A Study on the Mechanism of In-Cylinder Tumble Generation by Directed Intake Ports 962089
The magnitudes and compositions of in-cylinder tumble ratio generated by each velocity components were computed at different intake valve lifts and distances along the direction of valve axis in this paper, based on the three-dimensional velocity data measured by hot-wire anemometry at intake valve periphery of typical SI engine intake ports (horizontal and sloping directed ports) in a steady flow rig. The effect of velocity profiles at above two intake ports exit on in-cylinder tumble generation was studied, and a microscopic analytical method of evaluating tumble-generating capability of intake ports was developed according to the velocity profiles at intake valve exit area.
Citation: Liu, R., Zhang, C., Wu, L., An, X. et al., "A Study on the Mechanism of In-Cylinder Tumble Generation by Directed Intake Ports," SAE Technical Paper 962089, 1996, https://doi.org/10.4271/962089. Download Citation
Author(s):
Rui-Lin Liu, Chun-Run Zhang, Liang-Qin Wu, Xiang-Bi An, Yi-Kun Yu, Shu-Min Li, Ming-Zhi Feng, Chong-Lin Song
Affiliated:
Engineering College of Transportation, Tianjin Univ.
Pages: 8
Event:
1996 SAE International Fall Fuels and Lubricants Meeting and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Spark ignition engines
Valves
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