Browse Publications Technical Papers 820238
1982-02-01

Diesel Engine Noise: Control at Source 820238

If the noise generating mechanisms inherent in a diesel engine design are analysed thoroughly, several alternatives for controlling the noise at source become apparent. Research has shown that there are several ways of modifying an engine structure to reduce the noise radiated by the external surfaces of the engine in response to combustion and mechanical forces developed within the engine. A combination of structural improvements and fairly modest reductions in the excitation, by incorporating a smoother combustion process and by minimising mechanical impacts between the working parts of the engine, could result in reductions in truck engine noise of up to 10 dB(A).

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