Fuel dosage irregularity of LPG pulse vapor injectors at different stages of wear

Abstract

The idea of converting gasoline engines to LPG alternative fuelling results mainly from the fuel price. The paper presents the results of flow research performed on a prototype test stand. In the process of numerical identification and relevant calculations the irregularities of fuel dosage of LPG vapor injectors have been determined. Injectors of different stage of the wear process have been subjected to the test with a view to showing a difference between newly manufactured injectors, injectors in operation as well as end-of-life (worn) injectors. The said irregularity is the primary cause of engine misfires.

DOI: http://dx.doi.org/10.5755/j01.mech.22.1.13190