Análise de veículo movido por um motor de combustão interna de ciclo Otto aspirado e sobrealimentado

Abstract

This work experimentally analyzed the influence of turbocharger systems on internal combustion engines. The increase in torque and power were measured in bench and inertial roller dynamometer, which is of great importance in the automotive industry, where more and more engines are increasingly sought. It was used a 2 L engine, initially operating aspirated with type C podium gasoline, and torque and power measurements were made directly on the flywheel and also on the wheels of the vehicle, being possible to verify its transmission loss. To supercharge the engine, the turbocharger assembly was selected and the components sized for the highest fuel flow required (pump and injectors), and a programmable electronic management module was also selected. Through this module the injection and ignition maps were prepared for the engine operation with type C podium gasoline and blends of this gasoline and ethanol, being the turbocharged engine experimented with these fuels. Emissions tests for the aspirated and supercharged engine were performed only on the treadmill dynamometer and compared with the standard of CONAMA 418/2009, and CO, HC and CO2 levels were measured. The vehicle operating on the E100 had the best results with torque of 218.6 N · m and power of 114.5 kW, with emission levels in accordance with the standard (sic).