Ignition cable means for eliminating inerference
OwnerTsai-Ting Taiinventor
Life of this patent
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Abstract
An ignition coaxial cable includes at least a braided layer of copper wires surrounding a central or inner conductor existing at a longitudinal center of the coaxial cable for shielding and grounding the interference caused by the high voltage carried by the cable, and an interference eliminating circuit having an inductor parallelly connected with a high-impedance resistor and connected in series with a low-impedance resistor to prevent the acute wave forms and to inhibit the surge waves caused by the high-tension voltage pulses delivered from the distributor to the plug, thereby eliminating the interference or electromagnetic interference caused by the high-tension cable and the plug of the car.
Claims9
An ignition cable means comprising:
- a coaxial cable (1) having a central conductor (11) connectable between a car distributor (5) and an engine plug (6), and at least a braided layer (12, 13) surrounding said central conductor (11) and grounded to the earth for shielding and grounding an interference emitted from a high voltage in the central conductor (11);
- and
- an interference eliminating means (2) inserted in between two cable sections (1a, 1b) of said coaxial cable (1), and including an inductor (1) parallelly connected with at least a resistor (R1) having impedance for limiting an ignition current in said cable, and connected in between said two cable sections (1a, 1b) for alternatively conducting a current in said resistor (R1) and said inductor (L) for making a smooth waveform of a high voltage pulse in said cable (1) for eliminating an interference caused from said cable (1).
Dependencies are inferred from the claim text.