF6340ZC4 | DF6340ZC5 | 3310/4502 | 620 | 2.45 | IMO Tier III | |
| DF6340ZC8 | DF6340ZC9 | 3236/4401 | 600 | 2.48 | IMO Tier III | |
| DF6340ZC12 | DF6340ZC13 | 3163/4302 | 600 | 2.42 | IMO Tier III | |
| DF6340ZC18 | DF6340ZC19 | 2970/4039 | 620 | 2.20 | IMO Tier III | |
| DF6340ZC20 | DF6340ZC21 | 2795/3801 | 600 | 2.14 | IMO Tier III | |
| DF6340ZC28 | DF6340ZC29 | 2574/3501 | 550 | 2.15 | IMO Tier III | |
| DF6340ZC30 | DF6340ZC31 | 2206/3000 | 500 | 2.02 | IMO Tier III | |
|
DF8340 |
DF8340ZC | DF8340ZC1 | 4500/6120 | 600 | 2.54 | IMO Tier III |
| DF8340ZC2 | DF8340ZC3 | 4500/6120 | 620 | 2.50 | IMO Tier III | |
| DF8340ZC4 | DF8340ZC5 | 4800/6528 | 650 | 2.58 | IMO Tier III | |
| DF8340ZC6 | DF8340ZC7 | 4640/6310 | 650 | 2.46 | IMO Tier III | |
| DF8340ZC8 | DF8340ZC9 | 4045/5501 | 600 | 2.32 | IMO Tier III | |
| DF8340ZC10 | DF8340ZC11 | 3529/4800 | 550 | 2.31 | IMO Tier III | |
| DF8340ZC12 | DF8340ZC13 | 2970/4039 | 525 | 1.95 | IMO Tier III | |
Remark: Product parameters and model portfolio are for reference only. Please contact the relevant personnel for official information on delivery time. The delivery scope for each model engine shall be performed as per the corresponding technical files.
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