INFLUENCE OF AIR TEMPERATURE ON DURATION OF IMPULSE OPENING SPRAY IN THE ENGINE INTAKE MANIFOLD WHILE CAR OPERATION IN VARIOUS CONDITIONS
https://doi.org/10.26518/2071-7296-2019-1-32-39
Abstract
Introduction. The air temperature in the intake manifold is used by an electronic engine control unit to adjust the injection time of the fuel injector top. The intake air temperature is variable and depends on the operating conditions of the vehicle. When air intake temperature decreases, the duration of the nozzle opening pulse increases and, conversely, as air intake temperature increases, the duration of the
nozzle opening pulse decreases.
Materials and methods. The paper demonstrates the analysis of the air temperature effect in the intake manifold of the engine on the duration of the injector opening pulse while the engine is idling and when the vehicle is moving with different speed conditions on the flat, mountainous and alpine sections of the road.
Results. As a result, the research showes that the movement of the car at high speeds on the flat sections of the road leads to a significant decrease of air temperature in the intake manifold and an increase in the duration of the injector opening pulse. Moreover, when the vehicle moves on the mountainous sections of the road, the effect of air temperature in the intake manifold on the nozzle opening impulse duration is insignificant, since the speed of the vehicle movement is influenced by the complexity of the terrain and the parameters of the mountain and high-mountain roads.
About the Authors
B. U. Akunov
Kyrgyz State Technical University (KSTU) named after I. Razzakov, Bishkek
Kyrgyzstan
Kyrgyzstan
Candidate of Technical Sciences, Associate Professor of the Automobile Transport Department
720044, Kyrgyz Republic, Bishkek, 66, Ch. Aitmatov Ave.
K. Dj. Kasymbekov
Kyrgyz State Technical University (KSTU) named after I. Razzakov, Bishkek
Kyrgyzstan
Kyrgyzstan
Undergraduate Student of the Automobile Transport Department
720044, Kyrgyz Republic, Bishkek, 66, Ch. Aitmatov Ave.
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Review
For citations:
Akunov B.U., Kasymbekov K.D. INFLUENCE OF AIR TEMPERATURE ON DURATION OF IMPULSE OPENING SPRAY IN THE ENGINE INTAKE MANIFOLD WHILE CAR OPERATION IN VARIOUS CONDITIONS. The Russian Automobile and Highway Industry Journal. 2019;16(1):32-39. (In Russ.) https://doi.org/10.26518/2071-7296-2019-1-32-39
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