Silencing can no longer be considered as a designer's afterthought, and future vehicles must have efficient silencing of all noise sources as an inbuilt design parameter. This applies as much to competition as to touring engines in view of recent international ruling, yet power characteristics must not be adversely affected. This paper describes intake and exhaust silencing studies carried out at the University of Manchester on competition and touring motorcycles, in particular using annular cavity silencing units. A 4-stroke 750 cc twin, 2-stroke 380 cc single, and a 4-stroke 500 cc single cylinder Speedway machine are considered. Noise reductions are typically 12-20 dBA (intake) and 15-30 dBA (exhaust) with improved power characteristics. (Wassmann)


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    Titel :

    The design and development of intake and exhaust silencers for high performance motorcycle engines


    Weitere Titelangaben:

    Die Auslegung und Entwicklung von Ansaug- und Abgasschalldaempfern fuer Hochleistungsmotorradmotoren


    Beteiligte:
    Roe, G.E. (Autor:in)


    Erscheinungsdatum :

    1978


    Format / Umfang :

    8 Seiten, 9 Bilder, 8 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    EXHAUST AND INTAKE SILENCERS

    HOYLE, R. L. | SAE Technical Papers | 1959


    Efficient Exhaust Silencers for Downsized Gasoline Engines

    Krueger, Jan / Conrath, Matthias / Pommerer, Michael | SAE Technical Papers | 2012


    Efficient Exhaust Silencers for Downsized Gasoline Engines

    Krueger, J. / Pommerer, M. / Conrath, M. | British Library Conference Proceedings | 2012


    Insertion loss of engine intake and exhaust silencers

    Callow,G.D. / Peat,K.S. / Loughborough Univ.of Technol.,Motor Ind.Res.Assoc.,GB | Kraftfahrwesen | 1988


    Progress on active exhaust silencers for gasoline engines

    Krueger,J. / Pommerer,M. / Frei,T. et al. | Kraftfahrwesen | 2011