Microelectronic ignition method and ignition module with ignition spark burn-time prolonging for an internal combustion engine
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United States of America Patent
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Mar 9, 2004
Grant Date -
May 15, 2003
app pub date -
Aug 2, 2002
filing date -
Nov 13, 2001
priority date (Note) -
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Abstract
An electrical ignition for internal combustion engines having coils and a magnetic generator that rotates synchronously with the engine. The generator's magnetic field passes periodically through the coils and induces a sequence of corresponding alternating-voltage half-waves. These charge an energy-storage element, that is discharged by actuation of an ignition switch to trigger an ignition spark and they form the voltage supply of a microelectronic and/or programmable control that actuates the ignition switch in an ignition time instant as a function of the detected half-waves and/or of a rotational state of the engine. Within one rotation, there is chosen, for the triggering of the ignition spark to prolong its burn-time, a time interval in which the primary and/or secondary coil winding is influenced by one of the half waves and the amount or range of the magnetic flux change used to prolong the burn-time is greatest within the respective sequence.
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