Ignition coil assembly
AssigneeVisteon Global Technologies, Inc.
InventorsCarl Rudolph Morganti, Mark Joseph Bartasius, James Donald McCoy, Richard William Kautz, Tamra Kim Green
Life of this patent
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Abstract
An ignition coil assembly having a coil spring (26) made of electrically conductive material, an electrical coil connected to deliver electrical energy from the ignition coil assembly 11 through the coil spring and a ferromagnetic member (30) disposed within the coil spring. A resistive spark plug (40) is electrically coupled to the coil spring (26). The spark plug and ferromagnetic member (30) form a high pass filter (51) and low pass filter (58) respectively to reduce radio frequency interference.
Claims13
An ignition system comprising:
- a coil spring made of electrically conductive material;
- an a electrical coil connected to deliver electrical energy from said ignition coil assembly via said coil spring;
- a ferromagnetic member disposed within said coil spring;
- and
- a resistive spark plug electrically coupled to said coil spring.
An ignition system comprising:
- a coil spring made of electrically conductive material;
- an electrical coil connected to deliver electrical energy from said ignition coil assembly via said coil spring;
- a ferromagnetic member disposed within said coil spring, said coil spring, and said ferromagnetic member having a first inductance, a first resistance and a first capacitance forming a low pass filter;
- and
- a resistive spark plug electrically coupled to said coil spring, said spark plug having a second resistance and a second capacitance forming a high pass filter in series with said low pass filter.
Dependencies are inferred from the claim text.