Method for surface treatment of electrode in distributor of inte

Details Method for surface treatment of electrode in distributor of inte Method for surface treatment of electrode in distributor of inte

1975-06-18

1976-11-16

Hoffman, James R.

Metal treatment

Compositions

Heat treating

148 631, 148 635, 427 34, 427 58, 427123, 427126, B05D 512, C23C 1108, F02P 702, H04B 1502

Patent

active

039922308

ABSTRACT:
Using a plasma arc coating process or a thermospraying process or a detonation process an electrode of a rotor of a distributor for the ignition system of an internal combustion engine was surface treated to provide the electrode with a surface layer of an electrically high resistive material, e.g. CuO. A distributor having the treated rotor included therein exhibited significantly suppressed noise. Instead of or in addition to the rotor, each of the stationary terminals of the distributor may be so treated.

REFERENCES:
patent: 2464533 (1949-03-01), Shearer
patent: 3209298 (1965-09-01), Evanicsko et al.
patent: 3609257 (1971-09-01), Jinsenji

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