Evaluation of changes in fuel delivery rate by electromagnetic injectors in a common rail system during simulated operation

• Autorzy: Kamiński Mariusz , Budzyński Piotr , Hunicz Jacek , Józwik Jerzy

Identyfikatory

DOI

10.17531/ein.2021.2.15

• Języki publikacji: EN

Abstrakty

EN

The objective of this study was to determine changes in fuel delivery rate by common rail system injectors during their simulated operation on a test stand. Four Bosch injectors used, among others, in Fiat 1.3 Multijet engines were tested. The injectors were operated on a test rig at room temperature for 500 hours (more than 72 million work cycles). During the test, pressure and injection frequency were changed. Changes in the operating parameters were estimated based on obtained injection characteristics and effective flow area determined thereby. The observed changes in fuel delivery rate were compared with results of the surface analysis of control valves and nozzle needles. Despite the stated lack of wear, significant changes in the dynamics of injector operation were observed, particularly at short injection times. Small pilot injections cannot be corrected by the fuel injection control system because they do not affect the changes in torque; however, they do affect the combustion process. This creates conditions for increased emission of toxic exhaust components.

Słowa kluczowe

EN

common rail; fuel delivery rate; injector operation

• Wydawca: Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
• Czasopismo: Eksploatacja i Niezawodność
• Rocznik: 2021
• Tom: Vol. 23, no. 2
• Strony: 352--358
• Opis fizyczny: Bibliogr. 33 poz., rys., tab.

Twórcy

autor

Kamiński Mariusz

• Faculty of Mechanical Engineering, Lublin University of Technology, ul. Nadbystrzycka 36, 20-618, Lublin, Poland

autor

Budzyński Piotr

• Faculty of Mechanical Engineering, Lublin University of Technology, ul. Nadbystrzycka 36, 20-618, Lublin, Poland

autor

Hunicz Jacek

• Faculty of Mechanical Engineering, Lublin University of Technology, ul. Nadbystrzycka 36, 20-618, Lublin, Poland

autor

Józwik Jerzy

• Faculty of Mechanical Engineering, Lublin University of Technology, ul. Nadbystrzycka 36, 20-618, Lublin, Poland

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).