KR19980015722U - Exhaust pipe structure of automobile - Google Patents
Exhaust pipe structure of automobile Download PDFInfo
- Publication number
- KR19980015722U KR19980015722U KR2019960028978U KR19960028978U KR19980015722U KR 19980015722 U KR19980015722 U KR 19980015722U KR 2019960028978 U KR2019960028978 U KR 2019960028978U KR 19960028978 U KR19960028978 U KR 19960028978U KR 19980015722 U KR19980015722 U KR 19980015722U
- Authority
- KR
- South Korea
- Prior art keywords
- exhaust pipe
- catalyst
- exhaust
- exhaust gas
- manifold
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 claims abstract description 34
- 239000000919 ceramic Substances 0.000 claims abstract description 15
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 abstract description 30
- 238000000746 purification Methods 0.000 abstract description 8
- 230000004913 activation Effects 0.000 abstract description 6
- 238000003915 air pollution Methods 0.000 abstract description 4
- 239000002912 waste gas Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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
- F01N13/14—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 having thermal insulation
-
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
-
- 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
- F01N2530/00—Selection of materials for tubes, chambers or housings
Abstract
본 고안은 자동차의 배기파이프 구조에 관한 것으로 특히, 매니폴드(1)와 촉매(2)사이에 설치되어 배기가스를 촉매(2)측으로 유도시켜 주는 배기파이프(3)의 내부에 그 외경이 배기파이프의 내경보다 작게 성형된 세라믹 듀브(4)를 내장시키거나, 배기파이프(3) 자체를 Ti 합금으로 제조하므로써, 엔진에서 발생되는 배기가스가 촉매로 전달될시 열손실이 거의 없게 되므로 촉매의 초기 활성화특성이 촉진되어 배기가스의 정화능력이 향상되므로 폐가스의 누출이 적어지게 되어 대기오염을 줄일 수 있는 등 매우 유용한 고안인 것이다.The present invention relates to an exhaust pipe structure of an automobile, and in particular, the outer diameter of the exhaust pipe 3 is installed between the manifold 1 and the catalyst 2 to guide the exhaust gas to the catalyst 2 side. By embedding the ceramic tube 4 molded smaller than the inner diameter of the pipe or by manufacturing the exhaust pipe 3 itself from a Ti alloy, since the exhaust gas generated in the engine is delivered to the catalyst, there is almost no heat loss. Since the initial activation characteristics are promoted to improve the purification capacity of the exhaust gas is a very useful design, such as less leakage of waste gas to reduce air pollution.
Description
본 고안은 자동차의 매니폴드(Manifold)와 촉매(Catalyst) 사이에 설치되는 배기파이프의 구조에 관한 것이다.The present invention relates to a structure of an exhaust pipe installed between a manifold and a catalyst of an automobile.
더욱상세히는, 다기관을 갖는 엔진에서 배출되는 배기가스를 한곳으로 집합하여 배출시키는 매니폴드와, 화학반응을 통해 배기가스를 정화시켜 주는 역할을 수행하는 촉매 사이에 연결되는 배기파이프의 내부에 열전도가 매우 낮고 인슐레이션 역할을 수행하는 세라믹 튜브를 내장하거나, 상기 배기파이프 자체를 Ti 합금으로 제조하여 엔진에서 발생되는 열이 거의 손실되지 않은 상태에서 촉매에 전달되도록 한 자동차의 배기파이프 구조 개량에 관한 것이다.More specifically, the heat conduction is connected to the inside of the exhaust pipe connected between the manifold which collects and discharges the exhaust gas discharged from the engine having the manifold in one place and the catalyst which serves to purify the exhaust gas through chemical reaction. The present invention relates to an improvement in the structure of an exhaust pipe of an automobile incorporating a very low and insulated ceramic tube or by making the exhaust pipe itself from a Ti alloy so that heat generated from an engine is almost lost.
종래의 자동차에서는 도 1 에 나타낸 바와 같이, 매니폴드(31)와 촉매(32)사이에 스테인레스로 제작한 배기파이프(33)를 그데로 설치한 구성으로 되어 있었다.In the conventional automobile, as shown in FIG. 1, the exhaust pipe 33 made from stainless steel was provided between the manifold 31 and the catalyst 32.
그런데, 상기와 같이 스테인레스로 제작하여 소정길이로 절단한 배기파이프(33)를 다기관 엔진의 배기부에 결합되어 배기가스를 모아주는 매니폴드(31)와 화학반응을 통해 배기가스를 정화시켜 주는 촉매(32) 사이에 그데로 설치할 경우, 엔진에서 발생되는 열이 촉매(32)로 전달되기에 앞서 상기 스테인레스 배기파이프(33)를 통해 빨리 손실되어 촉매의 LOT(Light Off Temperature) 특성 즉, 초기 활성화특성이 저하되어 배기가스에 대한 정화기능이 떨어지는 문제점이 있다.However, the catalyst for purifying the exhaust gas through a chemical reaction with the manifold 31 which collects the exhaust gas by coupling the exhaust pipe 33 made of stainless steel and cut to a predetermined length to the exhaust pipe of the manifold engine as described above. When installed between the 32, heat generated from the engine is quickly lost through the stainless exhaust pipe 33 before being transferred to the catalyst 32, so that the catalyst has a LOT (Light Off Temperature) characteristic, that is, an initial activation characteristic. There is a problem that the deterioration is reduced purification function for the exhaust gas.
도 1 은 종래의 배기파이프를 매니폴드와 촉매 사이에 설치한 상태의 요부 단면도,BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view of principal parts of a state in which a conventional exhaust pipe is installed between a manifold and a catalyst;
도 2 는 본 고안의 배기 파이프를 매니폴드와 촉매 사이에 설치한 상태의 요부 단면도.Fig. 2 is a sectional view of principal parts of a state in which an exhaust pipe of the present invention is installed between a manifold and a catalyst.
도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings
1 : 매니폴드2 : 촉매1: Manifold 2: Catalyst
3 : 배기파이프4 : 세라믹 튜브3: exhaust pipe 4: ceramic tube
이러한 본 고안의 목적은, 다기관 엔진의 배기부에 결합되어 배기가스를 모아주는 매니폴드와; 화학반응을 통해 배기가스를 정화시켜 주는 촉매와; 상기 매니폴드와 촉매사이에 설치되어 배기가스를 촉매측으로 유도시켜 주는 배기파이프를 구비한 자동차의 배기시스템에 있어서, 상기 배기파이프의 내부에 그 외경이 배기파이프의 내경보다 작게 성형된 세라믹 튜브를 내장하거나, Ti 합금으로 제조하므로써 달성된다.The object of the present invention is a manifold coupled to the exhaust of the manifold engine to collect the exhaust gas; A catalyst for purifying exhaust gas through a chemical reaction; In an exhaust system of an automobile provided with an exhaust pipe which is disposed between the manifold and the catalyst to direct exhaust gas to the catalyst side, a ceramic tube is formed in the exhaust pipe, the outer diameter of which is smaller than the inner diameter of the exhaust pipe. Or by manufacturing from a Ti alloy.
상기한 본 고안에 의하면, 다기관 엔진의 매니폴드와 배기가스 정화용 촉매 사이에 연결되어 매니폴드에 의해 모아진 배기가스를 촉매측으로 전달시켜 주는 배기파이프의 내부에 세라믹 튜브를 내장하거나, 상기 배기파이프 자체를 Ti 합금으로 제조하므로써, 엔진에서 발생되는 배기가스가 열손실이 거의 없이 촉매에 전달되어 촉매의 초기 활성화특성(LOT)이 촉진되므로 촉매의 배기가스에 대한 정화능력이 향상되므로 폐가스의 누출이 적어지게 되어 이로 인한 대기오염을 미연에 방지할 수 있는 것이다.According to the present invention described above, a ceramic tube is embedded in an exhaust pipe connected between the manifold of the manifold engine and the catalyst for purification of exhaust gas to transfer the exhaust gas collected by the manifold to the catalyst side, or the exhaust pipe itself is By using Ti alloy, exhaust gas from engine is delivered to catalyst with little heat loss, which promotes the initial activation characteristic of catalyst (LOT), which improves the catalyst's purification ability. This can prevent air pollution caused by this in advance.
이하, 첨부된 도면에 의거하여 본 고안의 바람직한 실시예를 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2 는 본 고안의 실시예를 나타낸 것으로써, 다기관 엔진의 배기부에 결합되어 배기가스를 모아주는 매니폴드(1)와; 화학반응을 통해 배기가스를 정화시켜 주는 촉매(2)와; 상기 매니폴드(1)와 촉매(2)사이에 설치되어 배기가스를 촉매(2)측으로 유도시켜 주는 배기파이프(3)를 구비한 자동차의 배기시스템에 있어서, 상기 배기파이프(3)의 내부에 그 외경이 배기파이프의 내경보다 작게 성형된 세라믹 듀브(4)를 내장시켜서 된 것을 기본 적인 특징으로 한다.Figure 2 shows an embodiment of the present invention, a manifold (1) coupled to the exhaust of the manifold engine to collect the exhaust gas; A catalyst (2) for purifying exhaust gas through a chemical reaction; In the exhaust system of an automobile provided with an exhaust pipe (3) provided between the manifold (1) and the catalyst (2) to direct exhaust gas to the catalyst (2) side, inside the exhaust pipe (3). The basic feature is that the outer diameter is formed by embedding the ceramic tube 4 molded smaller than the inner diameter of the exhaust pipe.
또한, 상기 배기파이프(3) 자체를 Ti 합금으로 제조한 것을 특징으로 하기도 한다.The exhaust pipe 3 itself may be made of a Ti alloy.
이와같은 구성을 갖는 본 고안은 먼저, 다기관 엔진의 배기부에 결합되어 배기가스를 모아주는 매니폴드(1)와 화학반응을 통해 배기가스를 정화시켜 주는 촉매(2) 사이에 배기파이프(3)를 설치할시, 그 내부에 열전도가 매우 낮고 인슐레이션 역할을 수행하는 세라믹 듀브(4)를 내장하여 준다.The present invention having such a configuration, first, the exhaust pipe (3) between the manifold (1) coupled to the exhaust of the manifold engine to collect the exhaust gas and the catalyst (2) for purifying the exhaust gas through a chemical reaction When installing, it has a ceramic tube (4) that has a very low thermal conductivity and performs an insulation role therein.
따라서, 엔진에서 발생되는 고온의 배기가스가 매니폴드(1)를 통해 모아져 상기 배기파이프(3)를 거쳐 촉매(2)측으로 유도될시 상기 배기파이프(3)내의 세라믹 듀브(4)에 의해 배기가스의 열이 외부로 방출되는 것이 방지된 상태 즉, 배기가스가 엔진에서 배출될시의 열을 갖고 촉매(2)측으로 전달되므로 촉매(2)의 초기 활성화특성이 촉진되어 배기가스의 정화능력이 향상되는 것이다.Therefore, when the high temperature exhaust gas generated in the engine is collected through the manifold 1 and guided to the catalyst 2 side through the exhaust pipe 3, the exhaust gas is discharged by the ceramic pipe 4 in the exhaust pipe 3. Since the heat of the gas is prevented from being discharged to the outside, that is, the exhaust gas is transferred to the catalyst 2 with heat generated when the exhaust gas is discharged from the engine, the initial activation characteristic of the catalyst 2 is promoted, and the purification capability of the exhaust gas To improve.
물론, 상기 세라믹 듀브(4)의 외경은 배기파이프(3)의 내경보다 약간 작게하여 배기파이프(3)로 세라믹 듀브(4)를 삽입하기 원할토록 한다.Of course, the outer diameter of the ceramic tube 4 is slightly smaller than the inner diameter of the exhaust pipe 3 so that the ceramic tube 4 can be inserted into the exhaust pipe 3.
한편, 상기 배기파이프(3)를 열전도도가 매우 작은 Ti 합금으로 제작하여도 상기에서와 같이 배기파이프(3)내에 세라믹 듀브(4)를 내장한 것과 동일한 효과를 얻을 수 있는데, 생산원가나 조립작업등을 감안하여 볼때 세라믹 듀브(4)를 배기파이프(3)에 내장하는 것 보다 Ti 합금으로 배기파이프 자체를 제조하는 것이 유니하다.On the other hand, even if the exhaust pipe 3 is made of a Ti alloy having a very low thermal conductivity, the same effect as that in which the ceramic pipe 4 is incorporated in the exhaust pipe 3 can be obtained. In view of work and the like, the exhaust pipe itself is made of Ti alloy rather than the ceramic pipe 4 embedded in the exhaust pipe 3.
이상에서와 같이 본 고안에 의하면, 배기파이프의 내부에 세라믹 튜브를 내장하거나, 그 자체를 Ti 합금으로 제조하므로써, 엔진에서 발생되는 배기가스가 촉매로 전달될시 열손실이 거의 없게 되므로 촉매의 초기 활성화특성이 촉진되어 배기가스의 정화능력이 향상되므로 폐가스의 누출이 적어지게 되어 대기오염을 줄일 수 있는 등 매우 유용한 고안인 것이다.As described above, according to the present invention, since a ceramic tube is embedded inside the exhaust pipe or manufactured by a Ti alloy, since the exhaust gas generated in the engine is transferred to the catalyst, there is almost no heat loss. It is a very useful design such that the activation characteristics are promoted and the purification efficiency of the exhaust gas is improved, thereby reducing the leakage of waste gas and reducing the air pollution.
본 고안은 다기관 엔진의 매니폴드와 배기가스 정화용 촉매 사이에 연결되는 배기파이프의 내부에 엔진에서 발생되는 배기가스가 거의 열손실없이 촉매에 전달될 수 있도록 세라믹 튜브를 내장하거나 배기파이프 자체를 Ti 합금으로 제조하므로써, 촉매의 초기 활성화특성(LOT)이 촉진되어 배기가스에 대한 정화능력이 향상되므로 폐가스의 누출로 인한 대기오염을 대폭 저하시킬 수 있는 자동차의 배기파이프를 제공하는 데 그 목적이 있다.The present invention incorporates a ceramic tube or the exhaust pipe itself in the interior of the exhaust pipe connected between the manifold of the manifold engine and the exhaust gas purification catalyst so that the exhaust gas generated from the engine can be delivered to the catalyst with almost no heat loss. It is an object of the present invention to provide a vehicle exhaust pipe that can greatly reduce the air pollution due to the leakage of waste gas by promoting the initial activation characteristics (LOT) of the catalyst to improve the purification ability for the exhaust gas.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960028978U KR19980015722U (en) | 1996-09-11 | 1996-09-11 | Exhaust pipe structure of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960028978U KR19980015722U (en) | 1996-09-11 | 1996-09-11 | Exhaust pipe structure of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980015722U true KR19980015722U (en) | 1998-06-25 |
Family
ID=53975784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960028978U KR19980015722U (en) | 1996-09-11 | 1996-09-11 | Exhaust pipe structure of automobile |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19980015722U (en) |
-
1996
- 1996-09-11 KR KR2019960028978U patent/KR19980015722U/en not_active Application Discontinuation
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