Temat: diesel engine system - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Multi-criteria fuel system optimization with an electronic control unit
Autorzy:: Wróblewski, A.
Powiązania:: https://bibliotekanauki.pl/articles/133240.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: diesel engine
fuel system
solenoid injection
optimization
silnik spalinowy
system paliwowy
wtrysk elektromagnetyczny
optymizacja
Opis:: This paper presents the results of the multi-criteria synthesis of a diesel engine fuel system using the optimization method. The optimization criteria, functional restrictions and quality criteria have been selected. The efficiency of the proposed method was demonstrated using the example of a diesel engine with the Common Rail system.
Źródło:: Combustion Engines; 2017, 56, 1; 51-55
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Possibility of obtaining diagnostic information about the ships engine fuel injection system condition based on the analysis of characteristics of heat release
Autorzy:: Witkowski, Kazimierz
Powiązania:: https://bibliotekanauki.pl/articles/248068.pdf
Data publikacji:: 2019
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: marine diesel engine
indicated parameters
indicator diagram
heat release characteristics
injection system
diagnostic
Opis:: Marine engines are very complex technical objects, having many important functional systems, which include, inter alia, injection system, characterized by high unreliability. In this system, there may be different types of defects (damage) that affect the engine parameters, including specific fuel consumption, as well as failures endanger the safety of the ship. The indicator diagrams and analysis of indicated parameters have limited utility in the diagnosis of damages of marine engine, although this is a method commonly used in operational practice. To achieve greater diagnostic effectiveness, when, based on indicator diagrams, are calculated and then the characteristics of heat release is analysed - net of heat release characteristics and the intensity of the heat release, it was demonstrated. This procedure is particularly effective in the diagnosis of damages of marine diesel engine injection system components. It has been shown that the characteristics of heat release contain information about the condition of the injection systems, which enable to diagnose their failures. This is shown on the example of a clogged nozzle holes (their carbonizations). The obtained results allowed selecting the diagnosis symptoms, useful in detecting these faults in the injection system, from the characteristics of heat release: net heat release (Q) and intensity of heat release (q). The object of the research was typical marine medium speed engine Sulzer A25/30.
Źródło:: Journal of KONES; 2019, 26, 3; 249-256
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Diagnosis of injection system marine diesel engine with the use of the heat release characteristics
Diagnostyka układu wtryskowego silnika okrętowego z wykorzystaniem charakterystyk wywiązywania ciepła
Autorzy:: Witkowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/132942.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: diagnosis
piston marine diesel engine
injection system
statistics damage
heat release characteristics
net of heat release characteristics
intensity of the heat release
diagnostyka
okrętowy silnik tłokowy
modele wydzielania ciepła
charakterystyki wydzielania ciepła
ciepło wydzielone netto
intensywność wydzielania ciepła
Opis:: The paper presents the issues related to the diagnosis of injection system marine diesel engines, which are characterized by high unreliability. It was supported by the statistics of emergency events marine engines. It has been shown that the not only parameters of the diesel engine depends on the reliable operation of injection equipment but also the safety of navigation. This indicates the importance of diagnostics injection system, giving the ability to detect defects at the early stage of their development, in order to avoid failure. This has been demonstrated on the example of the injection system leak detection. The article discusses the possibility of using in the heat release characteristics calculated based on the indicator diagram in the marine engine injection system diagnostics. It has been shown that the characteristics of heat release contain information about the condition of the injection systems, which enable to diagnose their failures. The obtained results allowed to select the diagnosis symptoms, useful in detecting faults in the injection system, from the characteristics of heat release.
W artykule przedstawiono problematykę związaną z diagnostyką aparatury wtryskowej silników okrętowych, które należą do najbardziej zawodnych układów funkcjonalnych tych silników. Poparte to zostało danymi statystycznymi zdarzeń awaryjnych silników okrętowych. Wykazano, że od niezawodnego działania aparatury wtryskowej zależą nie tylko parametry pracy silnika, ale także bezpieczeństwo żeglugi. Wskazuje to jak istotne znaczenie ma diagnostyka układów wtryskowych, dająca możliwość wykrywania uszkodzeń na wczesnym etapie ich rozwoju, aby nie dopuścić do awarii. W artykule omówiono możliwość wykorzystania w diagnostyce układu wtryskowego silnika okrętowego charakterystyk wydzielania ciepła wyznaczanych w oparciu o wykres indykatorowy. Wykazano, że charakterystyki wydzielania ciepła zawierają informacje o stanie technicznym układów wtryskowych, umożliwiające diagnozowanie ich uszkodzeń. Uzyskane wyniki badań pozwoliły na wyłonienie z charakterystyk wydzielania ciepła symptomów diagnostycznych przydatnych w wykrywaniu uszkodzeń w układzie wtryskowym, co wykazano na przykładzie wykrywania nieszczelności układu wtryskowego.
Źródło:: Combustion Engines; 2015, 54, 3; 392-398
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Research on influence of condition elements the supercharger system on the parameters of the marine diesel engine
Autorzy:: Witkowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/244429.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: ship diesel engine
turbocharger system
active experiment
air filter
compressor
air cooler
Opis:: This paper presents the issues related to the impact of the technical condition elements of the turbocharger system on the parameters of marine diesel engine. Turbocharger system, in addition to the injection system has a significant impact on the quality of the working process, the economics and reliability of the engine. Contamination of elements of the turbocharger system are the most common faults (24.7% of all damage to marine engines). Contamination the following relates to elements: air filters, compressor, air cooler, scavenging system elements and turbine. The detailed data follows that the contamination are usually in: flow channels supercharger – 56%, turbine flow channels – 22%, air cooler – 11%, air filter – 6%, scavenging system elements – 4%, other elements – 1%. The technical condition influence of air filter, compressor and air cooler was analyzed. The analysis was supported by the results of their own research, carried out in the laboratory on the marine diesel engine, four– stroke 3AL25/30 SULZER, supercharged turbocharger VTR160N Brown Boveri. The research was performed in the form of an active experiment to simulate contamination of particular elements of the turbocharging system. Technical condition change of the air filter, the air compressor and the air cooler have been investigated.
Źródło:: Journal of KONES; 2013, 20, 1; 375-380
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Research on influence of selected control parameters of the injection system marine diesel engine on its exhaust gas toxicity
Autorzy:: Witkowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/246698.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: ship diesel engine
injection system
heavy fuel oil
control parameters
exhaust gas toxicity
Opis:: This paper devoted to pollution of the atmosphere due marine diesel engines in operation. In the paper presented are results of the investigations carried out in the Gdynia Maritime Academy laboratory with the use of a ship diesel engine, one-cylinder, two-stroke, crosshead of longitudinal scavenging, which was loaded by means of the water brake. This diesel engine combusting heavy fuel oil IF 40. The test-involved effect of two selected control parameters of fuel injection system ship diesel engine: fuel injection pressure and injection advance angle. Both selected control parameters were changed during the experiment separately, each of them three times. And so: changing the fuel injection pressure - for three selected values: 18, 22 and 26 MPa; changing the fuel injection advance angle - for three selected values: -10 centigrade, -13 centigrade and -16 centigrade before the piston's top dead centre (BTDC). The measurements were performed within the wide range of engine load at the permanent rotational speed of 220 rpm. For each of the above selected values six measurements were performed at the following engine loads: 25%, 40%, 50%, 60%, 70% and 80% nominal loads. Control parameters to change the injection pump and injector engine, during operation of the engine, by means of a supplementary-scaled instrumentation of the injector and injection pump. Owing to this is was not necessary to stop the engine before each successive test cycle. This way of realization of the measurements guaranteed running them in steady conditions. The elimination of influence of possible disturbances witch could arise from multiple starting and stopping the engine improved accuracy and reliability of the obtained results.
Źródło:: Journal of KONES; 2012, 19, 2; 551-556
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: The ability to fault detection in the injection system marine diesel engine using chosen method pattern recognition
Możliwość detekcji uszkodzeń układu wtryskowego okrętowego silnika tłokowego z wykorzystaniem wybranej metody rozpoznawania obrazów
Autorzy:: Witkowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/132924.pdf
Data publikacji:: 2013
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: fault detection
pattern recognition
injection system
marine diesel engine
detekcja uszkodzeń
rozpoznawanie obrazów
układ wtryskowy
okrętowy silnik tłokowy
Opis:: The paper describes the possibility and advisability of using chosen method pattern recognition in the diagnosis injection system of marine diesel engine. It has been shown the desirability of using one of the methods of deterministic pattern recognition, defined as a method of measuring the distance from the pattern. This method belongs to the group "metric recognition methods", which are based on the assumption that the current image of the technical condition of object is close to one of the known symptoms of fault. The current condition of the object is described by a set of diagnostic parameters values and identified faults is also described such sets of parameters. The possibility of using the presented method has been shown to detect faults injection system elements, basing on the results of research the marine diesel engine.
W artykule przeanalizowano możliwości i celowość wykorzystania wybranej metody rozpoznawania obrazów w diagnostyce układu wtryskowego silnika okrętowego. Wykazano celowość wykorzystania jednej z deterministycznych metod rozpoznawania obrazów, definiowanej jako metoda pomiaru odległości od wzorca. Należy ona do grupy metrycznych metod rozpoznawania, które są oparte na założeniu, że aktualny obraz stanu technicznego obiektu opisany wartościami parametrów diagnostycznych jest bliski jednemu ze znanych, typowych objawów uszkodzenia. Bieżący stan obiektu jest opisany przez zbiór wartości parametrów diagnostycznych i znane uszkodzenia również opisuje taki zbiór parametrów o odpowiednich wartościach. Możliwość praktycznego stosowania tej metody w detekcji uszkodzeń elementów układu wtryskowego, wykazano w oparciu o badania przeprowadzone na okrętowym silniku tłokowym.
Źródło:: Combustion Engines; 2013, 52, 3; 367-370
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The correct selection of diagnostic parameters of marine diesel engine and their minimization of as a necessary action in the formation of diagnostic algorithm
Autorzy:: Witkowski, K
Powiązania:: https://bibliotekanauki.pl/articles/247369.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: ship diesel engine
diagnostic parameters
diagnostics programs
experimental data
Fault Isolation System
Opis:: This article describes the methodology of creating algorithms and diagnostic programs. Still in the construction of such algorithms and diagnostic creating programs mostly is used classical approach, the methodological basis can be reduced to the several basic tasks. One of them is the proper selection and minimization of diagnostic parameters. The article shows the importance of proper selection and minimization of diagnostic parameters on the example of the diagnostics of the injection system of a marine diesel engine. It was indicated to practical usefulness for this purpose calculated the values sensitivity of a given parameter. The stronger the diagnostic parameter responds to a change in the structural parameter, the greater its diagnostic sensitivity is and thus the early development of a given fault can be detected based on deviation analysis of this parameter from its reference value. Based on experimental data, FIS (Fault Isolation System) matrix was built after selecting and minimizing diagnostic parameters. Triple-valued evaluation of residues (–1, 0, +1) was used. The research was carried out on a real object – a four-stroke, mediumspeed marine engine from Sulzer. The impact of selected fault in the injection system on the diagnostic parameters was researched and a FIS (Fault Isolation System) matrix was built on this basis.
Źródło:: Journal of KONES; 2017, 24, 2; 287-292
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The increase of operational safety of ships by improving diagnostic methods for marine diesel engine
Autorzy:: Witkowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/117520.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: diagnostic methods
marine diesel engine
main engine
ship propulsion
operational safety
injection system
damage
fuel oil
Opis:: This article shows the importance of the diagnostic improvement methods of marine engines to boost the economy and safety of operation of marine cargo ships. The need to implement effective diagnostic methods is justified by presenting statistical data of marine diesel engines failure and the cost of their operation. Based on the own research has been proven, for the chosen example, that indicator diagrams and analysis of indicated parameters have limited utility in the diagnosis of damages of marine engine, although this is a method commonly used in operational practice. To achieve greater diagnostic effectiveness, when, based on indicator diagrams, are calculated and then the characteristics of heat release is analyzed - net of heat release characteristics and the intensity of the heat release, it was demonstrated. This procedure is particularly effective in the diagnosis of damage of injection system components marine diesel engine.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 317-321
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Wykorzystanie parametrów drgań wzdłużnych tulei cylindrowych w diagnostyce okrętowych tłokowych silników spalinowych
The use of the parameters of cylindre liner longitudinal vibrations in marine diesel engines diagnostics
Autorzy:: Witkowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/328021.pdf
Data publikacji:: 2005
Wydawca:: Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:: diagnostyka
okrętowe tłokowe silniki spalinowe
układ tłokowo-cylindrowy
procesy trybologiczne
wibroakustyka
drgania wzdłużne
diagnostics
marine diesel engine
piston-cylinder liner system
tribological processes
vibrodiagnostics
longitudinal vibrations
Opis:: W artykule przedstawiono wyniki badań wstępnych dotyczących możliwości wykorzystania w diagnostyce okrętowych silników tłokowych drgań wzdłużnych tulei cylindrowej. Wyniki badań wykazały, że ten sygnał wibroakustyczny może być przydatny do wykrywania stanów przedzatarciowych układu tłok-cylinder.
In the paper the preliminary research results at the possibilities at using cylinder liner longitudinal vibrations in marine diesel engine diagnostics has been presented. The research results have proven that these vibroacoustics signal can be useful to defect the prefrictional states of piston-cylinder liner system.
Źródło:: Diagnostyka; 2005, 35; 137-144
1641-6414
2449-5220
Pojawia się w:: Diagnostyka
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Znaczenie pomiaru masowego natężenia przepływu powietrza przez sprężarkę w diagnostyce układu doładowania silnika okrętowego
Measurement meaning mass intensity of air flowing trough the compressor in diagnostic turbocharger system of ships engine
Autorzy:: Witkowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/327564.pdf
Data publikacji:: 2008
Wydawca:: Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:: diagnostyka
silnik okrętowy
układ doładowania
sprężarka powietrza
diagnostics
marine diesel engine
turbocharger system
air compressor
Opis:: W referacie przeanalizowano możliwość diagnozowania elementów turbosprężarkowego układu doładowania okrętowego silnika o zapłonie samoczynnym. Omówiono znaczenie diagnostyki tego układu wskazując najważniejsze konsekwencje wynikające z zakłócenia procesu wymiany ładunku spowodowane pogorszeniem pracy układu doładowania. Omówiono problem oceny w warunkach eksploatacyjnych stanu technicznego filtra powietrza, sprężarki ładującej chłodnicy powietrza oraz turbiny. Wykazano istotne znaczenie pomiaru masowego natężenia przepływu powietrza przez sprężarkę w diagnostyce parametrycznej układu doładowania. W oparciu o wyniki badań własnych wykazano możliwość wykorzystania w praktyce eksploatacyjnej, do pomiaru masowego natężenia przepływu powietrza, pomiaru spadku ciśnienia na konfuzorze sprężarki.
The aim of the following paper is to analyze diagnostic possibilities concerning the elements of turbocharger system in ship's diesel engine. Demeaning of diagnostics of this system has also been discussed pointing out the most important consequences resulting from disturbances taking place in the process of gas charge exchange caused by deterioration of supercharger system activity. Evaluation problem concerning technical condition of air filter, supercharger, air cooler and turbine during exploatation process, has also been taken into consideration. Mass intensity of air flowing trough the compressor and the importance of its measurement has been pointer out in parameter diagnostic of turbocharger system. Basing also on own research work it was possible to show a chance of using it in exploatation practice. To measure mass intensity of air flow, it is advised to measure pressure drop on the confusor of the compressor.
Źródło:: Diagnostyka; 2008, 2(46); 169-172
1641-6414
2449-5220
Pojawia się w:: Diagnostyka
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Biogas as a fuel for diesel engines
Autorzy:: Wierzbicki, S.
Powiązania:: https://bibliotekanauki.pl/articles/246845.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: biogas
methane
diesel engine
dual-fuel supply system
Opis:: The pursuit of reduced greenhouse gas emissions, as well as the increased share of renewable fuels in the overall energy balance has led to a search for alternative energy sources. One of the fuels on which great hopes are set as fuel for engines is biomethane or biogas, whose main component is methane. Biogas can be obtained from different products by using different technologies, so that it has potential as a widelyavailable fuel, which is quite easy to produce. The percentage of methane in biogas depends on the technology for obtaining biogas and ranges from 35% to around 75%. The largest biogas sources can be animal farms, where it is obtained from animal excrement. Another source is sewage treatment plants and rubbish dumps, where substantial quantities of biogas are obtained as a result of natural processes occurring in waste dumping sites or sewage. Biogas can also be acquired from waste obtained from fruit and vegetable processing as well as waste from meat plants. This paper examines the possibility of using biogas as a fuel for diesel engines. In these engines, the combustion of biogas (methane) requires the application of a dual-fuel supply system in which liquid fuel initiating gas fuel selfignition will be injected into the combustion chamber along with methane. The paper also contains example results showing the effect of the methane dose on the course of the combustion process in diesel engines.
Źródło:: Journal of KONES; 2012, 19, 3; 477-482
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Assessing the topicality of the problem related to the explosion of crankcases in marine main propulsion engines (1972–2018)
Autorzy:: Wiaterek, Daniel
Chybowski, Leszek
Powiązania:: https://bibliotekanauki.pl/articles/24202539.pdf
Data publikacji:: 2022
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: crankcase explosion
fire safety
human casualties
marine diesel engine
main engine
marine engine
prime mover
main propulsion system
incident
accident
internal combustion engine
trunk piston engine
crosshead engine
Opis:: The purpose of this paper is to present the results of a query aimed at assessing the validity of the topic of crankcase explosions prevention in the main marine engines. The study takes into account the engine type, engine manufacturer, ship’s age, accident severity, ship’s location at the time of the incident, and the share of fatal accidents in the analyzed population of crankcase explosions. One of the primary hazards associated with offshore and deep-sea ship operations – and primarily ship power plants – are fires and explosions that result in accidents and incidents with an average frequency of 60 days. This paper discusses the actuality of crankcase explosion hazards in the main propulsion engines of various types of sea vessels. The assessment was made based on the results of a statistical analysis of historical data from 1972 to 2018. The methodology consisted of three stages: (1) a selection query to obtain the source data, (2) analysis of the obtained results (data separation, extraction of additional information, and statistical analysis), (3) synthesis of the obtained information, and drawing conclusions about the numerical indicators describing the statistical distribution of individual events for the given evaluation criteria. The analysis showed that the risk of crankcase explosions affects ships of all ages – both in crosshead (31%) and trunk piston engines (61%) – and that the number of serious incidents (67%) remained constant over the investigated period. Half of all incidents occurred on vessels younger than 15 years old. 58% of explosions took place in engines of the most popular prime movers manufacturers. The probability that a main engine crankcase explosion will result in injury or death is 17.34%.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2022, 71 (143); 33--40
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Implementing SimulationX in the modelling of marine shafting steady state torsional vibrations
Autorzy:: Vulić, Nenad
Bratić, Karlo
Lalić, Branko
Stazić, Ladislav
Powiązania:: https://bibliotekanauki.pl/articles/1573607.pdf
Data publikacji:: 2021
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: mechanical dynamic system
critical speeds
torsional stress amplitudes
two-stroke marine Diesel engine
normal firing
Opis:: Marine propulsion shafting systems are exposed to torsional vibrations originating from excitations in their prime movers and propellers. It is essential to analyse their steady state response in the earliest stage of ship design. The paper describes the implementation of SimulationX software based upon simulation modelling for these calculations. This software can be used either by the design office of the shipyard or by the classification society for verification within the plan approval phase. Some specifics of the input data preparation are briefly discussed. In addition, the simulation results depend on the modelling approach chosen. For these reasons, the real two-stroke Diesel engine ship propulsion system was chosen and several different models were implemented for system modelling. SimulationX calculation results are compared with those of two well-known and field-proven programs that use an analytical approach. Finally, the results are compared with the measurements performed on the actual newly built ship. Discussion reviews the selected SimulationX model, and its verification and validation in the case of engine cylinders with normal ignition.
Źródło:: Polish Maritime Research; 2021, 2; 63-71
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Adjustment of cylinder lubricating oil of marine slow-speed engines
Autorzy:: Van Doan, D.
Murawski, L.
Powiązania:: https://bibliotekanauki.pl/articles/244949.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: cylinder lubricating oil system
slow-speed engine
optimal adjustment
Sulzer diesel engines
układ smarowania cylindrycznego oleju
silnik obrotowy
regulacja optymalna
silnik wysokoprężny Sulzer
Opis:: The article refers to the common task of lubrication system. The fast development of the world's maritime sector, makes competition among countries increasing. Because of the deterioration of the global economy, the shipping companies, ship-owners want to reduce freight rates, to meet safety requirements, as well as improving conditions of exploitation and operating the machines to prevent the pollution of the marine environment. While exploiting the diesel engine in general and Sulzer diesel engines in particular, ship owners are always eager to reduce the operating cost and still ensure the engine running are safe and reliable. Provide an example of how to calculate the amount of cylinder lubricating oil according to the theory of slow-speed marine engines. The article refers to the costs of the operation and exploitation of ship, offer solution to reduce extraction costs by optimizing the amount of lubricating oil for the cylinders. The analyses in the article are based on Sulzer RTA engines. The article also refers to the level of actual lubrication oil for the cylinders of slow-speed marine engines during operation and exploitation based on the practical experience of the chief engineers, who had ever worked with these engines. The optimal adjustment of cylinder lubricating oil of Sulzer RTA diesel engines to reduce the operating cost but still ensure the engine running are safe and reliable and the problems need to be noted in the process of adjustment.
Źródło:: Journal of KONES; 2017, 24, 1; 113-119
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Experimental research of oil pump for a compression-ignition aircraft engine
Autorzy:: Szlachetka, Marcin
Sochaczewski, Rafał
Gęca, Michał Jan
Powiązania:: https://bibliotekanauki.pl/articles/133729.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: diesel engine
opposed-piston engine
aircraft propulsion system
oil system
oil pump
silnik wysokoprężny
silnik o tłokach przeciwbieżnych
układ napędowy samolotu
układ olejowy
pompa oleju
Opis:: The paper presents an analysis of the constructions of oil pumps for an aircraft compression ignition engine. It is a two-stroke liquid-cooled engine with a power of 100 kW. The system has 3 cylinders and 6 opposed pistons. The paper estimates the required oil pump capacity to make the engine components well-lubricated. Next, automotive oil pumps for diesel engines are analyzed to select a correct pump for aircraft diesel engine applications. Three pump constructions of different constructions and dimensions of a rotor were select-ed. A measurement bench was designed and built to test these oil pumps in the range of pump shaft speeds from 0 to 4500 rpm and volumetric flow rate up to 150 l/min. The bench also enables stabilization of oil temperature at the required level within the range from 30 to 120oC. In addition, flow resistance through engine slide bearings was simulated by changing the position of a throttling valve at the pump output to regulate pressure in the range of 0-700 kPa. The obtained capacity characteristics of individual pumps versus on oil pressure and temperature allowed us to find an appropriate oil pump to make individual engine nodes well-lubricated.
Źródło:: Combustion Engines; 2019, 58, 4; 142-146
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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