THE PROBLEMS ASSOCIATED WITH BURNING HEAVY FUELS IN DIESEL ENGINES: A STUDY OF BLOW-BY THROUGH EXHAUST VALVE SEATS AS A RESULT OF BURNING HEAVY FUELS IN DIESEL ENGINES

Various problems occur with combustion chamber components, particularly exhaust valves, when diesel engines are operated on heavy fuel oil. The purpose of this study was to investigate the problem of blow-by through the valve seat and to find solutions. It was found that temperature elevation in the exhaust valve is caused by high temperature and high pressure combustion gas that blows at high velocity through local gaps. These gaps, resulting from bad seating of the valve seat, accelerate high temperature corrosion and enlarge bad seating parts. A method is described for improving exhaust valve seat durability by using a corrosion-resisting material.

Media Info

  • Features: References;
  • Pagination: 7p.

Subject/Index Terms

Filing Info

  • Accession Number: 00659768
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM