Internal-combustion engines – High tension ignition system – Additional spark energy supply
Patent
1991-08-23
1993-03-30
Wolfe, Willis R.
Internal-combustion engines
High tension ignition system
Additional spark energy supply
123656, F02P 1500
Patent
active
051974487
ABSTRACT:
An ignition system for hydrocarbon based fuels employing two energy sources, one to create a spark, and the other to sustain an arc. The ignition circuit is based in part on the principle of a strobe light circuit. The circuit increases ignition efficiency by increasing the power dissipated at the spark gap, particularly when used in conjunction with a surface gap spark plug. Maximum power transfer is achieved via impedance matching of the ignition system to a surface gap spark plug. The circuit is particularly appropriate for igniting extremely lean mixtures, highly diluted mixtures, and alternative fuels.
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"A Comparative Study of Plasma Ignition Systems," C. F. Edwards and A. K. Oppenheim, SAE Technical Paper Series, SAE The Engineering Resource For Advancing Mobility, International Congress & Exposition, Detroit, Mich., Feb. 28-Mar. 4, 1983.
Porreca Paul J.
VanDuyne Edward A.
Massachusetts Institute of Technology
Wolfe Willis R.
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