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W"artsil"a 34DF

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The W"artsil"a 34DF is manufactured in configurations from 6L to 16V, giving 500 kW per cylinder and a total maximum mechanical output of 8000 kW. The engine speed is 750 rpm. Based on the well proven and reliable W"artsil"a 32 diesel engine introduced in the mid-1990s, fuel flexibility means the engine can be optimized for constant speed generating sets, as well as variable speed mechanical drives, for main engine applications.

W"artsil"a 34DF

Original Information from W"artsil"a website - W"artsil"a 34DF


Fuel flexibility


The W"artsil"a dual fuel engine capability enables ships to be operated on either conventional liquid marine fuels (LFO, HFO or liquid bio fuel) or LNG. The switch between fuels can be made seamlessly without loss of power or speed. Such fuel flexibility enables compliance with emission regulations in controlled areas, while giving operators the option of determining the fuel according to cost and availability.

When operating in gas mode, the W"artsil"a 34DF engine is already compliant with IMO Tier III regulations without any secondary exhaust gas purification systems. Also, when fuelled by gas, the SOx and CO2 emissions are notably reduced and smokeless operation is attained.

In liquid fuel oil mode, the W"artsil"a dual fuel engines are fully compliant with the IMO Tier II exhaust emissions regulations set out in Annex VI of the MARPOL 73/78 convention. The engine is able to operate efficiently and economically on low sulphur fuels (<0.1% S), making it suitable for operation in emission-controlled areas.

The W"artsil"a 34DF has also obtained certification of emission standard compliance from the United States Environmental Protection Agency (EPA), which further endorses the environmental compliance of this engine.

主要技术参数
Technical data
W"artsil"a 34DF IMO Tier III, EPA T2/T3
Cylinder bore 340 mm Fuel specification:
Piston stroke 400 mm Fuel oil 700 cSt/50°C
Cylinder output 500 kW/cyl 7200 sR1/100°F
Speed 750 rpm ISO 8217
Mean effective pressure 22.0 bar category ISO-F-DMX, DMA & DMB
Piston speed 10.0 m/s BSEC 7280 kJ/kWh at ISO cond.
BSGC 7200kJ/kWh at ISO cond.
Dimensions (mm) and weights (tonnes)
Engine type A B C D F Weight
6L34DF 5 325 2550 2380 2 345 1 155 35
8L34DF 5 960 2 550 2 610 2 345 1 155 44
9L34DF 6 870 2 550 2 610 2 345 1 155 49
12V34DF 6 865 2 435 2 900 2 120 1 210 61
16V34DF 7 905 2 570 3 325 2 120 1 210 77

34df

Rated power
Engine type kW
6L34DF 3 000
8L34DF 4 000
9L34DF 4 500
12V34DF 6 000
16V34DF 8 000
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