| A |
Lengthen out the surface distance in the insulator surface
to restrict any possible discharge.
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| B |
High strength and surface protection against corrosion.
|
| C |
Secures gas-tightness of the combustion chamber and good heat removal from the spark-plug to the cylinder head.
|
| D |
High resistance to burn off, high thermal conductivity.
|
| E |
Its shape facilities regulation of heat removal from the combustion chamber.
|
| F |
Made of steel wire resistance to vibrations; it's lower part is designed for tight attachment of the high-voltage supply.
|
| G |
High Aluminium Trioxide (AL2O3) content provides high insulating resistance, good thermal conductivity and mechanical strength.
|
| H |
Basic functions :
a) Mechanical connection of the insulator, pin and central electrode.
b) Electrical connection of the pin and central electrode.
c) Gas-tightness of the combustion chamber in shrouded spark-plugs - shielded emission of electromagnetic radiation -
two contacting layers and one resistance layer.
|
| I |
Provides gas-tightness of the combustion chamber, perfect heat transfer from the combustion chamber to the spark plug casing.
|
| J |
With high resistance against burn-off and good thermal conductivity.
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