Ignition distributor having electrodes with thermistor dischargi

Details Ignition distributor having electrodes with thermistor dischargi Ignition distributor having electrodes with thermistor dischargi

1980-11-21

1983-01-18

Scott, J. R.

Electricity: circuit makers and breakers

Periodic

Contact breaker detail

1231465R, 123633, 200 19DR, 200 19DC, H01H 1900, F02P 100

Patent

active

043693431

ABSTRACT:
An apparatus for suppressing noise radiating from an ignition system for an internal combustion engine is disclosed. The ignition system comprises a distributor which uses an electrically conductive ceramic or a PTC (Positive Temperature Coefficient) thermistor as a material for a rotary electrode and/or stationary electrodes. At least a spark discharging portion of the rotary electrode and/or spark discharging portions of the stationary electrodes are formed from the electrically conductive ceramic which has a resistivity ranging from 10.sup.-6 to 10.sup.-2 ohm.multidot.cm or from the PTC thermistor. Cooperating with them are the high resistor spark plug and the high tension resistor cable. The high resistor spark plug herein disclosed uses an elongate monolithic resistor which has a length not shorter than 8 mm and preferrably has a length of 15 mm.

REFERENCES:
patent: 4039787 (1977-08-01), Hori et al.
patent: 4135066 (1979-01-01), Yamanaka et al.
patent: 4217470 (1980-08-01), Kirher

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