Preliminary Researches Of Influence Of Different Loads On Working Conditions And Performances Of The Piston Combustion Engine With Direct Fuel Injection

• Autorzy: Jankowska-Siemińska B. , Jankowski A. , Slezak M.
• Języki publikacji: EN

Abstrakty

EN

The most of research works with reference to piston engines with the direct fuel injection concentrate on two basic systems . One system is a homogeneous system and refers to high engine loads both from the point of view of torque and rotational engine speed. The second system refers to small loads and rotational engine speeds which usually do not exceed 50 % of the maximum allowable loads and the rotational speed. These systems were an object of the analysis and research with use of the laser-equipment , mostly the PDPA and LDV. For the comparison only the PIV research were brought over. In brought over analysis one returned the special attention on stratified combustion, homogeneous combustion, water injection and water fuel emulsions, heat exchange. In particular research injectors, the combustion space of the constant of the volume with 3D laser equipment (PDPA, LDV), results of researches of fuel spray concerning droplet diameters, results of researches of fuel spray concerning droplet distribution of lineal and volume, and dependences Rosin-Rammler, results of researches of fuel spray concerning distribution of 3D droplet velocity, results of the analysis of combustion rate and impulse for fuel spray are presented in the paper. The obtainment of small droplet dimensions is possible in the way increasing of the injection pressure. However high increasing of the pressure unfavourably bears on life of fuel equipment. From other methods one can mention methods mechanical improvements of spraying of the fuel. One of mechanical methods stayed put-upon in research of the ignition process.

Słowa kluczowe

EN

combustion engines; direct fuel injection; mixture preparation processes; homogeneous strategy; heterogeneous strategy; laser methods

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2007
• Tom: Vol. 2, no 2
• Strony: 187--198
• Opis fizyczny: Bibliogr. 11 poz., rys., tab.

Twórcy

autor

Jankowska-Siemińska B.

autor

Jankowski A.

autor

Slezak M.

• Institute of Aeronautics Al. Krakowska 110/114 02-256 Warsaw, Poland tel.[phone], fax: [phone],

Bibliografia

• [1] Ambrozik, A., Jankowski, A., Kruczynski, S., Slezak, M., Researches of CI engine fed with the vegetable fuel RME oriented on heat release, FIFSITA Paper F2006P256, 2006.
• [2] Ambrozik, A., Jankowski, A., Slezak, M., Some problems using of vegetable fuels in diesel engines, Journal of KONES Powertrain and Transport, Vol. 13, No. 4, Warsaw, 2006.
• [3] Jankowski, A., Sieminska, B.*, Slawinski, Z., The resistance on thermal shocks of combustion engine pistons, FIFSITA Paper F2006M232, 2006.
• [4] Kim, H., Lai, M.-C., Yoon, S., Quelhas, S., Kumar, N., Yoo, J. S., Correlating Port Fuel injection to Wetted Fuel Footprints on Combustion Chamber Walls and UBHC in Engine Start Processes, SAE Paper 2003-01-3240 2003.
• [5] Klein, D., and Cheng, W. K., Spark Ignition Engine Hydrocarbon Emissions Behaviors in Stopping and Restarting, SAE Paper 2002-01-2804, 2002.
• [6] Kruczynski, S. W., Danilczyk, W., Ambrozik, A., Jankowski, A.*, Slezak, M., Performance of three way catalytic converter containing magnesium oxide for SI engines with lean mixtures, FISITA Paper F2006P237, 2006.
• [7] Landsberg, G. B., Heywood, J. B., and Cheng, W. K., Contribution of Liquid Fuel to Hydrocarbon Emissions in Spark Ignition Engines, SAE Paper 2001-01-3587, 2001.
• [8] Lee, S, Tong, K., Quay, B. Q., Zello, J. V., and Santavicca, D., Effects of Swirl and Tumble on Mixture Preparation During Cold Start of a Gasoline Direct-Injection Engine, SAE Paper 2000-01-1900 2000.
• [9] Santoso, H., and Cheng, W. K., Mixture Preparation and Hydrocarbon Emissions Behaviors in the First Cycle of SI Engine Cranking, SAE Paper 2002-01-2805, 2002.
• [10] Schock, H., Shen, Y., Timm, E., Stuecken, T., and Fedewa, A., The Measurement and Control of Cyclic Variations of Flow in a Piston Cylinder Assembly, SAE Paper 2003-01-1357, 2003.
• [11] Shin, Y., Cheng, W., and Heywood, J. B., Liquid Gasoline Behavior in the Engine Cylinder of a SI Engine, SAE Paper 941872 1994.