- Tytuł:
- Research of flame propagation in combustion system with semi-open combustion chamber for gasoline SI engines
- Autorzy:
-
Leżański, T.
Sęczyk, J.
Wolański, P. - Powiązania:
- https://bibliotekanauki.pl/articles/242275.pdf
- Data publikacji:
- 2011
- Wydawca:
- Instytut Techniczny Wojsk Lotniczych
- Tematy:
-
SI engines
engine combustion systems
combustion process visualization - Opis:
- Some results of visualization researches of combustion system with divided, semi - open combustion chamber for SI engines, using rapid compression machine (RPM) and experimental visualization engine (EVE) are presented in his paper. Short description of combustion system operation, description of test stands and research equipment can be found in the paper. The tests were performed at stoichiometric ratio natural gas-air and propane-air mixtures. A few the most characteristic of results are shown; to explain how should be operate the combustion system, to yield the better performance. They are compared the research results (photographs of combustion sequence, diagrams of in-cylinder pressure histories) during visualization testing with using RCM and EVE. During RCM testing we obtained the combustion photographs in the plain pass in cylinder axis but during ECE testing at the plain perpendicular to the cylinder axis. All researches shown that the best performance are yielded when a spark advance angle (ignition timing) is such selected that stream outflow prechamber to main combustion chamber starts when the piston is at TDC and it has adequate energy to travel a main combustion chamber with higher velocity than burning velocity in quiescent chamber. Then the shortest time of combustion, the highest peak pressure in the cycle and bigger useful working are yielded. The impact of spark advance angle on flame propagation process into combustion chamber in extreme cases has been analyzed too.
- Źródło:
-
Journal of KONES; 2011, 18, 2; 251-260
1231-4005
2354-0133 - Pojawia się w:
- Journal of KONES
- Dostawca treści:
- Biblioteka Nauki
Artykuł