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Diesel Engine 12V26/32
Using marine diesel oil and heavy oil, the diesel engine 12V26/32 is primarily used for propulsion poweron ships. It can be utilized for the drive power for the main/auxiliary propulsion unit on ocean-going vessels, naval vessels, main/auxiliary propulsion unit on drilling platforms, semi-submersible drilling ships, offshore multi-purpose work ships, large and medium-sized industrial power plants, crude oil and product oil transfer and booster pump stations, compressors, and others.
Modularized common rail technology
The use of the world's most advanced high-pressure common-rail fuel system not only reduces the size of the camshaft and the cost of the engine greatly, but also improves the overall performance including the emission performance. The common rail system consists of two common-rail high pressure oil pumps, the high pressure oil tube, and fuel injector with accumulation chamber. The pressure of the system is 1800bar.
By-pass system
As single-stage ultra-high supercharging can not meet the intake requirement under partial-load conditions for ship drive, the diesel engine is designed with a signal collection system which can automatically control the bypass valve. Therefore, sufficient fresh air can be supplied, which makes the diesel engine better suited for marine propulsion.
- Dual electronic control system
- High supercharging technology
- MPC exhaust air system, rate of supercharging: 3:9
- Double-stage intercooling technology
- Self-cleaning filtration technology
- Piston with steel crown and nodular cast-iron skirt
- Goetze piston ring
- Double-layer alloy bearing liner
- Crankcase oil mist detection
| Type | Four-stroke, water cooled, supercharged, intake intercooled, direct-injection type combustion chamber | ||||
| Number and arrangement of cylinders | 12-cylinder, V type, 60° | ||||
| Cylinder diameter×Stroke | mm | 260×320 | |||
| Displacement of a single cylinder | L | 17 | |||
| Compression ratio | 16:1 | ||||
| Continuous power | kW | 4170 | |||
| Continuous revolution | r/min | 1000 | |||
| Min. operating speed (steady-state) r/min | 350 | ||||
| Under the operating condition of continuous power | Specific fuel consumption | g/kW.h | ≤184+5% | ||
| Specific oil consumption | g/kW.h | ≤0.5 | |||
| Mean effective pressure | MPa | 2.45 | |||
| Mean speed of piston m/s | 10.7 | ||||
| Exhaust gas temperature (after the turbo) ℃ | 354 | ||||
| Smoke intensity FSU | ≤0.5 | ||||
| Noise dB(A) | ≤120 | ||||
| Emission | The diesel engines with different configuration meet IMO Tier Ⅰor Tier Ⅱ standards. | ||||
| Fuel system | Common rail system | ||||
| Type of fuel | Light diesel oil | ||||
| Direction of rotation | Counterclockwise (face the flywheel end) | ||||
| Cooling mode | Forced cooling | ||||
| Lubrication mode | Pressure lubrication | ||||
| Starting mode | Air motor | ||||
| Net weight (without flywheel) kg | 29500 | ||||
| Overall size (l×b×h) mm | 5830×2240×3355 | ||||
CNPC JICHAI was formed in 1920, we are a prestigious brand in China and is a global leader in internal conbustion engine and generator set manufacturing. Our power solutions are designed to improve your performance and productivity.
