Engine researches on the influence of the piston ring insert on temperature distribution in piston

• Autorzy: Stężycki P. , Kowalski M. , Jankowski A.

Identyfikatory

DOI

10.5604/ 01.3001.0012.7995

• Języki publikacji: EN

Abstrakty

EN

The article presents a method of piston temperature measurement on a running engine using electromagnetic induction for transferring measurement results from a moving measuring system placed in a piston to a stationary system attached to the engine crankcase and to measuring system located outside the engine. Selected test results that were carried out on a single-cylinder Diesel engine are presented. A system consisting of a thermistor and a secondary coil was mounted in the piston. The primary coil was mounted in the crankcase under the cylinder liner of the engine. Engine tests were aimed at determining the influence of the piston ring insert on the temperature distribution in the piston. Temperature measurements in the piston without the ring insert were carried out for comparison. In both cases, the pistons had the same geometrical dimensions. The tests were carried out in conditions of external characteristics (the maximum load as a function of engine speed) and load characteristics (load changes at constant engine speed). The test results in the form of the temperature difference between the temperature of piston top and the temperature under the top compression ring indicate that the ring insert is a barrier to the heat flow from the piston to the engine cooling system. In addition, the results of the piston temperature measurements during the step change of the engine speed and its load to the nominal value are presented.

Słowa kluczowe

EN

combustion engine; engine piston; piston ring insert; electromagnetic induction; temperature measurement; thermistor

• 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: 2018
• Tom: Vol. 25, No. 4
• Strony: 563--570
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Stężycki P.

• Institute of Aviation 110/114 Al. Krakowska Street, 02-256 Warsaw, Poland tel.: [phone], fax: [phone]

autor

Kowalski M.

• Air Force Institute of Technology 6 Ks. Boleslawa Street, 01-494 Warsaw, Poland tel.: [phone], fax: [phone]

autor

Jankowski A.

• Institute of Aviation 110/114 Al. Krakowska Street, 02-256 Warsaw, Poland tel.: [phone], fax: [phone]

Bibliografia

• [1] Husberg, T. et. al., Piston Temperature Measurement by Use of Thermographic Phosphors and Thermocouples in a Heavy-Duty Diesel Engine Run under Partly Premixed Conditions, SAE 2005-01-164, 2005.
• [2] Jankowska-Sieminska, B., Jankowski, A., Slezak, M., Analysis and research of piston working conditions of combustion engine in high thermal load conditions, Journal of KONES No. 3, 2007.
• [3] Jankowski A., Kowalski M., Design of a new alloy for internal combustion engines pistons. Proceedings of the 7th International Conference on Mechanics and Materials in Design Albufeira/Portugal. Editors J.F. Silva Gomes and S.A. Meguid. Publ. INEGI/FEUP pp. 607-618, 2017.
• [4] Kato, N., Matsui, M., Shimura, T., Moritsugu J., Piston Temperature Measuring Technology Using Electromagnetic Induction, SAE Technical Paper 2001-01-2027, 2001.
• [5] Lee, H. H. Bang, H. W. Kauh, S. K. Kim, S. I., Piston-temperature measuring system using electromagnetic induction with verification by a telemetry system, International Journal of Automotive Technology, Volume 12, Issue 3, pp 351-358, 2011.
• [6] Terpiłowski, J., Jóźwiak, J., Praiskorn, M., Jankowski, A., Sęczyk, J., Method and system for temperature measurement of heat machine elements, especially pistons, Nr 166 156, UP RP, Warsaw 1995. (in Polish).

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).