The electrical principle of operation, the geometrical and electrical circuit constraints on the design of, and the electrical and in-engine performance of a multigap spark plug developed for automotive applications are described.The electrical principle of operation is based on successively breaking down an array of spark gaps through the use of a resistive ladder network.The measurements evaluating the electrical performance of various multigap designs indicate that these plugs can deliver up to twice the energy of a single gap plug to the arcs, using the same ignition system. The increased amount of energy is also delivered in a shorter time than for single gap plugs.The measurements evaluating the in-engine performance of these plugs further indicate that improvements of up to 6% in fuel economy for a simulated CVS test run, the extension of the lean misfire limit by several A/F ratio numbers under various engine operating conditions, and improvements in driveability can be achieved compared to the performance of standard plugs under the same operating conditions.


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    Titel :

    The Performance of a Multigap Spark Plug Designed for Automotive Applications


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Turner, A. H. (Autor:in) / Bates, B. (Autor:in) / Amey, J. E. (Autor:in) / Rado, W. G. (Autor:in)

    Kongress:

    1976 Automotive Engineering Congress and Exposition ; 1976



    Erscheinungsdatum :

    1976-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    The performance of a multigap spark plug designed for automotive applications

    Rado,W.G. / Amey,J.E. / Bates,B. et al. | Kraftfahrwesen | 1976


    Development of new automotive spark plug

    Edwards, W.R. / Roy, G.E. | Engineering Index Backfile | 1967


    SPARK PLUG PROBLEMS IN AUTOMOTIVE SERVICE

    Chalk, H. J. / Roench, M. M. / Beaubier, R. C. | SAE Technical Papers | 1952


    Erosion Mechanisms of Automotive Spark Plug Electrodes

    Young, C. T. / Grimes, D. A. | SAE Technical Papers | 1978


    Development of a New Automotive Spark Plug

    Roy, Gerald E. / Edwards, William R. | SAE Technical Papers | 1967