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.
Citation: Golombok, M., Cooney, P., Kitching, J., and Nattrass, S., "Fuel Effects on Spatial Variation of AFR in an SI Engine," SAE Technical Paper 972827, 1997, https://doi.org/10.4271/972827. Download Citation
Author(s):
Mike Z. Golombok, Pete J. Cooney, John S. Kitching, Steve R Nattrass
Affiliated:
Shell International Petroleum Co.
Pages: 14
Event:
International Fuels & Lubricants Meeting & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Engine Diagnostics-SP-1301
Related Topics:
Engine cylinders
Exhaust valves
Air / fuel ratio
Fibers
Calibration
Logistics
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
