Realization of the Atkinson-Miller cycle in spark-ignition engine by means of the fully variable inlet valve control system

• Autorzy: Żmudka Z. , Postrzednik S. , Przybyła G.
• Języki publikacji: EN

Abstrakty

EN

The theoretical analysis of the charge exchange process in a spark ignition engine has been presented. This process has significant impact on the effectiveness of engine operation because it is related to the necessity of overcoming the flow resistance, followed by the necessity of doing a work, so-called the charge exchange work. The flow resistance caused by the throttling valve is especially high during the part load operation. The open Atkinson-Miller cycle has been assumed as a model of processes taking place in the engine. Using fully variable inlet valve timing the A-M cycle can be realized according to two systems: system with late inlet valve closing and system with early inlet valve closing. The systems have been analysed individually and comparatively with the open Seiliger-Sabathe cycle which is a theoretical cycle for the classical throttle governing of the engine load. Benefits resulting from application of the systems with independent inlet valve control have been assessed on the basis of the selected parameters: fuel dose, cycle work, charge exchange work and a cycle efficiency. The use of the analysed systems to governing of the SI engine load will enable to eliminate a throttling valve from the system inlet and reduce the charge exchange work, especially within the range of part load operation.

Słowa kluczowe

EN

spark-ignition engine; variable inlet valve control; open theoretical cycle; charge exchange process

PL

silnik o zapłonie iskrowym; zawór; otwarty obieg teoretyczny; wymiana ładunku

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2014
• Tom: Vol. 35, no. 3
• Strony: 191--205
• Opis fizyczny: Bibliogr. 14 poz., il.

Twórcy

autor

Żmudka Z.

• Silesian University of Technology, Institute of Thermal Technology, Konarskiego 18, 44-100 Gliwice, Poland

autor

Postrzednik S.

• Silesian University of Technology, Institute of Thermal Technology, Konarskiego 18, 44-100 Gliwice, Poland

autor

Przybyła G.

• Silesian University of Technology, Institute of Thermal Technology, Konarskiego 18, 44-100 Gliwice, Poland

Bibliografia

• [1] SZARGUT J.: Technical Thermodynamics. Silesian UT, Gliwice 2000 (in Polish).
• [2] ŻMUDKA Z., POSTRZEDNIK S.: Flow resistance in the engine inlet-exhaust system as affected by the engine parameters. Combust. Eng. 136(2009), 1, 31-40.
• [3] ŻMUDKA Z.: Energy and Ecological Aspects of the Charge Exchange Process Improvement in an Internal Combustion Engine.Silesian UT, Gliwice 2010 (in Polish).
• [4] POSTRZEDNIK S., ŻMUDKA Z.: Thermodynamic an Ecological Aspects of Combustion Engines Operation. Silesian UT, Gliwice 2007 (in Polish).
• [5] POSTRZEDNIK S., ŻMUDKA Z.: Research on Procedures of Independent Valve Control in Combustion Engines. Project no. N502 026 32/2190. PBU-30/RIE-6/07, 05.2007 - 06.2009, Rap., Gliwice 2009 (in Polish).
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• [10] MIANZO L., NEWTON S., POPOVIC Z.: Integrated control and power electronics for an electro-mechanical valve actuation system. Proc. IEEE/ASME, 2005.
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• [12] SUGIMOTO C., SAKAI H., UMEMOTO A., SHIMIZU Y.: Study on variable valve timing system using electromagnetic mechanism. SAE Tech. Pap. 2004-01-1869, 2004.
• [13] FARZANEH-GORD M., REZA BEHi M., YAHYAIE A., MIRMOHAMMADI S.: Estimating recoverable work of an engine by utilizing the CO2 Brayton power cycle and capturing heat lost. Arch. Thermodyn. 30(2009), 3, 89-110.
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Uwagi

EN

This scientific work was supported by Faculty of Power and Environmental Engineering of the Silesian University of Technology within the statutory research.