Why Royal Enfield Bullet Has Always Air Cooled Engine? | Why Oil/Liquid Engine Not Given In Bullet?

Every time you crank up the internal combustion engine of your two-wheeler, there are countless explosions taking place inside the cylinder, which, along with the frictional forces of the various moving parts inside, generate a tremendous amount of heat. Engines convert energy produced by the burning of the fuel into mechanical energy; in our case it is into turning of the wheels. But not all the energy generated by combustion is converted into mechanical energy, the big chunk gets dissipated as heat energy. As we try to run the engine on higher revs, higher amount of heat is generated (due to friction between mechanical parts) which results in heating of the engine.

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Air cooled vs Oil cooled vs Liquid cooled - Which engine is the best? | Hindi : https://youtu.be/ZiaS_qKc2SE

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For a smooth running of the engine as well as to maintain an optimum performance, the engine needs to be cooled down, and this where the ‘cooling technology’ comes into the picture. There are three categories we can classify engines based on the cooling method employed…

1. Air cooled Engine
2. Oil Cooled Engine
3. Liquid cooled Engine

The basic question about preference depends on the bike you choose which either comes equipped with air cooling or liquid cooling. There is also oil cooling, but it is not as efficient as liquid cooling. The liquid cooling systems are actually used for engines with higher compression ratio. When engines have a higher compression ratio and run at higher RPMs, the air cooling is not sufficient to keep the engine within normal operating temperatures; the reason why liquid cooling is used here. Yes, it does cost extra for maintenance, but overall is it something one has to bear for a longer living engine.

But do not be under the impression that liquid cooling means a higher engine life. Any bike when cared for properly with regular servicing and fluid changes will last for a long time, no matter what. Just that the engines which do not burn a lot of fuel and run on low RPMs use air cooling because it really does not require liquid cooling to keep its operating temperature at an optimum level. The very reason why a 500cc Royal Enfield Bullet uses Air cooling whereas a Bajaj Pulsar 200NS uses liquid cooling. So it all depends on the engine and its working.

#Bullet #Engine #CoolingSystem

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