Main Engine 2-Stroke · Main Engines (2-Stroke)
The WinGD X52 is a low‑speed, two‑stroke marine main engine delivering up to ~12 MW per cylinder block, known for high power density and fuel flexibility across diesel and dual‑fuel (LNG, ammonia) options.
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What our service work and the manufacturer documentation say about keeping this model running.
Follow WinGD maintenance schedule. Cylinder condition checks commonly around 4000-8000 h; piston overhauls condition-based around 16000-24000 h.
X steht für WinGD Generation X, 52 für Bohrung 520 mm. Ohne B-Suffix: Standard-Bauhöhe (nicht die kompakte Version).
Der WinGD X52 ist ein mittelgroßer Zweitakt-Langsamläufer mit 520 mm Bohrung. Die X-Serie mit Common-Rail-Einspritzung und W.I.S.E.-Steuerung bietet gegenüber der RT-flex-Vorgängergeneration verbesserte Effizienz und niedrigere Emissionen. Typischer Einsatz auf Handysize/Handymax-Bulkern und Produkttankern. 520 mm Bohrung ist WinGD-spezifisch (MAN nutzt 500 mm).
| Parameter | Expected | Deviation means |
|---|---|---|
| Abgastemperatur nach Zylinder | 340-415 °C bei MCR | >20 °C Spread → CR-Einspritzproblem |
| Common-Rail-Druck | 800-1000 bar | Abfall → Pumpe oder Rail-Leckage |
| Pmax pro Zylinder | Gemäß Shop-Test ±3 bar | Spread >5 bar |
| Spülluftdruck | 2.5-3.2 bar abs bei MCR | Zu niedrig → Turbolader |
| Zylinderöl-Feed-Rate | 0.7-1.0 g/kWh | An BN anpassen |
Symptoms: Raildruck instabil, Einspritzventile undicht, erhöhte Abgastemperatur-Spreizung
Causes: Catfines im VLSFO >15 ppm nach Purifier, Feinfilter vor Rail verschmutzt oder bypass, Purifier-Fehleinstellung
Preventive: Brennstoff nach Purifier analysieren (<10 ppm Catfines), Feinfilter-Differenzdruck wöchentlich, kein manueller Filter-Bypass.
Symptoms: Zylinderöl-Verbrauch steigt, Leckgas
Causes: Feed-Rate nicht angepasst, VLSFO-Umstellung ohne BN-Anpassung
Preventive: Scavenge-Port-Inspektion alle 4.000 h, BN40 bei VLSFO.
Symptoms: Abgastemperatur steigt
Causes: HFO-Korrosion, Ventildrehung defekt
Preventive: Ventilinspektion alle 8.000-12.000 h.
IMO Tier II. Tier III mit SCR/EGR. WinGD X-Serie EEDI Phase 2/3 optimiert.
Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.
Critical spares: exhaust valves, ring packs, fuel injection valves, rail/control valve components, cylinder cover seals.
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