COMMERCIAL ASPECT OF THE SOUND INSULATION OF DIESEL ENGINES

A coating material to be bonded directly to the external surfaces of the engine is described. The basis of the palliative pad is a highly damping material made up of a laminate of heavyweight materials and varied glue lines. The glue lines, of course, must also be impervious to automobile fluids and the temperature cycles which are met on the diesel engine. The procedure involves considerable testing to ascertain the best performance for the least material used, bearing in mind that the maximum thickness allowed is normally only 6mm. When painted, the treatment becomes unobstrusive. The technique of approaching the required reduction in noise level from a diesel engine is one of progressive testing. Ideally, the initial equipment should be bonded to all known suitable parts of the engine and then removed progressively to achieve the shape, form and performance which is required. The parts of the diesel which respond would be the Front Engine Plate, Side Engine Plate, Rocker Box, Block and Sump. Typical treatment is shown.

• Corporate Authors:

  Trade and Technical Press, Limited

  Crown House
  Morden, Surrey SM4 5EW,   England 
• Authors:
  • Garrett, P
• Publication Date: 1975-11

Media Info

• Pagination: p. 337-339
• Serial:
  • Noise Control and Vibration Insulation
  • Volume: 6
  • Issue Number: 11
  • Publisher: Trade and Technical Press, Limited

Subject/Index Terms

• TRT Terms: Damping (Physics); Diesel engines; Environmental impacts; Noise; Noise control
• Old TRIS Terms: Diesel engine noise; Noise attenuation
• Subject Areas: Environment; Railroads;

Filing Info

• Accession Number: 00142290
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Dec 15 1976 12:00AM