Ignition distributor for internal combustion engine.

摘要

An ignition distributor for an internal combustion engine comprises a distributing rotor (1) which rotates about a rotational axis (A) in synchronism with the internal combustion engine and a distributing cap adapted to enclose the distributing rotor (1). The distributing rotor (1) has a rotor electrode (2) mounted away from the rotational axis (A). The rotor electrode (2) has a tip end (2a) which extends along a circular path that the rotor electrode (2) describes when it rotates. The distributing cap is provided with side electrodes disposed concentrically with the distributing rotor (1) and oppositely to the tip end (2a) with a predetermined gap between the side electrodes and the tip end (2a). The tip end (2a) is covered by a dielectric member (8) only in part in a direction transversely of the circular path. The tip end (2a) may be provided with a recess extending along said circular path for receiving the dielectric member (8) therein.