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spark plug details

A spark plug is a device used to transfer electricity from the ignition system to the combustion chamber of the engine and ignite the compressed fuel/air mixture. The spark plug has a metal threaded shell and is electrically isolated from the centre electrode by a ceramic insulator. The centre electrode, which may contain a resistor, is connected to the output terminal of the ignition coil or magneto by a highly insulated wire. The metal shell of the spark plug is screwed into the cylinder head of the engine, so it is electrically grounded. The centre electrode protrudes into the combustion chamber through a porcelain insulator, at the inner end of the centre electrode and usually, one or more are connected to the inner end of the threaded shell and designated side, ground, or ground electrodes.

The role of the spark plug is to generate a spark at a specified time to ignite the combustible mixture. The plug is connected to the high voltage generated by the ignition coil or magneto. When current flows from the coil, a voltage is generated between the centre electrode and the side electrodes. Initially, no current can flow because the fuel and air in the gap are insulators, but as the voltage rises further, it begins to change the gas structure between the electrodes. Once the voltage exceeds the dielectric strength of the gas, the gas is ionized. The ionized gas becomes a conductor and allows current to flow through the gap. The intense heat in the spark channel causes the ionized gas to expand very rapidly, like a small explosion.

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spark plug Faq

What does a spark plug do?

Your spark plugs are what supply the spark that ignites the air/fuel mixture, creating the explosion which makes your engine produce power. These small but simple plugs create an arc of electricity across two leads which are not touching, but close enough together that electricity can jump the gap between them.

What kind of spark plug does a generator take?

Based on our experience, the vast majority of portable generators need a spark plug with a gap size of 0.028″ – 0.031″ (0.7 mm – 0.8 mm)

spark plug factory

Founded in 2015, BISON is a China modern parts & accessories factory integrating design, manufacturing, wholesale, outlet services. Now, we've grown into a major spark plug manufacturer, with over 500 million dollars in annual sales.

Why us? Here are some reasons why you should choose BISON:

  • √ Establish long term relations with 100+ global, happy customers from more than 60 countries.
  • √ During 7 years of development, we often participate in different exhibitions.
  • √ BISON can not only process OEM orders, but also stock products for wholesale.
spark plug factory

Best parts & accessoriess according to our clients

In addition to , BISON also wholesales other spark plug. Not looking for that? no problem! A few of our customers favorites are displayed on the left.

No matter the appearance, specifications or brand in the picture, everything can be customized to fit your needs. And we also provide a wide range of spark plug accessories.

In addition, BISON also provide images, PDFs, videos, etc. to help you develop your business. Contact BISON immediately to wholesale .

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