A simple technique has been developed for measuring the noise radiated by diesel engine surfaces in response to combustion excitation. Results using this technique correlate well with the established computer-based analysis technique. Combustion noise measurements from a direct injection engine show increases of 3dB(A) as fuel cetane number is reduced from 50 to 40CN. Combustion noise in high speed direct injection engines is much greater than in comparable indirect injection engines, and a fundamental study is described which indicates the rate of heat release diagrams required to minimise and optimise combustion noise. This work is supported by engine results with pilot injection which gave reductions of 5 to 8dB(A).


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Combustion Noise from High Speed Direct Injection Diesel Engines


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE Surface Vehicle Noise and Vibration Conference ; 1985



    Publication date :

    1985-05-15




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Combustion noise from high speed direct injection diesel engines

    Russell,M.F. / Haeorth,R. / Lucas CAV,Lucas Industries Noise Centre,GB | Automotive engineering | 1985


    High speed direct injection diesel engines

    McPherson,I. / Ford of Europe,GB | Automotive engineering | 1982


    Developing High Speed Direct Injection Diesel Engines

    Wittek, H. L. / List, Hans / Pachernegg, S. | SAE Technical Papers | 1965


    Combustion Chamber Shape and Pressurized Injection in High-Speed Direct-Injection Diesel Engines

    Kaneko, Jiro / Ikegami, Makoto / Fukuda, Masanori et al. | SAE Technical Papers | 1990


    Combustion chamber shape and pressurized injection in high-speed direct-injection diesel engines

    Ikegami,M. / Fukuda,M. / Yoshihara,Y. et al. | Automotive engineering | 1990