KR100263999B1 - Reducing apparatus of exhaust hazardous gas for vehicle - Google Patents
Reducing apparatus of exhaust hazardous gas for vehicle Download PDFInfo
- Publication number
- KR100263999B1 KR100263999B1 KR1019960063573A KR19960063573A KR100263999B1 KR 100263999 B1 KR100263999 B1 KR 100263999B1 KR 1019960063573 A KR1019960063573 A KR 1019960063573A KR 19960063573 A KR19960063573 A KR 19960063573A KR 100263999 B1 KR100263999 B1 KR 100263999B1
- Authority
- KR
- South Korea
- Prior art keywords
- hydrogen gas
- exhaust
- gas
- exhaust manifold
- chamber
- Prior art date
Links
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
- F01N3/10—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
- F01N3/18—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 methods of operation; Control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
본 발명은 자동차용 배기 유해가스 저감장치에 관한 것으로서, 특히 엔진의 시동 초기에 다량으로 발생되는 탄화수소(HC)를 저감시킬 수 있도록 하기 위하여 배기 매니폴드 내에 소정의 수소가스를 공급할 수 있는 수단을 제공함으로써, 수소가스와 혼합되는 탄화수소의 산화를 유도하여 배기 유해가스 중에 포함되어 있는 탄화수소의 양을 최대한 저감시킬 수 있도록 한 자동차용 배기 유해가스 저감장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for reducing harmful gas for automobiles, and in particular, to provide a means for supplying predetermined hydrogen gas in an exhaust manifold in order to reduce a large amount of hydrocarbon (HC) generated at the initial stage of engine start. Accordingly, the present invention relates to an automobile harmful gas reduction apparatus for inducing oxidation of hydrocarbons mixed with hydrogen gas to minimize the amount of hydrocarbon contained in the exhaust harmful gas.
일반적으로 자동차의 배기가스에는 인체에 유해한 일산화탄소, 탄화수소, 질소산화물 등이 많이 포함되어 있기 때문에 대기오염과 환경 위생상 중요한 문제로 대두되고 있으며 그 대책이 시급히 요청되고 있는 실정이다.In general, exhaust gases of automobiles contain carbon monoxide, hydrocarbons, and nitrogen oxides, which are harmful to the human body, and thus are emerging as important issues for air pollution and environmental hygiene, and measures are urgently required.
이와 관련하여 자동차에는 배기 유해가스를 줄이기 위한 여러 장치가 마련되어 있는 바, 흡기계통에서 배기가스의 일부를 재순환시켜서 연소할 때의 최고 온도를 낮추어 질소산화물의 발생을 억제하는 배기가스 재순환장치, 배기가스 속의 일산화탄소나 탄화수소를 배기계통에서 촉매를 통해 정화시키면 그 함유량을 감소시킬 수 있으므로 촉매의 최대효율을 위해 별도의 신선한 공기를 공급하는 2차공기 공급장치, 배기가스 중의 일산화탄소나 탄화수소에 대해서는 추가로 공급된 2차공기와 함께 산화시켜 이산화탄소와 물로 만들며 질소산화물에 대해서는 환원시켜 질소와 산소로 만드는 3원촉매 변환장치 등이 그 대표적인 예라 할 수 있다.In this connection, automobiles are equipped with various devices to reduce harmful exhaust gas.The exhaust gas recirculation device and exhaust gas which reduce the maximum temperature when burning by recirculating a part of the exhaust gas in the intake pipe to suppress the generation of nitrogen oxides Purifying carbon monoxide or hydrocarbons in the exhaust system through the catalyst can reduce its content, so a secondary air supply device that supplies extra fresh air for maximum efficiency of the catalyst, and additionally supplies carbon monoxide or hydrocarbons in the exhaust gas. The typical example is a three-way catalytic converter that oxidizes with secondary air to make carbon dioxide and water, and reduces nitrogen oxides to nitrogen and oxygen.
위와 같은 배기 유해가스에 대한 정화는 결국 촉매수단을 통해서 대부분 이루어지는데, 촉매가 활성화되기 전, 즉 촉매가 소정의 온도에 도달되기 전과 같은 엔진 시동 초기에는 미연소된 가스인 탄화수소가 다량으로 발생하기 때문에 위에서 열거한 여러 배기 유해가스 저감장치로는 이때의 다량으로 발생하는 탄화수소를 저감시키는데 미흡한 점이 있었다.Most of the above purification of exhaust harmful gases is performed through catalytic means, and a large amount of unburned gas hydrocarbon is generated before the catalyst is activated, that is, at the initial stage of engine start-up such as before the catalyst reaches a predetermined temperature. Therefore, the various exhaust harmful gas reduction apparatuses listed above were inadequate in reducing hydrocarbons generated in a large amount at this time.
따라서, 본 발명은 이와 같은 점을 감안하여 안출한 것으로서, 배기 매니폴드 내에 소정의 수소가스를 공급할 수 있는 수단과 이것을 제어할 수 있는 수단을 구비하여 수소가스와의 혼합에 의한 탄화수소의 산화를 유도할 수 있도록 함으로써, 엔진의 시동 초기에 다량으로 발생되는 탄화수소(HC)를 최대한 저감시킬 수 있도록 한 자동차용 배기 유해가스 저감장치를 제공하는데 그 안출의 목적이 있는 것이다.Accordingly, the present invention has been devised in view of the above, and has a means capable of supplying a predetermined hydrogen gas in the exhaust manifold and a means capable of controlling the same to induce oxidation of hydrocarbons by mixing with hydrogen gas. It is an object of the present invention to provide a vehicle exhaust toxic gas abatement apparatus capable of maximally reducing hydrocarbon (HC) generated in a large amount at the start of engine start.
제1도는 본 발명에 따른 배기 유해가스 저감장치의 개략도.1 is a schematic diagram of an exhaust gas reducing apparatus according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 배기 매니폴드 11 : 수소가스 공급구멍10: exhaust manifold 11: hydrogen gas supply hole
12 : 챔버 13 : 탱크12 chamber 13 tank
14 : 밸브 15 : ECU14 valve 15 ECU
16 : 촉매16: catalyst
이하, 첨부한 제1도을 참조하여 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the attached FIG. 1.
본 발명은 배기 매니폴드(10)의 일부구간을 둘러싸면서 소정의 공간을 형성하고 있으며 배기 매니폴드(10)의 내측과는 다수의 수소가스 공급구멍(11)을 통해서로 통하는 챔버(12)와, 상기 챔버(12)로 수소가스를 공급하기 위한 탱크(13) 및 공급되는 수소가스를 단속하는 밸브(14)와, 상기 밸브(14)의 개폐상태를 제어하는 ECU(15)로 구성되어서, 엔진 시동 초기에 배기 매니폴드(10)의 내측으로 수소가스가 공급될 수 있도록 된 것을 특징으로 한다.The present invention forms a predetermined space while enclosing a portion of the exhaust manifold 10, and the chamber 12 communicates with the inside of the exhaust manifold 10 through a plurality of hydrogen gas supply holes 11; And a tank 13 for supplying hydrogen gas to the chamber 12, a valve 14 for controlling the supplied hydrogen gas, and an ECU 15 for controlling the opening and closing state of the valve 14, It is characterized in that the hydrogen gas can be supplied to the inside of the exhaust manifold 10 at the initial start of the engine.
여기서 미설명 부호 16은 촉매를 나타낸다.Reference numeral 16 here denotes a catalyst.
이를 좀더 상세히 설명하면 다음과 같다.This will be described in more detail as follows.
첨부한 제1도는 본 발명에 따른 배기 유해가스 저감장치의 구성을 보여주는 개략도로서, 수소가스 공급수단을 이용하여 배기 매니폴드(10)의 내부에 수소가스를 공급함으로써 배기가스 중의 미연소 가스인 탄화수소를 산화, 즉 연소시킬 수 있는 구성을 보여주고 있다.1 is a schematic view showing the configuration of the exhaust gas toxic gas reducing apparatus according to the present invention, and the hydrocarbon which is the unburned gas in the exhaust gas by supplying hydrogen gas into the exhaust manifold 10 using the hydrogen gas supply means. It shows the structure that can oxidize, that is, burn.
상기 수소가스 공급수단은 배기 매니폴드(10)의 일부구간을 소정의 공간으로 둘러싸는 챔버(12)를 형성하고, 챔버(12)와 배기 매니폴드(10)의 내측은 다수의 수소가스 공급구멍(11)을 통해 서로 통할 수 있도록 하며, 소정의 수소가스를 포함하고 있는 탱크(13)를 상기 챔버(12)로 연결하여 챔버(12)를 통한 배기 매니폴드(10)내측으로의 수소가스 공급을 가능하게 하고, 이때의 수소가스는 ECU(15)에 의해 개폐 제어되는 밸브(14)를 이용하여 단속될 수 있도록 한 구조로 이루어진다.The hydrogen gas supply means forms a chamber 12 that surrounds a portion of the exhaust manifold 10 in a predetermined space, and the chamber 12 and the inside of the exhaust manifold 10 have a plurality of hydrogen gas supply holes. (11) to communicate with each other, the tank 13 containing a predetermined hydrogen gas is connected to the chamber 12 to supply hydrogen gas to the inside of the exhaust manifold 10 through the chamber 12 In this case, the hydrogen gas at this time is made of a structure to be intermittent using the valve 14 which is controlled to open and close by the ECU (15).
따라서, 이와 같이 구성된 본 발명에 따른 배기 유해가스 저감장치의 작용효과를 살펴보면 다음과 같다.Therefore, looking at the effect of the exhaust gas reducing device according to the present invention configured as described above are as follows.
엔진 시동 초기에 실린더 안에서 연소된 배기가스가 배기 매니폴드(10)로 유입되면, 이때의 ECU(15)는 냉각수 온도 등의 입력값을 바탕으로 엔진 시동 초기임을 판단하여 밸브(14)를 열게 된다.When the exhaust gas combusted in the cylinder at the initial stage of engine start flows into the exhaust manifold 10, the ECU 15 determines the initial stage of engine start based on an input value such as coolant temperature and opens the valve 14. .
밸브(14)가 열리게 되면, 탱크(13)에 채워져 있던 수소가스가 챔버(12)로 유입되고, 계속해서 이렇게 유입된 수소가스는 수소가스 배출구멍(11)을 통해 배기 매니폴드(10)의 내측으로 공급되어 배기가스와 혼합된다.When the valve 14 is opened, the hydrogen gas filled in the tank 13 flows into the chamber 12, and the hydrogen gas introduced in this way continues through the hydrogen gas discharge hole 11 of the exhaust manifold 10. It is supplied inward and mixed with the exhaust gas.
이때의 배기가스 중에 포함되어 있는 다량의 탄화수소는 공급되는 수소가스와 혼합되면서 대부분 산화되므로, 즉 연소되므로 대기 중으로 배출되는 배기가스중에는 탄화수소의 함유량이 현저하게 줄어들게 된다.At this time, a large amount of hydrocarbons contained in the exhaust gas is oxidized while being mixed with the supplied hydrogen gas, that is, it is combusted, so the content of hydrocarbon is significantly reduced in the exhaust gas discharged into the atmosphere.
이와 같이, 본 발명에서는 엔진 시동 초기와 같이 미연소된 탄화수소가 과다하게 발생되는 특수한 상황에서 전자제어장치(ECU)의 제어를 통해 수소가스를 공급하고, 수소가스와 혼합되는 탄화수소의 산화작용을 유도하여 배기 유해가스 중의 탄화수소 함유량을 최대한 저감시킴으로써, 전체적으로 배기 유해가스의 정화성능을 높일 수 있게 되는 것이다.As described above, in the present invention, hydrogen gas is supplied through the control of an electronic control unit (ECU) in a special situation in which excessively unburned hydrocarbons are generated, such as at the start of engine startup, and the oxidation of hydrocarbons mixed with hydrogen gas is induced. Thus, by reducing the hydrocarbon content in the exhaust harmful gas as much as possible, the purification performance of the exhaust harmful gas can be improved as a whole.
이상에서와 같이 본 발명은 배기가스 중에 다량의 탄화수소가 포함되는 엔진시동 초기와 같은 조건에서 수소가스를 공급하여 탄화수소의 산화, 즉 연소를 유도하는 수소가스 공급수단을 제공함으로써, 엔진의 시동 초기에 배기 유해가스 중의 탄화수소 함유량을 현저하게 줄일 수 있는 효과가 있는 것이다.As described above, the present invention provides a hydrogen gas supply means for inducing oxidation, that is, combustion of hydrocarbons by supplying hydrogen gas under the same conditions as the initial engine startup, in which a large amount of hydrocarbons are contained in the exhaust gas. There is an effect that can significantly reduce the hydrocarbon content in the exhaust harmful gas.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960063573A KR100263999B1 (en) | 1996-12-10 | 1996-12-10 | Reducing apparatus of exhaust hazardous gas for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960063573A KR100263999B1 (en) | 1996-12-10 | 1996-12-10 | Reducing apparatus of exhaust hazardous gas for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980045391A KR19980045391A (en) | 1998-09-15 |
| KR100263999B1 true KR100263999B1 (en) | 2000-08-16 |
Family
ID=19486801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960063573A KR100263999B1 (en) | 1996-12-10 | 1996-12-10 | Reducing apparatus of exhaust hazardous gas for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100263999B1 (en) |
-
1996
- 1996-12-10 KR KR1019960063573A patent/KR100263999B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980045391A (en) | 1998-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO995627D0 (en) | Method and apparatus for eliminating oxide pollutants in an exhaust gas containing oxygen and engine thereby operated | |
| US10934912B2 (en) | Method for the exhaust aftertreatment of an internal combustion engine and exhaust aftertreatment system | |
| US6138454A (en) | Selective catalyst reduction wit pox reactor for engine exhaust aftertreatment | |
| US8429901B2 (en) | Exhaust gas purification device | |
| KR100263999B1 (en) | Reducing apparatus of exhaust hazardous gas for vehicle | |
| JP2001227335A (en) | Exhaust emission control device for internal combustion engine | |
| KR100254381B1 (en) | Method of reducing hazardous gas at cold start | |
| JP2001140630A (en) | Exhaust emission control device for internal combustion engine | |
| KR19980046668A (en) | Secondary combustion device of exhaust gas | |
| KR970001458B1 (en) | 3-bed catalytic converter for allowing use of lean-burn engine | |
| JP3552562B2 (en) | Exhaust gas purification device for internal combustion engine | |
| JP2009275686A (en) | Exhaust gas treatment method and exhaust gas treatment device | |
| KR19980038900A (en) | Secondary air supply of car exhaust system | |
| JP3552561B2 (en) | Internal combustion engine with exhaust gas purification device | |
| KR960006026Y1 (en) | Catalyst activating apparatus for car catalytic converter | |
| KR100379307B1 (en) | Exhausting system for gasoline engine | |
| KR19980050759U (en) | Secondary combustion device of exhaust gas | |
| JP2021110319A (en) | Exhaust emission control device | |
| GB2329131A (en) | Air supply to a catalytic converter | |
| KR19980032733U (en) | Automobile exhaust system secondary air supply device | |
| KR19990003224U (en) | An engine exhaust structure having a vacuum cover formed in a catalytic converter housing | |
| KR19980010435U (en) | Exhaust system with exhaust gas heating device | |
| KR19980023702A (en) | Emission gas control device when starting engine of car | |
| KR20000018894A (en) | Catalysis controlling method and device of inner combustion engine | |
| KR19980047933U (en) | Car catalytic converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20090504 Year of fee payment: 10 |
|
| LAPS | Lapse due to unpaid annual fee |