Spark Plugs Of Gas Generator Sets

Spark plugs of gas generator sets are ignition components specifically designed for gaseous fuels such as natural gas, biogas, and liquefied petroleum gas (LPG). Their working environment and performance requirements are significantly different from those of gasoline/diesel engine spark plugs. The following is a detailed analysis of Spark plugs of gas generator sets :

Fuel characteristics

Gaseous fuels have a high ignition point (such as methane, which needs to be above 650°C), and thus require a stronger spark energy.

The combustion speed of the mixed gas is slow, and more precise ignition timing is required Harsh working conditions

Continuous operation (24/7 power generation), high compression ratio (above 10:1), lean-burn (to reduce NOx emissions).

High-energy ignition

Iridium or platinum electrodes (with a finer diameter to concentrate spark energy) are used.

The ignition voltage can reach over 40kV (about 20-30kV for ordinary gasoline engines).

High-temperature corrosion resistance

The electrode coating contains high-temperature oxidation resistant materials such as yttrium and ruthenium.

The insulator is made of high-purity alumina ceramic (with a temperature resistance of 1500°C).

Anti-carbon deposit and anti-fouling

Special surface treatments (such as nickel plating and gold coating) prevent the adhesion of gas impurities.

The wide gap design (1.0-1.3mm) is suitable for lean combustion

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