CHARACTERISTICS OF A DIESEL SPRAY IMPINGING ON A FLAT WALL

In a small high-speed DI diesel engine, injected fuel sprays impinge on the wall of the piston cavity. Discussion and analysis of the combustion phenomena in the diesel engine demand the measurement of the characteristics of the impinging spray. In the experiments presented here, diesel fuel oil was injected into a high pressure chamber in which compressed air or CO2 gas at room temperature was charged. From these results, the detailed information concerning the droplets density in the impinging diesel spray was obtained. The effects of ambient density, distance from the wall to the nozzle, and injection pressure on the impinging spray were analyzed. Finally, the experimental equations of the radius and the height of the impinging spray were proposed as functions of the above mentioned variables. (A) For the covering abstract see IRRD 865952.

Language

  • English

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Filing Info

  • Accession Number: 00668303
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-89883-431-7
  • Files: ITRD
  • Created Date: Nov 2 1994 12:00AM