KR0140344Y1 - Variable exhaust pipe - Google Patents

Variable exhaust pipe Download PDF

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Publication number
KR0140344Y1
KR0140344Y1 KR2019960051235U KR19960051235U KR0140344Y1 KR 0140344 Y1 KR0140344 Y1 KR 0140344Y1 KR 2019960051235 U KR2019960051235 U KR 2019960051235U KR 19960051235 U KR19960051235 U KR 19960051235U KR 0140344 Y1 KR0140344 Y1 KR 0140344Y1
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KR
South Korea
Prior art keywords
pipe
inner pipe
bellows
outer pipe
exhaust
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KR2019960051235U
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Korean (ko)
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KR19980038174U (en
Inventor
김태정
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박병재
현대자동차주식회사
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Priority to KR2019960051235U priority Critical patent/KR0140344Y1/en
Publication of KR19980038174U publication Critical patent/KR19980038174U/en
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Publication of KR0140344Y1 publication Critical patent/KR0140344Y1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811Fixing 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
    • F01N13/1816Fixing 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 the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2304/00Optimising design; Manufacturing; Testing
    • B60Y2304/05Reducing production costs, e.g. by redesign
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00Structure or shape of gas passages, pipes or tubes
    • F01N2470/12Tubes being corrugated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2530/00Selection of materials for tubes, chambers or housings
    • F01N2530/22Flexible elastomeric material

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

본 고안은 자동차용 충격흡수식 배기파이프에 관한 것으로, 걸림턱(la)에 형성되도록 일측 끝단이 절곡된 내측파이프(1), 고정턱(2a)이 형성되도록 일측 끝단이 절곡되어 상기 내측파이프(1)와 결합되도록 된 외측파이프(2), 상기 걸림턱(la)과 고정턱(2a)사이에 배치된 충격흡수부재(3), 상기 고정턱(2a)의 외부에 배치된 지지부재(4), 상기 내측파이프(1)와 외측파이프(2)를 도포하도록 된 벨로즈(5)로 이루어져, 상기 내측파이프(1)를 양단시키지 않고 일측 끝단만을 절곡시킴으로써 작업성을 향상될 뿐만 아니라 충격흡수부재(3)와 지지부재(4) 사이에 외측파이프(2)가 단순히 끼워져 고정됨과 더불어 벨로즈(5)의 길이가 필요에 따라 가변적으로 변화되어 도포됨으로써 제조단가가 절감되도록 된 것이다.The present invention relates to a shock-absorbing exhaust pipe for automobiles, one end is bent to form an inner pipe (1), one fixed end (2a) is bent to form a locking jaw (la) the inner pipe (1) The outer pipe (2) to be coupled to, the shock absorbing member (3) disposed between the locking jaw (la) and the fixing jaw (2a), the support member (4) disposed outside the fixing jaw (2a) And, the inner pipe (1) and the bellows (5) to apply the outer pipe (2), by bending only one end of the inner pipe (1) without both ends to improve the workability as well as the shock absorbing member The outer pipe (2) is simply fitted and fixed between the (3) and the support member (4) and the length of the bellows (5) is variably applied as necessary to reduce the manufacturing cost.

Description

자동차용 충격흡수식 배기파이프Shock Absorption Exhaust Pipe for Automobile

본 고안은 자동차용 충격흡수식 배기파이프에 관한 것으로, 특히 내측파이프와 외측파이프의 조립구조가 단순화됨과 더불어 벨로즈의 길이가 가변적으로 조절됨으로써 작업자의 작업성이 향상됨은 물론, 부품수를 절감할 수 있도록 된 자동차용 충격흡수식 배기파이프에 관한 것이다.The present invention relates to a shock-absorbing exhaust pipe for automobiles, in particular, the assembly structure of the inner pipe and the outer pipe is simplified and the length of the bellows is variably adjusted, thereby improving the workability of the operator and reducing the number of parts. The present invention relates to an automobile shock absorbing exhaust pipe.

일반적으로 실린더안에 혼합기를 흡입하고, 또 혼합기를 연소한 후 그 연소가스를 배출하는 역할을 하도록 된 흡배기장치중 배기장지(Exhaust System)는 도1에 도시된 바와 같이, 각 실린더의 연소가스를 모으도록 된 배기매니폴드(100)와, 이 이 배기매니폴드(100)에 포집된 연소가스를 대기로 방출시키기 위한 배기파이프(200)와, 이 배기파이프(200)내의 배기가스 온도와 압력을 저하시켜 급격한 팽창과 폭음을 억제하도록 된 보조소음기(300) 및 소음기(400)등으로 이루어져 있다.In general, the exhaust system of the intake / exhaust system, which sucks the mixer in the cylinder and discharges the combustion gas after burning the mixer, collects the combustion gas of each cylinder, as shown in FIG. Exhaust manifold 100, exhaust pipe 200 for releasing combustion gas trapped in the exhaust manifold 100 into the atmosphere, and exhaust gas temperature and pressure in the exhaust pipe 200 are lowered. It consists of an auxiliary silencer 300 and the silencer 400 to suppress rapid expansion and explosion.

여기서, 상기 배기파이프(200)는 주행중 차제로 부터 전달되는 충격하중이나 배기가스의 폭발에 의해 발생되는 충격하중을 효과적으로 흡수하도록 되어 있는 바, 그 구조는 도2에 도시된 바와 같이, 소정부위가 좌우측으로 양단되어 개구홀(22)을 형성함과 더불어 양단된 끝부위가 외측으로 절곡되어 걸림턱(21a)이 형성되도록 된 내측파이프(21), 양끝단이 절곡되어 고정턱(23a)을 형성함과 더불어 상기 내측파이프(21)의 개구홀(22)이 덮여지도록 중아부위가 레이저용접(K)으로 고정된 외측파이프(23), 상기 걸림턱(21a)과 고정턱(23a)사이에 배치되어 내측파이프(21)와 외측파이프(23)의 기밀을 유지함과 더불어 충격하중을 효과적으로 흡수하도록 된 충격흡수부재(24) 및, 상기 내측파이프(21)의 외주면에 외측파이프(23)가 완전히 도포되도록 부착되어 배기가스의 누츨을 방지함과 더불어 상기 내측파이프(21)의 절곡시 탄성력을 향상시켜주도록 된 벨로즈(25)로 이루어져 있다.Here, the exhaust pipe 200 is configured to effectively absorb the impact load transmitted from the vehicle while driving or the impact load caused by the explosion of the exhaust gas, the structure is a predetermined portion as shown in FIG. Both ends are formed at the left and right sides to form the opening hole 22, and both ends are bent to the outside to form the locking jaw 21a, and both ends are bent to form the fixing jaw 23a. In addition, the middle pipe portion is fixed between the outer pipe 23 and the locking jaw 21a and the fixing jaw 23a where the middle middle part is fixed by laser welding K so that the opening hole 22 of the inner pipe 21 is covered. The outer pipe 23 is completely applied to the shock absorbing member 24 and the outer circumferential surface of the inner pipe 21 to maintain the airtightness of the inner pipe 21 and the outer pipe 23 and to effectively absorb the impact load. Attached to the exhaust gas In addition to also prevent Chlef consists of a bellows 25 is improved to give an elastic force to the bending of the inner pipe 21.

따라서 내측파이프(21)가 차체의 진동이나 혼합기의 폭발력에 의해 충격흡수부재(24)를 매개로 외측파이프(23)와의 기밀을 유지하면서 요동됨과 더불어 벨로즈(25)도 상기 내측파이프(21)와 동일한 방향으로 인장/압축되되, 배기가스는 이러한 운동을 하는 배기파이프를 통해 대기로 방출되게 된다.Accordingly, the inner pipe 21 is oscillated while maintaining the airtightness with the outer pipe 23 through the shock absorbing member 24 due to the vibration of the vehicle body or the explosive force of the mixer, and the bellows 25 is also the inner pipe 21. It is stretched / compressed in the same direction as, but exhaust gas is discharged to the atmosphere through the exhaust pipe making this movement.

그러나 이와 같은 구조로 된 종래의 충격흡수식 배기파이프는, 개구홀(22)이 형성되도록 내측파이프(21)의 소정부위를 양단함과 더불어 걸림턱(21A)이 형성되도록 양끝단을 절곡시켜야 하므로 작업자의 작업성이 저하될 뿐만 아니라 외측파이프(23)를 고정시키기 위해 레이저용접을 실시함과 더불어 내 외측파이프(21,23)의 전체에 걸쳐 벨로즈(25)를 도포함으로 인해 제조단가가 상승되어 상품성이 저하되는 문제점이 있었다.However, in the conventional shock-absorbing type exhaust pipe having such a structure, both ends of the predetermined portion of the inner pipe 21 must be bent so that the opening hole 22 is formed, and both ends must be bent to form the latching jaw 21A. In addition to the deterioration of workability, the manufacturing cost is increased due to laser welding to fix the outer pipe 23 and the application of the bellows 25 over the entire inner pipes 21 and 23. There was a problem that the merchandise is lowered.

이에 본 고안은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 내측파이프를 양단시키지 않고 일측 끝단만을 절곡시킴으로써 작업성을 향상시킬 뿐만 아니라 충격흡수부재와 지지부재사이에 외측파이프를 단순히 끼워 고정시킴과 더불어 벨로즈의 길이를 필요에 따라 가변적으로 변화하여 도포시킴으로써 제조단가를 절감시킬 수 있도록 자동차용 충격흡수식 배기파이프를 제공함에 그 목적이 있다.The present invention has been devised to solve the above problems, and by improving the workability by bending only one end without bending the inner pipe, it is also possible to simply fix the outer pipe between the shock absorbing member and the support member. In addition, it is an object of the present invention to provide a shock-absorbing exhaust pipe for automobiles to reduce the manufacturing cost by varying the length of the bellows as needed to apply.

도1은 일반적인 배기장치를 도시한 사시도,1 is a perspective view showing a general exhaust device;

도2는 종래의 충격흡수구조를 나타내는 배기파이프의 개략적인 단면도,2 is a schematic cross-sectional view of an exhaust pipe showing a conventional shock absorbing structure;

도3은 본 고안에 따른 충격흡수구조로서, 도2에 대응되는 단면도3 is a shock absorption structure according to the present invention, a cross-sectional view corresponding to FIG.

도4는 도3의 작동상태도이다.4 is an operating state diagram of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 내측파이프 la : 걸림턱1: inner pipe la: locking jaw

2 : 외측파이프 2a : 고정턱2: outer pipe 2a: fixing jaw

3 : 충격흡수부재 4 : 지지부재3: shock absorbing member 4: support member

5 : 벨로즈(Bellow) K : 레이저용접부5: Bellows K: Laser Welding

상기와 같은 목적을 달성하기 위한 본 고안은, 걸림턱이 형성되도록 일측 끝단이 절곡된 내측파이프, 고정턱이 형성되도록 일측 끝단이 절곡되어 상기 내측파이프와 결합되도록 된 외측파이프, 상기 걸림턱과 고정턱사이에 배치된 충격흡수부재, 상기 고정턱의 외부에 배치된 지지부재, 상기 내측파이프와 외측파이프를 도포하도록 된 벨로즈로 이루어져 있다.The present invention for achieving the above object, the inner pipe bent at one end to form the locking step, the outer pipe is bent at one end to form the fixing jaw to be coupled to the inner pipe, the locking jaw and fixed The shock absorbing member disposed between the jaws, the support member disposed outside the fixing jaw, and the bellows to apply the inner pipe and the outer pipe.

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

도3은 본 고안에 따른 충격흡수구조를 나타내는 배기파이프의 단면도로서, 본 고안은, 내측파이프와 외측파이프 및 이 내 외측파이프를 도포하도록 된 벨로즈로 이루어져 배기가스가 통과되도록 된 자동차용 배기파이프에 있어서, 상기 배기파이프가, 일측 끝부가 외측으로 절곡되어 걸림턱(la)이 형성되도록 된 내측파이프(1), 상기 걸림턱(la)과 상호 작동되도록 일측 끝단이 절곡된 고정턱(2a)이 형성됨과 더불어 상기 내측파이프(1)와 연통되도록 배치된 외측파이프(2), 상기 걸림턱(la)과 고정턱(2a)사이에 배치되어 내측파이프(1)와 외측파이프(1)의 기밀을 유지하도록 된 충격흡수부재(3), 상기 내측파이프(1)의 외주면에 충격흡수부재(3)와 소정의 간격을 두고 배치되어 외측파이프(2)의 고정턱(2a)을 고정시키도록 된 지지부재(4) 및, 상기 내측파이프(1)와 외측파이프(2)의 소정부위만 도포되도록 가변적으로 부착되어 배기가스의 누출을 방지함과 더불어 상기 내측파이프(1)의 절곡시 탄성력을 향상시켜주도록 된 벨로즈(5)로 이루어져 있다.Figure 3 is a cross-sectional view of the exhaust pipe showing the shock-absorbing structure according to the present invention, the present invention is composed of a bellows to apply the inner pipe and the outer pipe and the outer pipe therein exhaust pipe for automobiles through which the exhaust gas is passed. In the exhaust pipe, one end is bent to the outside of the inner pipe (1) is formed so that the locking jaw (la), the fixing jaw (2a) is bent at one end so as to work with the locking jaw (la) In addition to this formed, the outer pipe (2) disposed so as to communicate with the inner pipe (1), disposed between the locking jaw (la) and the fixing jaw (2a) is an airtight of the inner pipe (1) and the outer pipe (1) The shock absorbing member (3), which is to be maintained at a predetermined distance from the shock absorbing member (3) on the outer circumferential surface of the inner pipe (1) to fix the fixing jaw (2a) of the outer pipe (2) The support member 4 and the inner pipe 1 Side is attached to the variable to be applied to only a predetermined portion of the pipe (2) consists of a bellows, with also prevent leakage give an improved elasticity when bent of the inner pipe (1) of the exhaust gas (5).

따라서, 내측파이프(1)의 걸림턱(la)에 충격흡수부재(3)을 부착시킴과 더불어 이 충격흡수부재(3)와 소정의 간격을 두고 지지부재(4)를 부착시키고, 외측파이프(2)의 고정턱(2a)을 상기 충격흡수부재(3)와 지지부재(4)사이에 끼워맞춤식으로 삽입하여 고정시킨 후, 상기 내측파이프(2)중 배기가스의 폭음에 의해 연동되는 부위에만 벨로즈(5)가 도포되므로 작업자의 작업성 및 제조단가가 절감되게 된다.Therefore, the shock absorbing member 3 is attached to the locking jaw la of the inner pipe 1, and the support member 4 is attached to the shock absorbing member 3 at a predetermined interval, and the outer pipe ( 2) of the fixing jaw 2a is fit between the shock absorbing member 3 and the supporting member 4 to be fixed, and then only the portion of the inner pipe 2 interlocked with the exhaust gas is exhausted. Since the bellows 5 is applied, the workability and manufacturing cost of the worker are reduced.

이러한 구조로 된 본 고안의 충격흡수식 배기파이프가 차체의 진동이나 혼합기의 폭발력에 의해 도4에 도시된 바와 같이, 내측파이프(1)가 충격흡수부재(3)를 매개로 요동되어도 외측파이프(2)의 고정턱(2a)이 상기 충격흡수부재(3)와 지지부재(4) 사이에 끼워져 단단히 고정되므로 배기가스의 누출을 방지할 수 있음은 물론, 벨로즈(5)도 상기 내측파이프(1)의 요동방향과 동일한 방향으로 더욱 짧은 변위로 인장되어져 내측파이프(1)의 복귀시 탄성복원력이 증진되게 된다.As shown in FIG. 4, the shock absorbing exhaust pipe of the present invention having such a structure is caused by the vibration of the vehicle body or the explosive force of the mixer, even if the inner pipe 1 swings through the shock absorbing member 3. The fixed jaw (2a) of the () is sandwiched between the shock absorbing member 3 and the support member 4 is firmly fixed to prevent leakage of the exhaust gas, as well as the bellows (5) the inner pipe (1) Tension in a shorter displacement in the same direction as the swinging direction of c) to enhance the elastic restoring force upon return of the inner pipe 1.

또한, 상기 벨로즈(5)는 내측파이프(1)와 외측파이프(2)가 완전히 밀폐되도록 도포되는 것이 아니라 상기 내측파이프(1)와 외측파이프(2)의 연동부위만을 기준으로 도포됨으로 벨로즈(5)의 길이를 유동적으로 변화시킬 수 있게 된다.In addition, the bellows 5 is not applied so that the inner pipe 1 and the outer pipe 2 are completely sealed, and only the interlocking portions of the inner pipe 1 and the outer pipe 2 are applied based on the bellows. The length of (5) can be changed in a fluid manner.

이상 설명한 바와 같이 본 고안에 의하면, 걸림턱이 형성되도록 일측 끝단이 절곡된 내측파이프, 고정턱이 형성되도록 일측 끝단이 절곡되어 상기 내측파이프와 결합되도록 된 외측파이프, 상기 걸림턱과 고정턱사이에 배치된 충격흡수부재, 상기 고정턱의 외부에 배치된 지지부재, 상기 내측파이프와 외측파이프를 도포하도록 된 벨로즈로 이루어져, 상기 내측파이프를 양단시키지 않고 일측 끝단만을 절곡시킴으로써 작업성을 향상될 뿐만 아니라 충격흡수부재와 지지부재사이에 외측파이프가 단순히 끼워져 고정됨과 더불어 벨로즈의 길이가 필요에 따라 가변적으로 변화되어 도포됨으로써 제조단가가 절감되는 효과가 있다.As described above, according to the present invention, an inner pipe bent at one end to form a locking step, an outer pipe bent at one end to form a fixing step, and coupled to the inner pipe, between the locking step and the fixing step. It consists of a shock absorbing member disposed, a support member disposed outside the fixing jaw, and a bellows to apply the inner pipe and the outer pipe, thereby improving workability by bending only one end without both ends of the inner pipe. In addition, the outer pipe is simply inserted and fixed between the shock absorbing member and the supporting member, and the length of the bellows is variably applied as necessary, thereby reducing the manufacturing cost.

Claims (1)

내측파이프와 외측파이프 및 상기 내 외측파이프를 도포하도록 된 벨로즈로 이루어져 배기가스가 통과되도록 된 자동차용 배기파이프에 있어서, 일측 끝부가 외측으로 절곡되어 걸림턱(la)이 형성되도록 된 내측파이프(1), 상기 걸림턱(la)과 상호 작동되도록 일측 끝단이 절곡된 고정턱(2a)이 형성됨과 더불어 상기 내측파이프(1)와 연통되도록 배치된 외측파이프(2), 상기 걸림턱(la)과 고정턱(2a)사이에 배치되어 내측파이프(1)와 외측파이프(1)의 기밀을 유지하도록 된 충격흡수부재(3), 상기 내측파이프(1)의 외주면에 충격흡수부재(3)와 소정의 간격으로 배치되어 외측파이프(2)의 고정턱(2a)을 고정시키도록 된 지지부재(4) 및, 상기 내측파이프(1)와 외측파이프(2)의 소정부위만 도포되도록 가변적으로 부착되어 배기가스의 누출을 방지함과 더불어 상기 내측파이프(1)의 절곡시 탄성력을 향상시켜주도록 된 벨로즈(5)로 이루어진 것을 특징으로 하는 자동차용 충격흡수식 배기파이프.In the exhaust pipe for automobiles consisting of an inner pipe, an outer pipe and a bellows to apply the inner outer pipe, the exhaust pipe passes through the inner pipe, the inner pipe of which one end is bent outward to form a latching ja (la) ( 1), the fixing jaw (2a) is bent at one end to be formed so as to interact with the locking jaw (la) and the outer pipe (2) arranged to communicate with the inner pipe (1), the locking jaw (la) And a shock absorbing member 3 disposed between the fixing jaw 2a to maintain the airtightness of the inner pipe 1 and the outer pipe 1, and the shock absorbing member 3 on the outer circumferential surface of the inner pipe 1. The support member 4 is arranged at predetermined intervals to fix the fixing jaw 2a of the outer pipe 2, and is variably attached so that only predetermined portions of the inner pipe 1 and the outer pipe 2 are applied. The inner side of the exhaust gas to prevent leakage Impact-absorbing exhaust pipe for cars, characterized in that made of a bellows (5) to improve the elastic force when bending the pipe (1).
KR2019960051235U 1996-12-19 1996-12-19 Variable exhaust pipe KR0140344Y1 (en)

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KR0140344Y1 true KR0140344Y1 (en) 1999-03-20

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