KR20090064195A - Exhaust pipe structure of engine - Google Patents

Exhaust pipe structure of engine Download PDF

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Publication number
KR20090064195A
KR20090064195A KR1020070131776A KR20070131776A KR20090064195A KR 20090064195 A KR20090064195 A KR 20090064195A KR 1020070131776 A KR1020070131776 A KR 1020070131776A KR 20070131776 A KR20070131776 A KR 20070131776A KR 20090064195 A KR20090064195 A KR 20090064195A
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South Korea
Prior art keywords
pipe
exhaust pipe
engine
partition wall
exhaust
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KR1020070131776A
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Korean (ko)
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KR100946494B1 (en
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한학손
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현대자동차주식회사
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    • 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
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
    • F16L9/19—Multi-channel pipes or pipe assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/22—Pipes composed of a plurality of segments
    • 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
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing

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

Abstract

An exhaust pipe structure of an engine is provided to maximize the effect of low/middle torque improvement by forming a partition wall structure capable of dividing an exhaust pipe into two strands completely, to have relatively excellent assembling efficiency by being less sensitive to welding deformation or assembling and machining errors, and to improve durability. An exhaust pipe of an engine comprises an upper plate pipe(1), a lower plate pipe(5) coupled to the upper plate pipe to form an exhaust pipe(3), a partition wall(7) having the top coupled to the inside of the upper plate pipe and the bottom adhered closely to the inside of the lower plate pipe, and a welding hole(9) formed correspondingly to the lower plate pipe where the partition wall is adhered closely.

Description

엔진의 배기파이프 구조{Exhaust Pipe Structure of Engine} Exhaust Pipe Structure of Engine

본 발명은 엔진의 배기파이프 구조에 관한 것으로서, 보다 상세하게는 엔진의 성능을 향상시킬 수 있도록 하는 배기파이프의 조립구조에 관한 기술이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust pipe structure of an engine, and more particularly, to a technology related to an assembly structure of an exhaust pipe for improving engine performance.

일반적으로 엔진 배기장치는 배기다기관 및 배기파이프, 촉매, 소음기 등으로 구성되어 있으며, 최근 엔진의 저/중속 영역에서의 토크를 증대 시키기 위해서 4??2??1 시스템이 개발 중에 있다.In general, an engine exhaust system is composed of an exhaust manifold, an exhaust pipe, a catalyst, and a silencer. A 4 ?? 2 ?? 1 system is being developed to increase torque in a low / medium speed region of an engine.

상기 4??2??1시스템은 도 1에 도시된 바와 같이 배기다기관(500) 4가닥, 전방측 배기파이프(502) 2가닥, 후방측 배기파이프(504) 1가닥의 순차적 연결 구조를 말하는 것으로서, 엔진 실린더의 연소 순서에 따라 상기 배기다기관(500)에서 1??2??4??3번 순서로 배기가스가 배출될 때 인접한 배기 유동이 서로 간섭을 일으키지 않도록 배기관을 분리하면 배기가스 유동에 의한 배기간섭 효과를 배제하여 엔진의 성능 향상, 특히 저중속 토크의 향상을 가져올 수 있기 때문이다.As shown in FIG. 1, the 4 ?? 2 ?? 1 system refers to a sequential connection structure of four exhaust manifolds 500, two front exhaust pipes 502, and one rear exhaust pipe 504. When the exhaust gas is discharged from the exhaust manifold 500 in the order of 1 ?? 2 ?? 4 ?? 3 according to the combustion sequence of the engine cylinder, the exhaust pipe is separated so that adjacent exhaust flows do not interfere with each other. This is because the engine performance can be improved by eliminating the effect of doubling due to the flow, especially the low medium speed torque.

상기와 같은 배기 시스템 구현을 위한 종래의 전방측 배기파이프(502)의 2가닥 구조는 도 2에 도시된 바와 같은 조립구조를 가지고 있다.The two-strand structure of the conventional front side exhaust pipe 502 for implementing such an exhaust system has an assembly structure as shown in FIG.

즉, 제작성의 문제 때문에 전방측 배기파이프(502)를 둘로 쪼개어 각각 상판 파이프(506)에 상판격벽(508)을 용접하고 하판파이프(510)에는 하판격벽(512)을 용접한 후에, 상기 상판파이프(506)와 하판파이프(510)를 서로 용접 결합하여 전방측 배기파이프(502)를 2가닥으로 형성하는 것이다.That is, for the sake of manufacturability, after splitting the front exhaust pipe 502 into two, the upper plate bulkhead 508 is welded to the upper plate pipe 506, and the lower plate bulkhead 512 is welded to the lower plate pipe 510, respectively. The pipe 506 and the lower plate pipe 510 are welded to each other to form the front exhaust pipe 502 in two strands.

그런데, 상기한 바와 같은 배기파이프(502)는 도 3에 도시된 단면도와 같이, 상기 배기파이프(502)의 내부를 분리하는 격벽의 중앙이 완전 분리되어 있지 않고 약간의 틈새가 존재하게 된다.However, the exhaust pipe 502 as described above, as shown in the cross-sectional view shown in Figure 3, the center of the partition wall separating the inside of the exhaust pipe 502 is not completely separated and there is a slight gap.

상기와 같이 격벽이 배기파이프(502)의 양쪽 가닥을 완전히 분리하지 못하면, 본래 격벽이 목적했던 배기가스 유동의 상호 간섭 회피 작용이 불완전하게 이루어져서 엔진의 저/중속 토크 향상의 효과가 줄어들게 되는 문제점이 있다.As described above, when the partition wall does not completely separate both strands of the exhaust pipe 502, the mutual interference avoiding action of the exhaust gas flow originally intended by the partition wall is incomplete, thereby reducing the effect of improving the low / medium speed torque of the engine. have.

또한, 상기 상판격벽(508) 및 하판격벽(512)은 한 쪽 단만 상기 상판파이프(506) 및 하판파이프(510)에 각각 용접되는 구조이므로 고속의 배기가스에 대하여 내구성 확보에 불리하고, 상기와 같은 구조는 용접에 의한 변형이나 조립 및 가공오차에 따라 상기 상판격벽(508) 및 하판격벽(512) 사이의 틈새가 불균일해지거나 서로 간섭이 발생하는 등의 불량이 많이 발생하는 문제점이 있다.In addition, the upper partition bulkhead 508 and the lower partition bulkhead 512 are welded to the upper pipe 506 and the lower pipe 510, respectively, and only one end thereof is disadvantageous in securing durability against high-speed exhaust gas. The same structure has a problem in that defects such as unevenness or interference between the upper partition bulkhead 508 and the lower partition bulkhead 512 are caused by deformation or assembly and processing errors due to welding.

본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 배기파이프를 양쪽 가닥으로 완전히 분리할 수 있는 격벽구조를 형성하여 엔진의 저/중속 토크 향상의 효과를 극대화하고, 용접에 의한 변형이나 조립 및 가공오차에 덜 민감하여 조립 작업성이 상대적으로 우수하고, 내구성이 향상되도록 한 엔진의 배기파이프 구조를 제공함에 그 목적이 있다.The present invention has been made in order to solve the above problems, to form a partition structure capable of completely separating the exhaust pipe into both strands to maximize the effect of improving the low / medium speed torque of the engine, deformation by welding or It is an object of the present invention to provide an exhaust pipe structure of an engine that is less sensitive to assembly and processing errors so that assembly workability is relatively excellent and durability is improved.

상기한 바와 같은 목적을 달성하기 위한 본 발명 엔진의 배기파이프 구조는Exhaust pipe structure of the engine of the present invention for achieving the above object is

상판파이프와;Top pipe;

상기 상판파이프에 결합되어 배기파이프를 구성하는 하판파이프와;A lower pipe coupled to the upper pipe to form an exhaust pipe;

상기 상판파이프의 내측에 상단이 결합되고 하단이 상기 하판파이프의 내측면에 밀착되는 격벽과;An upper end coupled to the inner side of the upper pipe and a lower end of the partition wall in close contact with the inner surface of the lower pipe;

상기 하판파이프에 상기 격벽이 밀착하는 부위에 맞추어 형성된 용접구멍;A welding hole formed in accordance with a portion where the partition wall is in close contact with the lower pipe;

을 포함하여 구성된 것을 특징으로 한다.Characterized in that configured to include.

상기 격벽의 상기 하판파이프에 밀착되는 하단은 일측으로 절곡되어 상기 하판파이프의 내측면에 면접촉하는 절곡부를 구비하고;A lower end in close contact with the lower plate pipe of the partition wall is bent to one side and provided with a bent portion in surface contact with an inner surface of the lower plate pipe;

상기 하판파이프의 용접구멍은 상기 절곡부에 의해 막히는 크기로 형성된 구조로 할 수 있다.The welding hole of the lower plate pipe may have a structure formed to a size that is blocked by the bent portion.

상기 하판파이프에는 상기 격벽의 하단이 안착될 수 있도록, 상기 절곡부의 윤곽에 따라 안착홈이 형성된 구조로 할 수 있다.The lower pipe may have a structure in which a mounting groove is formed according to the contour of the bent portion so that the lower end of the partition wall may be seated.

상기 격벽에는 기류소음을 저감하기 위한 다수의 연통공이 일부분에 모여서 천공된 구조로 할 수 있다.The partition wall may have a structure in which a plurality of communication holes for reducing airflow noise are perforated by gathering a portion thereof.

본 발명은 배기파이프를 양쪽 가닥으로 완전히 분리할 수 있는 격벽구조를 형성하여 엔진의 저/중속 토크 향상의 효과를 극대화하고, 용접에 의한 변형이나 조립 및 가공오차에 덜 민감하여 조립 작업성이 상대적으로 우수하고, 내구성이 향상되도록 한다.The present invention maximizes the effect of improving the low / medium speed torque of the engine by forming a partition structure capable of completely separating the exhaust pipe into both strands, and is less susceptible to welding deformation, assembly, and processing errors, thereby providing relatively high assembly workability. Excellent and durability is improved.

도 4 내지 도 6을 참조하면, 본 발명 실시예는 상판파이프(1)와; 상기 상판파이프(1)에 결합되어 배기파이프(3)를 구성하는 하판파이프(5)와; 상기 상판파이프(1)의 내측에 상단이 결합되고 하단이 상기 하판파이프(5)의 내측면에 밀착되는 격벽(7)과; 상기 하판파이프(5)에 상기 격벽(7)이 밀착하는 부위에 맞추어 형성된 용접구멍(9)을 포함하여 구성된다.4 to 6, the embodiment of the present invention and the upper pipe (1); A lower pipe (5) coupled to the upper pipe (1) to constitute an exhaust pipe (3); A partition 7 having an upper end coupled to the inner side of the upper pipe 1 and having a lower end closely contacted with an inner surface of the lower pipe 5; The lower plate pipe 5 is configured to include a welding hole 9 formed in accordance with a portion where the partition wall 7 is in close contact.

즉, 종래와 달리 상기 배기파이프(3)를 두 가닥으로 나누는 것은 하나의 격벽(7)으로 이루어지도록 하여 종래의 문제점을 개선하도록 한 것이다.That is, unlike the prior art, dividing the exhaust pipe 3 into two strands is to make one partition 7 to improve the conventional problem.

상기 상판파이프(1)와 격벽(7) 사이는 용접에 의해 결합하며, 상기 격벽(7) 의 하단은 일측으로 절곡되어 상기 하판파이프(5)의 내측면에 면접촉하는 절곡부(11)를 구비하고, 상기 하판파이프(5)의 용접구멍(9)은 상기 절곡부(11)에 의해 막히는 크기로 형성된 구조이다.The upper pipe 1 and the partition wall 7 are joined by welding, and a lower end of the partition wall 7 is bent to one side to form a bent portion 11 in surface contact with the inner surface of the lower pipe 5. The welding hole 9 of the lower pipe 5 is formed to have a size that is blocked by the bent portion 11.

따라서, 상기 격벽(7)과 하판파이프(5)의 용접은 상기 하판파이프(5)의 외측에서 상기 용접구멍(9)을 통하여 이루어지게 되고, 이러한 용접작업은 용이하게 이루어지므로, 종래 제작상의 곤란에 의해 격벽(7)을 둘로 나누어야 했던 근본적인 조립성의 문제를 함께 해결하게 된 것이다.Therefore, welding of the partition wall 7 and the lower plate pipe 5 is made through the welding hole 9 on the outside of the lower plate pipe 5, and this welding operation is easily performed, so that it is difficult in the conventional manufacturing process. By the bulkhead (7) was to solve the problem of the fundamental assemblability that had to be divided into two.

물론, 상기 용접구멍(9)은 도시된 바와 같이 배기파이프(3)의 길이방향을 따라 길게 형성된 다수의 장공으로 형성되는 것이 바람직할 것이다.Of course, the welding hole 9 is preferably formed of a plurality of long holes formed along the longitudinal direction of the exhaust pipe (3).

도 4나 도 5에서 확인할 수 있듯이 상기 하판파이프(5)에 상기 격벽(7)의 하단이 안착될 수 있도록 상기 절곡부(11)의 윤곽에 따라 안착홈(13)을 프레스가공 등으로 형성하면, 상기 격벽(7)을 상기 하판파이프(5)에 손쉽게 위치 결정하여 조립 작업성을 향상시킬 수 있다.As shown in FIG. 4 and FIG. 5, when the seating groove 13 is formed by press working or the like according to the contour of the bent portion 11 so that the lower end of the partition wall 7 is seated on the lower pipe 5. In addition, the partition 7 may be easily positioned on the lower pipe 5 to improve assembly workability.

비록, 도 4나 도 5에서는 상기 안착홈(13)의 외측만 표현되어 하판파이프의 외부 표면으로 돌출된 상태가 표시되고 이를 13으로 표시하고 있지만, 그에 상응하는 실제의 안착홈은 그 내측에 형성되어 있음을 당연히 알 수 있다.Although only the outer side of the seating groove 13 is represented in FIG. 4 or FIG. 5, the state protruding to the outer surface of the lower pipe is indicated and indicated by 13, but the corresponding seating groove is formed on the inner side thereof. Of course it can be seen that.

상기 격벽(7)에는 기류소음을 저감하기 위한 다수의 연통공(15)이 일부분에 모여서 천공된 구조이다.The partition 7 has a structure in which a plurality of communication holes 15 are gathered in a portion to reduce airflow noise.

상기한 바와 같은 본 발명의 배기파이프(3) 구조는 상기한 바와 같이 상판파이프(1)와 하판파이프(5) 사이를 가로지르는 단일몸체의 격벽(7)에 의해 배기파이 프(3)를 양쪽 가닥으로 완전히 분리할 수 있는 격벽(7) 구조를 형성하여 엔진의 저/중속 토크 향상의 효과를 극대화할 수 있다.As described above, the exhaust pipe 3 of the present invention has a structure in which both exhaust pipes 3 are formed by a single body partition wall 7 that intersects between the upper and lower pipes 1 and 5. It is possible to maximize the effect of improving the low / medium speed torque of the engine by forming a partition (7) structure that can be completely separated into strands.

또한, 상기와 같이 하나의 격벽(7)을 하판파이프(5)에 형성된 용접구멍(9)을 통하여 외부에서 용접할 수 있으므로, 용접에 의한 변형이나 조립 및 가공오차에 덜 민감하여 조립 작업성이 상대적으로 우수하다.In addition, since one partition wall 7 can be welded from the outside through the welding hole 9 formed in the lower plate pipe 5 as described above, the assembly workability is less susceptible to deformation, assembly and processing error caused by welding. Relatively good.

또한, 상기 격벽(7)은 결국 상판파이프(1)와 하판파이프(5)에 양쪽을 견고하게 결합되는 구조이므로 그 내구성이 종래에 비하여 매우 크게 향상되는 효과를 가져오게 된다.In addition, since the partition wall 7 is firmly coupled to both the upper pipe 1 and the lower pipe 5, the durability is greatly improved compared to the conventional structure.

도 1은 종래 기술에 의한 엔진의 배기파이프 구조를 설명한 도면,1 is a view for explaining the exhaust pipe structure of the engine according to the prior art,

도 2는 종래 기술에 의한 전방측 배기파이프의 제작 구조를 설명한 도면,2 is a view illustrating a manufacturing structure of a front side exhaust pipe according to the prior art;

도 3은 도 1의 Ⅲ―Ⅲ선 단면도,3 is a cross-sectional view taken along line III-III of FIG. 1;

도 4는 본 발명에 따른 엔진의 배기파이프 구조를 설명한 도면,4 is a view for explaining the exhaust pipe structure of the engine according to the present invention;

도 5는 본 발명에 따른 엔진의 배기파이프 구조의 외관을 도시한 도면,5 is a view showing the appearance of the exhaust pipe structure of the engine according to the present invention;

도 6은 도 5에서 내측파이프를 제거한 상태를 도시한 도면이다.6 is a view illustrating a state in which the inner pipe is removed from FIG. 5.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

1; 상판파이프 3; 배기파이프One; Top pipe 3; Exhaust pipe

5; 하판파이프 7; 격벽5; Lower pipe 7; septum

9; 용접구멍 11; 절곡부9; Welding hole 11; Bend

13; 안착홈 15; 연통공13; Seating groove 15; Communicator

Claims (4)

상판파이프와;Top pipe; 상기 상판파이프에 결합되어 배기파이프를 구성하는 하판파이프와;A lower pipe coupled to the upper pipe to form an exhaust pipe; 상기 상판파이프의 내측에 상단이 결합되고 하단이 상기 하판파이프의 내측면에 밀착되는 격벽과;An upper end coupled to the inner side of the upper pipe and a lower end of the partition wall in close contact with the inner surface of the lower pipe; 상기 하판파이프에 상기 격벽이 밀착하는 부위에 맞추어 형성된 용접구멍;A welding hole formed in accordance with a portion where the partition wall is in close contact with the lower pipe; 을 포함하여 구성된 것을 특징으로 하는 엔진의 배기파이프 구조.Exhaust pipe structure of the engine, characterized in that configured to include. 청구항 1에 있어서,The method according to claim 1, 상기 격벽의 상기 하판파이프에 밀착되는 하단은 일측으로 절곡되어 상기 하판파이프의 내측면에 면접촉하는 절곡부를 구비하고;A lower end in close contact with the lower plate pipe of the partition wall is bent to one side and provided with a bent portion in surface contact with an inner surface of the lower plate pipe; 상기 하판파이프의 용접구멍은 상기 절곡부에 의해 막히는 크기로 형성된 것The welding hole of the lower pipe is formed to a size that is blocked by the bent portion 을 특징으로 하는 엔진의 배기파이프 구조.An exhaust pipe structure of the engine, characterized in that. 청구항 2에 있어서,The method according to claim 2, 상기 하판파이프에는 상기 격벽의 하단이 안착될 수 있도록, 상기 절곡부의 윤곽에 따라 안착홈이 형성된 것The lower plate pipe has a seating groove formed in accordance with the contour of the bent portion so that the bottom of the partition can be seated 을 특징으로 하는 엔진의 배기파이프 구조. An exhaust pipe structure of the engine, characterized in that. 청구항 1에 있어서,The method according to claim 1, 상기 격벽에는 기류소음을 저감하기 위한 다수의 연통공이 일부분에 모여서 천공된 것The partition wall is formed by drilling a plurality of communication holes in a portion to reduce airflow noise 을 특징으로 하는 엔진의 배기파이프 구조.An exhaust pipe structure of the engine, characterized in that.
KR1020070131776A 2007-12-15 2007-12-15 Exhaust Pipe Structure of Engine KR100946494B1 (en)

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Publication number Priority date Publication date Assignee Title
CN105525972A (en) * 2014-10-17 2016-04-27 现代自动车株式会社 Exhaust pipe for turbo engine

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KR102152119B1 (en) 2020-03-18 2020-09-04 장남수 Press for forming sensor hole and pipe manufacturing method of using the press

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JP2915386B1 (en) 1998-01-09 1999-07-05 川崎重工業株式会社 Exhaust manifold for motorcycle
JP2000046253A (en) 1998-07-24 2000-02-18 Calsonic Corp Manufacture of internal division tube and internal division tube
JP2000088150A (en) 1998-09-16 2000-03-31 Toshiomi Hayashi Method and structure of assembling piping or the like
JP3934805B2 (en) * 1998-11-18 2007-06-20 株式会社ユタカ技研 Two-passage exhaust pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105525972A (en) * 2014-10-17 2016-04-27 现代自动车株式会社 Exhaust pipe for turbo engine

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