Development of an Image Analysis System to Rate Injectors from the Cummins L10 Injector Depositing Test

Blythe, Glen H.; Flask, Chris A.

doi:10.4271/972902

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…Some investigators have attempted to visually rate the outside of the injector tip as a measure of deposits [17,18,19,20]. Table 2 contains photographs of the exteriors of the nozzles after the tests from the present study, arranged in order of increasing change in IMEP.…”

Section: Visual Comparison Of Nozzle Exteriorsmentioning

confidence: 99%

Investigations on Deposit Formation in the Holes of Diesel Injector Nozzles

Birgel¹,

Ladommatos²,

Aleiferis³

et al. 2011

SAE Int. J. Fuels Lubr.

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Current developments in fuels and emissions regulations are resulting in an increasingly severe operating environment for diesel fuel injection systems. The formation of deposits within the holes or on the outside of the injector nozzle can affect the overall system performance. The rate of deposit formation is affected by a number of parameters, including operating conditions and fuel composition. For the work reported here an accelerated test procedure was developed to evaluate the relative importance of some of these parameters in a high pressure common rail fuel injection system. The resulting methodology produced measurable deposits in a custom made injector nozzle on a single cylinder engine. The results indicate that fuels containing 30%v/v and 100% Fatty Acid Methyl Ester (FAME), that does not meet EN 14214 produced more deposit than an EN590 petroleum diesel fuel. Overall, the addition of zinc to the fuel had the biggest effect on deposit formation and resulted in a 12.2% decrease in Indicated Mean Effective Pressure (IMEP). The effects of zinc were unexpectedly reduced when it was added to fuel containing 30%v/v biodiesel. Reducing the common-rail pressure with 30%v/v biodiesel (no added zinc) increased the loss in IMEP. Raising the air and fuel temperatures by 40°C and 30°C respectively showed no bigger loss in IMEP. The results indicate that deposit formation may continue after engine shut down.

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Section: Visual Comparison Of Nozzle Exteriorsmentioning

confidence: 99%

Investigations on Deposit Formation in the Holes of Diesel Injector Nozzles

Birgel¹,

Ladommatos²,

Aleiferis³

et al. 2011

SAE Int. J. Fuels Lubr.

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show abstract

“…Versions of this type of test were used in references e.g. by [5][6][7][8][9][10][11][12][13][14]. Hawthorne et al [15] comment on the severity of the test conditions of the DW10 test procedure relative to what is encountered in the field.…”

Section: Test Cycles and Optical Investigationsmentioning

confidence: 99%

“…However these papers do not investigate any influences on the creation of deposits. An image analysis system for the test applied in [10] is described in [14].…”

Section: Test Cycles and Optical Investigationsmentioning

confidence: 99%

Deposit Formation in the Holes of Diesel Injector Nozzles: A Critical Review

Birgel¹,

Ladommatos²,

Aleiferis³

et al. 2008

SAE Technical Paper Series

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Current developments in fuels and emissions regulations are resulting in increasingly severe operating environment for the injection system. Formation of deposits within the holes of the injector nozzle or on the outside of the injector tip may have an adverse effect on overall system performance. This paper provides a critical review of the current understanding of the main factors affecting deposit formation.Two main types of engine test cycles, which attempt to simulate field conditions, are described in the literature. The first type involves cycling between high and low load. The second involves steady state operation at constant speed either at medium or high load.

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A review on deposit formation in the injector of diesel engines running on biodiesel

Hoang

2018

Energy Sources, Part A: Recovery, Utilization, and Environmenta

108

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Development of an Image Analysis System to Rate Injectors from the Cummins L10 Injector Depositing Test

Cited by 3 publications

References 2 publications

Investigations on Deposit Formation in the Holes of Diesel Injector Nozzles

Investigations on Deposit Formation in the Holes of Diesel Injector Nozzles

Deposit Formation in the Holes of Diesel Injector Nozzles: A Critical Review

A review on deposit formation in the injector of diesel engines running on biodiesel

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