The Development of Muffler with Controller Sensing Exhaust-gas Pressure in Automotive Exhaust System (II)

This study is focused on the development of a new muffler. A control valve installed in the exhaust system is operated by torsion springs, and its open angle is controlled automatically corresponding to the engine operating conditions. A control valve and a control muffler sensing exhaust-gas pressure are made f3r developing a new muffler. The experiments were done using an exhaust system simulator having the same pulsation wave frequency and similar pulsation propagation characteristics of a real exhaust system. The purpose of this study is to develope a new muffler system which has improved noise reduction quality and less power loss than conventional mufflers and electronic-control mufflers. Finally the characteristic of noise compared with conventional muffler and muffler sensing exhuast-gas pressure.

자동차 배기계의 배기압 감응형 제어 머플러 개발에 관한 연구 (II) - 배기압 감응형 제어 머플러의 소음특성과 스프링 상수 - 최초 열림 압력의 관계 -