Ignition distributor electrode for suppressing radio frequency i

Details Ignition distributor electrode for suppressing radio frequency i Ignition distributor electrode for suppressing radio frequency i

1978-01-09

1979-08-21

Scott, James R.

Electricity: circuit makers and breakers

Periodic

Contact breaker detail

1231465A, 123148R, 123148P, 200 19R, 200262, 200264, H01H 1900, H01H 100

Patent

active

041654528

ABSTRACT:
An ignition distributor for an internal combustion engine is provided with a novel rotor electrode which substantially reduces radio frequency interference generated by spark discharges across the rotor gap. At least the tip segment of the rotor electrode is formed of a composite material consisting of a dielectric phase interspersed with a conductive metal phase. In operation, the dielectric phase protrudes from the surface of the electrode promoting ionization in the rotor gap so that electrical discharge occurs at voltages where radio frequency signal production is substantially suppressed.

REFERENCES:
patent: 1395269 (1921-11-01), Gebauer
patent: 2294783 (1942-09-01), Ely
patent: 3317773 (1967-05-01), Inoue
patent: 4007342 (1977-02-01), Makino et al.
patent: 4039787 (1977-08-01), Hori et al.
patent: 4074090 (1978-02-01), Hayashi et al.
patent: 4091245 (1978-05-01), Komiyama et al.

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