Abstract
Analytical methodology for testing Common Rail fuel injectors in problematic cases
Highlights
Common rail fuel injectors are the most susceptible to damage elements of the fuel systems in modern compression-ignition engines [5]
This applies to both non-invasive techniques, allowing to locate a malfunctioning fuel injector without the need to remove it from the engine, and invasive techniques, thanks to which it is possible to identify the causes of failure and eliminate them in tests on test benches
The simplified structure allows the regeneration to be carried out Before starting the tests, the fuel injector was mounted on a test bench and rinsed thermochemically. This decision was made in order to remove possible impurities and Internal Diesel Injector Deposits (IDIDs), the presence of which adversely affects the method of fuel delivery [4, 9, 15]
Summary
Common rail fuel injectors are the most susceptible to damage elements of the fuel systems in modern compression-ignition engines [5]. Intensive research works on the development of various diagnostic methods have been carried out for several years This applies to both non-invasive techniques, allowing to locate a malfunctioning fuel injector without the need to remove it from the engine, and invasive techniques, thanks to which it is possible to identify the causes of failure and eliminate them in tests on test benches. The mathematical operations were carried out in the environment of Microsoft Excel spreadsheet, which enabled quick analysis of the experimental data This approach was convenient from the practical point of view, as it allows taking into account the results from any test bench without having to interfere with its software
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