MaK M 46 DF
MaK M46DF Dual-Fuel (460mm bore) — Viertakt-Marinediesel, Bohrung 460 x Hub 610 mm, 500-514 rpm, 5,400 kW (6M46DF) to 18,000 kW (20VM46DF). Brennstoff: Diesel, Marine Diesel Oil (MDO), Heavy Fuel Oil (HFO), Liquefied Natural Gas (LNG). Status: In Production / Active Service (First installation 2013). Verifiziert, Datenblatt verlinkt.
Engine Specifications
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Verify functional relief valve systems on fuel gas manifolds and exhaust; check valve set pressure calibration annually
Inspect crankshaft bearing thermoelectric voltage via Caterpillar Bearing Condition Monitoring System; examine bearing shells for lead precipitation and surface wear patterns
Measure cylinder liner wear with inside micrometer; inspect piston ring grooves for cracks; perform borescope inspection of turbocharger turbine for blade erosion or damage
Test LNG regulator pressure response and heater thermostat setpoint; inspect heat exchanger for blockages; verify glycol system circulation and temperature control
Type-general inspection and maintenance points for this equipment category — not model-specific.
Service & Maintenance
Dual-fuel service includes gas admission system, pilot fuel system, combustion control and normal cylinder unit inspections.
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