Method of making composite spark plug with capacitor
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United States of America Patent
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-
Mar 15, 2016
Grant Date -
Apr 23, 2015
app pub date -
Dec 29, 2014
filing date -
May 12, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A composite ignition device includes a positive electrode having a tip formed thereon that is bonded to a first insulator to form a firing cone assembly. A second insulator having a negative capacitive element embedded therein is attached to the firing cone assembly. A positive capacitive element is disposed in the second insulator and is separated from the negative capacitive element by the second insulator. The positive capacitive element is coupled to the positive electrode. The positive and negative capacitive elements form a capacitor. A resistor is coupled to the positive capacitive element. An electrical connector is coupled to the resistor and attached to the second insulator. A shell including a negative electrode having a tip is attached to the second insulator and the firing cone assembly and coupled to the negative capacitive element. The negative electrode tip is spaced apart from the positive electrode tip.
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