COMPARISON OF THE PHYSICAL AND EMPIRICAL APPROACH TO MODELLING OF QUASISTATIC ENVELOPING PROPERTIES OF THE TRACTOR TIRE

Fuel injection by Common Rail type fuel system results in hydrodynamic effects presenting considerable interest in case of multiple injections. After injection, fuel pressure oscillations at the injector inlet originate which influence considerably the injection rate and characteristic of consequent injection in case of multiple injections. The article presents the results of various factors influence experimental research on pressure oscillations at the injector inlet in case of single and doubles injections of different fuels. With this, such factors as fuel pressure, injection rate value, interval between injections, physical properties of fuel and design features of the injector were taken into account. The aim of the research: to evaluate the influence of pressure oscillations caused by the preliminary injection of fuel to the main injection. Analysis of the experimental data obtained is useful for selection of main design solutions for Common Rail Injectors (CRI).