KR100534923B1 - exhaust system structure of vehicle - Google Patents

exhaust system structure of vehicle Download PDF

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Publication number
KR100534923B1
KR100534923B1 KR10-2003-0074653A KR20030074653A KR100534923B1 KR 100534923 B1 KR100534923 B1 KR 100534923B1 KR 20030074653 A KR20030074653 A KR 20030074653A KR 100534923 B1 KR100534923 B1 KR 100534923B1
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KR
South Korea
Prior art keywords
catalytic converter
cylinder block
exhaust system
clamp member
exhaust
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KR10-2003-0074653A
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Korean (ko)
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KR20050039224A (en
Inventor
최복록
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현대자동차주식회사
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Priority to KR10-2003-0074653A priority Critical patent/KR100534923B1/en
Publication of KR20050039224A publication Critical patent/KR20050039224A/en
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Publication of KR100534923B1 publication Critical patent/KR100534923B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/18—Exhaust treating devices having provisions not otherwise provided for for improving rigidity, e.g. by wings, ribs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)

Abstract

본 발명은 자동차의 배기계구조에 관한 것으로, 촉매변환기(12)와 마주 대하는 실린더블록(2)에 돌출 형성되는 실린더블록 플랜지(2a)와, 상기 촉매변환기(12)의 외주면을 부분적으로 감싸면서 상기 실린더블록 플랜지(2a)와 복수개의 볼트(31)를 통해 체결되는 클램프부재(40)를 포함하도록 구성되어져, 엔진 작동시 상기 촉매변환기(12)의 상하방향 열팽창은 자유롭게 되고 반대로 전후방향 및 수평방향의 진동에 대해서는 상기 클램프부재(40)에 의해 효과적으로 구속이 가능하게 되어, 상기 촉매변환기(12)의 내구성 및 전체적인 배기계의 수명이 대폭 증대되도록 된 것이다.The present invention relates to an exhaust system structure of an automobile, and partially covers the cylinder block flange (2a) protruding from the cylinder block (2) facing the catalytic converter 12 and the outer circumferential surface of the catalytic converter (12) It is configured to include a clamp member 40 that is fastened through the cylinder block flange (2a) and a plurality of bolts 31, the vertical expansion and expansion of the catalytic converter 12 during the operation of the engine is free, and vice versa and horizontal direction With respect to the vibration of the clamp member 40 can be effectively restrained, so that the durability of the catalytic converter 12 and the life of the entire exhaust system is greatly increased.

Description

자동차의 배기계구조{exhaust system structure of vehicle}Exhaust system structure of vehicle

본 발명은 자동차의 배기계구조에 관한 것으로, 특히 고온의 열피로 인해 균열이 가장 많이 발생하는 촉매변환기를 실린더블록에 지지하도록 구성함으로써 전체적인 강성을 크게 확보할 수 있도록 하는 자동차의 배기계구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust system structure of an automobile, and more particularly, to an exhaust system structure of an automobile, which is capable of largely securing overall rigidity by supporting a catalytic converter, in which a crack occurs most frequently due to high temperature heat escape, on a cylinder block.

일반적인 차량의 배기계는 도 1과 도 2에 도시된 바와 같이 실린더헤드(1)에 볼트 체결되는 배기매니폴드(11)와, 이 배기매니폴드(11)의 하단에 연결되어 배기가스에서 배출되는 CO, HC, NOx등의 유해한 가스를 산화 환원반응을 통하여 무해한 가스로 변환하는 촉매변환기(12;WCC -Warm Up Catalytic Converter)와, 이 촉매변환기(12)와 연결되어 무해한 가스를 대기중으로 방출하는 배기파이프(13)등으로 구성된다.As shown in FIGS. 1 and 2, an exhaust system of a general vehicle includes an exhaust manifold 11 bolted to a cylinder head 1, and a CO connected to a lower end of the exhaust manifold 11 to be discharged from exhaust gas. WCC-Warm Up Catalytic Converter which converts harmful gases such as HC, NOx into harmless gas through redox reaction, and exhaust that is connected to the catalytic converter 12 to release harmless gas into the atmosphere Pipe 13 or the like.

여기서, 상기 배기파이프(13)상에는 엔진과 배기계의 상대운동에 의한 배기계 변형을 감쇄 및 흡수하는 벨로우즈(14;Bellows)가 구비되며, 또한 상기 배기파이프(13)에는 배기소음의 감쇄 및 배기가스의 냉각기능을 수행하는 보조소음기와 주소음기도 함께 구비된다.Here, the exhaust pipe 13 is provided with a bellows (14) Bellows (14) to attenuate and absorb the deformation of the exhaust system due to the relative movement of the engine and the exhaust system, the exhaust pipe 13 is also attenuated exhaust noise and exhaust gas Auxiliary silencers and addressing machines that perform cooling functions are also provided.

그리고, 상기 촉매변환기(12)의 하단에 위치한 배기파이프(13)는 탄성력을 갖춘 지지브라켓트(21)를 통해 실린더블록(2)에 지지되도록 구성된다.In addition, the exhaust pipe 13 located at the lower end of the catalytic converter 12 is configured to be supported by the cylinder block 2 through the support bracket 21 having elastic force.

그러나, 상기와 같이 지지브라켓트(21)를 이용해 배기파이프(13)를 실린더블록(2)에 지지시키는 종래 배기계의 구조는, 엔진 작동시 상대적으로 중량이 큰 촉매변환기(12)의 상하방향 열팽창에 대해서는 비교적 자유로운 조건을 구현시킬 수는 있으나, 전후방향과 수평방향의 진동에 대해서는 거의 구속을 하지 못함으로써 도 3에 도시된 바와 같이 상기 촉매변환기(12)와 배기매니폴드(13)가 연결되는 부위(M) 및 상기 지지브라켓트(21)가 고온의 열피로 인해 균열이 발생되고, 이를 방치할 경우에는 상기의 부위(M)가 파단에 이르게 되어 전체적으로 배기계의 수명을 단축시키는 문제점이 있었다.However, the structure of the conventional exhaust system that supports the exhaust pipe 13 to the cylinder block 2 by using the support bracket 21 as described above is based on the vertical expansion of the catalytic converter 12, which is relatively heavy during engine operation. Although it is possible to implement a relatively free condition with respect to the vibration in the front and rear direction and horizontal direction, as shown in Figure 3 by the catalytic converter 12 and the exhaust manifold 13 is connected to the site (M) and the support bracket 21 is cracked due to the high temperature of the heat escape, if left unattended there is a problem in that the portion (M) leads to breakage shortens the life of the exhaust system as a whole.

이에 본 발명은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 엔진 작동시 상대적으로 중량이 크고 또한 고온의 열피로 인해 균열이 가장 많이 발생하는 촉매변환기를 클램프부재를 이용해 실린더블록에 지지되도록 구성함으로써, 상기 촉매변환기와 배기매니폴드의 연결부위에서 균열이 발생하는 것을 미리 예방할 수 있도록 함은 물론, 결과적으로는 전체적인 내구성을 향상시킴으로써 배기계의 수명을 증대시킬 수 있도록 하는 자동차의 배기계구조를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, by configuring a catalytic converter that is relatively heavy in the operation of the engine and the most frequent cracking occurs due to high temperature heat escape by using a clamp member to support the cylinder block In addition, to provide a vehicle exhaust system structure that can prevent the occurrence of cracks in the connection portion between the catalytic converter and the exhaust manifold in advance, and consequently to improve the overall durability to increase the life of the exhaust system. There is this.

상기와 같은 목적을 달성하기 위한 본 발명의 배기계구조는, 촉매변환기와 마주 대하는 실린더블록에 돌출 형성되는 실린더블록 플랜지와, 상기 촉매변환기의 외주면을 부분적으로 감싸면서 상기 실린더블록 플랜지와 복수개의 볼트를 통해 체결되는 클램프부재를 포함하여 구성되는 한편; 상기 클램프부재는, 횡방향을 따라 띠형상으로 된 다수개의 리브가 서로 이격되면서 적층식으로 형성되고 엔진 작동시 촉매변환기의 상하방향 열팽창에 대해서는 자유롭게 구현되도록 하면서 전후방향 및 수평방향의 진동에 대해서는 구속이 가능하도록 상기 촉매변환기의 외주면을 탄력적으로 가압하면서 감싸는 밴드부와, 상기 밴드부로부터 절곡 형성되면서 각각의 선단은 상기 실린더블록 플랜지와 중첩된 상태에서 볼트를 통해 결합이 이루어지는 복수개의 결합부로 구성된 것을 특징으로 한다.Exhaust system structure of the present invention for achieving the above object, the cylinder block flange protruding from the cylinder block facing the catalytic converter, and the cylinder block flange and a plurality of bolts while partially surrounding the outer peripheral surface of the catalytic converter It is configured to include a clamp member fastened through; The clamp member has a plurality of ribs formed in a strip shape along the transverse direction and is stacked in a stacked manner and restrained against vibration in the front and rear and horizontal directions while freely implementing the vertical expansion of the catalytic converter during engine operation. The band portion surrounding the outer surface of the catalytic converter to elastically press to enable and the bent from the band portion, each end is characterized in that consisting of a plurality of coupling portion is coupled through the bolt in the state overlapping with the cylinder block flange .

이하 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 4는 본 발명에 따른 배기계의 구조를 설명하기 위한 측면도로서, 종래구조와 동일한 부위에는 동일한 참조부호를 붙이면서 설명하기로 한다.Figure 4 is a side view for explaining the structure of the exhaust system according to the present invention, will be described with the same reference numerals to the same parts as the conventional structure.

본 발명에 따른 배기계는 도 3에 도시된 바와 같이, 실린더헤드(1)에 볼트 체결되는 배기매니폴드(11)와, 이 배기매니폴드(11)의 하단에 연결되어 배기가스에서 배출되는 CO, HC, NOx등의 유해한 가스를 산화 환원반응을 통하여 무해한 가스로 변환하는 촉매변환기(12;WCC -Warm Up Catalytic Converter)와, 이 촉매변환기(12)와 연결되어 무해한 가스를 대기중으로 방출하는 배기파이프(13)등으로 구성된다.Exhaust system according to the present invention, as shown in Figure 3, the exhaust manifold 11 is bolted to the cylinder head (1), CO is connected to the lower end of the exhaust manifold 11, the exhaust gas from the exhaust gas, A catalytic converter (WCC-Warm Up Catalytic Converter) for converting harmful gases such as HC and NOx into harmless gases through a redox reaction, and an exhaust pipe connected to the catalytic converter 12 to discharge harmless gases into the atmosphere. (13) and the like.

그리고, 상기 배기파이프(13)상에는 엔진과 배기계의 상대운동에 의한 배기계 변형을 감쇄 및 흡수하는 벨로우즈(14;Bellows)가 구비되며, 또한 상기 배기파이프(13)에는 배기소음의 감쇄 및 배기가스의 냉각기능을 수행하는 보조소음기와 주소음기도 함께 구비된다.In addition, a bellows 14 is provided on the exhaust pipe 13 to attenuate and absorb the deformation of the exhaust system due to the relative movement of the engine and the exhaust system, and the exhaust pipe 13 includes attenuation of exhaust noise and exhaust gas. Auxiliary silencers and addressing machines that perform cooling functions are also provided.

한편, 본 발명에 따른 배기계는 상기 촉매변환기(12)와 마주 대하는 실린더블록(2)에 돌출 형성되는 실린더블록 플랜지(2a) 및, 상기 촉매변환기(12)의 외주면을 부분적으로 감싸면서 상기 실린더블록 플랜지(2a)와 복수개의 볼트(31)를 통해 체결되는 클램프부재(40)를 더 포함하여 구성된다.On the other hand, the exhaust system according to the present invention is a cylinder block flange (2a) protruding and formed in the cylinder block (2) facing the catalytic converter 12, and the cylinder block while partially surrounding the outer peripheral surface of the catalytic converter 12 It further comprises a clamp member 40 is fastened through the flange (2a) and a plurality of bolts (31).

여기서, 상기 클램프부재(40)는 촉매변환기(12)의 외주면을 탄력적으로 가압하면서 감싸는 밴드부(41)와, 이 밴드부(41)로부터 절곡 형성되면서 각각의 선단은 상기 실린더블록 플랜지(2a)와 중첩된 상태에서 볼트(31)를 통해 결합이 이루어지는 복수개의 결합부(43)로 구성된다.Here, the clamp member 40 has a band portion 41 wrapping elastically pressing the outer peripheral surface of the catalytic converter 12, and bent from the band portion 41, each tip overlaps with the cylinder block flange (2a) It is composed of a plurality of engaging portion 43 is coupled through the bolt 31 in the state.

그리고, 상기 밴드부(41)에는 횡방향을 따라 띠형상으로 된 다수개의 리브(41a)가 서로 이격되면서 적층식으로 형성된다.In addition, the band portion 41 is formed in a lamination manner while a plurality of ribs 41a having a band shape are spaced apart from each other in the transverse direction.

상기 밴드부(41)는 엔진 작동시 촉매변환기(12)의 상하방향 열팽창에 대해서 자유로운 조건을 구현시키는 기능을 수행하게 된다.The band part 41 performs a function of realizing a free condition for vertical expansion of the catalytic converter 12 during engine operation.

따라서, 본 발명에 따른 배기계의 구조는 엔진 작동시 상대적으로 중량이 크고 또한 고온의 열피로 인해 균열이 가장 많이 발생하는 촉매변환기(12)가 클램프부재(40)를 통해 실린더블록(2)에 지지되도록 구성됨으로써, 상기 촉매변환기(12)의 강성이 대폭 증대됨은 물론 전체적인 배기계의 수명도 대폭 증대되는 잇점이 있게 된다.Therefore, the structure of the exhaust system according to the present invention is supported by the cylinder block 2 through the clamp member 40, the catalytic converter 12, which is relatively heavy when the engine is operating and the crack occurs most frequently due to the high temperature heat escape. In this configuration, the rigidity of the catalytic converter 12 is greatly increased, and the life of the entire exhaust system is also greatly increased.

또한, 본 발명에 따른 클램프부재(40)를 이용해 중량이 큰 촉매변환기(12)가 직접 실린더블록(2)에 지지되도록 구성되면, 엔진 작동시 상기 촉매변환기(12)의 상하방향 열팽창은 클램프부재(40)의 밴드부(41)에 의해 비교적 자유롭게 구현되게 된다.In addition, when the heavy weight catalytic converter 12 is configured to be directly supported by the cylinder block 2 using the clamp member 40 according to the present invention, the vertical thermal expansion of the catalytic converter 12 during the engine operation is the clamp member. The band portion 41 of 40 is relatively freely implemented.

그리고, 상기 촉매변환기(12)의 전후방향 및 수평방향의 진동에 대해서는 상기 밴드부(41)를 통해 효과적으로 구속이 가능하게 됨으로써, 상기 촉매변환기(12)와 배기매니폴드(13)의 연결부위(M)에서 응력이 집중되는 현상을 예방할 수 있게 되고, 이에 따라 고온의 열피로 인해 상기 배기매니폴드(13)가 파손되는 현상도 예방할 수 있는 잇점이 있게 된다.In addition, the vibration of the catalytic converter 12 in the front-back direction and the horizontal direction can be effectively restrained through the band part 41, so that the connection portion M between the catalytic converter 12 and the exhaust manifold 13 is provided. In this case, it is possible to prevent a phenomenon in which stress is concentrated, and thus there is an advantage of preventing the exhaust manifold 13 from being damaged due to high temperature heat.

이상 설명한 바와 같이 본 발명에 의하면, 촉매변환기가 클램프부재를 통해 실린더블록에 직접 지지되도록 구성됨으로써, 엔진 작동시 상기 촉매변환기는 상하방향의 열팽창이 자유롭게 되고 반대로 전후방향 및 수평방향의 진동에 대해서는 상기 클램프부재에 의해 효과적으로 구속이 가능하게 되므로, 상기 촉매변환기의 내구성과 전체적인 배기계의 수명이 대폭 증대되는 효과가 있게 된다.As described above, according to the present invention, the catalytic converter is configured to be directly supported by the cylinder block through the clamp member, so that the catalytic converter is freely thermally expanded in the vertical direction when the engine is operated. Since the clamp member can be effectively restrained, the durability of the catalytic converter and the life of the entire exhaust system are greatly increased.

도 1과 도 2는 일반적인 차량의 배기계 구성을 설명하기 위한 사시도 및 개략적인 측면도,1 and 2 are a perspective view and a schematic side view for explaining the configuration of the exhaust system of a typical vehicle,

도 3은 종래 배기계의 응력집중부를 보여주기 위한 사시도,3 is a perspective view for showing a stress concentration of the conventional exhaust system,

도 4는 도 2의 대응도로서, 본 발명에 따른 배기계의 구조를 설명하기 위한 측면도,4 is a side view for explaining the structure of the exhaust system according to the present invention, the corresponding figure of FIG.

도 5는 본 발명에 따른 배기계의 구조에서 촉매변환기를 지지하는 클램프부재를 설명하기 위한 분리상태도,Figure 5 is a separate state diagram for explaining the clamp member for supporting the catalytic converter in the structure of the exhaust system according to the present invention,

도 6은 도 5의 Ⅰ-Ⅰ선 부분단면도이다.FIG. 6 is a partial cross-sectional view taken along line II of FIG. 5.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

2 - 실린더블록 2a - 실린더블록 플랜지2-Cylinder Block 2a-Cylinder Block Flange

12 - 촉매변환기 31 - 볼트12-Catalytic Converter 31-Volt

40 - 클램프부재 41 - 밴드부40-Clamp Member 41-Band Section

41a - 리브 43 - 결합부41a-rib 43-coupling

Claims (3)

촉매변환기(12)와 마주 대하는 실린더블록(2)에 돌출 형성되는 실린더블록 플랜지(2a)와, 상기 촉매변환기(12)의 외주면을 부분적으로 감싸면서 상기 실린더블록 플랜지(2a)와 복수개의 볼트(31)를 통해 체결되는 클램프부재(40)를 포함하여 구성되는 한편;The cylinder block flange 2a protruding from the cylinder block 2 facing the catalytic converter 12, and the cylinder block flange 2a and the plurality of bolts while partially covering the outer circumferential surface of the catalytic converter 12; 31 includes a clamp member 40 fastened through; 상기 클램프부재(40)는, 횡방향을 따라 띠형상으로 된 다수개의 리브(41a)가 서로 이격되면서 적층식으로 형성되고 엔진 작동시 촉매변환기(12)의 상하방향 열팽창에 대해서는 자유롭게 구현되도록 하면서 전후방향 및 수평방향의 진동에 대해서는 구속이 가능하도록 상기 촉매변환기(12)의 외주면을 탄력적으로 가압하면서 감싸는 밴드부(41)와, 상기 밴드부(41)로부터 절곡 형성되면서 각각의 선단은 상기 실린더블록 플랜지(2a)와 중첩된 상태에서 볼트(31)를 통해 결합이 이루어지는 복수개의 결합부(43)로 구성된 것을 특징으로 하는 자동차의 배기계구조.The clamp member 40 has a plurality of ribs 41a formed in a band shape along the transverse direction and formed in a stacked manner while being spaced apart from each other. The clamp member 40 may be freely embodied in the vertical direction of the catalytic converter 12 during engine operation. Band portion 41 and elastically pressurizing the outer peripheral surface of the catalytic converter 12 so as to restrain the vibration in the direction and horizontal direction, and bent from the band portion 41, each tip is the cylinder block flange ( Exhaust system structure of a vehicle, characterized in that composed of a plurality of coupling portions 43 are coupled through a bolt 31 in a state overlapped with 2a). 삭제delete 삭제delete
KR10-2003-0074653A 2003-10-24 2003-10-24 exhaust system structure of vehicle KR100534923B1 (en)

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