Main Engine 2-Stroke · Main Engines (2-Stroke)
The MAN 7S40ME‑LGIM9.6 is a 7‑cylinder low‑speed 2‑stroke main engine delivering 10 990 kW at 146 rpm, equipped with high‑pressure methanol injection and diesel pilot ignition for Tier III compliant dual‑fuel operation.
7 = Zylinderzahl, S = Super Long Stroke, 40 = Bohrung 400 mm, ME = MAN Electronically controlled, LGIM = Liquid Gas Injection Methanol, 9.6 = Mark 9.6 Steuerungsgeneration.
Die S40ME-LGIM ist die kleinste Methanol-Variante im ME-LGIM-Portfolio. Die 40er-Bohrung mit 7 Zylindern adressiert Feeder-Containerschiffe, kleine Tanker und Kuestenschiffe. Der kompakte Bau (400mm Bohrung, 1600mm Hub) bietet einen Einstieg in Methanol-Antrieb fuer Reedereien mit kleineren Flotten.
| Parameter | Expected | Deviation means |
|---|---|---|
| Abgastemperatur (Methanol) | 270-350 Grad C | >20 Grad C Spread: Injektor |
| Methanol-Einspritzdruck | 600-700 bar | Pumpe/Filter |
| Zylindeloelverbrauch | 0.5-0.8 g/kWh | Dosierung |
| Pilot-Fuel-Anteil | 3-5% | >8%: Injektor |
| OMD | <2.5% LEL | Methanol-Leckage |
Symptoms: Pmax-Spread, Pilot-Verbrauch hoch
Causes: Pilot-Fuel-Rueckstaende, Spuelung unvollstaendig
Preventive: Alle 4000-6000 Bh pruefen.
Symptoms: OMD-Alarm, Oelkontamination
Causes: Dichtringe, Verformung
Preventive: Drainage taeglich, Oelanalyse alle 500 Bh.
Symptoms: Fuel-Changeover auf Diesel, Range-Limitation
Causes: Begrenzte Bunkerkapazitaet auf kleinen Schiffen, Methanol-Verfuegbarkeit in kleinen Haefen
Preventive: Voyage-Planung mit Methanol-Bunkering-Karte abstimmen.
IGF Code, LFPF-Notation. Auch kleine Schiffe mit Methanol unterliegen vollstaendig dem IGF Code — kein Rabatt auf Sicherheitsanforderungen.
Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.
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