New types of double platinum spark plugs featuring an innovative high-voltage connection have been specifically designed for Audi vehicles using the next generation of compact plug top ignition coils.

The spark plugs from BorgWarner BERU Systems were developed for the 1.8 and 2.0-litre TFSI four-cylinder engines that will power the recently launched Audi A4 and A4 Avant series, and will replace current engines in the Audi A5, A5 Sportback and A5 Cabrio.

"Our new spark plugs for plug top ignition coils offer a combination of advanced technologies engineered to help optimise combustion for better fuel economy and lower emissions," said Brady Ericson, president and general manager at BorgWarner BERU Systems and Emission Systems.

The new plugs have also been designed to cope with the high-voltage requirements of modern direct-injection engines that require up to 40,000 volts compared with 20,000 to 30,000 volts in a naturally aspirated engine.

According to the manufacturer, the double platinum plugs feature an innovative "bowl" contact that optimises the connection between the spark plug and the internal compression spring of the plug top ignition coil.

"The 8.5 mm longer insulator increases the maximum ignition voltage and reduces arcing, while the double platinum tip reduces erosion for longer service life," the firm says.

Source:

BorgWarner BERU Systems Supplies New Double Platinum Spark Plugs for Audi's Four-Cylinder Engines (07/12/11) 

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