Main Engine 2-Stroke · Main Engines (2-Stroke)
The MAN 5S50ME-GI10 is a 5‑cylinder, low‑speed 2‑stroke dual‑fuel main engine delivering up to 18 650 kW at 127 rpm, notable for its high‑pressure (≈300 bar) gas injection and instant HFO/LNG switch.
5 steht für 5 Zylinder, S für Super-Long-Stroke, 50 für 500 mm Bohrung, ME-GI für Hochdruck-Gaseinspritzung (LNG), 10 für Mark 10.
Die S50ME-GI10 ist die neueste Mark-10-Version des 50er ME-GI. Hochdruck-Gaseinspritzung bei 300 bar im Diesel-Zyklus. Für LNG-Carrier. Mark 10 als aktuellste Generation mit verbesserter Elektronik.
| 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/Ventil |
| Pmax | ±2 bar | Abweichung → Steuerung |
| Pilot-Fuel-Anteil | 3–8% | Abweichung → Effizienz |
Symptoms: Druckabfall, Diesel-Fallback
Causes: Verschleiß bei 300 bar, Dichtungs-Versagen
Preventive: HP-Kompressor nach Vorgabe warten, Redundanz prüfen
Symptoms: Gas-Alarm
Causes: Verschleiß bei 300 bar
Preventive: Ventile bei Kolbenziehung inspizieren
Symptoms: Erhöhte Wear-Rate
Causes: Gas-Temperatur, BN
Preventive: BN25, Kühlwasser >65 °C
IMO Tier II/III. IGC Code. SOLAS. MARPOL — LNG nahezu SOx-frei, CO2 -25%.
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