Charging system of spark ignition engine with two turbochargers

• Autorzy: Sendyka B. , Filipczyk J.
• Języki publikacji: EN

Abstrakty

EN

The purpose of the investigation was the application of two turbochargers system in spark ignition engine and determining turbochargers' work parameters depending on throttle opening and engine's rotation speed. System with small turbocharger and larger variable geometry turbocharger in parallel connection (three-stage turbocharging) was examined. The engine used during the investigation was 1300 cm displacement SI engine with modified intake and exhaust manifolds. Intake and exhaust manifold modification including only implementation of turbochargers and sensors was done for experimental purposes. Specific values of maximum boost pressure were obtained by introducing a waste gate valve system with appropriate characteristic. Proper choice concerning work parameters of the charging system allows to improve torque characteristic in wide range of engine's rotation speed. The system with additional small turbocharger allowed to increase torque value in low engine's speed range as well as to increase boost pressure in high engine's speed range for throttle opening angle values above 50 %. In medium engine's speed range the best results were given by variable geometry turbocharger. The two turbochargers system and values of maximum boost pressure were controlled by the system with two waste gate valves. Improving total efficiency was obtained in medium engine's speed range. The application of two turbochargers system as modification of naturally aspirated spark ignition engine allows to improve torque flexibility rate. There is a possibility to apply the charging system with two turbochargers, with boost pressure control system, in already existing, naturally aspirated engine without decreasing compression ratio and modifying engine's control system.

Słowa kluczowe

EN

spark ignition engine; charging system; turbocharger

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2008
• Tom: Vol. 15, No. 2
• Strony: 433--440
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Sendyka B.

autor

Filipczyk J.

• Section of Special Engine, Faculty of Machanical Engineering, Cracow University of Technology Jana Pawła II Avenue, 34-864 Krakow, Poland tel.: [phone],

Bibliografia

• [1] Frei, S. A., Guzzella, L., Onder, Ch. H., Nizzola, C., Improved dynamic performance of turbocharged SI engine power trains using clutch actuation, Control Engineering Practice 14, pp. 363-373, 2006.
• [2] Zellbeck, H., Supercharging of internal Combustion engines, in: van Basshuysen, R., Schafer, F., Internal Combustion Engine Handbook, SAE International 2004, pp. 362.
• [3] Erikson, L., Nielsen, L., Brugard, J., Bergstrom, J., Pettersson, F., Anderson, P., Modeling of a turbocharged SI engines, Annual Reviews in Control 26, pp. 129-137, 2002.
• [4] Galindo, J., Serrano, J. R., Climent, A., Tiseira, A., Experiments and modelling of surge in small centrifugal compressor for automotive engones, Experimental Thermal and Fluid Science 32, pp. 818-826, 2008.
• [5] Mitianiec, W., Ziolo, T., Kula, M., Controlling of the high charged SI engines with direct injection of compressed natural gas, Journal of Kones, Powertrain and Transport, Vol. 14, No. 4, pp 265-272.
• [6] Sendyka, B., Filipczyk, J., Rodak, L., Comparative study of Charging system of spark ignition engine, Journal of Kones, Powertrain and Transport, Vol. 14, No. 3, pp 551-555.