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Wyszukujesz frazę "spark ignition combustion engine" wg kryterium: Temat


Tytuł:
The impact of alcohol admixture with gasoline on carbon build-up and fuel injectors performance
Autorzy:
Stępień, Zbigniew
Pielecha, Ireneusz
Cieslik, Wojciech
Szwajca, Filip
Powiązania:
https://bibliotekanauki.pl/articles/2087005.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
spark ignition combustion engine
direct injection
fuel injectors
injector coking
gasoline
alcohol
injector operating parameters
Opis:
The operating conditions of injectors in spark ignition engines with direct fuel injection make them susceptible to coking, which leads to a reduced quality of fuel atomization. This can be observed by a drop in performance and an increase in exhaust emissions, especially particulate matter. One effective method of reducing injector coking is by using detergentdispersing gasoline additives. The article describes the effect of using an admixture with a varied alcohol content on the quantitative and qualitative fuel atomization indicators. The research consisted of a 48-hour engine test, done in accordance with the CEC F-113-KC procedure (CEC-F-113 test). After each test cycle, the injectors underwent optical tests with the use of an isochoric chamber. The spray penetration and surface area were analyzed at a set of different fuel injection parameter values. The research performed resulted in determining the influence of each tested admixture on the change of injection time and on the geometric indicators of the fuel spray. The obtained characteristics of the engine in operation and conducted stationary tests enabled the operational evaluation of the impact an alcohol admixture with gasoline fuels had on key engine parameters.
Źródło:
Eksploatacja i Niezawodność; 2022, 24, 2; 226--236
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of ignition system damage on the emission of toxic substances in a spark-ignition internal combustion engine
Autorzy:
Dziubiński, Mieczysław
Siemionek, Ewa
Drozd, Artur
Ścirka, Michał
Kiszczak, Adam
Sobota, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/133381.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
spark-ignition internal combustion engine
emission of toxic substances
exhaust standards
ignition system defects
diagnostics
silnik spalinowy o zapłonie iskrowym
emisja substancji toksycznych
normy emisji spalin
uszkodzenia układu zapłonowego
diagnostyka
Opis:
The article discusses the impact of ignition system damage on the emission of toxic subcategories in a spark-ignition internal combustion engine. The aim of the work was to develop an analytical model of ignition system diagnostics, test performance and comparative analysis of the results of simulations and experiments. The model developed allows to analyse the basic parameters of the ignition system affecting the content of toxic substances in the exhaust. Experimental tests were carried out using the MAHA MGT5 exhaust gas analyser for four different combustion engines fueled with petrol at various operating conditions. During the tests, the content of toxic substances in the exhaust gas of a properly working engine and the engine working with damage to the ignition system were registered. The tests will be used to assess the impact of the damage of the spark-ignition engine on the emission of individual components of toxic fumes.
Źródło:
Combustion Engines; 2019, 58, 4; 86-92
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diagnosing faults in the timing system of a passenger car spark ignition engine using the bayes classifier and entropy of vibration signals
Autorzy:
Czech, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2203067.pdf
Data publikacji:
2022
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
internal combustion engines
diagnostics
Bayesian classifier
pattern recognition
spark-ignition internal combustion engine
exhaust valve of the internal combustion engine
silniki spalinowe
diagnostyka
klasyfikator bayesowski
rozpoznawanie wzorca
silnik spalinowy z zapłonem iskrowym
zawór wydechowy silnika spalinowego
Opis:
Today's systems for diagnosing the technical condition of machines, including vehicles, use very advanced methods of acquiring and processing input data. Presently, work is being conducted globally to solve related problems. At the moment, it is not yet possible to create a single procedure that would enable the construction of a properly functioning diagnostic system, regardless of the selected object to be diagnosed. Hence, there is a need to conduct further research into the possibility of using already developed methods, as well as their modification to other diagnostic cases. This article presents the results of research related to the use of the Bayes classifier for diagnosing the technical condition of passenger car engine components. Damage to the exhaust valve of a spark ignition engine was diagnosed. The source of information on the technical condition was vibration signals recorded at various measuring points and under different operating conditions of the car. To describe the nature of changes in the vibration signals, the entropy measures were determined for the decomposed signal using the discrete wavelet transform is proposed.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2022, 116; 83--98
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A research device to control ignition and injection parameters for a spark - ignition engine
Autorzy:
Grochowska, K.
Powiązania:
https://bibliotekanauki.pl/articles/248117.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
road transport
combustion engines
spark-ignition engine
controlling
Opis:
This paper describes the possibility of controlling injection and ignition parameters of a spark-ignition engine performed with the author's controller. The modification of output signals according to given parameters of the interface is shown in this article. Simulations, supported by oscilloscope graphs, were performed using the controller designed to work with four-cylinder spark-ignition engine. This device allows modifying the ignition and injection parameters depending on the values entered in the author's interface on the PC. This interface enables a serial transmission through a RS 232 serial port and sending data to the microcontroller. The controller allows for a measurement of the values of the sensors and a generation of output signals for the actuators. The simulation done in this work involves the modification of injection and ignition angle parameters: ignition angle of advance (KWZ), injection angle of advance (KWW) and time parameters: time of injection (KW), time of ignition (KZ). Also shown in this article are possibilities of adapting the controller of the spark-ignition engine to a simultaneous, batched and sequential injection mode.
Źródło:
Journal of KONES; 2012, 19, 1; 155-162
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research effects of novel combustion system with semi-open combustion chamber using rapid compression machine
Autorzy:
Leżański, T.
Sęczyk, J.
Wolański, P.
Powiązania:
https://bibliotekanauki.pl/articles/245605.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
internal combustion engines
spark ignition
combustion processes
engine combustion systems
combustion process visualization
Opis:
The combustion system with semi open combustion chamber (SOCC) was originally elaborated in Aircraft Engine Department of Warsaw University of Technology. In this system the original combustion chamber of the standard SI engine, was divided by partition in prechamber and main combustion chamber, but yet this division exists only when the piston is close to TDC, on the contrary by the rest of the cycle the chambers are fully open. The system operation mechanism, the visualization research results, the high speed changed of the pressure measurements, was presented in this paper. The influence on the system performances of the different combustion systems parameters: the prechamber volume, the nozzle hole diameter in the partition, the ignition place, the compression ratio, and the ignition advance angle (IAA), on the basis of the research results, using rapid compression machine was presented in this paper. All research results show, that the best results of the system operation can be obtained if the stream outflow from prechamber to main combustion chamber starts when the piston is at TDC, and if the stream energy will be so big to displace all main combustion chamber before the clearance between partition and piston crown was opened. If the system operated correctly, the combustion time shortening, the growth of the maximum cycle pressure, and the combustion efficiency increase were obtained.
Źródło:
Journal of KONES; 2014, 21, 4; 297-310
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation model of combustion engine with direct injection of hydrogen
Autorzy:
Blažek, J.
Brabec, P.
Powiązania:
https://bibliotekanauki.pl/articles/242159.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
Simulation model of combustion engine
direct hydrogen injection
Ricardo Wave
combustion process
spark ignition engine
Opis:
Fuel mixture formation inside a cylinder has become used more frequently in spark ignition engines in recent years. gas internal combustion engines can also benefit from this concept as direct injection into an engine 's cylinder during the compression stroke not only increases its volumetric efficiency but also eliminates adverse anomalies in the combustion process. This paper focuses on the development of a simulation model for a spark ignition engine with direct hydrogen injection into a cylinder. The Wave software was used for the simulation. A part of the paper depicts the model's verification. The study utilized a three-cylinder internal combustion engine with the total cylinder volume of 1.2 dm3. The concept of the engine is based on new, high-pressure injectors with 10 MPa inlet pressure (gas-hydrogen injection directly into the engine cylinder). Utilization of internal fuel mixture formation can be beneficial due to its enabling the control of the combustion process and gaseous emission generation. From the viewpoint of the engine's design, however, internal fuel mixture utilisation is more complicated as injectors have to be built into the cylinder head. The actual engine construction is housed in laboratories of the Technical University of Liberec, Department of Vehicles and Engines.
Źródło:
Journal of KONES; 2009, 16, 3; 15-21
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the impact of damage to the injection system on the emission of toxic substances in a spark-ignition internal combustion engine
Autorzy:
Dziubiński, Mieczysław
Siemionek, Ewa
Drozd, Artur
Żur, Paweł
Ścirka, Michał
Tatarynow, Dawid
Powiązania:
https://bibliotekanauki.pl/articles/133801.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
spark-ignition internal combustion engine
exhaust gas toxicity
exhaust gas standards
injection system damage
exhaust gas analyzer
silnik spalinowy o zapłonie iskrowym
toksyczność spalin
normy emisji spalin
uszkodzenie układu wtryskowego
analizator spalin
Opis:
The article presented analyses the impact of damage to the injection system on the emission of toxic subsumes in a spark-ignition internal combustion engine. The work focuses on the basic elements of the injection system, which include injectors, throttle position sensor, coolant temperature sensor and lambda sensor. In addition, a catalytic reactor has been included in the context of its direct cooperation with the injection system under set conditions. The toxicity of exhaust gases of different spark-ignition engines fueled with petrol or gas in determined operating conditions using the MAHA MGT5 exhaust gas analyser was tested. The content of toxic substances in the exhaust gases was recorded for the correct settings of the injection system and for the engine working with damage to this system. The tests carried out will allow to assess the impact of the damage of the injection system on the toxicity of exhaust gases.
Źródło:
Combustion Engines; 2019, 58, 4; 112-118
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical optimization of the ignition angle of SI engine
Numeryczna optymalizacja zaplonu w silniku spalinowym ZI
Autorzy:
Jamrozik, A.
Powiązania:
https://bibliotekanauki.pl/articles/793708.pdf
Data publikacji:
2011
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
internal combustion engine
ignition advance angle
numerical optimization
fuel mixture
numerical modelling
combustion process
piston engine
spark ignition engine
fuel supply system
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elastyczność współczesnych silników o zapłonie iskrowym
Flexibility of contemporary spark ignition engines
Autorzy:
Mysłowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/314172.pdf
Data publikacji:
2011
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
silnik o zapłonie iskrowym
silnik spalinowy
silnik o zapłonie samoczynnym
spark-ignition engine
combustion engine
compression-ignition engine
Opis:
W pracy przedstawiono możliwości dynamiczne silników spalinowych o zapłonie iskrowym nowej generacji oraz tych silników z różnymi rodzajami doładowania. Dokonano porównania współczynników elastyczności omawianych silników oraz ich porównania z silnikami o zapłonie samoczynnym.
The paper presents the efforts to improve the flexibility of motor ignition engines intended to power cars. Discussed the latest developments in this field made by the leading car companies.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2011, 12, 5; 307-311
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of combustion of gasoline and methanol in the si engine dual fuelled
Autorzy:
Stelmasiak, Zdzisław
Powiązania:
https://bibliotekanauki.pl/articles/242301.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
methyl alcohol
gasoline
spark ignition engine
combustion parameters
thermal efficiency
dual fuelling
Opis:
In the paper are presented comparative tests of combustion of gasoline and combustion of methanol in spark ignition engine of the Fiat 1100 MPI type. The engine was equipped with a prototype suction manifold with duplex injectors on each cylinder. Implemented system enabled dual fuel operation of the engine with any fraction of the alcohol. Engine performance and start-up capabilities were the same like in case of the operation on gasoline only. Type and parameters of the fuel supply can be changed in any time during operation of the engine. The study dealt with comparison of a selected parameters used to assessment of combustion of the fuels: pressure of the working medium p, rate of pressure rise dp/d, heat release rate dQ/d, temperature of the working medium, and combustion angle. The investigations pointed at considerable differences in run of combustion of the gasoline and combustion of the methanol, as autonomous fuels. Moreover, addition of methanol to gasoline results in considerable differences in combustion process, comparing to combustion of gasoline mixtures. The combustion goes on more dynamically, especially during initial phase of the process, while total time of the combustion is shorter. Effects of these changes are: higher maximal pressures, faster rates of pressure growth and heat release. Extent of change of combustion parameters depends on methanol fraction in total dose of the fuel supplied to the engine. Addition of the methanol effects in growth of general efficiency of the engine, which increases together with growth of methanol fraction and engine load. Absolute growth of the efficiency amounted to 2-5%, while relative growth amounted to 6-16%. Such significant growth of the efficiency should lead to reduction of energy consumption during engine operation.
Źródło:
Journal of KONES; 2013, 20, 1; 317-328
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of indication errors of the SI gas engine with a prechamber
Analiza bledow indykowania gazowego silnika ZI z komora wstepna
Autorzy:
Jamrozik, A.
Powiązania:
https://bibliotekanauki.pl/articles/793719.pdf
Data publikacji:
2011
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
engine
two-stage combustion system
excess air factor
indicated work
gas engine
prechamber
thermal process
internal combustion engine
spark ignition
piston engine
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model validation of the SI test engine
Walidacja modelu badawczego silnika ZI
Autorzy:
Jamrozik, A.
Powiązania:
https://bibliotekanauki.pl/articles/792417.pdf
Data publikacji:
2013
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
engine test
spark ignition engine
internal combustion engine
numerical analysis
AVL FIRE software
combustion process
crank angle
thermal cycle
modelling
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2013, 13, 2
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of using a dual-injector fuel system on a process of combustion in a spark-ignition engine
Autorzy:
Sendyka, B.
Noga, M.
Powiązania:
https://bibliotekanauki.pl/articles/246083.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
dual-injector fuel system
gasoline
direct injection
port injection
combustion
spark-ignition engine
Opis:
This paper analyzes aprocess of combustion in a spark-ignition engine. The aim of the analysis was to determine the differences in the combustion process between the engine with a classic multipoint injection system and a system which injects fuel directly to the cylinders as well. To aid in the analysis the measurements of the high variable pressure in the engine's cylinder against the crankshaft angle were taken. This allowed us to obtain indicated diagrams for both types of engines. To eliminate distortions, both functions were approximated using combined functions. The other basic parameters were also measured: torque, RPM and instantaneous fuel consumption. The analysis of the indicated diagrams yielded an indicated mean pressure and thermal efficiency for both fuel systems. Then, a comprehensive analysis ofpressures in cylinders was performed in order to determine the way the flame spreads in the cylinder for the two types of engines. The results obtained from this analysis show that the speed of combustion is greater for the charge formed by the dual-injector fuel system. The increased speed of the combustion, especially when it reaches a 50% fraction of the exhaust gas in the cylinder, is what accounts for the increase in the indicated mean pressure and the increase in the thermal efficiency of the engine with a dual-injector fuel system. The time of the spreading of the flame, as well as the fast burn period were reduced. The increased efficiency of the combustion process in the cylinder me ans that the heat losses through the cylinder sleeve are greatly reduced. The results of the research in this paper confirm the purposefulness of using a dual-injector fuel system in a spark-ignition engine.
Źródło:
Journal of KONES; 2010, 17, 1; 389-397
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An impact of using a dual-injection system on a combustion engines working parameters
Autorzy:
Sendyka, B.
Noga, M.
Powiązania:
https://bibliotekanauki.pl/articles/246089.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
dual-injector fuel system
MP1
direct injection
combustion
spark-ignition engine
experimental investigations
Opis:
The paper analyses the impact of using a dual-injection system on the engine's working parameters. The analysis is based on the results of the test stand research on a four-stroke four-cylinder, spark-ignition engine. Dual-injection system combines the multipoint injection with additional injection directly into the combustion chamber. It is used to increase the performance of an engine without affecting the fuel consumption or the low toxicity of exhaust gas. For the purposes of this research an engine from Toyota Yaris was fitted with the direct injection by installing high pressure injectors on the cylinder head. This engine is factory-equipped with MPL Based on the tests performed four controlling characteristics of the torque and brake specific fuel consumption were prepared. The controlling value was the proportion of the fuel injected into the inlet channel to the fuel injected directly into the combustion chamber. The same relationships were also described in relation to temperature of the exhaust gas and the fraction in volume in the exhaust gas of ingredients such as carbon monoxide, carbon dioxide, unburned hydrocarbons and nitric oxide. Points of measurement were decided upon basedon the existing literature on the subject. The analysis of the test results shows apossibility ofa 2-4% decrease in the brake specific fuel consumption for the dual-injection engine in the low and middle RPM range and for the partial loads. The dual-injection engine also shows a decrease in the nitric oxide's fraction in the exhaust gas and a lower temperature of the exhaust gas. There was a small increase in the carbon monoxide and hydrocarbons.
Źródło:
Journal of KONES; 2010, 17, 1; 379-388
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CFD modelling of complete thermal cycle of SI engine
Modelowanie pelnego cyklu cieplnego silnika ZI
Autorzy:
Jamrozik, A.
Tutak, W.
Powiązania:
https://bibliotekanauki.pl/articles/793217.pdf
Data publikacji:
2012
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
spark ignition engine
internal combustion engine
thermal cycle
modelling
AVL FIRE software
simulation
computational modelling
exhaust emission
numerical calculation
combustion process
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 2
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł

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