Marine diesel engine valve gear mechanism diagnostics problems

• Autorzy: Lus T.
• Języki publikacji: EN

Abstrakty

EN

Marine diesel engines have changed their construction last years because of electronic control implementation in fuelling process. Electronic control implementation could be also important in valve gear mechanism which is main part of the engine gas es exchange system. In this paper problems connected with of valve gear mechanisms operation and diagnostics have been presented. the diagnostic methods and processes which could impact diagnostic process will be shown together with examples from test bed and real vessels. diagnostic methods which based on vibration signals analysis are sensitive on engine load and speed change. separate engine cylinder 's loads generale differences in so called "dynamic valve gear diagrams " which will be shown for some marine engine types. opening and closing of inlet and exhaust valves generale vibration signals in entire engine structure. There are some tools available in signal analysis which gives opportunity to trace changes in signal patterns in real time monitoring systems. special diagnostic method based on vibration signal analysis worked out in the polish naval academy, gives opportunity to change engine maintenance philosophy from scheduled planed maintenance system to condition based maintenance system without fear about real operating engine conditions.

Słowa kluczowe

EN

marine diesel engine; diagnostics; valve gear

• 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: 2009
• Tom: Vol. 16, No. 4
• Strony: 287--292
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Lus T.

• Akademia Marynarki Wojennej Śmidowicza Street 69, 81-103 Gdynia 3,

Bibliografia

• [1] Hupli, J., Troberg, M., The smokeless Sulzer ZA40S, Wärtsilä Marine News No. 1, 2005.
• [2] Lus, T., A vibration method for tuning and diagnostic valves gear two- and four-stroke diesel engine, Journal of POLISH CIMAC, Warsaw 1994.
• [3] Lus, T., Envelope vibration method in diesel engine dynamic tuning, Explo-Diesel & Gas Turbine’01, Gdańsk-Międzyzdroje-Copenhagen 2001.
• [4] MAN Diesel., First All-Electronic Four-stroke engine, Diesel Facts, Copenhagen No. 3, 2006.
• [5] Woodyard, D., Pounder’s Marine Diesel Engines, 7th edition, BH, Oxford 1998.
• [6] Polanowski, S., Errors of piston TDC reference to zero points of cylinder pressure derivatives of marine engines, 27th International Scientific Conference on Combustion Engines KONES, September 10-13, Nałęczów, Poland 2000.