Modelling of the low-pressure gas injector operation

• Autorzy: Szpica Dariusz , Kusznier Michał

Identyfikatory

DOI

10.2478/ama-2020-0005

• Języki publikacji: EN

Abstrakty

EN

In recent years, there has been a growing interest in alternative sources of power supply for internal combustion engines. Lique-fied petroleum gas injection systems are among the most popular. It becomes necessary to know mathematical descriptions of the opera-tion of individual components. The article presents a mathematical model that describes the operation of the low-pressure gas injector. Valtek plunger injector was chosen as the test object. The mathematical description includes three parts, i.e. electric, mechanical and pneumatic. The electrical part describes the generation of electromagnetic force by a circuit with a coil, in the mechanical equilibrium equa-tion of forces acting on the plunger, and in the pneumatic part the air pressure on the plunger. The calculations were performed in the Matlab/Simulink environment, creating current waveforms, acting forces and plunger displacement. Correctness of mathematical descrip-tion and determined in the course of opening and closing time calculations were related to the values declared by the manufacturer, show-ing differences below 3%. The presented mathematical model can be modified for other injector design solutions.

Słowa kluczowe

EN

mechanical engineering; combustion engines; alternative fuel supply; modelling

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2020
• Tom: Vol. 14, no. 1
• Strony: 29--35
• Opis fizyczny: Bibliogr. 76 poz., rys., tab., wykr.

Twórcy

autor

Szpica Dariusz

• Faculty of Mechanical Engineering, Bialystok University of Technology, ul. Wiejska 45C, 15-351 Białystok, Poland

autor

Kusznier Michał

• Faculty of Mechanical Engineering, Bialystok University of Technology, ul. Wiejska 45C, 15-351 Białystok, Poland

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Uwagi

1. This research was financed through subsidy of the Ministry of Science and Higher Education of Poland for the discipline of mechanical engineer-ing at the Faculty of Mechanical Engineering Bialystok University of Technology WZ/WM-IIM/4/2020.

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