Research of the Engine’s Speed Influence on the Intake Process of a Naturally Aspirated Engine

Abstract

This paper presents the study of the influence of the valve train’s dynamic behavior within the air intake process in the internal combustion engine. The software applications used in this study are Virtual Lab LMS and BOOST AVL. The first software was used for creating the valve train acting system, and the second software for the analysis of the engine intake process. Results show that the pumping work is influenced by the engine speed and the valve curve lift used in the analysis, cinematic or dynamic lift curve.