Influence of indicator valve channel untightens and loss of patency on the parameters values image obtained from indicator diagram

• Autorzy: Cuper D. , Łutowicz M.
• Języki publikacji: EN

Abstrakty

EN

Indication process of big marine and industrial diesel engines are taken through indicating canals with indicating valves. Influence of these channels on parameters values obtained from engines indication is significant. Depending on chosen method of TDC determination the obtained image course error could achieved even 80% of measured value. It is assumed that this error is systematic and identical for whole engine cylinders or even for whole the same engines type. From these reasons such measurement are commonly used only for comparative tests. Engines exploitation caused technical degradation of indicators canals and valves. Unburnt fuels and oil particles deposits in channel changing its patency and also untightens in connections occurs. These are the reasons of changing in indication pressure diagram image. Process of degradation could be treated as random and measured parameters could be also burden by random error. During tests which were carried out on Sulzer type 6AL20/24 engine simulations of indicator canal malfunctions were made and their influence on obtained indication parameters were checked. Obtained parameters devalue sense of engine tuning in exploitation which based only on comparative tests of indicating pressure curves.

Słowa kluczowe

EN

indicating valve; piston engine; indicating

• 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: 2011
• Tom: Vol. 18, No. 3
• Strony: 61--66
• Opis fizyczny: Bibliogr. 4 poz., rys.

Twórcy

autor

Cuper D.

autor

Łutowicz M.

• Polish Naval Academy in Gdynia Mechanical-Electrical Faculty Smidowicza Street 69, 81-103 Gdynia, Poland phone: [phone],

Bibliografia

• [1] Wajand, J., Pomiary szybkozmiennych ciśnień w maszynach tłokowych, Warszawa: Wydawnictwa Naukowo-Techniczne, 1974.
• [2] Kluj, S., Diagnostyka urządzeń okrętowych, Gdynia: Studium Doskonalenia Kadr S.C. Wyższej Szkoły Morskiej w Gdyni, 1992.
• [3] Łutowicz, M., Analysis of application of chosen methods for TDC determination in marine diesel engines, Journal of KONES Powertrain and Transport, Vol. 16, No. 4, Warszawa 2009.
• [4] Łutowicz, M., Evaluation of the Condition of Cylinder Systems of the Engine Based on an Compression Process Analysis, Polish Journal of Environmental Studies, Vol. 18, No. 2A, Olsztyn 2009.