Increase of the total efficiency using the Atkinson cycle in the spark ignition engine

• Autorzy: Sendyka B. , Sochan A.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of investigations performed on a combustion engine with Atkinson cycle included and application of variable valve timing. Investigations were carried out at constant rotational speed 2500 and 3500 RPM and at throttle opening 25% and 50%. Influence of the advance/delay angle of inlet valves closing on formation of exhaust gases toxic components such as: carbon monoxide, hydrocarbons and nitric oxides was presented. Basing on the obtained results difference of toxicity of exhaust gases before and after application of phase shifter and their concentration in places of total efficiency increments was demonstrated. Especially The Atkinson cycle comparing with conventional Otto cycle, characteristics of the electric motor applied in Toyota Prius generation, starting and work of engines (combustion engine and electric motor) during vehicle standstill, relation of specific fuel consumption in function of rotational speed for a Toyota Prius engine, generation II, in total efficiency of engines with Atkinson cycle and Mitsubishi GDI in function of rotational speed, relative increase in total efficiency as rotational speed function, influence of intake valves opening angle on concentration in exhaust gases: carbon monoxide, hydrocarbons and nitric oxides at diferrent throttle opening values are presented in the paper.

Słowa kluczowe

EN

variable valve timing; setting of valve timing; Atkinson cycle

• 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. 2
• Strony: 407--411
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Sendyka B.

autor

Sochan A.

• Cracow University of Technology Institute of Automobiles and Internal Combustion Engines Jana Pawia II Avenue 37, 31-864 Kraków, Poland tel: [phone], fax: [phone],

Bibliografia

• [1] Alger, T., Hall, M., Matthews, R., The effect of in-cylinder flow fields and injection timing on time-resolved hydrocarbon emissions in a 4-valve, DISI engine, Gasoline Direct Injection Engine, SAE International Congress, USA 2000.
• [2] Cichy, M., Obliczanie procesów sprężania i rozprężania metoda różnic skończonych, Gdańsk 1996.
• [3] Jarosinski, J., Oppenheim, A. K., Wolański, P., Problemy kontrolowanego spalania w silnikach, Problemy spalania w silnikach spalinowych, Polski Instytut Spalania, Łódź 2000.
• [4] Ishii, W., Hanajima, T., Tsuzuku, H., Application of air-fuel mixture injection to lean-burn engines for small motorcycles, SAE 2004-32-0052.
• [5] Jędrzejowski, J., Obliczanie tłokowego silnika spalinowego, Warszawa 1988.
• [6] Basset, M., Investigation of technologies to improve drive-cycle fuel economy, 2005.
• [7] Sendyka, B., Kudzia, S., Cygnar, M., The analysis of power supply construction and burning process in engines with gasoline direct injection (GDI), Konmot-Autoprogres, Zakopane 2004.