EVALUATION OF DIESEL ENGINE PERFORMANCE WITH INTAKE AND EXHAUST SYSTEM THROTTLING. VOLUME I: TEXT AND APPENDIXES A THROUGH H

The diesel engine itself is an important source of diesel powered vehicle noise, and becomes dominant after proper treatment of intake/exhaust and cooling system noise at vehicle speeds below fifty miles per hour. An investigation is reported, in two volumes, to quantify the effects of intake and exhaust restrictions, and load-speed scheduling on the radiated noise from four diesel truck engines, produced by different manufacturers. Sound power measurements were made in an acoustically modified engine performance test cell. The noise associated with intake, exhaust, cooling and their respective ducting systems were appropriately abated to permit quantification of engine radiated noise. Exhaust emission data including temperature and performance data were also monitored. Portions of this document are not fully legible.

• Supplemental Notes:
  • See also Volume 2, PB-247 753.
• Corporate Authors:

  Bartlesville Energy Technology Center

  Department of Energy
  Bartlesville, OK  United States  74003

  Transportation Systems Center

  55 Broadway, Kendall Square
  Cambridge, MA  United States  02142
• Authors:
  • Hern, R
  • Eccleston, B
  • Marshall, W
• Publication Date: 1975-11

Media Info

• Pagination: 148 p.

Subject/Index Terms

• TRT Terms: Acoustic measuring instruments; Acoustics; Calculation; Constraints; Diesel engines; Diesel trucks; Emission control systems; Engines; Environmental impacts; Exhaust gases; Intake valves; Measurement; Noise; Noise control; Noise sources; Performance; Performance tests; Pollution; Statistics; Temperature; Traffic noise; Transportation; Trucks
• Uncontrolled Terms: Computation; Noise reduction; Transportation noise
• Old TRIS Terms: Acoustic measurement; Constraining; Diesel engine noise; Engine noise; Intake systems; Truck noise
• Subject Areas: Data and Information Technology; Environment; Safety and Human Factors; Transportation (General); Vehicles and Equipment;

Filing Info

• Accession Number: 00093918
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt., DOT-TSC-OST-74-42.I
• Files: NTIS, TRIS
• Created Date: Mar 10 1977 12:00AM