A study was undertaken to eliminate the various production and service problems that have been attributed to the drain mechanism in the fuel injection assembly of the diesel engine. After a careful study and analysis of contemporary drainless injection systems, a suitable drainless injector system was devised and installed on a Perkins D3900K diesel engine. A detailed investigation was made on the combustion data taken from the delivery valve relief stroke, the clearance between the needle and the nozzle body, and the cavity above the needle in order to determine their influence on the performance of the new drainless injection system. By further analyzing data gathered from the fuel injection rates and pressures, cavity phenomena, needle and delivery valve lift rates, and general engine performance, the efficiency and reliability of the new drainless fuel injection system was proven. Elimination of the drain also led to a reduction of the general dimensions and to the discontinuance of the manufacture and service of an unnecessary component.

Media Info

  • Features: References;
  • Pagination: 20p.

Subject/Index Terms

Filing Info

  • Accession Number: 00660598
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM