INTRODUCTION of the closed body made the car silencing problem more difficult by adding “drumming” as another type of noise, it being a low-frequency noise periodic in character and associated with resonance phenomena. Studies on engine balance, engine mountings, intake and exhaust silencing, and related studies, were made by the General Motors Research Laboratories to determine the sources of the noises and provide means for their suppression.Sources of periodic excitation of the body may be due (a) to vibration of the engine on its mountings and the transmission of such vibration to the body; (b) mechanical out-of-balance of any part of the drive train, the cooling fan and the tires; and (c) exhaust and intake-system resonance. After much previous research work, major attention was directed to the silencing of the intake and exhaust systems. An extensive laboratory investigation was conducted on “power roar”; but, after the noise sources in the intake system had been determined, their elimination seemed impracticable and it remained to develop a satisfactory type of silencer to be added to the conventional type of carburetor and manifold.A description of this development is given, together with that of an exhaust silencer which also utilizes the principle of resonance silencing. In conclusion it is stated that the intake silencer has permitted a gain to be made in specific power per cubic inch of cylinder displacement as, by its use, the silencer has made possible a wider choice of valve timing without restriction by noise limitations.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Various Methods of Analyzing Intake-Silencer Problems


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Wilson, E. E. (Autor:in) / Almen, J. O. (Autor:in)

    Kongress:

    Pre-1964 SAE Technical Papers ; 1906



    Erscheinungsdatum :

    1934-01-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Silencer for air suspension intake and exhaust system

    GUO SUJIE / LI YOUYI / YANG SHUKAI et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    Compact High-Pressure Intake Silencer with Multilayer Porous Material

    Broatch, Alberto / Torregrosa, Antonio J. / Migaud, Jerome et al. | SAE Technical Papers | 2016


    SILENCER

    NAKAE SHUJI / HAYASHI KENTARO / NAGASHIRO YUKIHIDE et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    SILENCER

    PARK SEONG JONG | Europäisches Patentamt | 2017

    Freier Zugriff

    Silencer

    NAGANO MASAHIRO | Europäisches Patentamt | 2023

    Freier Zugriff