1. Basic Overview
Type: air-cooled, four-stroke, direct-injection diesel engine
Cylinder arrangement: inline 3, 4 or 6 cylinders (FL912 is the series name, specific models are BF3L912, BF4L912, BF6L912, etc.)
Cooling method: air-cooled design (no water tank required, suitable for high temperature and drought environment)
Fuel system: mechanical direct injection (later models can choose turbocharging)
Displacement: 2.55L (3 cylinders) ~ 5.1L (6 cylinders)
Power range: about 25kW (34 horsepower) ~ 110kW (150 horsepower), depending on the model and adjustment.
2. Core features
Air cooling technology:
The cylinder and cylinder head are forced to cool by fans, with a simple structure and easy maintenance, suitable for water-scarce and extreme environments (such as deserts and mines).
No water tank, water pump and other components, reducing failure points.
High reliability:
Cast iron cylinder block and reinforced crankshaft design, strong durability.
Adapt to high load and long-term continuous operation (such as generator sets or construction machinery).
Fuel economy:
Direct injection combustion technology, low fuel consumption, fuel consumption rate of some models ≤210g/kWh.
Compact design:
Small size and light weight, easy to install in equipment with limited space.
3. Typical application areas
Construction machinery: small excavators, loaders, rollers.
Agricultural machinery: tractors, harvesters, irrigation pumps.
Generators: backup power or mobile power stations (5~100kVA).
Special vehicles: forklifts, airport ground equipment.
Industrial use: air compressors, fire pumps, etc.
4. Maintenance and Advantages
Easy maintenance:
The air cooling system does not require antifreeze, and only the engine oil, air filter and cooling fan need to be checked daily.
The parts are highly versatile and the maintenance cost is low.
Environmental adaptability:
It can work stably in an environment of -30°C to +50°C, suitable for developing countries or harsh working conditions.
