Energy state impact on friction and wearing in combustion engines

• Autorzy: Borkowska J. , Kaźmierczak A.

Identyfikatory

DOI

10.5604/01.3001.0010.3161

• Języki publikacji: EN

Abstrakty

EN

Friction pairs are designed from elements, where is very difficult to define in unequivocal way all optimal parameters. Research on stability of friction pairs are focused on the surface and the top layer of surface in the parts. The main goal is find new solutions to design and material, thereby achieving one million kilometres of mileage to main repair in the case of internal combustion engines. The biggest structural difficulties are noticeable in friction pairs where we can observe sliding and returning motion, which is also connected with sealing function. Piston – ring – cylinder assembly of combustion engine has many friction pair's examples, also one of them, which decide about fastness to wear. A typical example of such a pair is first sealing ring – cylinder sleeve, called further in piston – rings – cylinder unit in combustion engine. Engineers are currently seeking an additional factor, which would be unable to gain the reduction of tangential force by reducing the friction coefficient in elements of friction pair during operations. Such a factor may be the surface free energy that results from molecular structure and nature of the bonds between the molecules present in the material. Components of surface free energy determine the tribological properties of the material, which is reflected in the stability of the units. The work aims to show the possibilities and benefits of the application of this new method in order to reduce wearing, which is consistent with the observed trend of technology development.

Słowa kluczowe

EN

friction; energy state; combustion engines; wetting drop; tribology

• 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: 2017
• Tom: Vol. 24, No. 4
• Strony: 25--30
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Borkowska J.

• Wroclaw University of Science and Technology Faculty of Mechanical Engineering Wyspianskiego Street 27, 50-370 Wroclaw, Poland tel.: [phone], fax: [phone]

autor

Kaźmierczak A.

• Wroclaw University of Science and Technology Faculty of Technology and Natural Sciences Wyspianskiego Street 27, 50-370 Wroclaw, Poland tel.: [phone], fax: [phone]

Bibliografia

• [1] Kaźmierczak, A., Tarcie i zużycie zespołu tłok – pierścień – cylinder, Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław 2005.
• [2] Andersson, P., Tamminen, J., Piston ring tribology – a literature survey, FTT Tiedotteita, Metallimiehenkuja, 2002.
• [3] Madej, M., Właściwości sytemów tribologicznych z powłokami diamentopochodnymi, Wydawnictwo Politechniki Świętokrzyskiej, Kielce 2013.
• [4] Kaźmierczak, A., Wpływ stanu energetycznego warstwy wierzchniej elementów silnika spalinowego na zużycie i tarcie par trących, Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław 2013.
• [5] Niewczas, A., Trwałość zespołu tłok – pierścienie tłokowe – cylinder silnika spalinowego, Wydawnictwo Naukowo-Techniczne, Warszawa 1998.
• [6] Pietrowski, S., Szymczak, T., Siemińska-Jankowska, B., Jankowski, A., Archives of Foundry Engineering, Vol. 10, No. 2, 2010.
• [7] Skrętowicz, M., Jankowski, A., Haller, P., Woźniak, J., Janas, M., Risk Evaluation of Driver Exposure to Exhaust Fumes Inside the Passenger Car Cabin in Urban Traffic Conditions, Journal of KONES, Vol. 23, No. 3, DOI: 10.5604/12314005.1216394 pp. 457-464, Warsaw 2016.
• [8] Zurek, J., Slawinski, Z., Jankowski, A., Dilatometric Researches of Novel Alloy for Combustion Engine Pistons, Journal of KONES, Vol. 23, No. 3, pp. 585-596, DOI:10.5604/12314005.1216513, Warsaw 2016.
• [9] Zurek, J., Slawinski, Z., Jankowski, A., Dilatometric Researches of Novel Alloy for Combustion Engine Pistons, Journal of KONES, Vol. 23, No. 3, pp. 585-596, DOI: 10.5604/12314005.1216513, Warsaw 2016.
• [10] Zurek, J., Slawinski, Z., Jankowski, A., Dilatometric Researches of Novel Alloy for Combustion Engine Pistons, Journal of KONES, Vol. 23, No. 3, pp. 585-596, DOI: 10.5604/12314005.1216513, Warsaw 2016.
• [11] Haller, P., Jankowski, A., Impact Analysis of Internal Catalyst Converter on Operating Parameters of VW 1.9 TDI Engine, Journal of KONES, Vol. 21, No. 1, DOI: 10.5604/12314005.1134058, pp. 99-106, Warsaw 2014.
• [12] Jankowski, A., Heat transfer in combustion chamber of piston engines, Journal of KONES Vol. 17 No. 1, pp. 187-197, Warsaw 2010.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).