Air Cooled Engine

In small air cooled engines the blower type fan works quite well if suitable guides and ducts are provided for the air streams.

Air cooled engine.

For starters air cooled engines are more likely to overheat. An air cooled engine has a simple design. Car production has featured air cooled engines over the years with some very successful and reliable designs coming from mainstream and sport car manufacturers alike. It has metal fins on the outer surface of head and cylinder block which increase the area exposed to the cooling air.

In all combustion engines a great percentage of the heat generated around 44 escapes through the exhaust not through the metal fins of an air cooled engine 12. Heat generated due to combustion in the engine cylinder will be conducted to the fins and when the air flows over the fins heat will be dissipated to air. The system is also used for the larger engine. Air cooled engines also warm up a lot faster than liquid cooled engines and don t have any risk of the coolant freezing which is beneficial if you re operating the vehicle in extremely cold temperatures.

Air cooled engines are popular in the aviation industry where greater airflow provides superior cooling negating the need for radiators and coolant. The cooling system on the suction side of the fan a more satisfactory cooling effect is obtained. The volkswagen air cooled engine is an air cooled boxer engine with four horizontally opposed cast iron cylinders cast aluminum alloy cylinder heads and pistons magnesium alloy crankcase and forged steel crankshaft and connecting rods. As the name suggests if an engine is cooled only by the circulating air over its hot parts then it is known as an air cooled engine.

Air cooled system air cooled system is generally used in small engines say up to 15 20 kw and in aero plane engines in this system fins or extended surfaces are provided on the cylinder walls cylinder head etc. This is achieved by natural air flow due to the forward motion of the vehicle. An air cooled engine even with modern fuel injection is still slower to get to that point because the cooling system is always on but a water cooled engine with a thermostat can keep the radiator out of the loop until everything is up to temperature. Air cooled engines rely on the circulation of air directly over heat dissipation fins or hot areas of the engine to cool them in order to keep the engine within operating temperatures.

But there are some considerable drawbacks too. These fins provide a larger contact area so as to achieve better heat dissipation.