Main Engine 2-Stroke · Main Engines (2-Stroke)
The WinGD X72‑B is a low‑speed, camshaft‑less 2‑stroke main engine delivering up to ~20 MW per cylinder, notable for its high power density and ability to run on conventional heavy fuel oil as well as alternative fuels such as LNG, methanol or ammonia.
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What our service work and the manufacturer documentation say about keeping this model running.
Follow WinGD PMS. Review scavenge inspections and drain-oil results before planning piston pull and liner honing.
X steht für WinGD Generation X, 72 für Bohrung 720 mm, B für kompakte Bauweise.
Der WinGD X72-B ist ein großer Zweitakt-Langsamläufer mit 720 mm Bohrung für große Bulker (Capesize), Tanker (Suezmax/VLCC) und Post-Panamax-Containerschiffe. Die 720 mm Bohrung konkurriert direkt mit dem MAN S70ME-C (700 mm). Der X72 ist ein Volumenmodell in WinGD's Portfolio.
| Parameter | Expected | Deviation means |
|---|---|---|
| Abgastemperatur nach Zylinder | 340-410 °C bei MCR | >20 °C Spread → Einspritzproblem |
| Common-Rail-Druck | 800-1000 bar | Abfall → Pumpe oder Rail |
| Pmax pro Zylinder | Gemäß Shop-Test ±3 bar | Spread >5 bar |
| Spülluftdruck | 3.0-3.6 bar abs bei MCR | Zu niedrig → Turbolader |
| Zylinderöl-Feed-Rate | 0.7-1.0 g/kWh | An BN anpassen |
| Kurbelwellen-Deflexion | Gemäß WinGD-Tabelle X72 | Überschreitung → Fundament oder Lager |
Symptoms: Raildruck-Trend abfallend, Druckpulsationen
Causes: Catfines-Abrasion, Langzeit-Verschleiß, Brennstoff-Kontamination
Preventive: Brennstoff-Feinfilter, Raildruck-Trend dokumentieren, Pumpeninspektion gemäß Intervall.
Symptoms: Temperaturanstieg, Metalldetektor, Vibration
Causes: Ölfilm-Zusammenbruch bei Slow-Steaming, Partikelkontamination, 720 mm Kolbenmasse
Preventive: Temperatur tägliche Auswertung, Zylinder-Cut-Out bei Slow-Steaming.
Symptoms: Zylinderöl-Verbrauch, Leckgas
Causes: Feed-Rate, VLSFO-BN
Preventive: Scavenge-Port alle 4.000 h.
IMO Tier II. Tier III mit SCR/EGR. EEDI Phase 2/3.
Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.
Keep piston rings, exhaust valves, fuel injection equipment, starting air valve kits and control oil/rail spares.
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