Browse Publications Technical Papers 2011-01-1882
2011-08-30

Experimental Analysis of the Start of Fuel Cycle-to-Cycle Variations of Solenoid-Actuated High Pressure Fuel Injectors 2011-01-1882

This paper presents an experimental investigation to quantify the start of fuel cycle-to-cycle variations of solenoid-actuated high pressure fuel injectors. The approach is based on building a probability presence image by recording a set of highly magnified images of the liquid fuel emerging from the injector tip at a specified delay time after the start of injection logic pulse. The analysis has been applied to two production-intent fuel injectors for direct injection spark ignition engine applications. The results show that the magnitude of the cycle-to-cycle variation at each delay time can be captured and well represented in a quantitative manner based on monitoring the liquid presence probability over the injection cycles. It is a useful diagnostic tool to quickly evaluate the start of fuel variation and can be used in support of injector development process for fuel injected engine applications.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X