components of internal combustion engine

.Hi guys,
 After a long time I am writing my next blog and the blog continues with the topic engine.
so in my last blog I described about 2 stroke and 4 stroke engines.
And in this blog I am going to tell you all about components of engines.

Components of internal combustion engine
 The ignition system of an internal combustion engines depends on the type of engine and the fuel used. Petrol engines are typically ignited by a precisely timed spark, and Diesel engines by compression heating. Historically, outside flame and hot tube systems were used, see hot bulb engine. 

Spark

In a spark ignition engine, a mixture is ignited by an electric spark from a spark plug — the timing of which is very precisely controlled. Almost all gasoline engines are of this type. Diesel engines timing is precisely controlled by the pressure pump and inject.

Compression

Ignition occurs as the temperature of the fuel/air mixture is taken over its autoignition temperature, due to heat generated by the compression of the air during the compression stroke.

Carburetor

Simpler reciprocating engines continue to use a carburetor to supply fuel into the cylinder.

 

Fuel injection

Larger gasoline engines used in automobiles have mostly moved to fuel injection systems. Diesel engines have always used fuel injection system because the timing of the injection initiates and controls the combustion.

Fuel pump

Most internal combustion engines now require a fuel pump. Diesel engines use an all-mechanical precision pump system that delivers a timed injection direct into the combustion chamber, hence requiring a high delivery pressure to overcome the pressure of the combustion chamber. Petrol fuel injection delivers into the inlet tract at atmospheric pressure (or below) and timing is not involved, these pumps are normally driven electrically.

I end up this blog up to this topic.
And in next blog i will discuss about the components of 4 stroke engine
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