Record Display for the EPA National Library Catalog


Main Title Demonstration of Noise Control for the DDA 6V-92TTA Heavy Duty Truck Diesel Engine.
Author DeJong, Richard G. ; Parsons, Natan E. ; Manning, Jerome E. ;
CORP Author Cambridge Collaborative, Inc., MA.;Environmental Protection Agency, Washington, DC. Office of Noise Abatement and Control.
Year Published 1982
Report Number EPA-68-01-4737; EPA-550/9-82-336;
Stock Number PB82-234295
Additional Subjects Truck engines ; Diesel engines ; Noise reduction ; Vibration ; Structural design ; Fuel injectors ; Pistons ; Noise pollution ; Allison 6V-92TTA engines ; Noise levels ; Engine modification
Library Call Number Additional Info Location Last
NTIS  PB82-234295 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 71p
This report presents the results of an engineering study to design and demonstrate methods of reducing diesel engine block vibration and radiated noise. The Detroit Diesel Allison 6V-92TTA heavy duty diesel truck engine was selected for the demonstration. This engine was structurally modified to reduce vibration and noise due to the unit injectors and piston-slap. The modifications were designed so that the noise reduction was achieved without degrading engine performance, fuel economy, or emissions. A 4dBA reduction of overall engine noise reduction was demonstrated.