Ignition distributor for an internal combustion engine

Details Ignition distributor for an internal combustion engine Ignition distributor for an internal combustion engine

1988-03-11

1989-05-23

Scott, J. R.

Electricity: circuit makers and breakers

Periodic

Contact breaker detail

H01H 100, H01H 1900, F02P 702

Patent

active

048332828

ABSTRACT:
An ignition distributor for an internal combustion engine has a cylindrical distributor rotor of synthetic resin, rotated synchronously with the revolution of the engine, and a rotor electrode radially and outwardly extending from the central portion on the upper surface of the rotor. A plurality of circumferential electrodes are disposed in the rotating locus of the rotor and are separated from the rotor electrode by a discharge gap. The rotor electrode has the shape of letter T a vertical portion of which is fixed to the distributor rotor and a horizontal portion of which opposes to the circumferential electrode, being in the shape of a circular segment. The surface of the rotor electrode horizontal portion opposing to the respective circumferential electrodes is formed to have a rugged or wavy profile comprising a plurality of peaks and the rugged surface is coated with a dielectric material such as silicon varnish to provide a low discharge voltage and reduced radio frequency interference in prolonged use.

REFERENCES:
patent: 4074090 (1978-02-01), Hayashi et al.
patent: 4135066 (1979-01-01), Yamanaka et al.
patent: 4165452 (1979-08-01), Olander et al.
patent: 4166201 (1979-08-01), Olander et al.
patent: 4208554 (1980-06-01), Sprague
patent: 4425485 (1984-01-01), Sone et al.
patent: 4631369 (1986-12-01), Ohashi

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