Abstract
The article presents examples of simulation studies performed on LPG injectors used in fourth generation installations. The needle’s movement was simulated in Matlab-Simulink based on a prepared mathematical model. Thanks to the simulation study it is possible to identify discrepancies in the fuel supply process.
Highlights
Dwindling reserves of conventional fuels push people to search for alternative sources of energy
As numerous publications show, adapting an engine so that it uses alternative fuels is not a simple matter [3]. It entails a range of problems connected with, for example, dosing the fuel
The prepared mathematical model [1] is based on equilibrium equation of forces applied to the LPG injector needle (Fig. 1): (1)
Summary
Dwindling reserves of conventional fuels push people to search for alternative sources of energy. Alternatives to diesel oil and petrol include hydrocarbon fuels (CNG, LPG, Biogas) as well as alcohol, vegetable oils or hydrogen. Each of these fuels is obtained in a different manner. As numerous publications show, adapting an engine so that it uses alternative fuels is not a simple matter [3]. It entails a range of problems connected with, for example, dosing the fuel (in the case of 4th generation LPG installations). That is why the manufacturers of gas installations reduce the costs related to designing and producing parts. The analyses and tests were performed on a Valtek 3Ω injector rail, Vector LPG controller, and the tested gas installation was installed in a BMW 520i
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