Methods of reducing the noise level of a diesel engine include the suppression of the major modes of block vibration and treatment of the external surfaces. Design methods enable the frequencies and noise levels of these modes to be calculated for a conventionally designed engine.The important modes of vibration, the noise signature and the effect of block modifications of a standard production V-8 engine were found by experiments. These provided the basis for the design of an experimental low-noise engine. Design features include a suffer block, removal of the bottom part of the crankcase skirt, the addition of a single bearing beam, and the use of isolated panels and damped surfaces. The noise reduction obtained was 9 dBA. Most of this is due to the use of isolated and damped nonload carrying surfaces.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Design Aspects of Low-Noise Diesel Engines


    Additional title:

    Sae Technical Papers


    Contributors:
    Grover, E. C. (author) / Lalor, N. (author) / Jenkins, S. H. (author)

    Conference:

    1973 International Automotive Engineering Congress and Exposition ; 1973



    Publication date :

    1973-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Combustion noise design of modern diesel engines

    Gavric,L. / Peronnet,C. / Lafon,B. et al. | Automotive engineering | 2013


    Noise radiation from diesel engines

    Astrupp,T. | Automotive engineering | 1985


    Some aspects of cooling system design for diesel engines

    Koffman, J.L. | Engineering Index Backfile | 1951


    Noise Assessment of Diesel Engines

    Gaikwad, Atul / Mahale, Prashant / Raju, S. | SAE Technical Papers | 2007


    Material Aspects in Mercedes Benz Diesel Engines

    Sigwart, Hans E. | SAE Technical Papers | 1965