KR19980050758U - Catalytic converter of car - Google Patents
Catalytic converter of car Download PDFInfo
- Publication number
- KR19980050758U KR19980050758U KR2019960063934U KR19960063934U KR19980050758U KR 19980050758 U KR19980050758 U KR 19980050758U KR 2019960063934 U KR2019960063934 U KR 2019960063934U KR 19960063934 U KR19960063934 U KR 19960063934U KR 19980050758 U KR19980050758 U KR 19980050758U
- Authority
- KR
- South Korea
- Prior art keywords
- catalytic converter
- air
- catalyst
- engine
- adsorbent
- Prior art date
Links
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 21
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 239000003463 adsorbent Substances 0.000 claims abstract description 11
- 239000000969 carrier Substances 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 238000007664 blowing Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 18
- 239000004215 Carbon black (E152) Substances 0.000 description 14
- 229930195733 hydrocarbon Natural products 0.000 description 14
- 150000002430 hydrocarbons Chemical class 0.000 description 14
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
- 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
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0835—Hydrocarbons
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
본 고안은 자동차의 촉매 컨버터에 관한 것으로서, 특히 엔진의 냉시동시 다량으로 배출되는 HC를 감소시키고자 한다.The present invention relates to a catalytic converter of an automobile, and in particular, to reduce the amount of HC emitted during cold start of the engine.
이를 위하여, 본 고안의 촉매 컨버터는 하우징(2)에 설치된 복수 담체(3)의 사이에 HC흡착제(4)를 설치하고, 엔진의 난기 운전시 촉매가 활성 온도에 도달되면, 에어 인젝터(5)를 통해 상기 HC흡착제로 공기를 불어 HC를 재이탈시키고, 촉매에 의해 정화되도록 한 기술적 구성으로 이루어진다.To this end, the catalytic converter of the present invention is to install the HC adsorbent (4) between the plurality of carriers (3) installed in the housing (2), the air injector (5) when the catalyst reaches the active temperature during the warm operation of the engine Blowing the air through the HC adsorbent through the HC to remove the reconstituted, it is made of a technical configuration to be purified by a catalyst.
이와 같은 본 고안의 구성에 따라, 엔진의 냉시동시 다량으로 배출되는 HC는 HC흡착제에 포집된 후, 엔진의 난기 운전시 재 이탈되어 촉매에 의해 정화된다.According to the configuration of the present invention as described above, HC discharged in a large amount during cold start of the engine is captured by the HC adsorbent, and then separated again during operation of the engine warm-up and purified by the catalyst.
Description
본 고안은 엔진에서 배출된 배기가스의 유해성분을 산화, 환원시켜 감소시키기 위해 배기 파이프에 설치되는 자동차의 촉매 컨버터(catalytic converter)에 관한 것으로서, 특히 냉시동(cold start)때 많이 발생되는 탄화수소(HC)를 감소시킬 수 있도록 하는 촉매 컨버터에 관한 것이다.The present invention relates to a catalytic converter of an automobile installed in an exhaust pipe to oxidize, reduce, and reduce harmful components of exhaust gas discharged from an engine. In particular, a hydrocarbon (generally generated during cold start) It relates to a catalytic converter which makes it possible to reduce HC).
주지된 바와 같이, 최근 들어서 자동차의 배출가스로 인한 대기 오염을 방지하는 것이 환경 위생상 중요한 문제로 대두되고 있다.As is well known, in recent years, to prevent air pollution due to the emissions of automobiles has emerged as an important issue for environmental hygiene.
자동차에서 배출되는 가스는 배기 파이프에서 배출되는 배기가스, 기관의 크랭크케이스에서 나오는 블로바이 가스, 및 연료탱크나 기화기등에서 증발하는 연료 증발 가스가 있다. 이 중에서 배기가스는 연료가 실린더 안에서 연소한 다음, 배기 파이프를 통해 외부로 배출되는 가스를 말하며, 배기가스의 성분은 대부분이 인체에 무해한 수증기(H2O), 질소(N2), 탄산가스(CO2) 등이나, 일산화탄소(CO), 탄화수소(HC), 질소 산화물(NOx) 등의 유해한 물질도 포함되어 있다.Gases emitted from automobiles include exhaust gases emitted from exhaust pipes, blow-by gases from engine crankcases, and fuel evaporative gases evaporated from fuel tanks or carburettors. Among these, the exhaust gas refers to a gas that the fuel is burned in a cylinder and then discharged to the outside through the exhaust pipe, and the components of the exhaust gas are mostly harmless to water (H 2 O), nitrogen (N 2 ), and carbon dioxide gas. also includes harmful substances, such as (CO 2) or the like, carbon monoxide (CO), hydrocarbon (HC), nitrogen oxides (NOx).
상기와 같은 배기가스내의 유해성분을 제거하기 위한 방법으로, 종래에는 유해가스를 산화 또는 환원 촉매로 제거하는 촉매 컨버터 방식등이 공지되어 있다.As a method for removing harmful components in the exhaust gas as described above, a catalytic converter method for removing harmful gases with an oxidation or reduction catalyst is known in the related art.
촉매 컨버터는 도 1에 도시된 바와 같이, 다기통의 엔진에서 연소된 배기가스가 이동하는 통로인 배기 파이프(1)에 설치된다.As shown in FIG. 1, the catalytic converter is installed in the exhaust pipe 1, which is a passage through which exhaust gas combusted in a multi-cylinder engine moves.
이러한 촉매 컨버터는 금속제 하우징(2)속에 촉매가 도포된 담체(3)가 설치된 구조로 이루어지며, 배기 파이프(1)를 통해 배출된 배기가스의 유해성분을 산화, 환원 촉매에 의해 무해성분으로 전환한다.The catalytic converter has a structure in which a carrier 3 coated with a catalyst is installed in the metal housing 2, and converts harmful components of the exhaust gas discharged through the exhaust pipe 1 into harmless components by oxidation and reduction catalysts. do.
종래 기술에서 설명된 촉매 컨버터에 있어서, 촉매는 유해가스와의 반응에 필요한 온도 및 체류 시간을 필요로 하기 때문에, 특히 엔진의 냉시동시에는 그 성능이 저하되는 문제점이 있다.In the catalytic converter described in the prior art, since the catalyst requires a temperature and a residence time necessary for the reaction with the noxious gas, there is a problem in that its performance is degraded, especially during cold start of the engine.
따라서, 촉매가 활성 온도(대략 350℃)까지 도달하는 중에 발생되는 배기가스 특히, HC는 그대로 방출되어, 대기를 오염시키는 문제점이 있다.Therefore, the exhaust gas, especially HC, generated while the catalyst reaches the active temperature (approximately 350 ° C.) is released as it is, and there is a problem of polluting the atmosphere.
본 고안은 상술한 종래 기술의 문제점을 해소하기 위한 목적에서 제안된 것으로서, 특히 엔진의 냉시동시 다량으로 배출되는 HC를 감소시킬 수 있도록 하는 자동차의 촉매 컨버터를 제공한다.The present invention has been proposed for the purpose of solving the above-mentioned problems of the prior art, and in particular, provides a catalytic converter of a vehicle that can reduce HC discharged in large quantities during cold start of the engine.
도 1 은 일반적인 자동차의 촉매 컨버터를 도시한 단면도.1 is a cross-sectional view showing a catalytic converter of a typical automobile.
도 2 는 본 고안에 의한 자동차의 촉매 컨버터를 도시한 단면도.2 is a cross-sectional view showing a catalytic converter of a vehicle according to the present invention.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1 - 배기 파이프2 - 하우징1-exhaust pipe 2-housing
3 - 담체4 - HC흡착제3-Carrier 4-HC Adsorbent
5 - 에어 인젝터6 - 첵밸브5-Air Injector 6-Check Valve
7 - 에어 펌프8 - 관로7-Air Pump 8-Pipeline
상술한 목적을 실현하기 위한 수단으로서, 본 고안의 구성을 첨부된 도면에 의거하여 보다 상세하게 설명한다.As means for realizing the above object, the configuration of the present invention will be described in more detail with reference to the accompanying drawings.
도 2는 본 실시예에 관련된 자동차의 촉매 컨버터를 도시한 단면 구성도이다.2 is a sectional configuration diagram showing a catalytic converter of a vehicle according to the present embodiment.
본 실시예를 설명함에 있어, 종래 기술에서 인용된 도면과 동일한 본 실시예의 구성에 대해서는 설명의 명료성을 위해 동일한 부호를 사용한다.In describing the present embodiment, the same reference numerals are used for the clarity of description for the configuration of the present embodiment that is the same as the drawings cited in the prior art.
도면에서의 설명 부호(1)은 배기 파이프를 지칭한다.Reference numeral 1 in the drawings refers to the exhaust pipe.
배기 파이프(1)는 다기통의 엔진에서 배기 매니폴드를 통해 배출되는 배기가스의 이동 통로로서 설치된다.The exhaust pipe 1 is provided as a movement passage of the exhaust gas discharged through the exhaust manifold from the multi-cylinder engine.
이러한 배기 파이프(1)에는 배기가스중의 유해 성분을 정화시키기 위한 촉매 컨버터가 설치된다. 촉매 컨버터는 금속제 하우징(2)속에 촉매가 도포된 담체(2)가 설치된 구조로 이루어진다.The exhaust pipe 1 is provided with a catalytic converter for purifying harmful components in the exhaust gas. The catalytic converter has a structure in which a carrier 2 coated with a catalyst is installed in a metal housing 2.
이와 같은 구성들을 포함하는 촉매 컨버터에 있어서, 본 실시예는 특히 엔진의 냉시동시 다량으로 매출되는 HC 성분을 포집하였다가, 촉매가 활성 온도에 도달되는 엔진의 난기 운전시 다시 이탈시켜, 촉매에 의해 정화되도록 한 기술적 구성으로 이루어진다.In the catalytic converter including such configurations, the present embodiment particularly captures a large amount of HC components sold during cold start of the engine, and then, when the catalyst reaches an active temperature, is released again during the warm-up operation of the engine, whereby It consists of a technical configuration to be cleaned.
보다 구체적으로, 본 실시예의 촉매 컨버터는 하우징(2)에 설치된 복수 담체(3)의 사이에 HC흡착제(4)를 설치하고, 엔진의 난기 운전시 촉매가 활성 온도에 도달되면, 에어 공급장치를 통해 상기 HC흡착제(4)로 공기를 불어 HC를 재이탈시키고, 촉매에 의해 정화되도록 한다.More specifically, in the catalytic converter of the present embodiment, the HC adsorbent 4 is installed between the plurality of carriers 3 installed in the housing 2, and when the catalyst reaches the active temperature during the warm operation of the engine, the air supply device is turned off. Blowing air through the HC adsorbent (4) through to re-desorb HC and to be purified by a catalyst.
여기서, 상기 에어 공급장치는 HC흡착제(4)의 전측에 설치되는 에어 인젝터(5)와, 에어 인젝터(5)로 공기를 압송하는 에어 펌프(7)로 구성되며, 에어 인젝터(6)와 에어 펌프(7)의 사이 관로(8)에 배기가스의 역류를 방지하는 첵벨브(6)가 설치된 구조로 이루어진다.Here, the air supply device is composed of an air injector 5 installed on the front side of the HC adsorbent 4, an air pump 7 for pumping air into the air injector 5, the air injector 6 and air It consists of the structure which the valve | bulb valve 6 which prevents the backflow of exhaust gas in the pipe line 8 between the pumps 7 is provided.
이상에서 설명된 본 실시예의 구성에 의거하여, 엔진의 냉시동시 다량으로 배출되는 HC는 HC흡착제(4)에 포집된 후, 엔진의 난기 운전시 재 이탈되어 촉매에 의해 정화된다.Based on the configuration of the present embodiment described above, HC discharged in a large amount during cold start of the engine is collected by the HC adsorbent 4 and then re-leaved during the warm operation of the engine and purified by the catalyst.
이상에서 설명된 구성 및 작용을 통하여 알 수 있는 바와 같이, 본 고안에 의한 자동차의 촉매 컨버터는 종래 기술의 문제점을 실질적으로 해소한다.As can be seen through the configuration and operation described above, the catalytic converter of the automobile according to the present invention substantially solves the problems of the prior art.
즉, 본 고안에 의하면 엔진의 냉시동시 특히 많이 배출되는 HC가 감소되는 효과를 얻을 수 있다.That is, according to the present invention, it is possible to obtain an effect of reducing HC, which is particularly discharged during cold start of the engine.
따라서, 본 고안에 의하면 대기의 오염도를 줄일 수 있으며, 배기가스의 규제에도 능동적으로 대처할 수 있다.Therefore, according to the present invention, it is possible to reduce the pollution level of the air and to actively cope with the regulation of the exhaust gas.
한편, 본 고안은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 실용신안등록 청구의 범위에서 청구하는 본 고안의 요지를 벗어남이 없이 당해 고안이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능할 것이다.On the other hand, the present invention is not limited to the above-described specific preferred embodiment, any person having ordinary knowledge in the field to which the subject innovation belongs without departing from the gist of the subject innovation claimed in the utility model registration claims Modifications may be made.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960063934U KR19980050758U (en) | 1996-12-30 | 1996-12-30 | Catalytic converter of car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960063934U KR19980050758U (en) | 1996-12-30 | 1996-12-30 | Catalytic converter of car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980050758U true KR19980050758U (en) | 1998-10-07 |
Family
ID=54002052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960063934U KR19980050758U (en) | 1996-12-30 | 1996-12-30 | Catalytic converter of car |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19980050758U (en) |
-
1996
- 1996-12-30 KR KR2019960063934U patent/KR19980050758U/en not_active Application Discontinuation
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| Date | Code | Title | Description |
|---|---|---|---|
| WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |