Internal combustion engine working

September 13, 2017


Haynes Build Your Own Internal

When the fuel is burned inside the engine cylinder the engine is known as internal combustion engine. Internal combustion engines can be classified as:

On basis of Stroke-
•2 stroke
•4 stroke

On basis of Fuel-
•Spark Ignition (Petrol)
•Compression Ignition (Diesel)

★Functioning:(Petrol Engine)
The carburetor mixes the fuel air mixture in the required proportion in case of petrol engine. During suction stroke the piston moves from top to bottom & petrol-air mixture is sucked in case of petrol engine. Then the piston moves up from BDC (Bottom Dead Center) to TDC (Top Dead Center) & the compression stroke begins. The fuel air mixture is compressed & its temperature & pressure increases. When the compression stroke ends the spark plug (petrol) produces a spark and the fuel is burnt. The power stroke begins and the piston moves from TDC to BDC. The power is stored in flywheel in case of excess of it. The last stroke is the exhaust stroke where the piston moves from bottom to top and pushes the exhaust gases out through the exhaust valve.This process is continously repeated.

Source: www.quora.com
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