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Mitsubishi
5UEC68LSE-Eco
The Mitsubishi 5UEC68LSE‑Eco is a five‑cylinder, electronically controlled two‑stroke low‑speed main engine designed for large ocean‐going vessels, offering high power output with low specific fuel consumption and multi‑fuel capability.
14000.0 kW
Power
Engine Specifications
5
Cylinders
680 mm
Bore
2690 mm
Stroke
Components & Design
Component data being added…
Technical Data
SFOC (UEC60LSE-Eco-A2)
164-170 g/kWh (IMO Tier II)
BMEP (UEC60LSE)
20.0-21.0 bar @ MCR
Piston speed (UEC60LSE)
8.4 m/s
Dry mass UEC60LSE 8-cyl
447 tons
Dry mass UEC60LSE 5-cyl
300 tons
Bore/Stroke ratio UEC60LSE
4.00
Stroke/Bore UEC68LSE
3.96
Electronically controlled
Fuel injection, exhaust valve, cylinder lubrication (ECL)
configuration
inline
rpm
88
fuel type
HFO/VLSFO/MGO
technology
UE LSE Electronically Controlled
displacement l per cyl
976.9
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Common failures & inspection points
Exhaust valve fouling durch Natrium/Vanadium-Ablagerungen (Na2SO4, CaSO4, V2O5) bei schwerem Brennstoff mit hohem Schwefelanteil (bis 5%); unter Taupunkt konden
Turbolader-Verschmutzung durch Kohle- und Ascheteilchen im Abgas bei Niedriglastarguetrieb, BMEP-Rückgang und Verbrennungsverschlechterung
Kolbenringleckage und Brennstoffverdünnung (>2-3%) durch Verschleiß an Zylinderlauffläche/Kolbenringen, erhöhter Blowby und Öl-Kontamination
Zylinderliner-Verschleiß durch korrosive Verbrennung bei schwefelhaltigem Brennstoff; Inspektionskriterium: Verschleiß nach Höhe der Gleitfläche, max. zulässig
Wellenlager-Verschleiß durch Öl-Kontamination; wöchentliche Prüfung auf Wassereintritt (<2% zulässig) und 3-Monats-Analyse auf Verschleißmetalle (Fe, Cu) erford
Type-general inspection and maintenance points for this equipment category — not model-specific.
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Equipment Model #67474
· ✓ still in production