KR19990073040A - Soot reduction filter of diesel vehicle. - Google Patents
Soot reduction filter of diesel vehicle. Download PDFInfo
- Publication number
- KR19990073040A KR19990073040A KR1019980054571A KR19980054571A KR19990073040A KR 19990073040 A KR19990073040 A KR 19990073040A KR 1019980054571 A KR1019980054571 A KR 1019980054571A KR 19980054571 A KR19980054571 A KR 19980054571A KR 19990073040 A KR19990073040 A KR 19990073040A
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- ball
- particulate matter
- exhaust gas
- chamber
- collected
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Classifications
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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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
- F01N3/0224—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being granular
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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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/16—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric heater, i.e. a resistance heater
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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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/14—Exhaust treating devices having provisions not otherwise provided for for modifying or adapting flow area or back-pressure
Abstract
현재 디젤자동차의 배기가스 처리장치에 사용되고 있는 필터는 몇가지로 크게 나누어지고 있으나 그중 가장 각광을 받고 있는 것은 벽을 이용하는 방식의 하니컴(WALL HONEYCOMB MONOLITH)과 세라믹 화이버를 이용한 필터 방법이다.Currently, the filter used in the exhaust gas treatment device of diesel vehicles is divided into several categories, but the most popular among them is the filter method using WALL HONEYCOMB MONOLITH and ceramic fiber.
이 필터에 포집된 입자상 물질을 제거시키는 방법에 따라 버너(BURNER), 전기히터(ELECTRIC)등을 이용한다.BURNER, ELECTRIC, etc. are used according to the method of removing the particulate matter collected by this filter.
이때 재생과정에서 내열성, 내구성 등의 문제로 파손이 일어나고, 입자상 물질 발생률이 탄화율보다 높은 경우에는 필터의 미세기공를 막아 축적이 발생하며, 과축척 상태에서 배합이 증가되어 폐기공을 만들어 필터의 사용주기를 짧게한다.At this time, damage occurs in the regeneration process due to heat resistance, durability, etc., and if the particle generation rate is higher than the carbonization rate, accumulation occurs by blocking the micropores of the filter. Shorten the cycle.
이렇게 재생과정에서 과축척된 입자상 물질은 열 발생량이 많아 열충격에 의한 균열을 만들며 파손으로 연결되는 단점이 있다.Particles over-scaled during the regeneration process have a large amount of heat generation, which causes cracks due to thermal shock and leads to breakage.
본 발명의 장치는 배기가스와 함께 배출되는 입자상 물질을 미세다공의 극대화된 여과면적을가진 볼(BALL) 형태의 촉매제를 이용하여, 촉매제를 접촉하면 배기가스는 정화된 배기가스 성분이 배출되고, 함께 배출된 입자상 물질은 흡착성질을 이용하여 여과면적이 극대화된 볼 표면에 입자상 물질을 머무르게하고 서로 결합하게하여 입자의 크기를 크게 만들어 놓는다.The apparatus of the present invention uses a catalyst in the form of a ball having a maximal filtration area of microporous particulate matter discharged with the exhaust gas, and when the catalyst is contacted, the exhaust gas is discharged from the purified exhaust gas component, The particulate matter discharged together uses the adsorbent to keep the particulate matter on the ball surface where the filtration area is maximized and to bind to each other to make the particle size larger.
이렇게 결합된 입자상 물질은 운행중인 차체의 흔들림과 엔진에서 발생한는 맥동 흐름에 의해 볼은 움직이고, 볼의 움직임으로 볼 표면의 입자상 물질은 아래쪽으로 낙하하여 모아지고, 모아진 입자상 물질은 전기히터를 이용하여 600℃ 이상의 온도로 연소처리하여 배기가스와 입자상 물질의 서로 다른 특성을 이용한 고효율 여과장치이다.The combined particulate matter is moved by the pulsation flow generated by the moving body and the pulsation flow generated by the engine.The particulate matter on the surface of the ball is collected by falling downward, and the collected particulate matter is collected by using an electric heater. It is a high-efficiency filtration device using different characteristics of exhaust gas and particulate matter by combustion treatment at temperature above ℃.
Description
산업발달에 따라 유류 및 화석연료, 연소보일러, 제철, 제강, 시멘트제조 및 폐기물소각공정등의 각종 연소, 생산, 제조공정에서 불가피하게 발생되고 있는 미세먼지 오염물질은 대기오염의 주종을 이루면서 인간에게 상당한 피해를 미치고 있다.According to industrial development, fine dust pollutants that are inevitably generated in various combustion, production, and manufacturing processes such as oil, fossil fuel, combustion boiler, steelmaking, steelmaking, cement manufacturing, and waste incineration processes are mainly made of air pollution. There is considerable damage.
그런데 80년대 후반에 들어와 급격히 증가한 자동차는 전국토를 주차장화 하면서 많은 오염물질을 배출하여 대기오염의 문제를 더욱더 가중시키고 있다.However, the rapid increase of automobiles in the late 80's has increased the problem of air pollution by emitting a lot of pollutants while parking the whole country.
자동차에서 배출되는 오염물질은 대기중의 질소산화물과 오존농도 및 미세한 부유먼지 농도를 증가시켜 대기오염의 패턴을 바꾸어 놓았다.Pollutants emitted from automobiles have changed the pattern of air pollution by increasing the concentration of nitrogen oxides and ozone in the atmosphere and fine suspended dust concentrations.
즉 대기오염의 주범이 산업현장이나 난방연료와 같은 고정배출원에서 자동차와 같은 이동배출원으로 바꾸어진 것이다.In other words, the main cause of air pollution has changed from fixed sources such as industrial sites or heating fuels to mobile sources such as automobiles.
90년대 이후 매년 100만대씩 급격하게 증가하는 자동차의 배출가스를 엄격하게 규제함에도 불구하고 자동차에 의한 도시 대기오염은 천체적으로 개선될 기미를 보이지 않고있으며, 부유먼지의 배출량은 계속적으로 증가하여 국민건강을 위협하고 있는 실정이다.Despite severe restrictions on automobile emissions, which have increased rapidly by one million vehicles every year since the 1990s, urban air pollution by automobiles shows no signs of improving astronomically. The situation is threatening health.
따라서 자동차의 배기가스와 함께 배출되는 유해물질을 근본적으로 처리하기 위해서 본 발명의 장치는 대기오염의 문제를 경제적이고 효과적으로 줄일 수 있다.Therefore, the apparatus of the present invention can economically and effectively reduce the problem of air pollution in order to fundamentally treat the harmful substances discharged together with the exhaust gas of the automobile.
본 발명은 디젤자동차의 배출가스 및 입자상 물질을 연소 여과처리에 관한 것으로 특히 디젤자동차에서 배출되는 배기가스를 촉매제의 반응을 통해 정화된 배기가스를 배출하고 배기가스에 포함된 입자상물질은 볼 표면에 부착시켜 비중을 높여 운행중의 흔들림과 엔진에서 발생하는 맥동 흐름을 이용하여 볼을 움직여서 입자상물질을 아래쪽 호퍼로 모이게 하고 모아진 입자상 물질은 전기히터를 사용하여 연소처리하는 여과장치에 관한 것이다.The present invention relates to a combustion filtration process for exhaust gas and particulate matter of a diesel vehicle. Particularly, the exhaust gas, which is emitted from a diesel vehicle, is discharged through the reaction of a catalyst, and the particulate matter contained in the exhaust gas is disposed on a ball surface. It is related to a filtration apparatus which moves the ball by using the vibration during operation and the pulsating flow generated from the engine to raise the specific gravity to attach the particles to the lower hopper, and the collected particulate matter is burned by using an electric heater.
일반적으로 디젤엔진의 배기가스 특성은 공연비가 크고, 일산화탄소(Co) 및 탄화수소(HC)의 배출이 적으며 압축비가 크므로 소음과 진동이 심하고 질소산화물(NOx), 황산화물(SOx)의 생성이 많으며, 배출가스중에는 매연(SMOKE)을 포함한 입자상 물질이 많다.In general, the exhaust gas characteristics of diesel engines are high in air-fuel ratio, low in emissions of carbon monoxide (Co) and hydrocarbons (HC), and high in compression ratio, resulting in high noise and vibration, and the generation of NOx and SOx. Many exhaust gases contain particulate matter, including SMOKE.
특히 입자상물질은 스폰지 형태의 탄소입자로 많은 독성 화학물질을 포함하고 있으며 0.1㎛~0.3㎛의 매우 작은 크기의 입자가 분포를 이루며 흡착성이 강하고, 작고 가볍기 때문에 공기중에 오랫동안 떠돌아 다닌다.Particulate matter, in particular, is a sponge-like carbon particle, which contains many toxic chemicals, and has a very small particle size of 0.1 μm to 0.3 μm.
이러한 디젤엔진에서 배출되는 유해성분을 감소시키기 위하여 필터를 사용하는데 그중 각광받고 있는 것은 벽을 이용하는 하니컴과 세라믹 화이버를 이용한 필터포집방법이다.In order to reduce harmful components emitted from diesel engines, a filter is used. Among them, a filter collection method using a honeycomb using a wall and a ceramic fiber is used.
이 필터 포집방법은 입자상 물질을 제거시키는 방식에 따라 버너, 전기히터, 연료 첨가제등을 이용하는데 이때 재생과정에서 내열성(열충격), 내구성 등의 문제로 인한 균열이 발생하므로 파손이 일어나 필터로써 기능을 상실하는 단점이 있다.This filter collection method uses burners, electric heaters, and fuel additives according to the method of removing particulate matter. At this time, cracks are generated due to problems such as heat resistance (heat shock) and durability in the regeneration process. There is a drawback to loss.
또한 입자상 물질이 미세다공 벽면에 의해 포집되나 미세다공에 쉽게 부착되어 미세다공을 폐쇄시키므로 통기성을 저하시키고, 입자상 물질의 축적, 막힘 현상으로 배압증가가 필터 사용주기를 짧게하며 재생과정에서 발생하는 발열로 인해 쉽게 파손으로 연결되는 단점이 있다.In addition, the particulate matter is collected by the microporous wall, but is easily attached to the micropore to close the micropores, which lowers the air permeability, and the increase in back pressure due to the accumulation and clogging of the particulate material shortens the cycle of the filter and generates heat generated during the regeneration process. Due to the disadvantage that easily leads to breakage.
본 발명은 상기와 같은 문제점을 감안하여 필터에 의한 여과방법이 아닌 미세다공형태의 볼(BALL) 충진물을 쳄버안에 채우고, 디젤자동차에서 발생되는 배기가스와 입자상물질의 특성을 이용하여 배기가스는 극대화된 여과면적의 표면과 미세다공의 볼을 통과하면서 촉매제에 의해 정화된 가스가 배출되고, 매우 작은 크기의 입자상 물질은 흡착성질을 이용하여 볼 표면에 머무르게하여 서로 결합하게하고 입자의 크기를 크게 만들어 운행중의 흔들림과 엔진에서 발생하는 맥동 흐름을 이용하여 볼을 움직여서 볼의 표면에 붙어 있는 입자상 물질을 아래쪽 호퍼로 모이게하고 전기히터를 사용하여 연소 처리하는 장치이므로 재생과정에서도 내열성, 내구성 등에 문제가없고, 파손될 우려가 없으며, 볼과 볼 사이, 볼의 기공으로 배기가스가 흐르므로 배압의 증가없이 일정배압을 유지하여 반 영구적인 사용이 가능하다.In view of the above problems, the present invention fills a microporous ball filling material in a chamber rather than a filtration method by a filter, and maximizes exhaust gas by using characteristics of exhaust gas and particulate matter generated in a diesel vehicle. The gas purified by the catalyst is discharged while passing through the surface of the filtered filtration area and the microporous ball, and very small particulate matter stays on the surface of the ball by using an adsorbent to bind to each other and make the particle size larger. It is a device that collects particulate matter attached to the surface of the ball to the lower hopper by using the shaking and the pulsating flow generated from the engine to the bottom hopper and burns it by using an electric heater. There is no risk of damage and exhaust gas flows between the balls and the pores of the balls. Maintaining a constant back pressure, without an increase in the possible use of semi-permanent.
도 1은 본 발명장치의 일부 참고 사시도1 is a partial reference perspective view of the present invention device
도 2는 본 발명장치의 요부 발체 참고 사시도Figure 2 is a perspective view of the main body body of the present invention
도 3은 본 발명장치의 단면도3 is a cross-sectional view of the apparatus of the present invention.
도 4는 본 발명장치의 측면도4 is a side view of the present invention device
[도면의 주요 부분에 대한 부호의 설명][Description of Symbols for Main Parts of Drawing]
1. 케이싱 2. 인입가스 유도관 3. 전기히터1. Casing 2. Inlet gas induction pipe 3. Electric heater
4. 배기가스 유도관 5. 차단판 6. 미세공4. Exhaust gas guide pipe 5. Block plate 6. Fine hole
7. 볼 8. 호퍼 9. 미세공7. Ball 8. Hopper 9. Micropore
10. 미세공 11. 쳄버 12. 쳄버10. Micropore 11. Chamber 12. Chamber
본 발명의 바람직한 실시 예를 첨부된 도면에 의거하여 구체적이고 상세하게 설명하기로 한다.Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
통상의 형상으로 이루어진 케이싱(1)의 전방에서 (12), (11)쳄버 내부를 통과하여 인입가스 유도관(2)을 설치하고, 인입가스 유도관을 쳄버(12)에서 쳄버(11)로 통과하여 케이싱(1) 뒤쪽까지 빠져나온다.The inlet gas induction pipe 2 is installed from the front of the casing 1 having the usual shape through the chambers 12 and 11, and the inlet gas induction pipe is moved from the chamber 12 to the chamber 11. Pass through and out through the back of the casing (1).
상기 케이싱(1)에는 차단판(5)을 미세공(9)을 만들어 쳄버(11)에서 쳄버(12)쪽으로 배기가스를 유도 분산시켜 구획하고, 일정크기의 금속이나 세라믹 재질의 미세다공된 볼(7)을 쳄버(11)와 쳄버(12)에 채우고, 케이싱(1) 아래쪽 내부 경사부분 호퍼(8)에 전기히터(3)를 설치한다.In the casing (1), the blocking plate (5) is made of fine pores (9) and partitioned by inducing and dispersing exhaust gas from the chamber (11) to the chamber (12), the microporous ball of a metal or ceramic material of a certain size. (7) is filled in the chamber 11 and the chamber 12, and the electric heater 3 is installed in the inclined hopper 8 inside the casing 1 below.
이러한 본 발명의 장치에 대한 작용에 대하여 좀 더 구체적으로 설명되는 것에 의해 본발명의 장치를 좀 더 용이하게 이해 할 수 있게 된다.By explaining the operation of the device of the present invention in more detail, it is possible to more easily understand the device of the present invention.
즉, 디젤엔진에서 배출되는 배기가스는 인입가스 유도관(2)에 인입되어 쳄버(12)를 통과하여 쳄버(11)에서 배기가스를 방출시킨다.That is, the exhaust gas discharged from the diesel engine is introduced into the inlet gas induction pipe 2 and passes through the chamber 12 to release the exhaust gas from the chamber 11.
이때 방출은 쳄버(11)의 인입가스유도관(2)에 좌, 우에 미세공(6)을 이용하여 방출시키면 천천이 배기가스는 쳄버(11)에 채워진 볼(7)의 촉매제에 의해 대부분의 배기가스가 정화되어 쳄버(12)로 넘어가고 함께 배출된 입자상 물질은 쳄버(11)내에 채워진 볼(7)의 표면과 내부에 안착되며 지속적으로 배기되는 입자상 물질과 서로 결합하여 입자크기를 크게 만들고, 커진 입자는 운행중인 자동차의 흔들림과 엔진에서 발생하는 맥동 흐름이 볼(7)에 전달되어 표면과 내부에 안착된 입자상 물질은 아래쪽 호퍼(8)로 낙하시켜 모여지게하고, 모여지는 입자상 물질은 쳄버 아래쪽에 있는 전기히터(3)에 의해 연소되어 입자상 물질을 제거할 수 있으며, 일부 적은 양의 입자상 물질은 쳄버(12)로 이동하여 쳄버(12)안에 채워진 볼(7)의 여과면적에 의해 결합하고 아래쪽으로 낙하되어 전기히터(3)에 의해 완전 연소되어 정화된 배기가스가 미세공(10)로 들어가 배기가스유도관(4)을 통해 밖으로 정화된 배기가스를 방출할 수 있게 하였다.At this time, the discharge is discharged by using the micropores 6 on the left and right sides of the inlet gas induction pipe 2 of the chamber 11, and the transition gas is most of the catalyst by the ball 7 filled in the chamber 11. The exhaust gas is purified and passed to the chamber 12, and the particulate matter discharged together is seated on the surface and inside of the ball 7 filled in the chamber 11 and is combined with the particulate matter continuously exhausted to make the particle size larger. The larger particles are transferred to the ball (7) and the pulsating flow of the running car and the engine are transferred to the ball (7) so that the particulate matter falls on the lower hopper (8). It can be burned by an electric heater (3) below the chamber to remove particulate matter, and some small amounts of particulate matter are transferred to the chamber (12) by the filtration area of the ball (7) filled in the chamber (12). Combine and move downward The exhaust gas, which was dropped into the gas and completely combusted by the electric heater 3, went into the fine pores 10 and was discharged through the exhaust gas induction pipe 4 to discharge the purified exhaust gas.
이상 상기한 바와 같이 본 발명의 장치는 배기가스와 함께 배출되는 입자상 물질을 여과면적이 극대화된 미세다공 볼을 쳄버안에 채워 내열성, 내화학성, 내구성 등이 탁월하고, 균열이나 파손우려가 없으며, 특히 쳄버안에 배압이 증가할 염려가 없이 배기가스와 입자상 물질을 분리하여 정화시키는 방식으로 반 영구적으로 사용할 수 있어 배기가스 정화에 여과 효율을 높일 수 있게 되었다.As described above, the device of the present invention fills the microporous ball with the filtration area with the particulate matter discharged with the exhaust gas in the chamber, and is excellent in heat resistance, chemical resistance, durability, etc. It can be used semi-permanently by separating and purifying exhaust gas and particulate matter without fear of increasing the back pressure in the chamber, thereby improving the filtration efficiency for exhaust gas purification.
상기한 바와 같이 본 발명은 배기가스와 함께 배출되는 입자상 물질은 미세다공 볼형태의 촉매제를 이용하여 단위 체적당 접촉면적을 크게하여 배기가스를 정화하고, 입자상 물질의 담지량이 최대인 미세다공 볼은 입자상 물질을 서로 결합시켜 비중을 높이고 운전상태의 혼들림과 엔진에서 발생하는 맥동 흐름을 이용하여 볼을 움직여서 볼 표면에 붙은 입자상 물질을 아래쪽 호퍼로 모이게 하고 전기히터를 사용하여 충분히 모아진 입자상 물질을 지속적으로 연소시켜 입자상 물질의 양을 근본적으로 제거할 수 있게 되므로 디젤자동차에서 배출되는 유해 물질을 차단할 수 있다.As described above, in the present invention, the particulate matter discharged together with the exhaust gas is purged of exhaust gas by increasing the contact area per unit volume by using a catalyst in the form of a microporous ball, and the microporous ball having the largest supporting amount of particulate matter is By combining the particulate matter with each other, the specific gravity is increased and the ball is moved by using the pulsating flow generated from the engine and the driving state to collect the particulate matter attached to the ball surface to the lower hopper and continuously collect the particulate matter collected by using the electric heater. It is possible to fundamentally remove the amount of particulate matter by combustion in order to block harmful substances emitted from diesel vehicles.
또한 장치의 구조가 간단하고 장착이 용이하여 기존 Design의 변경없이 재 장착은 물론 현재 운행중인 차량에도 쉽게 부착하여 사용할 수 있어 디젤자동차의 배기가스와 입자상물질을 경제적이고 효과적으로 줄일 수 있어 매우 유용한 발명임이 명백하다.In addition, since the structure of the device is simple and easy to install, it can be easily reattached without changing the existing design and can be easily attached to the currently running vehicle, which is an extremely useful invention because it can economically and effectively reduce the exhaust gas and particulate matter of diesel vehicles. It is obvious.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980054571A KR100302873B1 (en) | 1998-12-12 | 1998-12-12 | Filtering device for reducing smoke of diesel automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980054571A KR100302873B1 (en) | 1998-12-12 | 1998-12-12 | Filtering device for reducing smoke of diesel automobile |
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| Publication Number | Publication Date |
|---|---|
| KR19990073040A true KR19990073040A (en) | 1999-10-05 |
| KR100302873B1 KR100302873B1 (en) | 2001-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980054571A KR100302873B1 (en) | 1998-12-12 | 1998-12-12 | Filtering device for reducing smoke of diesel automobile |
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| KR (1) | KR100302873B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100456870B1 (en) * | 2001-09-28 | 2004-11-10 | 현대자동차주식회사 | Post treatment exhaust contamination gas decreasing system having particles material separationd device in diesel engine |
| KR100820284B1 (en) * | 2006-11-22 | 2008-04-07 | 주식회사 크린어스 | Diesel particulate filter for diesel vehicles having cleaning ball for preventing plugging of diesel oxidation catalyst |
| US10054018B2 (en) | 2016-01-07 | 2018-08-21 | Hyundai Motor Company | Catalyzed particulate filter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913961A (en) * | 1995-06-26 | 1997-01-14 | Masaya Nagai | Automobile exhaust gas purifying device |
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1998
- 1998-12-12 KR KR1019980054571A patent/KR100302873B1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100456870B1 (en) * | 2001-09-28 | 2004-11-10 | 현대자동차주식회사 | Post treatment exhaust contamination gas decreasing system having particles material separationd device in diesel engine |
| KR100820284B1 (en) * | 2006-11-22 | 2008-04-07 | 주식회사 크린어스 | Diesel particulate filter for diesel vehicles having cleaning ball for preventing plugging of diesel oxidation catalyst |
| US10054018B2 (en) | 2016-01-07 | 2018-08-21 | Hyundai Motor Company | Catalyzed particulate filter |
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| Publication number | Publication date |
|---|---|
| KR100302873B1 (en) | 2001-12-17 |
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