Análise de eficiência da geometria do rotor do compressor em turboalimentadores veiculares

Abstract

In the present work, the influence of the curvature of the rotor blade of the compressor used in turbochargers applied in internal combustion engines of motor vehicles was studied. The Hot gas test stand measured the increase in efficiency and air mass of the compressor rotor, which is an important device for the development and measurement of turbochargers. Nowadays vehicles face increasing restrictions on emissions levels, the turbocharger has become an important component for research to develop more efficient engines, with lower fuel consumption, and lower pollutants levels. The initial study led to geometries of rotors already used in today's vehicles, which served as the basis for the new geometry of the compressor rotor to be developed. Based on previous models in the literature, a 3D model of the part was created, which can be seen in this work. The 3D model was used to program two prototypes. Once the prototype rotor was completed, the turbocharger was assembled to continue testing on the Hot gas stand. The first test was conducted with the line rotor compressor (standard), which also served as the basis for the development of the new prototype, and then the test was conducted with the new developed prototype. The results indicate a similarity between the compressor wheel developed in relation to the compressor wheel Holset, this can be evidenced in the course of this work. [resumo fornecido pelo autor]