A Study on Duct Integrated Resonator of Automobile Intake System

摘要

Automobile's intake system intakes air from outside and supplies it to the engine cylinder. However, due to various reasons throughout the intake system, they cause noises called intake noise. A resonator is mostly used to suppress this intake noise. However, due to its nature, a resonator requires big space in the limited engine room space, and it has limited usage. In this paper, we propose a duct integrated resonator to minimize the space requirement in the engine room, compare its performance with an existing Helmholtz resonator, and analyze the performance when two types of resonators are equipped at the same time. The duct integrated resonator mounted model showed a noise reduction effect by increasing transmission loss to around 2 dB when compared to the existing Helmholtz resonator, and obtained a space reduction effect inside the engine room.