ディーゼル機関における燃料噴射終りの噴射特性に関する研究 : 第2報, 噴射終りの延びと二次噴射について

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  • A Study of Characteristics at the End of Injection in Diesel Engine Fuel System : 2nd Report, Analysis of Secondary Injection and Delay of Injection End
  • ディーゼル キカン ニ オケル ネンリョウ フンシャ オワリ ノ フンシャ トクセイ ニ カンスル ケンキュウ 2

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This paper deals with the secondary injection and delay of injection end. Experimental studies show that delay of injection end becomes larger as the engine speed increases and that the minimum engine speed at which secondary injection takes place changes according to the control notch, delivery valve design, foreopening pressre at the injection valve, pipe or nozzle area, etc. On the assumption that there is a certain relation between pressures on the pump side and injection valve side, theoretical equations of secondary injection and delay of injection end are obtained by using the solution mentioned in the previous paper. Assuming suitable factors, the results obtained from these equations almost agreed with the experimental results. As the results, we can predict by calculation the secondary injection speed and delay of injection end in any fuel injection system.

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