Multicenter electrode spark plug for high-voltage high igniting-energy axial-discharge internal combustion engine

The utility model discloses a multicenter electrode spark plug for a high-voltage high igniting-energy axial-discharge internal combustion engine. The multicenter electrode spark plug comprises a housing. A sealing washer is arranged on an outer surface of the housing, an insulation porcelain body is mounted in the housing, more than two discharge pole rods are disposed in the insulation porcelain body in a spaced manner and side electrodes corresponding to the discharge pole rods are arranged on an inner end of the housing. Each side electrode comprises an axial part and a radial part, wherein the axial part of each side electrode is connected with the inner end of the housing and the radial part of each side electrode is mounted in a manner of one-to-one correspondence with a discharge end of each discharge pole rod. An input terminal of each discharge pole rod is connected with a conductive rod. Disposing of the plurality of discharge pole rods provided by the utility model indeed realizes multi-electrode