Autor: Ambrozik, T. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The effect of exhaust gas recirculation on the process of combustion in the self-ignition engine
Autorzy:: Ambrozik, T.
Kosno, M.
Powiązania:: https://bibliotekanauki.pl/articles/950109.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: exhaust gas recirculation (EGR)
diesel engine
start of combustion
nitrogen of oxides
Opis:: The paper compares the basic parameters of the process of combustion in the Fiat MultUet 1.3 SDE 90 KM with and without an exhaust gas recirculation system, running according to load characteristics with the following engine crankshaft rotational speeds: n=l200 ipm, 1750 rpm and 3000 rpm. During testing, the engine was supplied with commercial diesel oil. The tested engine was provided with external exhaust gas recirculation consisting in supplying a specific amount of exhaust gas back to the cylinder via an EGR electric solenoid valve. The exhaust gas delivered to the cylinder was cooled. Exhaust gas is composed of inert gases that do not take part in the combustion process. This causes, above all, a lower rate of pressure increase in the cylinder and a lower heat release rate. Thanks to exhaust gas recirculation, lower maximal temperatures prevail in the cylinder, and the engine's operation is "softer." During experimental testing, the variation of cylinder pressure and chamber pressure, the injector operation control current magnitude, effective power, torque and the hourly fuel consumption, as well as the exhaust gas recirculation rate. Actual indicator diagrams plotted were used for determining the heat release characteristics, based on which the percentage fractions of the burned out fuel charge injected during one engine running cycle namely 5, 10, 50 and 90% fractions were determined. In addition, the indicator indices were determined. The paper has demonstrated the effect of exhaust gas recirculation on the processes occurring inside the cylinder in the self ignition internal combustion engine.
Źródło:: Journal of KONES; 2014, 21, 2; 7-14
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: External speed characteristics in engine with multi-stage fuel injection
Autorzy:: Ambrozik, A.
Ambrozik, T.
Kurczyński, D.
Łagowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/245939.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: piston internal combustion engine
characteristics
engine work parameters
test bench investigations
engine fuels
Opis:: Increasingly higher demands pnt on piston internal combustion engines arę aimed at reducing their harmful impact on the natural environment. This refers primarily to nitrogen oxides, particulate matter and noise emissions. The reduction in emissions ofnoxious components oj exhaust gases in engines is achieved by means of, among others, the use of catalysts decreasing nitrogen oxide emissions, particulate matter filters and oxidising catalysts decreasing carbon monoxide and hydrocarbon emissions. Common Rail injection systems make it possible to increase the engine power, and to reduce fuel consumption, exhaust gas toxicity and noise produced by engines. With Common Rail systems, the pattern of fuel injection process can be designed, consequently the combustion process can be controlled. The paper presents the results of test bench investigations into a compression ignition 1.3 Multijet engine with multistage fuel injection, which is manufactured in Poland by Fiat-GM Powertrain Polska Company. The tests were conducted at a stand constructed at the Heat Engines Laboratory ofthe Kielce University of Technology. The scope of investigations included determining economic and energetic parameters of the engine work, and also environmental parameters, such as the concentration of nitrogen oxides NOX, carbon monoxide CO and carbon dioxide CO2 in exhaust gases, and exhaust gas smokiness. In tests, the engine operated under speed conditions and it was fuelled by two commercial diesel oils that had different physical and chemical properties.
Źródło:: Journal of KONES; 2010, 17, 1; 9-16
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Selected load characteristics of 1.3 MultiJet engine
Autorzy:: Ambrozik, A.
Ambrozik, T.
Kurczyński, D.
Łagowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/247028.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engines
transport
diagnostics
multi-stage fuel injection
Opis:: The paper presents results of investigations and the assessment of multi-stage fuel injection in MultiJet 1.3 engine operating under load conditions. Basic work parameters of the examined piston internal combustion engine, such as: effective power, torque, hour and unit fuel consumption and the concentration of the most important noxious components of exhaust gases were provided. Tests were conducted at the test bench stand that comprised the engine under consideration, eddy-current brake by Elektromex EMX company, control and measurement unit to control the test bench and to take measurements of parameters of the engine and brake work, the measurement system for fast-changing quantities, fuel-flow and air-flow meters, and the exhaust gas analyser. During the tests, the engine operated under load conditions at the crankshaft rotational speed: n=l200, 1750, 2400, 3800 and 4200 rpm. Such values of speed were selected because of the multi-stage fuel injection and the engine's being able to reach the maximum torque M=200Nm at the crankshaft rotational speed n = 1750 rpm and the maximum power output N=90HP, delivered at n=4200 rpm. Application of advanced engine technologies and advanced control system allowed meeting high requirements concerning energy and economic as well as environmental indices.
Źródło:: Journal of KONES; 2010, 17, 2; 9-15
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Examination of fast-changing quantities in engine with common rail injection system
Autorzy:: Ambrozik, A.
Ambrozik, T.
Kurczyński, D.
Łagowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/243895.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engines
common rail
multi-phase injection
indicator diagram
Opis:: The paper aims to present the results of investigations into the engine with Common Rail system that performs multi-phase injection. The scope of investigations included measurements and assessment of fast-changing quantities. The paper provides the research stand description and a block diagram o f the system for taking measurements offast-changing quantities, including the system measuring the intensity of the current that controls the injector operation. The experimental results discussed in the paper were derived from introductory investigations into measurements of the air-fuel mixture pressure in the engine cylinder and those of the injector needle lift, which were assessed on the basis of measurements of the intensity of the injector-controlling current. Tests were performed while the engine operated under external speed characteristics and under load characteristics at the crankshaft rotational speed n=l200 rpm and n =3800 rpm. During tests, depending on speed and load characteristics of the engine operation, the ECU performed different strategies of fuel injection. The fuel injection control system madę it possible to complete three injection stages in a single work cycle of the internal combustion engine (pilot injection, pre-injection and the main injection). The maximum fuel pressure in the common rail amounted to 160 MPa. The engine was fuelled by commercial diesel oil.
Źródło:: Journal of KONES; 2010, 17, 3; 17-24
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Conversion of Fiat 0.9 MultiAir engine to multi - fuelling
Autorzy:: Ambrozik, A.
Ambrozik, T.
Kurczyński, D.
Łagowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/247877.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engines
fuels
fuel supply system
liquefied petroleum gas
natural gas
Opis:: The development of human civilisation has always been related to an increase in energy demand. The growth of transportation and an increase in the number of automobile vehicles in service produce a rising demand for fuel. Before piston IC engine is replaced with a different effective power source, it is necessary to use gaseous fuels on a larger scale than ever before. The natural resources of gaseous fuels are estimated to be much higher than crude oil reserves. Additionally, engines can run on biogas, i.e. gaseous renewable fuel. The use of gaseous fuels means lowering the harmful effect engines produce on the natural environment. Multi-fuelling, i.e. switching from one fuel to another, could be an advantageous feature of automobile combustion engine, both from the user’s standpoint and with respect to environmental concerns. Gaseous fuels have desirable properties that are especially suitable for fuel of spark ignition engines. The paper presents the engine test bench constructed at the Laboratory of Heat Engines of the Kielce University of Technology. The test stand comprises modern spark ignition engine Fiat 0.9 MultiAir and the eddy-current brake. At the test stand, the engine was converted to fuelling with three fuels, namely petrol, LPG gas blends and compressed natural gas (CNG). The engine could run alternatively on the three fuels mentioned above. The stand is equipped with an external unit to control the engine work, which makes it possible to extend the range of the engine investigations.
Źródło:: Journal of KONES; 2013, 20, 4; 9-15
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: The operation parameters of an engine supplied with diesel oil and B20 fuel
Wskaźniki pracy silnika zasilanego olejem napędowym i paliwem B20
Autorzy:: Ambrozik, T.
Bozkir, M.
Martinez, M. R.
Ucar, M.
Powiązania:: https://bibliotekanauki.pl/articles/133601.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: combustion engine
exhaust gases emission
operation parameters of the engine
tłokowy silnik spalinowy
emisja spalin
wskaźniki pracy silnika
Opis:: The purpose of the paper is to compare selected operation parameters of an engine supplied with, respectively, commercial diesel oil and the B20 mixture (80 v/v % of diesel oil and 20 v/v % of rape oil fatty acid methyl esters). During the tests, the engine was running following the load characteristics at crankshaft rotational speed of 1750 rpm and 4000 rpm, respectively. The paper describes the test stand and block diagram of a system designed for measuring cylinder pressure, injection line pressure and injector operation control current. The emissions of nitrogen oxides, hydrocarbons, carbon monoxide and carbon dioxide were measured during the tests.
Celem artykułu jest porównanie wybranych parametrów pracy silnika zasilanego handlowym olejem napędowym i mieszaniną B20 (80 % V/V oleju napędowego i 20 % V/V estrów metylowych kwasów tłuszczowych oleju rzepakowego). Podczas badań silnik pracował według charakterystyk obciążeniowych przy prędkościach obrotowych wału korbowego 1750 obr/min i 4000 obr/min. W artykule opisano stanowisko badawcze oraz schemat blokowy układu do pomiaru ciśnienia w cylindrze, ciśnienia w przewodzie wtryskowym i prądu sterującego pracą wtryskiwacza. Podczas badań mierzono emisję tlenków azotu, węglowodorów, tlenku węgla i dwutlenku węgla.
Źródło:: Combustion Engines; 2015, 54, 3; 1036-1041
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Effect to the fuel system type on energy, economic and environmental indicators of the spark-ignition engine work
Autorzy:: Ambrozik, A.
Ambrozik, T.
Kurczyński, D.
Łagowski, P.
Jankowski, R.
Kowalczyk, W.
Powiązania:: https://bibliotekanauki.pl/articles/245062.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: vehicles
combustion engines
fuel supply system
emission of exhaust gases
Opis:: The paper presents selected results of tests on the Fiat Panda I car powered by 1.2 dm3 spark ignition engine. The engine had production installed fuel system with the single-point petrol injection. To improve its in-service performance, the engine was fitted with the multi-point injection fuel system. The assessment of the indicators of the work of the engine, fitted with single-point, or alternatively, multi-point injection fuel system, was conducted on the basis of the tests performed on the MAHA chassis dynamometer. First, tests were run for single-point injection fuel system. Next, the same tests were performed when the engine was fitted with the multi-point injection fuel system. In the tests, engine power, torque, fuel consumption and the concentrations of the exhaust gas components were measured. The latter included carbon monoxide CO, carbon dioxide C02, hydrocarbons HC, nitrogen oxides NOx, and oxygen 02. AVL Digas 4000 exhaust gas analyser was used to take measurements of the concentrations of the basic components of the exhaust gas and of the excess air ratio %u03BB. The investigations were conducted by performing the inertia test and by using the dynamometer to determine the basic indicators of the engine operation. In the investigations, the crankshaft rotational speed ranged from 1500 to 6500 rpm with 500 rpm step. The experimental results made it possible to evaluate how the manner and site of fuel delivery affect the engine -work indicators.
Źródło:: Journal of KONES; 2014, 21, 3; 7-14
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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