Analysis and evaluation of efficiency criteria of modern high pressure injection systems under special consideration of future CO2 targets

„The future mobility will be electrified“– a phrase which has a significant impact on last year’s development. Indeed, the steps to a sustainable society requires not only the application of novel high power battery technologies, furthermore will combustion engines play an important role to achieve this sophisticated target. Due to its high complexity, an infrastructure based on an electric energy only supply is in many locations not applicable. Thus, synthetic fuel solutions have to be applied as an alternative sustainable energy source. As a consequence, a huge variety of fuels may be brought into local markets with their own impact on the combustion engine.
The mandatory change of the combustion engine requires more than friction reduction, but also novel combustion approaches as well as the application of novel fuels. Herein, the fuel injection system acts as interface between the fuel and the mechanical engine operation. Nevertheless, this system suffers typically in its operation by its low total efficiency of ~15%. Therefore, optimization has shown that CO2 emission benefits of up to 5 g/km in cycles are
possible.