Patent ID: 7448352
Filing Date: 2008-11-11
Classification: F02B,F02P

Abstract:
1. A centrally located ignition source for initiating combustion, comprising: an elongated combustion chamber having opposing first and second ends; an elongate electrical delivery conductor having a base end; an elongate electrical ground conductor having an electrically grounded end; an electrical supply conductor disposed externally to the combustion chamber and periodically communicating electrically with the base end of the electrical delivery conductor; and, a wall rotating relative to said electrical supply conductor, said electrical supply conductor having a contact brush extending therefrom, the brush periodically communicating electrically with the base end of said electrical delivery conductor in accordance with rotation of the combustion chamber wall, the base end of the elongate electrical delivery conductor being secured to a first side of the wall, an electrode end thereof being disposed within the combustion chamber opposite the base end, the electrically grounded end of the elongate electrical ground conductor being mechanically and electrically connected to a second side of the wall, and an electrode end of the elongate electrical ground conductor being disposed within the combustion chamber opposite the electrically grounded end thereof, the electrode end of the electrical delivery conductor and the electrode end of the electrical ground conductor defining an ignition spark gap therebetween, the spark gap being disposed centrally between the opposing ends of the combustion chamber, the electrically grounded end being received within a recess formed in the second side of the wall, the electrically grounded end being selectively positionable with respect to the wall to selectively adjust a width of the ignition spark gap.