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HiMSEN
9LH21/32
The HiMSEN 9LH21/32 is a 9‑cylinder, medium‑speed (720–1000 rpm) four‑stroke trunk piston main engine delivering ~1 890 kW at 900 rpm, designed for dual HFO/MDO fuel operation.
1890.0 kW
Power
Engine Specifications
9
Cylinders
210 mm
Bore
320 mm
Stroke
4-stroke
Stroke Type
Components & Design
Component data being added…
Technical Data
Compression ratio
17:1
Stroke/Bore ratio
1.52 (320/210)
Max combustion pressure
200 bar
SFOC at 100% MCR
182-187 g/kWh (720-1000 rpm)
Lubricating oil consumption
0.6 g/kWh
Dry weight (5H21/32)
13.4 tons
Dry weight (6H21/32)
15.1 tons
Dry weight (7H21/32)
16.7 tons
Dry weight (8H21/32)
18.4 tons
Dry weight (9H21/32)
19.8 tons
Power per cylinder
160-210 kW/cyl (depending on speed)
Injection pressure
2000 bar maximum
power kw
1890
rpm
900
fuel type
HFO/MDO
configuration
L
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Common failures & inspection points
Piston cooling nozzle blockage/misalignment: Gasket residue and combustion deposits can clog cooling nozzles, leading to piston crown overheating, expansion, an
Scavenge space fire risk: Blow-past from defective piston rings or worn liners allows combustion products/oil into scavenge space; leaking air cooler can raise
Exhaust valve seat erosion/regression: High combustion temperatures cause valve seat wear; internal clearances tighten as seats erode, reducing flow and increas
Fuel injection nozzle coking: Poor fuel quality and high combustion temperatures cause deposit buildup in injector holes, reducing spray pattern and combustion
Type-general inspection and maintenance points for this equipment category — not model-specific.
Suppliers & Spare Parts
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Equipment Model #123447
· ✓ still in production