A valved two stroke engine as a new power source

• Autorzy: Mitianiec W. , Buczek K.
• Języki publikacji: EN

Abstrakty

EN

The present work defines main conception of modern, efficient and ecologic two-stroke engine. It indicates the scope of necessary modifications that have to be made in typical four-stroke engine to prepare it to work in two-stroke mode. Taking into account some limitations (especially in valve train design) authors performed several analyzes in order to check the possibility of proper scavenging process and obtain main engine characteristics. The paper contains description of simulation approach and selected mathematical models that was applied in carried over analyzes. The results of foregoing simulations, which were obtain taking advantage of GT-Power software should be considered as preliminary since several parameters have to be defined during research and 3D simulations. In order to expose advantages of modern two-stroke engine a simple comparison of it and its predecessor was performed taking into consideration BSFC maps. The objects of simulation were fluid flow, scavenging and combustion. This comparison indicates that proposed two-stroke engine achieve significantly less break specific fuel consumption (up to 27 g/kWh drop). Paper presents diagram of new type two-stroke engine with poppet valves, which is probably the most feasible layout of two-stroke engine, and GT-Power model of simulated single-cylinder engine based on four-stroke single cylinder engine.

Słowa kluczowe

EN

transport; engine development; two-stroke engine; valve timing; pollutants

• 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: 2009
• Tom: Vol. 16, No. 3
• Strony: 259--268
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Mitianiec W.

autor

Buczek K.

• Cracow University of Technology Faculty of Mechanical Engineering Jana Pawia II37, 31-864 Cracow, Po land tel: [phone], fax: [phone],

Bibliografia

• [1] Basshuysen, R., Schaefer, F., Internal Combustion Engine – Handbook, SAE International, 2004.
• [2] Blair, G. P., Design and Simulation of Two-Stroke Engines, SAE Inc., Warrendale 1996.
• [3] GT-Power User’s Manual, Gamma Technologies, V.6.2, 2006.
• [4] Heywood, J.B., Internal Combustion Engines Fundamentals, McGraw-Hill Inc., New York 1988.
• [5] Mitianiec, W., Buczek, K., A New Approach in Development of Two-Stroke Engines, PTNSS-2009-SC-042, Bielsko-Biała 2009.
• [6] Mitianiec, W., Buczek, K., A New Design of Ecologic Two-Stroke Engine. EAEC, 2009.
• [7] Wajand, J. A., Wajand, J. T., Tłokowe Silniki Spalinowe średnio- i szybkoobrotowe, WNT, Warszawa 2005.