Didier-werke Ag

Martin Car

Erich Pohlmann

An ignition system in an internal combustion engine having a cylinder housing with an air or water cooled region achieves multiple ignition. The ignition system includes at least a pair of spark plugs electrically connected in series and including a first spark plug mounted in the cylinder housing while being isolated electrically therefrom and a second spark plug directly screwed into a cylinder head of the cylinder housing. The first spark plug is mounted within the air or water cooled region of the cylinder housing, thereby maintaining such spark plug at a relatively constant temperature, and avoiding the problem of the two spark plugs being subjected to different thermal stresses.

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Grossenhausen, Germany

Martin Car