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HiMSEN

8H35/40G

Hyundai HiMSEN — Marinediesel, Bohrung 350 x Hub 400 mm, 720 rpm (60 Hz) / 750 rpm (50 Hz) rpm, 2779–4169 kW (H35DF); 2880–9600 kW (H35/40G gas variant). Brennstoff: Diesel (H35D), Dual-Fuel LNG/Diesel (H35DF), Natural Gas (H35/40G). Status: Active production; market leader in medium-speed marine diesel class; >10,000 units delivered to 43 countries. Verifiziert, Datenblatt verlinkt.

4480.0 kW
Power

Engine Specifications

8
Cylinders
350 mm
Bore
400 mm
Stroke

Components & Design

Component data being added…

Technical Data

Bore/Stroke (mm) 350/400
Power per Cylinder @ 720 rpm 480 kW
Mean Effective Pressure @ 720 rpm 23.1 bar
Mean Effective Pressure @ 750 rpm 22.2 bar
Max. Cylinder Pressure 190 bar
Compression Ratio (H35DF) 12.5:1
Specific Fuel Oil Consumption (H35DF diesel mode @ 100% MCR) 185.0 g/kWh
Dry Weight (6H35DF example) 34.7 tons
Turbocharger Scavenge Pressure 3.8 bar
Displacement Range 231–770 liters
configuration L
rpm 720
fuel type Pure-Gas
technology Lean-Burn Gas
power kw 4480

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Common failures & inspection points

Excessive valve clearance causes high-temperature erosion at valve seats, particularly exhaust valves; requires periodic adjustment per maintenance schedule
Fuel injector nozzle carbon deposits accumulation when operating on high-sulfur fuels; requires periodic cleaning and proper lubricating oil selection per MARPO
Cylinder liner scuffing due to oil film breakdown between piston rings and liner wall; inspection via scavenge ports and scrape-down oil analysis required
Crankshaft bearing wear accumulation during service intervals >16,000 hours (marine auxiliary); requires crankshaft deflection measurement and bearing clearance
Cylinder cover gasket leakage and gas sealing failures; proper bolt torque maintenance and periodic gasket replacement required per overhaul procedures

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #142851 · ✓ still in production