Main Engine 2-Stroke · Main Engines (2-Stroke)
The MAN 6S70ME-GA10 is a six‑cylinder, low‑speed two‑stroke main engine delivering up to 48 480 kW at 91 rpm, notable for its dual‑fuel capability (HFO/VLSFO/MDO and ethane/LNG) and Tier III emissions compliance.
6 steht für 6 Zylinder, S für Super-Long-Stroke, 70 für 700 mm Bohrung, ME-GA für elektronisch gesteuerte Zweitaktmaschine mit Ethan-fähiger Gaseinspritzung, 10 für Mark 10.
Die S70ME-GA10 mit 6 Zylindern ist ein mittelgroßer bis großer Dual-Fuel-Motor für VLEC/VLGC. S/B 4.0 bei 700 mm. 6 Zylinder für gutes Leistungs- und Schwingungsverhalten.
| Parameter | Expected | Deviation means |
|---|---|---|
| Abgastemperatur nach Zylinder | 320–380 °C (Gas); 350–420 °C (Diesel) | Spread >15 °C → Gas/Pilot prüfen |
| Gas-Einspritzdruck | 250–300 bar | Abweichung → Kompressor/Ventil |
| Pmax | ±2 bar Zylindergleichgewicht | Abweichung → Steuerung |
| Kühlwasser-Temperatur | 80–85 °C (auch im Gasbetrieb >65 °C halten) | Zu niedrig im Gasbetrieb → Kaltverschleiß-Risiko |
Symptoms: Gas-Alarm, Druckabfall
Causes: Verschleiß, Ethan-Exposition
Preventive: Ventile bei Kolbenziehung inspizieren
Symptoms: Erhöhte Wear-Rate
Causes: Niedrige Temperatur, BN zu hoch
Preventive: BN25-Öl, Kühlwasser >65 °C
Symptoms: Diesel-Fallback
Causes: Kompressor-Verschleiß
Preventive: FGSS warten
IMO Tier II/III. IGC Code. SOLAS. MARPOL — nahezu SOx-frei bei Gas.
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