The British government, in cooperation with the Motor Industry Research Association, the Institute of Sound and Vibration Research, the Transport and Road Research Laboratory and manufacturing industry, mounted a long term project to develop and build prototypes of two quiet, heavy vehicles- one with a 200bhp engine and the other with a 350bhp engine. The research target for the vehicles was a noise level at least 10dBA lower than the appropriate value required by the present Construction and Use Regulations. That is, they are not to exceed 82dBA in standard test conditions. This article describes the methods and equipment used by the Perkins Engines Group in their intensive research program to investigate the diesel engine noise problem. In order to assess new ideas for engine noise reduction and help test the predictive techniques using the finite element method, a research engine was built. It was based on the internal parts of a current production four cylinder 4.236 engine. Test on the first phase of the research engine project revealed that a reduction of nearly 11dBA has been achieved on cylinder block noise when compared with the production engine cylinder block.

  • Corporate Authors:

    Trade and Technical Press, Limited

    Crown House
    Morden, Surrey SM4 5EW,   England 
  • Authors:
    • ROGERS, A
  • Publication Date: 1978-11

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00197274
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 28 1979 12:00AM