Autor: Sójka, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Zmiany własności fizyko-chemicznych olejów silnikowych jako parametr diagnostyczny
Changes of physical and chemical properties of engine oils as a diagnostic parameter
Autorzy:: Woropay, M.
Bukowski, P.
Sójka, M.
Powiązania:: https://bibliotekanauki.pl/articles/327790.pdf
Data publikacji:: 2006
Wydawca:: Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:: lepkość kinematyczna
liczba zasadowa
temperatura zapłonu
koncentracja zanieczyszczeń
viscosity
total base number
ignition temperature
contamination
Opis:: W pracy przedstawiono wyniki badań eksploatacyjnych olejów silnikowych stosowanych w systemie transportu, jakim są Zakłady Komunikacji Miejskiej. Na podstawie przeprowadzonych badań, określono wpływ wydłużenia resursu oleju silnikowego na jego podstawowe własności, świadczące o zdatności. Zauważono ścisły związek pomiędzy ilością dolewek oleju świeżego, a badanymi parametrami. Zwrócono także uwagę na pewne dodatnie korelacje pomiędzy zmianami wartości parametrów zachodzącymi w eksploatowanych olejach.
The paper presents the results of the operation and maintenance investigations carried out for the engine oils used within a transport system represented by the Zakłady Komunikacji Miejskiej (Municipal Transportation Works). Based on the studies performed, the ageing process nature of the engine oil and the impact of the operation and maintenance conditions on the momentary state of the major parameters describing the engine oil amplitude have been determined. The analysis of the significance of some of the oil condition parameters has been carried out, too. It has been proven that in the transport systems, as of today, there is lack of a comfortable and reliable diagnostic and control method to check the engine oil condition during the operation and maintenance process. On the basis of the actual indexes, this paper constitutes and introduction to an attempt to extend oil operation service life, including the determination of the states of some parameters.
Źródło:: Diagnostyka; 2006, 4(40); 157-162
1641-6414
2449-5220
Pojawia się w:: Diagnostyka
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The analysis and assessment of the impact of the lengthening the mileage on the changes of some characteristics of oil engine
Autorzy:: Szubartowski, M.
Sójka, M.
Bukowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/241997.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: kinematic viscosity
basic number
ignition temperature
concentration of the use products
Opis:: In an exploitation process engine, there are physic-chemical changes of oil, which make impurities oil have a different characteristic. It is mainly connected with the element systems and greasy materials that react between themselves. The changes are constant and they mirror their new exploiting character. Deteriorating characteristics of oil influence its usefulness in a using process. The aim of the thesis is to show the results of exploitation research of engine oil that is used in transportation, basically by the Public Transport Company. The research mainly focuses on engine oil exploited in the buses of a public transport. They are of the following type: MAN NL, MAN NG, JELCZ 181 MG. O They have multi-seasonal oil like TEDEX, DIESEL, TRUCK SHPD SAE:15 W-40. The subject of the research is the processes that occur in engine oil while its exploitation. On the basis of the research, it was possible to specify the nature of the engine oil aging processes as well as the impact of the exploiting conditions on a temporal state of the main parameters that characterize the suitability of the engine oil. It has been proved that there is a lack of suitable and reliable methods of diagnosing and controlling the engine oil state while its exploitation. The following thesis is the first step to make the attempt to lengthen the distance in kilometres travelled of engine oil and determine the limit states of the crucial parameters on the basis of a real index.
Źródło:: Journal of KONES; 2008, 15, 4; 557-563
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Possibilities of extension of gear oil service life in rail vehicles
Autorzy:: Muślewski, Ł.
Sójka, M.
Landowski, B.
Markiewicz-Patalon, M.
Powiązania:: https://bibliotekanauki.pl/articles/244369.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
rail vehicle
lubricity
ignition temperature
concentration of wear products
kinematic viscosity
Opis:: The study deals with the results of operational tests of gear oils used in a regional railway transport system. The character of the aging process and the impact of gear oil operation on the main factors determining further usability of gear oil have been defined on the basis of the results of carried out tests. It was proved that transport systems lack reliable convenient diagnostic methods for gear oil used during the process of operation. One of the criteria taken into consideration in decision-making is the period of oil change imposed by the gear manufacturer. The long process of oil application is accompanied by physicochemical changes, which cause degradation of its properties. This phenomenon is referred to as oil aging. This fact can cause loss of viscosity, increase in the amount of pollution, and in effect a decrease in the ability to provide a durable boundary film. The lubricating ability of oil decreases as well. An increase in the amount of pollution is caused by interaction of the collaborating friction elements and by pollutants coming from the gear environment. These changes are of permanent character and reflect the state of new characteristics referred to as operational characteristics. Gear oils have a certain lubricating ability, which is a critical parameter. This study is an attempt to find a way of the oil service life extension and convince the propulsion systems manufacturers that reduction of costs connected with rail vehicle maintenance does make sense.
Źródło:: Journal of KONES; 2018, 25, 4; 309-316
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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