Internal-combustion engines – High tension ignition system – Using capacitive storage and discharge for spark energy
Patent
1989-11-21
1991-03-05
Argenbright, Tony M.
Internal-combustion engines
High tension ignition system
Using capacitive storage and discharge for spark energy
123620, 123627, 123654, 123656, F02P 306, F02P 302
Patent
active
049969676
ABSTRACT:
An apparatus and method for generating a highly conductive channel for the flow of plasma current between the electrodes of an ignitor gap device are disclosed. A high voltage transformer having a high turns ratio is used to produce a high voltage spark across an ignitor gap. Subsequently, a high voltage low turns ratio transformer is used to supply a pre-plasma current signal to the ignitor gap at a predetermined time following the high voltage spark thereby ensuring that the ionized channel is developed to a more conductive state prior to introduction of the pre-plasma signal into the ignitor gap. Once the sustaining voltage for sustaining plasma flow through the channel has stabilized to a sufficiently low voltage, a high current main plasma signal is supplied to the ignitor gap thereby expanding plasma flow in the area surrounding the ignitor gap and providing a high quality ignition source for use in internal combustion engines.
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Rosswurm Mark A.
Tozzi Luigi
Argenbright Tony M.
Cummins Engine Company, Inc.
Mates Robert E.
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