"> WinGD 12X92DF
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WinGD

12X92DF

The WinGD 12X92DF is a 12‑cylinder, low‑speed 2‑stroke dual‑fuel main engine delivering up to 76 680 kW at 80 rpm, notable for its low‑pressure (~16 bar) gas admission that enables IMO Tier III compliance in gas mode without after‑treatment.

76680.0 kW
Power

Engine Specifications

12
Cylinders
920 mm
Bore
3468 mm
Stroke
76,680 kW
MCR Power
80.0 rpm
MCR RPM
2-stroke
Stroke Type
Family: WIN-GD X-DF · Tier: IMO Tier III (gas mode) · Fuel: HFO, VLSFO, MDO, LNG

Components & Design

Alpha Lubricator Control WIN-GD / Hans Jensen Lubricators
WIN-GD Pulse Lubrication System
Pulse lubrication for accurate CLO timing. Feed rate adjustable 0.5-1.0 g/kWh. Lower feed on gas mode.
Lead time: 6 wk
20.0 kg
Common Rail Unit (RT-flex / X-DF) WIN-GD / Winterthur
WIN-GD Common Rail Unit
Rail pressure ~1000 bar (fuel), ~200 bar (servo oil). Monitor rail pressure stability.
Lead time: 16 wk
1800.0 kg
Crankcase Oil Mist Detector GEA / Schaller Automation
GEA Westfalia OMD / Schaller VN215+
Same as diesel — SOLAS mandatory regardless of fuel. Test weekly.
Lead time: 2 wk
8.0 kg
Cylinder Liner WIN-GD
WIN-GD X-DF Cylinder Liner
Gas ports machined into liner — inspect for erosion. Wear rate significantly lower in gas mode.
Lead time: 16 wk
3200.0 kg
Dual-Fuel System (Gas Mode) WIN-GD
WIN-GD X-DF Gas Admission System
Gas admission at 10-16 bar via scavenge ports. Pre-chamber with diesel pilot. Monitor methane slip.
Lead time: 12 wk
350.0 kg
Engine Control Unit (ECU / ECS) WIN-GD / ABB
WIN-GD WiDE Engine Control System
WiDE = Wartsila Intelligent Diesel Engine. Dual-redundant. iCER optimization requires latest firmware.
Lead time: 8 wk
50.0 kg
Exhaust Valve (& Valve Seat) WIN-GD
WIN-GD Exhaust Valve (X-DF)
Gas mode extends valve life significantly (less hot corrosion). Overhaul at 16,000 hrs (gas-only: 24,000 hrs).
Lead time: 10 wk
300.0 kg
FGSS (Fuel Gas Supply System - LNG/Methanol) TGE Marine / Wartsila Gas Solutions
FGSS LNG Supply Module (ME-GI type HP / X-DF type LP)
LP-FGSS for X-DF (6-16 bar). Mandatory gas detection in duct space. Emergency shutdown drill monthly.
Lead time: 26 wk
Fuel Valve (Injector) WIN-GD
WIN-GD X-DF Fuel Valve (diesel + pilot)
Pilot injector critical for gas mode ignition. Inspect pilot nozzle at 4,000 hrs. Main valve at 8,000 hrs.
Lead time: 6 wk
75.0 kg
Governor (Electronic/Woodward) Woodward
Woodward 723PLUS / WIN-GD Integrated Governor
Integrated with WiDE. Gas/diesel mode switching requires governor parameter set change.
Lead time: 4 wk
15.0 kg
Hydraulic Power Supply (HPS) WIN-GD
WIN-GD Flex HPS (Common Rail Servo Oil)
Servo oil system at ~200 bar. Filter changes every 4,000 hrs. Use approved servo oil only.
Lead time: 14 wk
2500.0 kg
Piston Crown WIN-GD
WIN-GD X-DF Piston Crown
Gas mode reduces thermal loading. Inspect at 16,000-24,000 hrs. Extended intervals possible in gas-only service.
Lead time: 14 wk
1700.0 kg
SCR (Selective Catalytic Reduction) HUG Engineering / Yara Marine
WIN-GD SCR Reactor (for diesel mode Tier III)
Only needed for Tier III in diesel mode (gas mode is inherently Tier III). SCR bypass in gas mode.
Lead time: 20 wk
12000.0 kg
Scavenge Air Cooler WIN-GD / Alfa Laval
WIN-GD SAC (Plate/Shell-and-tube)
Cleaner in gas mode — extended cleaning intervals. Monitor charge air temperature after cooler.
Lead time: 14 wk
5000.0 kg
Sensors & Transmitters WIN-GD / Danfoss / ABB
WIN-GD Sensor Suite (pressure, temp, speed, knock)
Knock detection sensors critical for X-DF gas mode — prevents detonation. Calibrate every 4,000 hrs.
Lead time: 2 wk
2.0 kg
Turbocharger Unit (ABB/MHI/Napier) ABB Turbocharging
ABB A265-L Turbocharger
Gas mode significantly reduces fouling. Extended TC overhaul interval to 16,000-24,000 hrs in gas mode.
Lead time: 16 wk
8500.0 kg

Technical Data

Bohrung 920 mm
Hub 3468 mm
Hub/Bohrung-Verhältnis 3.77
MEP R1 (X92-B) 21.0 bar
MEP R1 (X92DF-2.0 Gasmode) 17.3 bar
BSFC R1 (X92-B Standard) 167 g/kWh
BSFC R2 (X92-B Standard) 160 g/kWh
Spezifische Leistung 6450 kW/cylinder (R1)
Typ Viertakt-Langsamläufer, gemeinsame Schiene (Common Rail)
Zündfolge 1-7-4-10-2-8-5-11-3-9-6-12
Thermischer Wirkungsgrad 51-53% (X92DF im Lastbereich 60-90%)
Emissions-Kompliance IMO Tier II (Standard), IMO Tier III (mit SCR)
unified from engine model True

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Common failures & inspection points

WECS-9520 Steuerungssystem-Ausfälle (dokumentierte Mängel in Servoöl-Lecks, Kraftstoff-Lecks, Drossel-Einspritzventile)
Cooling water leakage in cylinders and exhaust valve actuator deficiencies; inspection routine for high-pressure SCR system required
Bearing and piston cooling oil temperature monitoring critical; condensate flow at water separator too high (scavenging cooling system fouling)
Thermal stress cracks in cylinder head (valve bridge): cyclic thermal load at load changes 70-80 RPM; exhaust valve seating surface wear requires sc
Turbocharger oil leakage and leaks; scavenge air cooler fouling (air side: pressure drop, temperature rise; water side scaling)

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #38820 · ✓ still in production