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Wärtsilä
9LW22-GS-50Hz
The Wärtsilä 9LW22‑GS‑50Hz is a medium‑speed, 9‑cylinder V‑type diesel engine coupled to an alternator delivering ~1.2 MW (≈1496 kVA) at 50 Hz for shipboard auxiliary power.
1260.0 kW
Power
Engine Specifications
9
Cylinders
220 mm
Bore
320 mm
Stroke
4-stroke
Stroke Type
Components & Design
Component data being added…
Technical Data
Typ
4-stroke, direct injection, turbocharged and charge air cooling
Verdichtungsverhältnis (Vasa 32)
13.8:1
Mittlerer Druck (D-Rating)
21.9 bar
Mittlerer Druck (E-Rating)
24 bar
Spezifischer Brennstoffverbrauch (100% Last HFO)
187 g/kWh
Spezifischer Brennstoffverbrauch (85% Last HFO)
185 g/kWh
Mittlere Kolbengeschwindigkeit (Vasa 32)
8.4 m/s
Verdrängervolumen je Zylinder (Vasa 32)
28.15 dm³
Ventile je Zylinder
2 Einlass + 2 Auslass (Vasa 22: 4-Ventil-Technologie)
Schmiersystem
Circulation oil (gear and rotary pumps)
power kw
1260
rpm
750
fuel type
HFO/MDO
configuration
L
genset kw
1197
genset kva
1496
frequency hz
50
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Common failures & inspection points
Fuel injection pump plunger sticking at HFO 380: Missing heat storage in the pumps leads to insufficient fuel viscosity at low load (~10%) or
Connecting rod bearings (piston pin and big end bearing): Wärtsilä service letters document wear-dependent failure modes. Replacement required at wear limit
Cylinder liner wear and cross-cracks: Leakage at O-ring grooves, cracks in liner, blow-by require immediate action (piston + liner replacement). Class general
Turbocharger wear (VTR loader): Spent turbos increase SFOC, reduce max power. Wärtsilä offers performance upgrade (modern, more efficient loader,
Fuel injection pump bushing wear: Leakage from worn bushings + plungers reduces power. Replacement recommended at 12,000–16,000 h
Type-general inspection and maintenance points for this equipment category — not model-specific.
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Equipment Model #124626
· ✓ still in production
Wer liefert dieses Teil? 194 Betriebe im Verzeichnis · 15 aus Herstellerlisten
Chongqing Chuanqing Marine Power Equipment Co., Ltd.
Chongqing, China
FM-Power Serviços e Peças
Rio de Janeiro, Brazil
MARE Supply & Services
Haarlem, Netherlands
Marine Ecology Equipment OÜ
Tallinn, Estonia
OSM International
Miami, United States
Qinhuangdao Hy Marine Machinery Equipment Co., Ltd.
Qinhuangdao, China
World Marine Automation System
Busan, South Korea
2K Shipping & Trading Ltd
Kayaboyun, Turkey
A & D Sales Ltd
Skelmersdale, United Kingdom
ALME MARINE SA
Greece
ANEXUS
Barcelona, Spain
Abhi Marine Pvt. Ltd.
Mumbai, India
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