1997-10-01

Fuel Effects on Spatial Variation of AFR in an SI Engine 972827

A novel arrangement of four fibres was used to probe the fuel concentration at 4 different positions along the longitudinal axis of a transparent engine cylinder at 5 different times during the induction and compression strokes. By using a reference calibration experiment we derived variations in the air/fuel ratio at times in the engine cycle when the inlet and exhaust valves are closed. We used this technique to examine the effects of inlet-port swirl and injection timing for a number of fuels including 2 refinery streams. We also traced the different spatial distributions of spectrally resolved aromatic and paraffinic components from the same fuel during engine operation.

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