The Difference between Air-cooled Engines And Water-cooled Engines

The differences between air-cooled engines and water-cooled engines are as follows:

1. Working temperature: The suitable working temperature of the cylinder wall of an air-cooled engine is 150-180°C, while the suitable working temperature of the cylinder wall jacket of a water-cooled engine is 85-95°C.

2. Cooling method: Air cooling uses air as the cooling medium. The high-speed flowing air directly takes away the heat of high-temperature parts to reduce the temperature of the engine. Water cooling uses water (or antifreeze) as the cooling medium to take away the heat of high-temperature engine parts to ensure the normal operating temperature of the engine.

3. Application scenarios: Air-cooled engines are generally used on two-stroke engines, and water-cooled engines are generally used on four-stroke engines.

4. Cost and maintenance: Air-cooled engines have low cost and simple structure. As long as the cylinder head and cylinder block are kept clean, there will be no faults in the cooling system. Water-cooled engines require additional water pumps, radiators, coolants, etc., so the initial manufacturing costs and subsequent maintenance and repair costs are relatively high.