KR20020083033A - Catalytic converter for vehicle - Google Patents

Catalytic converter for vehicle Download PDF

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Publication number
KR20020083033A
KR20020083033A KR1020010022301A KR20010022301A KR20020083033A KR 20020083033 A KR20020083033 A KR 20020083033A KR 1020010022301 A KR1020010022301 A KR 1020010022301A KR 20010022301 A KR20010022301 A KR 20010022301A KR 20020083033 A KR20020083033 A KR 20020083033A
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KR
South Korea
Prior art keywords
exhaust gas
catalyst
silencer
housing
vehicle
Prior art date
Application number
KR1020010022301A
Other languages
Korean (ko)
Inventor
박종근
Original Assignee
한국델파이주식회사
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Priority to KR1020010022301A priority Critical patent/KR20020083033A/en
Publication of KR20020083033A publication Critical patent/KR20020083033A/en

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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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2825—Ceramics
    • 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
    • F01N13/009—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 two or more separate purifying devices arranged in series
    • F01N13/0097—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 two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • 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
    • F01N2230/00—Combination of silencers and other devices
    • F01N2230/04—Catalytic converters
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • 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

Abstract

PURPOSE: A muffler integrally assembled with an exhaust gas purifier of a vehicle is provided to cut down expenses by integrally assembling the exhaust gas purifier with the muffler with simple structure, and to improve the output by increasing exhaust efficiency. CONSTITUTION: A purifier of a vehicle is composed of a housing(30) having an end cone(31) inputting and outputting exhaust gas, and a mat(35) inserted between catalysts(32,33,34) and the housing to reduce noise and protect the catalysts. The catalyst has the pre-catalyst forming a ceramic carrier with large pores near an exhaust gas inlet(36), the main catalyst spaced from the pre-catalyst with compact pores and placed in the middle of the housing, and the post-catalyst spaced from the main catalyst with large pores near an exhaust gas outlet(37). The structure is simplified, and expenses are reduced by integrally forming the muffler and the exhaust gas purifier in the vehicle.

Description

자동차용 배기 가스 정화 장치 일체형 소음기{Catalytic converter for vehicle}Exhaust system integrated silencer for automobiles {Catalytic converter for vehicle}

본 발명은 자동차용 배기 가스 정화 장치 일체형 소음기에 관한 것으로 더욱 상세하게는, 엔진에서 배출되는 연소 가스의 정화와 폭발 소음을 격감시키기 위해 배기 시스템에 분리 구성된 촉매와 소음기를 일체형으로 형성한 것에 관한 것이다.The present invention relates to an automobile silencer integrated silencer, and more particularly, to an integrally formed catalyst and silencer integrated in the exhaust system in order to reduce the explosion noise and purification of the combustion gas discharged from the engine. .

일반적으로 자동차는 엔진 연소실내에서 연료와 공기의 혼합기를 연소시켜 여기서 생성된 열에너지를 기계적 에너지로 전환하여 동력을 얻는 것으로,In general, a car burns a mixture of fuel and air in an engine combustion chamber and converts thermal energy generated there into mechanical energy to obtain power.

엔진이 연소하면서 발생하는 배기 가스에는 유해성가스인 일산화탄소와 탄화수소 및 질소산화물과 무해성가스인 수증기, 이산화탄소가 혼합되어 배출된다.Exhaust gas generated by combustion of the engine is mixed with harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, and harmless gases such as water vapor and carbon dioxide.

이러한 연소 과정에서는 부산물인 배기 가스는 각종 유해 성분과 함께 고압 상태를 유지하며, 이를 바로 대기로 방출할 경우 대기오염은 물론 과다한 소음 발생의 원인이 되었다.In this combustion process, the by-product exhaust gas maintains a high pressure with various harmful components, and if it is immediately released into the atmosphere, it causes air pollution and excessive noise generation.

그리하여 자동차는 유해 가스성분을 정화하여 이산화탄소, 수증기, 산소 및 질소와 같은 무해가스로 환원하여 대기중에 방출하는 정화 장치를 구비하는데,Thus, automobiles are equipped with a purification device that purifies harmful gas components, reduces them to harmless gases such as carbon dioxide, water vapor, oxygen and nitrogen, and releases them into the atmosphere.

이러한 정화 장치(10)는 도 2에서와 같이 내방에 촉매(11)와 매트(12)를 설치한 쉘(13)이 구비되고, 상기 쉘(13)의 양측에는 배기가스 유입을 위한 유입구(14)와 정화된 배기가스를 머플러등으로 방출하기 위한 배출구(15)를 가지는 엔드콘(16)이 연결 구성된다.The purification device 10 is provided with a shell 13 provided with a catalyst 11 and a mat 12 inward as shown in FIG. 2, and both sides of the shell 13 have an inlet 14 for exhaust gas inflow. ) And an end cone 16 having a discharge port 15 for discharging the purified exhaust gas to a muffler or the like.

상기 엔드콘(16)은 아웃 엔드콘(17)과 인너 엔드콘(18)으로 구성되며, 인너 엔드콘(18)은 촉매(11)를 지지하는 매트(12)가 배기가스에 의하여 부식되는 것을 방지하면서 내부온도를 저감시킬 수 있도록 설치된다.The end cone 16 is composed of the out end cone 17 and the inner end cone 18, the inner end cone 18 is the mat 12 supporting the catalyst 11 is corroded by the exhaust gas. It is installed to reduce the internal temperature while preventing.

또한 정화 장치(10)를 거쳐 유해 물질을 제거한 배기 가스의 온도와 압력을저하시켜 급격한 팽창에 따른 소음을 저감시키는 소음기(20)가 장착되는데,In addition, the silencer 20 is installed to reduce the noise due to rapid expansion by reducing the temperature and pressure of the exhaust gas from which the harmful substances have been removed through the purification device 10.

이러한 소음기는 원통형을 비롯한 다양한 외형을 가지는 몸체와 그 내방으로 다수 개의 격판과 파이프를 배열한 후 흡음재를 충진하여 구성한다.Such a silencer is configured by filling a sound absorbing material after arranging a plurality of diaphragms and pipes into a body having various shapes including a cylinder and its inner side.

이상과 같이 배기 시스템(1)에 장착된 정화 장치(10) 및 소음기(20)는 적용 차종에 따라 그 장착 구성을 달리하는데, 대부분 도 1에서와 같이 초기 냉간 시동시 저온의 배기 가스를 정화하기 위한 1차 정화 장치(10')가 엔진에 최대한 근접 구성되며,As described above, the purification apparatus 10 and the silencer 20 mounted on the exhaust system 1 vary their mounting configurations depending on the applied vehicle type. In most cases, as shown in FIG. Primary purification device for 10 'is configured as close as possible to the engine,

그 후방으로 배기 가스의 온도가 상승했을 때 정화 작업을 수행하는 메인 정화 장치(10)가 형성된다.The main purification apparatus 10 which performs a purification | cleaning operation | movement when the temperature of exhaust gas rises in the back is formed.

그리고, 메인 정화 장치(10) 후방에는 배기 가스 소음을 절감시키기 위해 레조네이터를 비롯한 테일 머플러인 소음기가 순차적으로 장착된다.And, in order to reduce the exhaust gas noise in the rear of the main purification device 10, a muffler, which is a tail muffler including a resonator, is sequentially installed.

상기와 같이 배기 가스의 정화 및 소음 절감을 위해서는 2개의 정화 장치와 2개의 소음기가 요구되며,As described above, two purification devices and two silencers are required to purify exhaust gas and reduce noise.

이러한 배기 시스템(1)은 구성 부품의 복잡 다양성으로 인해 과다한 가공 공정과 조립 공정으로 생산성 및 생산 단가가 상승을 초래하여 경제성이 저하되는 문제점을 안고 있었다.The exhaust system 1 has a problem in that economic efficiency is lowered due to an increase in productivity and production cost due to an excessive processing process and an assembly process due to the complex diversity of components.

뿐만 아니라, 엔진에 근접 장착되는 1차 정화 장치는 배기 가스의 온도 상승시 가혹 조건에 노출되어 운전 중 불량 발생을 유발하거나 원활한 정화 작용을 수행하지 못하였다.In addition, the primary purification device mounted close to the engine is exposed to harsh conditions when the temperature of the exhaust gas rises, causing failure during operation, or failing to perform a smooth purification operation.

그리고, 배기 가스가 배출되면서 2개의 정화 장치와 2개의 소음기를 거치면서 팽창과 압축이 반복되어 불규칙한 배기압으로 인한 과다한 배기 저항을 초래하여 자동차 출력 저하의 직접적인 요인으로 작용하였다.In addition, as the exhaust gas is discharged, the expansion and compression are repeated through two purifiers and two silencers, causing excessive exhaust resistance due to irregular exhaust pressure, which acts as a direct factor in reducing the vehicle output.

이에 본 발명은 상기한 여러 가지 문제점을 해결하기 위해 창출된 것으로 엔진과 원접한 거리에 정화 장치와 소음기를 일체로 형성하여 구성의 간소화를 통한 생산 단가 절감 및 원활한 배기 효율을 통한 출력 상승을 그 목적으로 한다.Therefore, the present invention was created to solve the above-mentioned problems, and the purifying device and the silencer are integrally formed at a distance away from the engine to reduce the production cost and simplify the output through a simplified configuration. It is done.

도 1은 일반적인 자동차용 배기 시스템을 도시한 간략 전체 구성도,1 is a simplified overall configuration diagram showing a general automotive exhaust system,

도 2는 종래 기술이 적용된 자동차용 배기 가스 정화 장치를 도시한 간략 단면도,2 is a simplified cross-sectional view showing a vehicle exhaust gas purification apparatus to which the prior art is applied;

도 3은 본 발명이 적용된 자동차 배기 시스템을 도시한 간략 구성도,3 is a simplified configuration diagram showing an automobile exhaust system to which the present invention is applied;

도 4는 본 발명의 요부인 자동차용 배기 가스 정화 장치 일체형 소음기를 도시한 전체 단면도,4 is an overall cross-sectional view showing the silencer integrated silencer for automobile exhaust gas which is the main part of the present invention;

도 5는 본 발명인 자동차용 배기 가스 정화 장치 일체형 소음기의 선, 후 촉매의 작용 상태를 도시한 흐름도.Figure 5 is a flow chart showing the action state of the pre- and post-catalyst of the present invention vehicle exhaust gas purifier integrated silencer.

*도면의 주요 부분에 사용된 부호의 설명** Description of the symbols used in the main parts of the drawings *

3;정화 장치 일체형 소음기30;하우징3; purifying device integrated silencer 30; housing

32;선(先) 촉매33;주(主) 촉매32; precatalyst 33; master catalyst

34;후(後) 촉매35;매트34; after catalyst 35; mat

이하 첨부되는 도면과 관련하여 본 발명의 구성 및 작용에 대하여 설명하면 다음과 같다.Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

도 3은 본 발명이 적용된 자동차 배기 시스템을 도시한 간략 구성도, 도 4는 본 발명의 요부인 자동차용 배기 가스 정화 장치 일체형 소음기를 도시한 전체 단면도, 도 5는 본 발명인 자동차용 배기 가스 정화 장치 일체형 소음기의 선, 후 촉매의 작용 상태를 도시한 흐름도로서 함께 설명한다.Figure 3 is a simplified configuration diagram showing an automobile exhaust system to which the present invention is applied, Figure 4 is an overall cross-sectional view showing a silencer integrated silencer for automobiles which is the main part of the present invention, Figure 5 is a vehicle exhaust gas purification apparatus for the present invention The operation states of the pre- and post-catalyst of the integrated silencer will be described together as a flowchart.

상기와 같은 목적을 달성하기 위한 본 발명인 자동차용 배기 가스 정화 장치 일체형 소음기(3)는 도 4에서와 같이Automotive exhaust gas purification device integrated silencer 3 of the present invention for achieving the above object is as shown in FIG.

그 형상이 개략 원통형으로 양측 가장 자리에는 배기 가스의 유입과 배출을 위해 원추형의 엔드콘(31)을 장착한 하우징(30)과,Its shape is roughly cylindrical and at both edges of the housing 30 is mounted with a conical end cone 31 for the inflow and exhaust of exhaust gas,

하우징(30) 내방에는 배기 가스의 정화와 소음 절감을 위한 촉매(32,33,34)가 배기 가스 진행 방향에 대하여 다단계로 장착된다.Inside the housing 30, catalysts 32, 33, and 34 for purifying exhaust gas and reducing noise are mounted in multiple stages with respect to the exhaust gas traveling direction.

또한 상기 촉매(32,33,34)와 하우징(30) 상간에는 유리 섬유(fiber glass)혹은 철망으로 형성된 매트(mat;35)를 더 구비하여 소음 경감과 외부 충격으로부터 촉매(32,33,34) 손상을 방지하도록 한다.In addition, between the catalyst (32, 33, 34) and the housing 30, a mat (35) formed of fiber glass or wire mesh is further provided to reduce the noise and impact from the external impact (32, 33, 34) ) To prevent damage.

상기와 같이 하우징(30) 내방에 배기 가스의 진행 방향에 대하여 다단계로 구비되는 촉매(32,33,34)는 3단계로 구성되는데,As described above, the catalysts 32, 33, and 34, which are provided in multiple stages with respect to the traveling direction of the exhaust gas in the housing 30, are configured in three stages.

배기 가스 유입구(36)와 근접한 부위에 배치되며 냉간 시동시 생성되는 저온의 배기 가스에 대하여 정화 및 소음 절감 작업을 수행하기 위해 기공이 큰 세라믹 담체로서 형성되는 선(先)촉매(32)와,A pre-catalyst 32 disposed in the vicinity of the exhaust gas inlet 36 and formed as a ceramic carrier having large pores to perform purification and noise reduction operations for the low-temperature exhaust gas generated during cold start,

상기 선 촉매(32)와 일정 거리 이격된 후방으로 선 촉매(32)에 비하여 조밀한 기공을 가지는 세라믹 담체의 주(主)촉매(33)가 하우징(30) 중앙부에 걸쳐 형성되며,The main catalyst 33 of the ceramic carrier having dense pores compared with the precatalyst 32 to the rear spaced apart from the precatalyst 32 by a predetermined distance is formed over the center of the housing 30,

주 촉매(33)와 일정 거리 이격되며 배기 가스 배출구(37)와 인접한 부위에 선 촉매(32)와 같이 기공이 큰 세라믹 담체를 이용하되 선 촉매(32)에 비하여 면적을 다소 크게 형성한 후(後) 촉매(34)로 구성된다.After using a ceramic carrier having a large pore such as the precatalyst 32 at a portion spaced apart from the main catalyst 33 and adjacent to the exhaust gas outlet 37, the area is somewhat larger than that of the precatalyst 32 ( Iii) a catalyst 34.

상기와 같이 3단계로 구성된 촉매중 선, 후 촉매(32,34)는 도 5에서와 같이 배기 가스가 접촉하는 부위에 백금과 같은 귀금속 분말을 더 도포하여,Among the catalysts composed of three stages as described above, the pre- and post-catalysts 32 and 34 are further coated with a precious metal powder such as platinum on the contact portion of the exhaust gas as shown in FIG.

화학 반응에 의한 배기 가스 온도를 증가시켜 냉간 시동 또는 주 촉매를 통과한 배기 가스의 잔류 유해 성분을 정화하여 정화 효율 상승을 도모한다.The exhaust gas temperature caused by the chemical reaction is increased to purify the residual harmful components of the exhaust gas which has passed through the cold start or the main catalyst to increase the purification efficiency.

그리하여 저온 고소음의 배기 가스가 선, 후 촉매(32,34)를 통과할 시점에는 고온 저소음의 배기 가스로 상태 변화하여 배출되도록 한다.Thus, when the low-temperature, high-noise exhaust gas passes through the pre- and post-catalysts 32 and 34, the state changes to the high-temperature, low-noise exhaust gas to be discharged.

상기와 같이 구성된 본 발명의 작용 상태를 종래 기술의 문제점과 비교하여설명하면 다음과 같다.Referring to the operational state of the present invention configured as described above compared with the problems of the prior art as follows.

먼저, 본 발명인 정화 장치 일체형 소음기(3)는 도 3에서와 같이 전체 배기 시스템 가운데 엔진에서 일정 거리를 유지한 부위에 장착된다.First, the purifier integrated silencer 3 of the present invention is mounted at a portion of the entire exhaust system that maintains a certain distance from the engine.

상기와 같이 엔진과 일정 거리 이격된 부위에 장착된 정화 장치 일체형 소음기(3)는 엔진의 초기 시동인 냉간 시동시 저온의 배기 가스를 고온으로 상태 변화하여 주 촉매(33)에 의한 원활한 정화 작용이 이루어지도록 하는데,As described above, the purification device-integrated silencer 3 mounted at a portion spaced from the engine is changed to a state of low-temperature exhaust gas at a high temperature during cold start, which is an initial start of the engine, so that a smooth purifying action by the main catalyst 33 is achieved. To make it happen,

이는 선 촉매(32)에 도포된 귀금속재가 저온 배기 가스와 화학 반응하면서 약 100℃에 이르는 고온으로 상승시킴으로서 가능하다.This is possible by raising the noble metal material applied to the precatalyst 32 to a high temperature of about 100 ° C while chemically reacting with the low temperature exhaust gas.

상기와 같은 선 촉매(32)는 저온 배기 가스의 온도 상승과 정화 작용은 물론 큰 기공을 통한 소음 절감 작용도 동시에 수행하여, 선 촉매(32)를 통과하는 배기 가스는 저온 고소음 상태에서 고온 저소음 상태로 변화되어 이송한다.The pre-catalyst 32 as described above performs the temperature rise and purification of the low-temperature exhaust gas at the same time as well as the noise reduction effect through the large pores, the exhaust gas passing through the pre-catalyst 32 is a high temperature and low noise in a low temperature high noise state It is changed to a state and transferred.

상기와 같이 선 촉매(32)에 의해 상태 변화된 배기 가스는 주 촉매(33)로 유입되어 각종 유해 물질을 여과하는 정화 과정을 거치게 되는데,As described above, the exhaust gas changed in state by the precatalyst 32 enters the main catalyst 33 and undergoes a purification process for filtering various harmful substances.

이 때 유입되는 배기 가스가 냉간 시동에 따른 저온일 경우는 선 촉매(32)에 의한 예열 과정을 거쳐 주 촉매의 정상 작동 온도에 근접시켜 정화 성능 향상을 이룰 수 있어 저온과 고온 배기 가스에 적절히 대응할 수 있다.At this time, when the inflow exhaust gas is at a low temperature due to cold start, the preliminary preheating process of the pre-catalyst 32 can be used to approach the normal operating temperature of the main catalyst, thereby improving the purification performance. Can be.

상기와 같이 선 촉매(32)와 주 촉매(33)를 거쳐 유해 물질과 소음을 격감시킨 배기 가스는 후 촉매(34)를 통하여 다시 한 번 더 소음 격감과 유해 물질 정화 작용을 거쳐 최종적으로 외방에 배출된다.Exhaust gas that has reduced harmful substances and noise through the pre-catalyst 32 and the main catalyst 33 as described above is further reduced noise and harmful substance purification through the catalyst 34, and finally to the outside. Discharged.

이와 같이 정화 장치 일체형 소음기(30)는 배기 가스의 정화와 소음 격감을짧은 구간과 단시간에 걸쳐 수행함으로서 배기 저항 감소에 따른 원활한 배기 작용을 통하여 엔진 출력을 향상 시킬 수 있다.As such, the purification device-integrated silencer 30 may improve the engine output through a smooth exhaust action according to the exhaust resistance reduction by performing purification of the exhaust gas and reducing the noise over a short period and a short time.

이와 같이 정화 장치와 소음기를 일체로 형성함은 종래 정화 장치와 소음기를 분리 구성함으로서 야기되는 원가 상승과 조립 공정 증가 및 배기 저항에 따른 엔진 출력 저하등의 문제점을 해결할 수 있다.As such, forming the purifier and the silencer integrally solves problems such as cost increase, assembly process increase, and engine output decrease due to exhaust resistance caused by separating and configuring the conventional purifier and the silencer.

이상과 같은 본 발명인 자동차용 배기 가스 정화 장치 일체형 소음기는 정화 장치와 소음기를 일체로 형성하여 구성의 간소화를 통한 원가 절감 효과는 물론, 조립 공정 감소를 통한 생산성 향상을 이룰 수 있으며 취급이 용이한 유용한 발명이다.The exhaust gas purifier integrated silencer for automobiles according to the present invention as described above can form a purifier and a silencer integrally to achieve cost savings through the simplification of the configuration, as well as to improve productivity through a reduction in the assembly process, and are easy to handle. Invention.

Claims (3)

형상이 개략 원통형으로 양측 가장 자리에는 배기 가스의 유입과 배출을 위해 원추형의 엔드콘(31)을 장착한 하우징(30)과, 그 내방으로 배기 가스의 정화를 위한 촉매와 하우징(30)과 촉매 상간에 개재되어 소음 경감 및 촉매를 보호하는 매트(35)로 구성된 자동차용 정화 장치에 있어서;A cylindrical shape is roughly formed on both edges of the housing 30 having a conical end cone 31 for inflow and exhaust of exhaust gas, and a catalyst for purifying the exhaust gas into the inside thereof, and a housing 30 and a catalyst. An automobile purifying device comprising a mat 35 interposed between phases to reduce noise and protect a catalyst; 상기 촉매(32,33,34)를,The catalyst (32, 33, 34), 배기 가스 유입구(36)와 근접한 부위에 배치되며 기공이 큰 세라믹 담체로 구비되는 선(先)촉매(32)와,A pre-catalyst 32 disposed at a portion adjacent to the exhaust gas inlet 36 and provided with a large ceramic carrier; 상기 선 촉매(32)와 일정 거리 이격된 후방으로 조밀한 기공을 가지며 하우징(30) 중앙부에 구비되는 세라믹 담체의 주(主)촉매(33);A main catalyst 33 of a ceramic carrier having dense pores rearwardly spaced from the precatalyst 32 and provided in the center of the housing 30; 상기 주 촉매(33)와 일정 거리 이격되며 배기 가스 배출구(37)와 인접한 부위에 기공이 큰 세라믹 담체로 구비하는 후(後) 촉매(34)로 구성하는 것을 특징으로 하는 자동차용 배기 가스 정화 장치 일체형 소음기.An exhaust gas purifying apparatus for automobiles, comprising a post catalyst 34 spaced apart from the main catalyst 33 by a predetermined distance and provided as a ceramic carrier having large pores in a portion adjacent to the exhaust gas outlet 37. Integral silencer. 제 1 항에 있어서;The method of claim 1; 상기 선, 후 촉매(32,34)는 배기 가스가 접촉하는 부위에 귀금속 분말을 더 도포하는 것을 특징으로 하는 자동차용 배기 가스 정화 장치 일체형 소음기.The pre- and post-catalyst 32, 34 is an automobile silencer exhaust gas purifier integrated silencer, characterized in that to further apply a noble metal powder to the contact area of the exhaust gas. 제 2 항에 있어서;The method of claim 2; 상기 선, 후 촉매(32,34)에 도포되는 귀금속 분말은 백금인 것을 특징으로 하는 자동차용 배기 가스 정화 장치 일체형 소음기.The exhaust gas purifier integrated silencer for automobiles, wherein the precious metal powder applied to the front and rear catalysts (32, 34) is platinum.
KR1020010022301A 2001-04-25 2001-04-25 Catalytic converter for vehicle KR20020083033A (en)

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JPH03210008A (en) * 1990-01-10 1991-09-13 Babcock Hitachi Kk Diesel exhaust gas processor
JPH0450421A (en) * 1990-06-20 1992-02-19 Hino Motors Ltd Exhaust gas purifying device used for diesel engine
JPH0610652A (en) * 1992-06-24 1994-01-18 Isuzu Motors Ltd Exhaust gas emission control device for diesel engine
JPH0749026A (en) * 1991-09-04 1995-02-21 Gavoni Bgm Silenziatori Di Albino Gavoni & Co Sas Silencer incorporated into catalytic converter of internal combustion engine
EP1211393A1 (en) * 2000-11-22 2002-06-05 O-DEN Corporation Diesel particulate removing apparatus

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JPS6056115A (en) * 1983-09-08 1985-04-01 Bridgestone Corp Fine particle purifier for exhaust gas of diesel-engine
JPH03210008A (en) * 1990-01-10 1991-09-13 Babcock Hitachi Kk Diesel exhaust gas processor
JPH0450421A (en) * 1990-06-20 1992-02-19 Hino Motors Ltd Exhaust gas purifying device used for diesel engine
JPH0749026A (en) * 1991-09-04 1995-02-21 Gavoni Bgm Silenziatori Di Albino Gavoni & Co Sas Silencer incorporated into catalytic converter of internal combustion engine
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101381827B1 (en) * 2012-11-27 2014-04-04 주식회사 파나시아 Exhaust gas denitrifing reactor and the exhaust gas denitrifing system
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