OceanSphereENGINES

9L H25/33

Main Engine 4-Stroke · Main Engines (4-Stroke)

Technical data from manufacturer or class sources · not yet verified by a person​​‍‌‌‌​‌‍‌​‍‌‍‌‍‍​​‍
9Cylinders
250 mmBore
330 mmStroke
900 rpmMCR RPM

The HiMSEN 9L H25/33 engine is designed with a focus on durability and operational reliability, incorporating features like a compact and cost-effective design and a robust in-house HHI production process. This engine boasts a powerful 4140 kW output at 900 RPM, making it suitable for various marine and stationary power generation applications. Powered by MDO or MGO fuels, the 9L H25/33 features a 4-stroke, 9-cylinder configuration with a bore of 250 mm and a stroke of 330 mm. Its notable specifications include a compression ratio of 17:1, a maximum combustion pressure of 200 bar, and an SFOC of 181 g/kWh. The engine is compliant with IMO Tier II emissions standards and can achieve Tier III compliance with the addition of a Selective Catalytic Reduction (SCR) system. The 9L H25/33's dry weight is 20.2 metric tons for the 6H25/33 configuration, and it offers a variety of rated outputs depending on the configuration, reaching up to 2,700 kW.

Specifications

Technical data.from datasheet

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

Swept volume per cylinder16.2 dm³
Compression ratio17:1
Max combustion pressure200 bar
SFOC (100% MCR)181.0 g/kWh (diesel operation)
Oil consumption0.6 g/kWh
6H25/33 dry weight20.2 metric tons
7H25/33 dry weight22.5 metric tons
8H25/33 dry weight24.1 metric tons
6H25/33M rated output1,440-1,596 kW (depending on RPM)
7H25/33M rated output1,680-1,995 kW (depending on RPM)
8H25/33M rated output2,320 kW at 900 RPM
9H25/33M rated output2,565 kW at 900/1000 RPM; 2,700 kW max
Mean piston speed range7.9-11.0 m/s
Mean effective pressure22.2-27.2 bar (varies by configuration)
Emissions complianceIMO Tier II, Tier III (with SCR - Selective Catalytic Reduction)
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Download datasheet (PDF) (4721 KB)
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