Modeling of voltaic pile surface formation using current-carrying cassini ovals

Abstract

In this paper, the possibility of increasing the surface of an electric discharge in ignition devices of a working mixture of internal combustion engines is analyzed. There are results of simulating the change in the shape of the lower end of the spark plug central electrode from the flat to conductive Cassini ovals. The obtained results have given possibility for creating an extended electric discharge surface in the form of voltaic piles with a cross-section in the form of Cassini ovals. Extension of electric discharge surface makes it possible to increase spark gap, to create additional two axes of concentration of thermal energy and simultaneously to increase the air-fuel mixture flammability efficiency. Keywords: Spark plug, Cassini ovals, Voltaic piles, Fuel mixture