Wszystkie pola: military engine - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The experimental assessment of air supply system modification on inlet air filtration efficiency and military vehicle engine effectiveness improvement
Autorzy:: Dziubak, T.
Trawiński, G.
Powiązania:: https://bibliotekanauki.pl/articles/243953.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engines
air filters
filtration efficiency
flow drag
filter absorbency
effective parameters of the engine
mechanical efficiency
Opis:: Specific features of air inlet system of BWP-1 vehicle UTD-20 engine are shown. The tests results of filtration efficiency and air flow drag for BWP-1 vehicle air filter standard version are presented. The necessity of UTD-20 engine air supplying system constructional changes are proved. The inlet air filtration system for BWP-1 engine with the porous filter was proposed and performed. The characteristics of the air purification efficiency (fi=f(mp) and flow drag Delta p- f(mp) Delta p= f(Omega c) for designed air filter were determined. Absorbency of filter for air nominal stream of engine BWP-1 was specified. The designed and executed partition air filter was subjected to comparative tests on an engine test bench. The influence of modernized air filter and fuel dose increase on engine effective parameters were determined. The tests covered comparison of effective parameters (determined for maximum load) of a UTD-20 engine equipped with a standard air filter (variant 1), a modernized air filter (variant 2) and additionally, for the modernized air filter, with injection pump with fuel dose increased (variant 3). There were determined the influence the proposed changes on indicated and effective torque during engine free acceleration and its mechanical efficiency as well.
Źródło:: Journal of KONES; 2010, 17, 3; 79-86
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The influence of on-design bypass turbine engine parameters on multipurpose aircraft missions energy-consuming
Autorzy:: Wygonik, P.
Powiązania:: https://bibliotekanauki.pl/articles/243880.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: military gas turbine engine
military aircraft mission analysis
multipurpose aircraft
energy consuming
Opis:: In the article there was presented a quality assessment of parameters selection of bypass turbine engine for a multipurpose aircraft. It was assumed that the assessment criterion results from the energy-consumption of a flight. The criteria of energy-consumption range were defined as the relation of sum ofenergy supplied to the aircraft on the driven stages to the distance during a mission. The second criterion of unitary energy-consumption is defined as the relation of the movement energy-consumption to the product of the aircraft mass and the route during the elementary stage of the flight. With the use of the already worked out models of the power unit (bypass turbine engine with jet mixer and afterburner) of an aircraft (already known mass and aerodynamic characteristics) there were determined the ranges of thrust which are indispensable for a flight and available for the engine at each stage of the mission: take off, climb, subsonic and supersonic flight and turn with different overload factor. On the example of three chosen aircraft missions (Lo-Lo-Lo, Hi-Lo-Hi and Hi-Hi-Hi) the models of mission energy-consumption were developed. For the accepted change ranges of the comparative cycle parameters of the turbine engine the run of energy-consumption was tested. It was stated that for the assumed data the most energy-consuming mission is Lo-Lo-Lo, wherefore the increase of the compression and the rate of bypass reduces the energy-consumption of the mission.
Źródło:: Journal of KONES; 2010, 17, 1; 499-506
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Electronic engine control systems in modern vehicles in aspect of using it in military combat and logistic vehicles
Autorzy:: Stryjek, R.
Motrycz, G.
Powiązania:: https://bibliotekanauki.pl/articles/241546.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engines
electronic control unit
military vehicles
Opis:: Because of much more restricted norms about polluting gas emission in modern vehicles, there is a need to make better control of fuel combustion. The process of fuel combustion is controlled by electronic control unit (ECU). The unit is analysing signals from many sensors, and when the control unit is not able to correct mistakes in fuel combustion, it turn on a warning indicator light and alarming a driver that the emission of polluting gas is too high. The problem is, that the hole system is undependable. The level of complicated of the system is high. In military vehicles, suddenly lost of power of an engine, because of some little mistake in emission control system, in combat conditions could be very danger. Off course, some armoured vehicles has special program in ECU, but most of the military vehicles are built on civilian vehicles, without any changes. The paper show potentials danger in modern electronics controls units of engines. The authors has also practice not only in vehicles testing and service, but also in preparing sport vehicles for rally. The sports programs for ECU in rally vehicles, allows for example for drive with the full power of the engine, even if the temperature of the cooling system is very high, and in normal vehicles, the ECU would not allow to work in such a condition.
Źródło:: Journal of KONES; 2013, 20, 4; 435-440
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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