CS251225B1 - Spark plug for internal combustion engines - Google Patents

Abstract

The aim of the solution is to increase the service life and reliability of the spark plug. The spark plug for internal combustion engines comprises a housing with a side electrode and an insulator with a thermal cone and a central hole, in which a heat-dissipating insert, a central electrode and a head, a seal and a contact post are located. In the spark plug, the insulator on the side of the central electrode is provided with a collar, to which one face of the heat-dissipating insert abuts and the other face abuts the head of the central electrode, with the inner and outer surfaces of the insert having contact with the corresponding surfaces of the insulator and the central electrode.

Description

- 1 - 3aHBneHo: 15.02.80

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Claims (1)

SUMMARY OF THE INVENTION A spark plug for internal combustion engines comprising a housing with a side electrode and an insulator with a thermal cone having a central opening in which a heat sink is housed, a central electrode with a head, a seal and a contact column, is characterized in that a collar, the one-piece heat-dissipating liner is attached to the bar, the other face is in contact with the central-center electrode, the inner and outer surfaces of the liner being in contact with the corresponding surfaces of the insulator and the centering electrode.