Analysis of head vibration in the dual-fuel diesel engine

• Autorzy: Różycki A.

Warianty tytułu

PL

Analiza drgań głowicy silnika wysokoprężnego zasilanego dwupaliwowo

• Języki publikacji: PL

Abstrakty

EN

The article presents some results of initial research, which are supposed to check the possibility of the application of the typical knock sensor, which is normally used to the spark ignition engine to detect the knock. The comparative analysis of the signals of head vibration and pulse pressure in the cylinder shows a huge similarity of both signals during the combustion stage. The head vibrations, with huge amplitude and frequency similar to the frequency occurring during the combustion, occur during the remaining time of the work cycle. This vibration appears during the valve overlap and during the closing of the inlet valve. It also occurs at the huge load during the opening of the injector. The vibrations may be the result of the strike caused by the closing valve in the valve seat and also by the flow phenomenon: the air in the valve and the fuel in the injector nozzle. The example of the piston damage due with knock combustion , the schema of the dynamometric engine test stand, example runs of pressure changes in cylinder and in the injection pipe, lift variations of nozzle needle, signal from knock sensor, course vibrations of engine head, spectral analysis of engine head engine head and the value of maximum amplitudes vibrations of engine head are presented in paper.

Słowa kluczowe

PL

silniki spalinowe; paliwa alternatywne; zasilanie paliwem; spalanie stukowe; analiza drgań

EN

combustion engines; alternative fuels; fuel systems; knock combustion; vibrations analysis

• 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: 2006
• Tom: Vol. 13, No. 1
• Strony: 333--341
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Różycki A.

• Radom Technical University ul. B.Chrobrego 45, 26-600 Radom, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] Luft, S., Dwupaliwowy silnik o zapłonie samoczynnym zasilany mieszaniną gazów propan-butan (LPG) i olejem napędowym. Politechnika Radomska, Wydawnictwo (2002).
• [2] Schelling, H., Freier, R., Geisselbrecht, M., Measurement of Various Influencing Factors on Piston Load During Knocking Combustion. Technical Information. MAHLE GMBH, Stuttgart.
• [3] Kowalewicz, A., Wybrane zagadnienia samochodowych silników spalinowych. Wyższa Szkoła Inżynierska, Wydawnictwo, Radom 1996.
• [4] Różycki, A., Niepowtarzalność kolejnych cykli pracy silnika o zapłonie iskrowym zasilanego ubogimi mieszankami. Politechnika Radomska, Wydawnictwo (2002).
• [5] Różycki, A., Drgania głowicy silnika wysokoprężnego zasilanego dwupaliwowo. Archiwum Motoryzacji, Wydawnictwo Naukowe PTNM, Nr 4, Radom 2005.
• [6] Jargenstedt, M., Detecting Start of Combustion using Knock Sensor Signals. Examensarbete utforti Fordonssystem vid Tekniska Hogskolan i Linkoping. ISSN LiTHISY-EX-3035 (2000).