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Wärtsilä
Wärtsilä W22
The Wärtsilä W22 (Vasa 32) is a medium‑speed, four‑stroke trunk‑piston diesel main engine designed for ship propulsion, notable for its large bore (220 mm), relatively low rpm (≈900) and ability to run on heavy fuel oil or marine gasoil.
Engine Specifications
220 mm
Bore
320 mm
Stroke
Components & Design
Component data being added…
Technical Data
Typ
4-Takt, Direkteinspritzung, turbogekühlt und Ladeluftkühlung
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
Zirkulationsöl (Zahn- und Radpumpen)
rpm
900
configuration
L
fuel type
HFO/MGO
technology
Medium-Speed Trunk Piston
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Common failures & inspection points
Einspritzpumpen-Plunger Klemmen bei HFO 380: Fehlende Wärmespeicherung in den Pumpen führt zu unzureichender Brennstoffviskosität bei Niedriglast (~10%) oder Ab
Pleuelstangen-Lager (Kolbenbolzen u. Großendlager): Wärtsilä Servicebriefe dokumentieren verschleißabhängige Ausfallmodi. Ersatz erforderlich bei Verschleißgren
Zylinderlinern-Verschleiß u. Quellrisse: Leckagen an O-Ring-Nuten, Risse im Liner, Blow-by erfordern sofortige Maßnahmen (Kolben + Liner-Wechsel). Klasse-allgem
Turbolader-Verschleiß (VTR-Lader): Verbrauchte Turbos erhöhen SFOC, senken max. Leistung. Wärtsilä bietet Performance-Upgrade (moderner, effizienterer Lader, SF
Brennstoffeinspritzpumpen-Laufbuchsen-Verschleiß: Undichtigkeiten aus abgenutzten Buchsen + Plungern reduzieren Leistung. Austausch empfohlen bei 12000-16000 h
Type-general inspection and maintenance points for this equipment category — not model-specific.
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Maritime Network →Manuals
- datasheet
- project_guide
Equipment Model #66570
· ✓ still in production