X72DF-2.1

X72DF-2.1

Designed for LNG carriers, Suezmax tankers, Panamax and Sub-Panamax containers and Capesize bulkers.

WinGD’s low-pressure dual-fuel technology is a sustainable propulsion solution that runs safely, reliably and efficiently on gas as a cleaner option over conventional heavy fuel oil or diesel oil. Further optimising the standard X-DF portfolio, WinGD now offers X-DF2.0 technology providing reductions to both fuel consumption and methane slip in gas mode. iCER – the Intelligent Control by Exhaust Recycling system, is the first application of X-DF2.0.
The X72DF-2.1 fulfils Tier III emission requirements without any external exhaust gas after treatment system when operating in gas and diesel mode.
VCR (Variable Compression Ratio) is available as an option, providing individually optimised compression ratio settings for both gas and diesel mode - delivering reduced fuel consumption, lower emissions, and enhanced performance, while providing adaptability for future fuel engines. VCR has no impact on engine footprint or installation requirements. For more information, visit this page.
All data provided on this site is for information purposes only, explicitly non-binding and subject to changes without further notice.

Fuel Types

  • LNG LNG

Vessel types

  • Tanker
    Tanker
  • Container Vessel
    Container Vessel
  • Bulk Carrier
    Bulk Carrier
  • Multipurpose Vessel
    Multipurpose Vessel
  • Gas Carrier
    Gas Carrier

  • High reliability

    Based on well proven X72DF

  • iCER - intelligent Control by Exhaust Recycling system

    Up to 3% energy consumption reduction in gas mode Up to 5% fuel consumption reduction in diesel mode Up to 50% reduction of methane slip. iCER on-engine as option

  • Reduced emissions

    IMO Tier III compliant in gas and diesel mode with iCER diesel mode VCR as option (Variable Compression Ratio)

Engine details

Definitions Download

X72DF-2.1

IMO Tier III in gas mode
Cylinder bore
720mm
Piston stroke
3086mm
Speed
69-89rpm
Mean effective pressure at R1
17.3bar
Stroke/bore ratio
4.29

Rated power, principal dimensions and weights

Output in kW at
89rpm 69rpm Length A
mm		 Dry mass
tonnes
Cyl. R1 R2 R3 R4
5 16125 13425 12500 10400 8230 495
6 19350 16110 15000 12480 9520 580
7 22575 18795 17500 14560 10810 642
8 25800 21480 20000 16640 12105 716
Output in kW at
89rpm 69rpm
Cyl. R1 R2 R3 R4
5 16125 13425 12500 10400
6 19350 16110 15000 12480
7 22575 18795 17500 14560
8 25800 21480 20000 16640
Cyl. Length A
mm		 Weight
tonnes
5 8230 495
6 9520 580
7 10810 642
8 12105 716

Dimensions
mm

B C D D (iCER on-engine)
4780 1575 10790 11755
F1 F2 F3 G
13655 13655 12730 2455

Brake specific consumption in gas mode

Rating point R1 R2 R3 R4
BSEC (energy) kJ/kWh 6918 6676 7020 6777
BSGC (gas) g/kWh 137.7 132.7 139.7 134.7
BSPC (pilot fuel) g/kWh 0.8 1.0 0.8 1.0

Brake specific fuel consumption in diesel mode

Rating point R1 R2 R3 R4
BSFC (diesel Tier II) kJ/kWh 177.3 171.3 179.3 175.3
BSFC (diesel Tier II) kJ/kWh 166.8 166.8 166.3 166.3

Brake specific consumption in gas mode

Rating point R1 R2 R3 R4
BSEC (energy) 1 kJ/kWh 6918 6676 7020 6777
BSGC (gas) 2 g/kWh 137.7 132.7 139.7 134.7
BSPC (pilot fuel) 3 g/kWh 0.8 1.0 0.8 1.0

Brake specific fuel consumption in diesel mode

Rating point R1 R2 R3 R4
BSFC (diesel Tier II)1 kJ/kWh 177.3 171.3 179.3 175.3
BSFC (diesel Tier II)2 kJ/kWh 166.8 166.8 166.3 166.3

iCER on-engine applies only to 5 / 6 / 7 cylinder applications.

All data provided on this site is for information purposes only, explicitly non-binding and subject to changes without further notice.

Definitions Download

Engine documentation for X72DF-2.1


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