How Does A Car Engine Work
The 2 main types of Car Engines
The Petrol Engine
A Petrol Engine operates on the principle of combustion. A fuel/air mixture is pulled into a cylinder, the cylinder is then closed off and the piston is thrust upwards to create compression. A spark is introduced to igninte the mixture to create combustion to thrust the piston downward in the engine block.
In an car engine there can be a number of pistons, usually this is between 4-12 cylinders depending on the design. The pistons are then connected to a crankshaft through a connecting rod. Pistons then fire consecutively to rotate the crankshaft inside the engine block. The oil pump then pushes oil through the oil filterwhich then supplies oil to the car engine parts including the crank and camshaft, cylinder walls and piston rings, valve train and cam lifters, also the timing gears or chain. Motor oil is then used to lubricate and cool internal engine parts. Oil is then pumped up through the engine, and then returns to the bottom of the engine and is gathered in the oil pan.
What is the difference between the Petrol and the Diesel Car Engine. Diesels use direct fuel injection in preference to the using of carburation or port fuel injection. This is then more enviromentally friendly, more efficient and off course cheaper to run. This is a typical diesel engine.
The four stroke are:
Intake Stroke - the intake valve opens, letting in air and moving the piston down.
Compression stroke - the piston moves back up and compresses the air.
Combustion stroke -as the pistone reaches the top, fuel is injExhaust stroke -the piston moves back to the tophing out the exhaust created from the combustion of the exhaust valve.
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