Combustion Noise from High Speed Direct Injection Diesel Engines 850973
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).
Citation: Russell, M. and Haworth, R., "Combustion Noise from High Speed Direct Injection Diesel Engines," SAE Technical Paper 850973, 1985, https://doi.org/10.4271/850973. Download Citation
Author(s):
M. F. Russell, R. Haworth
Affiliated:
Lucas Industries Noise Centre, Lucas CAV Limited, Acton, London
Pages: 22
Event:
SAE Surface Vehicle Noise and Vibration Conference
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Surface Vehicle Noise and Vibration Conference Proceedings-P-161, SAE 1985 Transactions-V94-85
Related Topics:
Diesel / compression ignition engines
Cetane
Combustion and combustion processes
Noise
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