Main Engine 2-Stroke · Main Engines (2-Stroke)
The MAN 5G80ME-GI10 is a low‑speed, five‑cylinder two‑stroke dual‑fuel engine delivering up to 44.5 MW at 78 rpm, notable for its high‑pressure gas injection and instant switch between HFO/VLSFO and LNG.
5 steht für 5 Zylinder, G für Green Ultra-Long-Stroke, 80 für 800 mm Bohrung, ME-GI für Hochdruck-Gaseinspritzung (LNG), 10 für Mark 10.
Die G80ME-GI10 ist die Mark-10-Version des G80-LNG-Motors. 800 mm Bohrung, 3450 mm Hub, S/B 4.31. Für große LNG-Carrier. Neueste Elektronik-Generation.
| Parameter | Expected | Deviation means |
|---|---|---|
| Abgastemperatur nach Zylinder | 310–370 °C (LNG); 350–420 °C (Diesel) | Spread >15 °C → Gas/Pilot prüfen |
| Gas-Einspritzdruck | 280–320 bar | Abweichung → HP-Kompressor |
| Pmax | ±2 bar | Abweichung → Steuerung |
| Kreuzkopflager-Temperatur | 55–65 °C | Anstieg → untersuchen |
Symptoms: Erhöhte Wear-Rate
Causes: Niedrige Gas-Temperatur, BN zu hoch
Preventive: BN25, Kühlwasser >65 °C
Symptoms: Diesel-Fallback
Causes: Verschleiß
Preventive: Warten, Redundanz
Symptoms: Gas-Alarm
Causes: Verschleiß bei 300 bar
Preventive: Inspizieren
IMO Tier II/III. IGC Code. SOLAS. MARPOL — LNG SOx-frei, CO2 -25%.
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