Method for obtaining increased spark-length in IC engine

摘要

An increase in the electric spark in an IC engine occurs when the electrode distance is immediately increased after the first high voltage strike. With the ignition, a somehow special force moves one of the two electrodes from the other. The centre electrode 93) is arranged in conventional fashion and the earth electrode (4) is electrically connected with the spark plug thread 97). The earth electrode is designed to be movable, being moved by the electromagnet (5). This is in a series circuit for the primary current of the spark coil. During primary current flow, the electrode distance is small. When the primary current is interrupted and with the smallest gap the spark jumps across the gap and with the duration of the spark, the earth electrode is moved in spring-controlled fashion so that the spark is increased.