Change in parameters and injection times of a divided fuel dose
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Publication date: 2013-09-01
Combustion Engines 2013,154(3), 51-59
This paper presents test results of the effect ofpreset interval time on calculated times andparameters of fuel injection. The measurements comprised tests on the test stand with the use of an electronically controlled injection dose indicator. Division of the dose into two parts was accomplished. The fuel pressure in the rail was maintained at a constant level. A substantial change in the injection parameters was shown, such as the flow rate offuel from the nozzle, andparticularly, calculated injection times, which are always greater than the total, preset ones. For a given pressure in the rail there exists a certain limit value of the interval, for which division of the dose into parts is accomplished. The introduction of gravity centres of injection runs is proposed to evaluate the process offuel dosage.
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