Importance

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Abstract

An improved ignition-combustion system for internal combustion engines with preferably a 2-valve engine 17/18 with dual-ignition 14a,14b with squish-flow channels 12a, 12b, and cylindrical high energy density pencil coils with open ends including biasing magnets 42a to 42d, the spark being 300 to 450 ma peak secondary current Is, and the primary current being 20 to 25 amps Ip of 60 to 100 turns Np, or bifiler turns of 120 to 200 turns of wire, with turns ratio Ns/Np of 50 to 70, and coil switches being 600 volt IGBTs; and power convertor with energy storage capacitor storing many times the coil energy of 80 mJ to 160 mJ, of 20 to 60) volts power supply, the engine operating with a single ignition firing of 80 to 16 mJ, except when it is cold started or requires multi-firing for better performance, such as under lean burn or high EGR operation.

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First Claim