Minggu, 24 April 2011

What Is A Spark Plug?

Spark Plug is one of the performance parts of a car. It is an electronic device found in the engine. This device is of great importance in an internal combustion engine. The main use of the plug is to ignite the air-fuel combination since it fits at the cylinder head of the engine. An internal combustion engine is one, which gets its power by means of explosion of gases inside a combustion chamber.
A genuine car usually has a four-stroke petrol engine. This means that with every rotation the performance parts in the engine have four strokes or movements.  In every cylinder is a piston that shifts up and down in the interior of the cylinder. This is to squeeze the gas for ignition and to thrust the exhaust gas out after burning. The air-fuel mixture ignites using an electric spark.
Features of a spark plug
Some of the constituents of a plug include:

  • Insulated central electrode
  • Heavily insulated wires
  • Grounded terminal on the base
  • A spark gap inside it
ASpark Plug works in a very simple manner. It transmits energy in form of electricity, which changes petroleum into operational power. For it to do this, the spark plug requires enough quantities of electrical energy that cause it to jump across the spark gap to create an electrical performance. The power is provide by the ignition system.
To make this process efficient, the temperature at the spark plug's firing point should be low enough to prevent pre-ignition and high enough to hinder fouling. This device is multi-purpose. It can also work in other applications for example furnaces. The application must be one that requires a combustible mixture to ignite.
Thermal performance is the name of the process. The heat range of the spark plug usually controls it.  A Spark Plug removes heat but does not generate it. We can lay the comparison of a spark plug to a heat exchanger. This is because it takes thermal energy away from the ignition chamber and takes it to the cooling system in the engine.
The range of heat in the spark plug is its ability to dispel heat. A spark plug is a very important performance part in any engine. It will surely ensure the heat cycle is very complete in an engine thus making it very efficient. The carmaker usually chooses the right spark plug for each car.

 

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