Products
1.Reliability and durability
Following the demanding specifications for mechanical development verification, all products have been subject to more than ten tests during R&D, such as deep thermal shock tests, high-temperature, and alpine-cold tests, and crankshaft fatigue tests; the product is developed reliably with European technology and in-depth and generalized mechanical development procedures, enabling the overhaul period of the engine is over 12000 hours.
2.Fuel and money saving
Yuchai's advanced independent electronic control technology ensures flexible fuel injection quantity control, high fuel injection pressure, proper combustion control, stable operation, low combustion noise, better dynamic performance, low speed and high torque, high torque reserve, quick response, and faster acceleration. The application of the four-valve technology ensures substantially increased flow area of intake and exhaust; the central fuel injector enables more even atomization and more sufficient combustion. The valve oil seal is added using Yuchai's proprietary piston ring seal and valve oil seal technologies, making the consumption of lubricating oil over 50% lower than that of domestic products at the same power level.
3.Safety and comfort
It is equipped with digital intelligent local and remote monitoring instruments and integral cast iron fresh water cooling jacket exhaust pipe, ensuring lower cabin temperature and safer use. Its integral crankcase, rear gear chamber and advanced point-line meshing gear technology make its noise lower and offer its customers greater comfort than similar domestic products.
4.High adaptability
It has automatic and manual parallel functions, with its performance meeting the relevant provisions of the General Technical Condition for Marine Diesel Generator Sets (GB/T13032-2010).
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Name |
Main Technical Parameters |
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Genset model |
CCFJ250J-W2 |
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Power supply type |
Three-phase AC |
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Rated power kW |
250 |
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Rated voltage V |
400 |
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Rated current A |
451.1 |
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Rated frequency (Hz) |
50 |
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Rated power factor(COSφ) |
0.8（Lag） |
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Rated speed r/min |
1500 |
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Absolute value of steady-state voltage regulation % |
≤2.5 |
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Absolute value of transient voltage deviation (%) |
Sudden unloading 60% Rated current |
≤20 |
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Sudden load 60% Rated current |
≤15 |
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Voltage stabilization time (s) |
≤1.5 |
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Absolute value of voltage fluctuation rate % |
≤1 |
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Absolute value of transient speed regulation % |
Sudden load 0-50% |
≤10 |
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Sudden load 50-100% |
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Sudden unloading 100%-0 |
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Transient speed regulation stabilization time (s) |
≤5 |
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Steady-state speed regulation % |
≤5 |
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Absolute value of speed fluctuation rate% |
≤0.5 |
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Insensitivity of genset speed governing system % |
≤0.5 |
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Fuel consumption rate under rated conditions (g/(kW·h))） |
≤205 |
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Specific oil consumption g/(kW·h) |
≤0.35 |
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Fuel grade |
Summer: 0#, 10# light diesel of GB 19147-2016 premium grade or first grade;； |
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Winter: 0#, -10#, -20# and -35# light diesel of GB 19147-2016 premium grade or first grade (selected based on the ambient temperature)) |
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Oil grade |
Summer: 40CF, 15W/40CF; |
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Winter: 30CD, 10W/30CD or other diesel engine oil that is not inferior to Grade CF in GB 11122-2006 and suitable for the environment. |
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Start mode |
Electric start |
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Cooling mode |
Internal circulation：Closed circulating water cooling，External circulation：Open water cooling |
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Connection mode of motor winding |
Three-phase four-wire |
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Operating mode of genset |
Continuous |
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Operating environment conditions |
Ambient temperature |
45°C |
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Outboard water temperature |
32°C |
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Inclination angle |
Hell: 15°; roll: 22.5°; trim: 7.5°; pitch: 10° |
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Temperature rise |
Thermal classificationA |
55°C |
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Measurement method R |
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Short circuit |
The alternator and its excitation system can maintain at least 3 times the rated current for at least 2s under steady-state short-circuit conditions. |
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Overload |
50% overcurrent; 2 min |
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Fuel engine model |
YC6MJ410L-C24 |
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Rated power of diesel engine (kW) |
300 |
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Alternator model |
SB-HW4.D-250 |
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（SAE1-14） |
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Rated power of motor (kW) |
250 |
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Genset weight (kg) |
2120 |
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Diemension（Length × width × height） mm |
2500×1035×1385 |
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Note: Dimension (L*W*H) may vary with the configuration. |
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Large displacement, high gradeability and high efficiency
Bosch high pressure common rail (HPCR) fuel injection system with the injection pressure up to 1,600 bar, achieving multiple injections and accurate control
High-strength alloy cast iron cylinder head
General engine block + independent crankcase
Long B10 service life design, which can be more than 500,000 km
Reduction soft meshing starter, ensuring smooth start
A framed engine body structure, ensuring good rigidity and small vibration
Damping gear
1.Reliability and durability
Following the demanding specifications for mechanical development verification, all products have been subject to more than ten tests during R&D, such as deep thermal shock tests, high-temperature, and alpine-cold tests, and crankshaft fatigue tests; the product is developed reliably with European technology and in-depth and generalized mechanical development procedures, enabling the overhaul period of the engine is over 12000 hours.
2.Fuel and money saving
Yuchai's advanced independent electronic control technology ensures flexible fuel injection quantity control, high fuel injection pressure, proper combustion control, stable operation, low combustion noise, better dynamic performance, low speed and high torque, high torque reserve, quick response, and faster acceleration. The application of the four-valve technology ensures substantially increased flow area of intake and exhaust; the central fuel injector enables more even atomization and more sufficient combustion. The valve oil seal is added using Yuchai's proprietary piston ring seal and valve oil seal technologies, making the consumption of lubricating oil over 50% lower than that of domestic products at the same power level.
3.Safety and comfort
It is equipped with digital intelligent local and remote monitoring instruments and integral cast iron fresh water cooling jacket exhaust pipe, ensuring lower cabin temperature and safer use. Its integral crankcase, rear gear chamber and advanced point-line meshing gear technology make its noise lower and offer its customers greater comfort than similar domestic products.
4.High adaptability
It has automatic and manual parallel functions, with its performance meeting the relevant provisions of the General Technical Condition for Marine Diesel Generator Sets (GB/T13032-2010).