Effect of Atmospheric Pressure on the Fuel Supply System During the Intake Process in Gasoline Engines Operating Between 200 and 4500 m a.s.l.
DOI:
https://doi.org/10.70208/3007.8245.v6.n1.418Keywords:
atmospheric pressure, intake process, naturally aspirated gasoline engines, volumetric efficiency, altitudeAbstract
This study analyzes the effect of atmospheric pressure variation, associated with altitude changes between 200 and 4500 meters above sea level, on the fuel supply system during the intake process in naturally aspirated gasoline engines. The research follows a descriptive-analytical approach, based on determining atmospheric pressure as a function of altitude and local average temperature, in order to assess its impact on the mass of air entering the cylinder. Through the application of theoretical models of air pressure and density, the relationship between the progressive decrease in atmospheric pressure and the reduction of volumetric air filling in the engine as altitude increases is established. The results obtained allow for the interpretation of the consequences of these variations on engine performance, particularly regarding volumetric efficiency and power loss under significant altitude conditions. This study provides well-founded technical criteria for understanding the behavior of naturally aspirated gasoline engines under different altimetric conditions, and serves as a basis for developing adjustment and compensation strategies in automotive applications.
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