Main Engine 2-Stroke · Main Engines (2-Stroke)
The MAN 7G40ME-C9.6 is a high‑power, low‑speed two‑stroke main engine featuring hydraulic cam replacement and advanced electronic control for optimized fuel consumption and Tier III emissions.
7 = Zylinderzahl, G = Ultra-Long-Stroke, 40 = Bohrung 400 mm, ME = elektronisch gesteuert, C = Compact, 9.6 = Engine Mark.
Die 7G40ME-C ist die 7-Zylinder Ultra-Long-Stroke-Variante der kleinsten ME-C-Klasse. 7 Zylinder bieten den besten Massenausgleich aller gängigen Zylinderzahlen — praktisch vibrationsfrei. Für kleine Frachtschiffe mit Anspruch an Laufruhe.
| Parameter | Expected | Deviation means |
|---|---|---|
| Abgastemperatur nach Zylinder | 345-415 °C | >25 °C über 7 Zyl → Einspritzung |
| P-max | ±5 bar | Timing |
| Spülluftdruck | 2.0-3.0 bar | TC |
| Zylinderöl-Feed-Rate | 0.8-1.2 g/kWh | Alle 7 individuell |
| Hydrauliköl-Druck | 200-300 bar | HCU |
Symptoms: Liner-/Injektor-Verschleiß
Causes: Cat-Fines
Preventive: Fuel-Analyse; Separator
Symptoms: Temperatur-Spreizung
Causes: Ungleicher Injektor-Verschleiß
Preventive: Performance-Monitoring; satzweiser Tausch
Symptoms: Liner-Verschleiß
Causes: BN niedrig
Preventive: BN anpassen; Jacket >80 °C
IMO Tier II. Tier III in ECA. MARPOL 0.50%/0.10% S.
Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.
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