Yeni Aşırı Genişleşmeli Altı Zamanlı Motor Mekanizması

Dört zamanlı motorların egzoz atık ısısının bir kısmı, çeşitli şekillerde faydalı işlere dönüştürülebilir. Altı zamanlı motor mekanizmalarının egzoz ısısı geri kazanımı ile amaç, motor için faydalı işlerin atık ısısını dönüştürerek ısıl verimliliği arttırmaktır. Bugün altı zamanlı motorlarla ilgili birçok patentin varlığına rağmen, endüstride daha fazla çalışma ve araştırma yapılması gerekmektedir. Bu çalışmada, geleneksel altı zamanlı bir motor yerine, değişken stroklu altı zamanlı bir motor mekanizması teorik olarak incelenmiştir. Yeni mekanizmanın idealize edilmiş bir termodinamik modeli oluşturuldu, kinetik ve dinamik analizler yapıldı ve tasarım parametreleri geleneksel motor mekanizmasına göre incelendi. Sonuç olarak, bu çalışma ile aynı koşullar altında geleneksel altı zamanlı motor mekanizmasına kıyasla, motor momenti %10 artarken, krank milindeki yük yalnızca %1 artmıştır

Novel Over-Expanded Six-Stroke Engine Mechanism

Some of the exhaust waste heat of the four-stroke engines can be transformed into useful work in a variety of ways.With the exhaust heat recovery from the six-stroke engine mechanisms, the goal is to increase the thermalefficiency by converting the waste heat of useful work for the engine. Despite the availability of many patentsrelated to six-stroke engines today more study and research are required to be used industrially. In this study,instead of a conventional six-stroke engine, a variable-stroke six-stroke engine mechanism was theoreticallyexamined. An idealized thermodynamic model of the novel mechanism was constructed, kinetic and dynamicanalyzes were made, and the design parameters were examined in comparison with the conventional enginemechanism. As a result, compared to the conventional six-stroke engine mechanism under the same conditions asthis study, while the engine moment was increased by 10% , whereas the load on the crankshaft increased by only1%.

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Feidt M. 2017. Internal Combustion Engines Revisited. Finite Physical Dimensions Optimal Thermodynamics 1, Elsevier. 99-124. DOI:10.1016/B978-1-78548-232-8.50004-2.
Reitz R.D., Duraisamy G. 2015. Review of high efficiency and clean reactivity controlled compression ignition (RCCI) combustion in internal combustion engines. Progress in Energy and Combustion Science, 48: 45-51.
Ganesan V. 2018. Application of CFD for Analysis and Design of IC Engines. In Advances in Internal Combustion Engine Research,251-306, Springer, Singapore, DOI: 10.1007/978-981-10- 7575-9_13
Hentschel L., Michels K., Garbe T., Hönig M. 2018. E-fuels–a central module for future engine design?. In Internationaler Motorenkongress 2018, 487-489. Springer Vieweg, Wiesbaden.
Arabaci E. 2018. A Novel Extended Expansion Engine Mechanism. International Journal of Automotive Science and Technology, 2 (2): 16-23.
Zhao J. 2017. Research and application of over-expansion cycle (Atkinson and Miller) engines – A review. Applied Energy, 185: 310-319.
Arabaci E., İçingür Y. 2016. Thermodynamic investigation of experimental performance parameters of a water injection with exhaust heat recovery six-stroke engine, Journal of the Energy Institute, 89: 569-577.
Conklin J.C., Szybist J.P. 2010. A highly efficient six-stroke internal combustion engine cycle with water injection for in-cylinder exhaust heat recovery, Energy, 35: 1658-1664.
Arabaci E., İçingür Y., Solmaz H., Uyumaz A., Yılmaz E. 2015. Experimental investigation of the effects of direct water injection parameters on engine performance in a six-stroke engine, Energy conversion and Management, 98: 89-97.
Szybist J.P., Conklin J.C. 2013. U.S. Patent No. US008291872B2. Washington, DC: U.S. Patent and Trademark Office.
Postrzednik S. 2014. Effects of the water injection into the hot charge at isochoric conditions, Energy, 71: 7-20.
Paul G., Das P.K., Manna I. 2015. Droplet oscillation and pattern formation during Leidenfrost phenomenon. Experimental Thermal and Fluid Science 60: 346-353.
Kelem H., Kelem E. 2010. U.S. Patent No. 7,726,268. Washington, DC: U.S. Patent and Trademark Office.
Khalife E., Tabatabaei M., Demirbaş A., Aghbashlo M. 2017. Impacts of additives on performance and emission characteristics of diesel engines during steady state operation. Progress in Energy and Combustion Science, 59: 32-78.
Liu, F., Sun, B., Zhu, H., Hu, T., Du, W. 2014. Development of performance and combustion system of Atkinson cycle internal combustion engine. Science China Technological Sciences, 57: 471-479.
Naber J.D., Johnson, J.E. 2014. Internal combustion engine cycles and concepts. Alternative Fuels and Advanced Vehicle Technologies for Improved Environmental Performance, Woodhead Publishing. 197-224. DOI: 10.1533/9780857097422.2.197.
Murtaza G., Bhatti A.I., Arshad A. 2017. Nonlinear Robust Control of Atkinson Cycle Engine. IFAC-PapersOnLine, 50: 3685-3690.
Siczek K.J. 2016. Valve train thermodynamic effects. Tribological Processes in the Valve Train Systems with Lightweight Valves, Butterworth-Heinemann, 39-58. DOI: 10.1016/B978-0-08- 100956-7.00015-1
Gleich A. 2016. German Patent No: DE201510002385, Deutschland, German Patent and Trademark Office.
CTL engine Mechanism, CTL-Engineering, 2018. http://www.ctl-engineering.com, (accessed on 2018-02-01).
Catalano G. 2018. Compact And Modular Atkinson Cycle Engine, from https://contest.techbriefs.com/2016/entries/automotive-transportation/7029, (accessed on 2018-03- 20).
Lugo Engine, 2018. http://lugodevelopmentsinc.com, (accessed on 2018-03-10).
Guimaraes, B., UMotor - Over-Expanded Engine, 2018. https://contest.techbriefs.com/2016/entries/sustainable-technologies/7088, (accessed on 2018-01- 10).
Waissi G.R. 1995. Internal combustion (IC) engine with minimum number of moving parts. In SAE Technical Papers DOI: 10.4271/950090
Read T., 2009. U.S. Patent No. US8894530B1. Washington, DC: U.S. Patent and Trademark Office.
Wiseman R., 2001. U.S. Patent No. US6510831B2. Washington, DC: U.S. Patent and Trademark Office.
Caton J.A. 2015. An introduction to thermodynamic cycle simulations for internal combustion engines, John Wiley & Sons.
İçingür Y., Arabaci E. 2013. Altı Zamanlı Buji Ateşlemeli Bir Motorun Performans ve İdealleştirilmiş Hava-Yakıt Çevrimi Analizi. Politeknik Dergisi, 16 (1). DOI: 10.2339/2012.16.1, 37-44.
Kolchin A. 1984. Design of Automotive Engines, Mir Publishers, Moscow, 24-82.
Çengel Y.A., Boles M.A. 2014. Thermodynamics: An engineering approach. Boston: McGrawHill Education.
Honda Motor Co., Honda GX 240, GX270, GX340, GX390 common service manual-part-c (2010). Honda Motor Co. Service Publications Office, Belgium, 1-2.
Hoag K., Dondlinger B. 2015. Vehicular engine design. Springer.
İpci D., Karabulut H. 2016. Thermodynamic and dynamic modeling of a single cylinder four stroke diesel engine. Applied Mathematical Modelling, 40 (5-6): 3925-3937,