Identyfikatory
Warianty tytułu
Analiza drgań głowicy silnika wysokoprężnego zasilanego dwupaliwowo
Języki publikacji
Abstrakty
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.
Wydawca
Czasopismo
Rocznik
Tom
Strony
333--341
Opis fizyczny
Bibliogr. 6 poz., rys.
Twórcy
autor
- Radom Technical University ul. B.Chrobrego 45, 26-600 Radom, Poland tel.: +48 48 361764, fax: +48 48 3617644, andrzej.rozycki@pr.radom.pl
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).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ6-0021-0076