Urea Mixing Turbo Charger and Automobile Exhaust System Thereof

A urea mixing turbo charger (10) applied to a vehicular exhaust system (1) of the present invention includes a turbulator (30) that allows the inflow of exhaust gas firstly induced to swirlingly flow at a turbine outlet wireline angle (A) formed at a turbine outlet (21b) of a turbo charger (20) and...

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Bibliographic Details
Main Author JIN SEOK BEOM
Format Patent
LanguageEnglish
Korean
Published 14.07.2023
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Summary:A urea mixing turbo charger (10) applied to a vehicular exhaust system (1) of the present invention includes a turbulator (30) that allows the inflow of exhaust gas firstly induced to swirlingly flow at a turbine outlet wireline angle (A) formed at a turbine outlet (21b) of a turbo charger (20) and forms second swirling of the exhaust gas to a swirl guide (35) of a flow path in which the exhaust gas flows. Accordingly, the present invention can facilitate urea injection mixing through turbulence flow induction in an exhaust pipe of an SCR front end by swirling induction of a turbine wheel (25) and, in particular, maximize the mixing of the urea and the exhaust gas when injecting the urea through a matching structure of urea incident angle in a pipe with a flow wireline angle of the turbulator to which turbulence flow is induced in the exhaust pipe of the SCR front end. 본 발명의 차량 배기계(1)에 적용된 요소수 믹싱 터보차저(10)는 터보차저(20)의 터빈 출구(21b)에 형성된 터빈 출구 유선 각도(A)로 스월 유동이 1차 유도된 배기가스를 유입하고, 상기 배기가스가 흐르는 유로의 스월 가이드(Swirl Guide)(35)로 상기 배기가스에 2차 스월(Swirl) 유동을 형성하는 터뷸레이터(Turbulator)(30)가 포함됨으로써 터빈휠(25)의 스월(Swirl) 유도에 의한 SCR 전단부의 배기관내 난류 유동 유도로 요소수 분사 믹싱을 용이하게 하고, 특히 SCR 전단부 배기관내 난류 유동이 유도되는 터뷸레이터(Turbulator)의 유동 유선 각도를 배관내의 요소수 입사각과 메칭 구조로 요소수 분무 시 요소수와 배기가스 믹싱을 극대화하는 특징이 구현된다.
Bibliography:Application Number: KR20220002873