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The Weichai WH20 Series Marine Diesel Engine is engineered for demanding marine applications, delivering robust power and exceptional fuel efficiency. With rated powers ranging from 720 kW (965 hp) to 1,765 kW (2,366 hp), these engines ensure optimal performance and reliability for various marine vessels.
Key Features
- High Efficiency: Incorporates advanced technologies such as high-pressure fuel direct injection and multi-layer fluid heat exchange to optimize combustion, enhancing fuel efficiency and reducing emissions. The minimum fuel consumption rate is 185 g/kW·h. :contentReference[oaicite:0]{index=0}
- Robust Design: Built with high-strength components, including the engine block, crankshaft, and connecting rod, to withstand marine environments, ensuring durability and extended service life. The overhaul period is not less than 25,000 hours. :contentReference[oaicite:1]{index=1}
- Powerful Performance: Features a single-cylinder power of 220 kW, with a torque reserve of over 15%, meeting diverse operational needs without compromising performance. :contentReference[oaicite:2]{index=2}
- Compliance: Meets IMO Tier II emission standards, contributing to environmental sustainability without compromising performance. :contentReference[oaicite:3]{index=3}
- Versatility: Suitable for various marine applications, including passenger ships, fishing boats, and inland river transport vessels. :contentReference[oaicite:4]{index=4}
Technical Specifications
| Model | WH20 Series |
|---|---|
| Type | In-line, four-stroke, water-cooled, turbocharged and intercooled |
| Number of Cylinders | 6 or 8 |
| Bore x Stroke | 200 mm x 300 mm |
| Displacement | 56.55 L (6-cylinder) / 75.4 L (8-cylinder) |
| Rated Power | 720 kW (965 hp) to 1,765 kW (2,366 hp) at 600-1,000 RPM |
| Fuel System | Unit Pump / Common Rail Pump |
| Emission Standard | IMO Tier II |
| Idle Speed | Approximately 400 RPM |
| Rotation (facing the flywheel) | Clockwise |
| Dimensions (L x W x H) | 6-cylinder: 3,532 mm x 1,365 mm x 2,642 mm; 8-cylinder: 4,132 mm x 1,365 mm x 2,642 mm |
| Net Weight | 6-cylinder: 9,800 kg; 8-cylinder: 11,800 kg |
Operating Conditions
- Ambient Temperature: 25°C (77°F) – Max: 45°C (113°F)
- Barometric Pressure: 100 kPa
- Relative Humidity: 30% R
- Raw Water Temperature: 25°C (77°F) – Max: 32°C (90°F)
- Fuel Density: 0.840 ± 0.005 kg/L
- Lower Calorific Power: 42,700 kJ/kg
Applications
The Weichai WH20 Series Marine Diesel Engine is ideal for the following applications:
- Passenger ships
- Fishing boats
- Inland river transport vessels
- High-speed boats
- Auxiliary power units for various marine crafts
