Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
DESIGN OF A VALVE CAM TO OPTIMIZE THE VOLUMETRIC EFFICIENCY OF A SPARK-IGNITION COMBUSTION ENGINE
Submission Author:
Carlos Marcelo Scandura , SP
Co-Authors:
Carlos Marcelo Scandura, Agenor Fleury
Presenter: Agenor Fleury
doi://10.26678/ABCM.COBEM2019.COB2019-0283
Abstract
The energetic efficiency is a priority for worldwide automotive industry. In Brazil, the INOVAR-AUTO and ROTA2030 programs establish vehicular energetic efficiency criteria in order to determine the vehicle taxation, which is pushing OEMs to design more efficient powertrains. For urban applications, the vehicle works most of the time in low speeds and short distances, then the typical engine should be a small displacement aspirated engine. It is fundamental for such machines the optimization of volumetric efficiency at rated speeds. In this work, a 1D simulation model was designed, improved and then correlated to a flex fuel engine. After that, this model was applied as auxiliary tool to simulate the combination of variables from an experiment generated by Response Surface Methodology (RSM), which resulted in a response surface that allowed a better understanding of the interaction between the main parameters and the achievement of an optimal operational point. The obtained results proved that the purpose of this work was achieved.
Keywords
Combustion engine, valve cam, Optimization
