DEVELOPMENT OF THE BORE-COOLED FUEL NOZZLE FOR IHI-SULZER LARGE-SIZE MARINE DIESEL ENGINES

With the increased power of engines and the use of low-grade fuel oils due to energy-saving requirements, the fuel valves of marine diesel engines are put under very severe working conditions. This often causes corrosion of the cooling jacket, gas leakage and early impairment of fuel atomization, which considerably shorten the service life of the fuel valves. In order that such troubles may be prevented, especially in terms of maintenance, a bore-cooled type fuel nozzle that extends the overhaul intervals by being able to withstand very severe working conditions without deterioration of its performance has been developed. By introducing the bore cooling design, the use of the shrunk-on jacket can be eliminated and gas leaking from the shrink tip part completely prevented. The cooling of the nozzle is ensured with the nozzle surface. The improvement of the needle tip angle and material not only contributes to the prevention of early impairement of fuel atomization but also prolongs the service life of the valves to one year from dock to dock, without overhauling.

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• Corporate Authors:

  Ishikawajima-Harima Heavy Industries Co., Ltd.

  2-16, Toyosu 3 Chome, Koto-Ku
  Tokyo 135,   Japan 
• Authors:
  • MASUDA, K
• Publication Date: 1976-7

Media Info

• Pagination: p. 31-40
• Serial:
  • IHI Engineering Review
  • Volume: 9
  • Issue Number: 3
  • ISSN: 0018-9820

Subject/Index Terms

• TRT Terms: Diesel engines; Diesel fuels; Fuel injection; Fuel systems; Vehicle maintenance
• Old TRIS Terms: Diesel maintenance; Fuel atomization
• Subject Areas: Maintenance and Preservation; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00149631
• Record Type: Publication
• Source Agency: Ishikawajima-Harima Heavy Industries Co., Ltd.
• Files: TRIS
• Created Date: Apr 13 1977 12:00AM