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SAE International (Society of Automotive Engineers) is a global professional association and standards organization for engineering professionals in various industries. SAE Papers are written and peer-reviewed by experts in the automotive, aerospace, and commercial vehicle industries. These papers are published in SAE industry specific journals aimed to serve the needs of academic and industry authors, researchers, and readers in a medium tailored for the discovery, integration, and application of research. In addition to being identified as some of the best published work at SAE International, these papers advance self-propelled vehicle and system knowledge in a neutral forum for the benefit of society.

Paper Number: 02FFL-204
Published: October 2002
Authors & Affiliations:
G. J. Rohwein
UHp, Inc.

Louis J. Camilli
Combustion Technology Products Corp.

This paper studies an innovative automotive technology, peaking capacitors in the high voltage circuit of the ignition system; which are used in conjunction with automotive spark plugs. The findings in this paper came from research and testing in a controlled laboratory setting. The data show that peaking capacitors produced a larger spark, and a larger than normal flame kernel which results in improved combustion more consistently, increased torque, and improved fuel economy. There is evidence that exhaust emissions can be also be reduced. These findings clearly demonstrate that a peaking capacitor like the ones that are found in Pulstar spark plugs produce a bigger spark; improving combustion, increasing torque, and improving fuel economy.