Description
Product Specification Listing for Marine Engine: WÄRTSILÄ 4R20 - 884.7 HP
General Information
- Brand: Wärtsilä
- Model: 4R20
- Engine Type: 4-stroke diesel engine
- Application: Marine propulsion, auxiliary power for ships
Power and Performance
- Output Power: 884.7 HP (660 kW) at 900 RPM
- Continuous Power Rating: 884.7 HP
- Engine Speed: 900 RPM
- Specific Fuel Consumption: Approximately 180 g/kWh at full load
- Mean Effective Pressure: Consult specific technical documentation
Technical Specifications
- Configuration: In-line, 4-cylinder
- Bore x Stroke: 200 mm x 280 mm
- Displacement: Approximately 35.3 liters
- Compression Ratio: Typically 16:1 (consult specific manual)
- Charging System: Turbocharged and intercooled
- Starting System: Electric starter, pneumatically actuated systems also available
- Governor Type: Electronic/Mechanical (Optional models)
Dimensions and Weight
- Length: Approximately 3,245 mm
- Width: Approximately 1,290 mm
- Height: Approximately 2,230 mm
- Dry Weight: Approximately 5,500 kg
Fuel and Lubrication System
- Fuel Type: Marine Diesel Oil (MDO) or Heavy Fuel Oil (HFO)
- Fuel Injection System: Common rail or unit pump injection (depending on variant)
- Lubricating Oil Consumption: Typically less than 1 g/kWh
- Oil Capacity: Varies with configuration, typically around 320 liters
Environmental Compliance
- Emission Standards: IMO Tier II (with options for Tier III with SCR systems)
- Exhaust Emission Control: Selective Catalytic Reduction (SCR) available for Tier III compliance
Additional Features
- Safety Features: Over-speed protection, high-temperature and low-pressure alarms, emergency stop
- Monitoring and Control: Integrated engine management system with diagnostics and data-logging
- Cooling System: Freshwater cooling system, with option for sea/freshwater cooling or central cooling system
- Maintenance Intervals: Extended maintenance intervals for reduced downtime
Optional Accessories and Customization
- Gearbox Configuration: Option for integrated gearbox or PTO arrangements
- Power Take-off (PTO): Available for auxiliary equipment
- Exhaust System: Dry or wet exhaust systems available
- Flexible Couplings and Mounts: Customizable for reduced vibration and noise
- Acoustic Enclosures: Available for noise-sensitive applications
Manufacturer Information
- Manufacturer: Wärtsilä Corporation
- Country of Origin: Finland
- Contact Information:
- Website: www.wartsila.com
- Customer Service: [Contact Page on Website]
Warranty and Support
- Warranty Period: As per manufacturer's standard policy, typically 1-2 years or 12,000 operating hours
- Technical Support: Worldwide service network with remote monitoring options available
- Spare Parts Availability: Extensive global inventory for rapid deployment
Notes
- Installation Requirements: Professional marine engineering installation recommended
- Certification: Complies with major classification societies (DNV GL, Lloyd's Register, etc.)
Documentation
- User Manual: Provided with purchase
- Installation Guide: Detailed installation instructions provided
- Maintenance Manual: Comprehensive maintenance and service booklet
Wärtsilä 4R20 marine engine is a reliable and efficient choice for vessel propulsion and auxiliary power, designed to meet the stringent demands of marine operations. Please consult the official Wärtsilä documentation for detailed and up-to-date specifications.