Detection of damage to the power supply system of diesel engine under field conditions
| Autor: | Piotr Orliński, M. Sikora, M. K. Wojs, Paweł Mazuruk |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
injector diagnostics
lcsh:T 020209 energy combustion engine 02 engineering and technology Diesel engine lcsh:Technology Atomic and Molecular Physics and Optics Automotive engineering Power (physics) 0202 electrical engineering electronic engineering information engineering Environmental science Electrical and Electronic Engineering common rail Field conditions acoustic emissions |
| Zdroj: | Combustion Engines, Vol 170, Iss 3, Pp 159-163 (2017) |
| ISSN: | 2658-1442 2300-9896 |
| Popis: | Fuel injection system damages is a major problem for internal combustion engines. Approximately 70% of the injection system malfunction is due to injector damages. Authors of the article tested an uniqe method of diagnosis injectors by using an acoustic emission. The acoustic emission signal (EA) is a phenomenon used in various field of technology and it is a wave generated in solid materials. The EA signal was measured during operation of damaged and undamaged injectors body in a few series, analized and verified in term of result obtain in response signals. The relationship between the acoustic emission signal and the injectors operating phases has been determined. On base of coefficient variation of the duration in the third phase the value of which increases substantially when the injectors are damaged were found in ranges of 45%. For corect working injectors value of coefficient variation were found in range from 21% to 37%. |
| Databáze: | OpenAIRE |
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