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Kinds of spark plugs

The release date:2019-11-29viewed:2873
Kinds of spark plugs

What is a resistor spark plug?

It incorporates a ceramic resistor to suppress ignition noise generated during sparking.Resistor spark plugs prevent electrical interference that can disrupt car radio reception, two-way radio and cellular phone operation. This type of spark plug also prevents electrical noise from interfering with the operation of the computer in the engine.Noise suppression effects of a resistor spark plug

 What is a V-grooved type spark plug?




It has a 90°V-groove in the tip of the center electrode to enhance ignitability. The V-groove ensures that the spark is directed to either left or right edge of the electrodes. The flame core is generated near the perimeter of the electrodes and grows.Ignitability is improved because the electrodes are interfering less when the flame core growing.

What’s a U-grooved type spark plug?

What types of spark plugs can be more resistant to carbon fouling?

The configuration of the creeping spark plug is that the spark is struck along the surface of the insulator of the ignition portion. Such spark plugs have Intermittent discharge, Supplementary gap and Semi-surface discharge.


Features:Intermittent discharge




Spark discharge at intermittent gaps burn away the carbon on the insulator to suppress a decline of insulation resistance.



Spark discharge at the supplementary gap burns away the carbon on the insulator to suppress a decline of insulation resistance. The small clearance between the insulator supplementary gap prevents the carbon-included combustion gasses from entering the gas volume. This reduces the carbon accumulation on the insulator.



The wide gap of semi-surface discharge type improves ignition capability and is less sensitive to voltage requirement increases due to gap growth. Semi-surface discharge plugs burn away the carbon on the insulator nose to suppress a decline of insulator resistance.


What’s the features of variety of spark plugs?

There are large gap spark plugs, protruding spark plugs, iridium alloy spark plugs, long thread spark plugs, half thread type spark plugs, and pocket spark plugs for industrial engines, which have the following features.






large gap spark plug
protruding spark plug
Iridium alloy spark plug
long thread spark plug

half thread type spark plug

Special thread shape spark plug with small thread diameter. Just for specific vehicles only.

pocket spark plugs

Smaller, lighter, and compact spark plugs are commonly used in small engines such as chain saws and mowing.

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