5LU28
The Hanshin 5LU28 is a 5‑cylinder, medium‑speed 2‑stroke diesel main engine delivering up to 1 400 kW at 800 rpm, designed for compact installation on coastal and feeder vessels.
Engine Specifications
Inspector Detail
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Designation decoded
5 for 5 cylinders, LU for L-type U variant, 28 for 280 mm bore. Specs: stroke 390 mm. Hanshin EL series.
Background
The 5LU28 is the U variant of the Hanshin 280 mm engine. The LU variant differs from LA and LH in performance tuning. Same base design as the 5LA28 with identical bore and stroke.
Calculated metrics
Inspector checklist
- Cylinder liner: 280 mm bore, 390 mm stroke
- Piston rings: Hanshin configuration
- Crosshead bearing: compact
- Camshaft: Hanshin design
- Fuel pumps
- Valve clearance
- Injection nozzles: small nozzles
- Stuffing box: drainage
- Exhaust valve: mechanical
- Turbocharger: 1×
- Scavenge air cooler
Logbook reference values
| Parameter | Expected | Deviation means |
|---|---|---|
| Exhaust gas temperature after cylinder | 330-400 °C at 85% MCR | Spread >15 °C → injection problem |
| Engine speed | 200-400 rpm | Load/governor |
Common Failure Modes
Expert tips
- 💡 5LU28: identical base design to the 5LA28 — the difference lies in cam profiling and MCR tuning
- 💡 Hanshin engines: simple, robust, maintenance-friendly — ideal training engines for junior engineers
Related components
Classification & regulatory
IMO Tier II. Japanese regulations.
Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.
Other Cylinder Configurations 28
Components & Design
Component data being added…
Technical Data
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