KR20030082754A - Apparatus for regenerating diesel particulate filter using dual exhaust structure - Google Patents

Apparatus for regenerating diesel particulate filter using dual exhaust structure Download PDF

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Publication number
KR20030082754A
KR20030082754A KR1020020021225A KR20020021225A KR20030082754A KR 20030082754 A KR20030082754 A KR 20030082754A KR 1020020021225 A KR1020020021225 A KR 1020020021225A KR 20020021225 A KR20020021225 A KR 20020021225A KR 20030082754 A KR20030082754 A KR 20030082754A
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South Korea
Prior art keywords
diesel
exhaust
exhaust gas
pipe
temperature
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KR1020020021225A
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Korean (ko)
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권충일
김석재
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현대자동차주식회사
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Priority to KR1020020021225A priority Critical patent/KR20030082754A/en
Publication of KR20030082754A publication Critical patent/KR20030082754A/en

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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
    • 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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
    • 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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/06—Combinations of different methods of purification afterburning and filtering

Abstract

PURPOSE: An apparatus is provided to efficiently filter the particulate generated from a diesel engine vehicle, while reducing costs by raising the temperature of the exhaust gas through the use of a dual pipe. CONSTITUTION: An apparatus comprises a dual pipe(4) having a dual structure of an inner pipe and an outer pipe so as to prevent thermal losses for the exhaust gas emitted from an exhaust manifold; a diesel oxide catalyst unit(6) connected to the dual pipe, which raises the temperature of the exhaust gas emitted from the exhaust manifold; a diesel particulate filter(8) directly connected to the diesel oxide catalyst unit, which burns the particulate collected from the exhaust gas by the temperature of the exhaust gas raised by the dual pipe and the diesel oxide catalyst unit; and mufflers(12,16) for discharging the residual gas emitted from the diesel particulate filter.

Description

이중관 배기구조를 이용한 디젤 입자상물질 제거장치{Apparatus for regenerating diesel particulate filter using dual exhaust structure}Apparatus for regenerating diesel particulate filter using dual exhaust structure}

본 발명은 이중관 배기구조를 이용한 디젤 입자상물질 제거장치에 관한 것으로서, 보다 상세하게는 디젤엔진 차량으로부터 발생되는 입자상물질을 효율적으로제거하기 위한 이중관 배기구조를 이용한 디젤 입자상물질 제거장치에 관한 것이다.The present invention relates to a diesel particulate removal device using a double pipe exhaust structure, and more particularly to a diesel particulate removal device using a double pipe exhaust structure for efficiently removing particulate matter generated from a diesel engine vehicle.

주지된 바와 같이, 디젤엔진의 차량에서 발생되는 배출가스는 가솔린엔진의 차량과는 달리 산화질소(NOx)와 입자상물질(PM)이 상당히 많이 배출되도록 되어 있는 바, 현재에는 이러한 유해 배기가스의 감소를 위한 노력이 진행되는 상태이다.As is well known, the exhaust gas generated from a diesel engine vehicle, unlike a gasoline engine vehicle, is expected to emit a large amount of nitrogen oxides (NOx) and particulate matter (PM). Efforts are in progress.

디젤엔진의 유해 배기가스로서 배출되는 산화질소는 연소온도가 높은 경우에 발생하기 쉽기 때문에, 산화질소와 입자상물질은 서로 반비례관계가 되어 산화질소를 감소시키게 되면 입자상물질이 증가하고, 입자상물질을 감소시키면 산화질소가 증가하는 경향이 있다.Nitrogen oxides emitted as harmful exhaust gases of diesel engines are easily generated when the combustion temperature is high. Therefore, nitrogen oxides and particulate matter are inversely related to each other. When nitrogen oxides are reduced, particulate matter increases and particulate matter decreases. Nitrogen oxides tend to increase.

한편, 최근에는 이러한 입자상물질을 제거하기 위한 수단으로서 디젤 입자상물질 필터(DPF)가 이용되고 있는 바, 디젤 입자상물질 필터는 디젤엔진으로부터 배출되는 입자상물질을 필터 내에서 물리적으로 포집한 이후에 일정 온도 이상으로 승온하여 제거하기 위한 것이다.On the other hand, recently, the diesel particulate filter (DPF) has been used as a means for removing such particulate matter. The diesel particulate filter has a constant temperature after physically collecting particulate matter discharged from the diesel engine in the filter. It is for removing by heating up above.

그러나, 이러한 종래의 디젤 입자상물질 필터를 적용한 입자상물질의 제거수단은 필터 내에 포집된 입자상물질이 연소되는 온도가 550∼600℃ 이상이지만, 디질엔진의 특성상 배출되는 배기가스의 온도가 200∼300℃ 정도로 낮기 때문에 필터 내에 포집된 입자상물질의 연소가 용이하지 않게 되는 바, 이러한 배기가스의 온도를 상승시키기 위해 연료 후분사(Post Injection)나 별도의 연료 첨가제의 주입이 고려되고 있는 실정이다.However, the particulate matter removing means applying the conventional diesel particulate filter has a temperature at which the particulate matter trapped in the filter is burned at a temperature of 550 to 600 ° C or higher, but due to the characteristics of the diesel engine, the temperature of the exhaust gas discharged is 200 to 300 ° C. Due to the low level, the combustion of particulate matter trapped in the filter is not easy. In order to raise the temperature of the exhaust gas, fuel post injection or injection of a separate fuel additive is considered.

하지만, 배기가스의 온도를 상승시키기 위해 연료 후분사의 방식을 적용하면서 이를 제어하는 각종 장치를 구비하게 되면, 디젤엔진계의 시스템이 복잡하게 될 뿐만 아니라 잦은 연료 후분사에 의한 연비 및 출력효율의 저하가 초래된다는 문제점이 있다.However, if the fuel gas injection system is applied to increase the temperature of the exhaust gas and equipped with various devices for controlling the fuel gas, the system of the diesel engine system is not only complicated, but also the fuel efficiency and output efficiency caused by frequent fuel after injection. There is a problem that degradation occurs.

따라서, 본 발명은 상기한 종래의 사정을 감안하여 이루어진 것으로서, 그 목적은 디젤 산화촉매와 입자상물질 필터를 이중 배기계로서 적용하여 배기가스의 온도를 입자상물질의 연소에 필요한 온도로 상승시킴과 더불어, 배기계 파이프를 이중으로 하여 열손실을 최소화할 수 있도록 하는 이중관 배기구조를 이용한 디젤 입자상물질 제거장치를 제공하는 것이다.Accordingly, the present invention has been made in view of the above-described conventional circumstances, and an object thereof is to apply a diesel oxidation catalyst and a particulate matter filter as a dual exhaust system to raise the temperature of the exhaust gas to a temperature necessary for combustion of particulate matter, It is to provide a diesel particulate removal device using a double pipe exhaust structure to minimize the heat loss by double the exhaust pipe.

도 1은 본 발명에 따른 이중관 배기구조를 이용한 디젤 입자상물질 제거장치의 외관 구성을 나타낸 도면,1 is a view showing the external configuration of a diesel particulate matter removing apparatus using a double pipe exhaust structure according to the present invention,

도 2는 본 발명의 바람직한 실시예에 따라 디젤산화 촉매와 입자상물질 필터가 이중관 배기구조에 적용된 상태를 나타낸 도면,2 is a view showing a state in which a diesel oxidation catalyst and a particulate matter filter is applied to a double pipe exhaust structure according to a preferred embodiment of the present invention;

도 3은 본 발명에 적용되는 디젤 입자상물질 필터의 구조를 상세히 나타낸 도면이다.3 is a view showing in detail the structure of the diesel particulate filter applied to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of Symbols for Main Parts of Drawings>

2:배기 매니폴드, 4:이중 파이프,2: exhaust manifold, 4: double pipe,

6:디젤 산화촉매부, 8:디젤 입자상물질 필터,6: diesel oxidation catalyst, 8: diesel particulate filter,

10,14:배기 파이프, 12,16:머플러.10,14: exhaust pipe, 12, 16: muffler.

상기한 목적을 달성하기 위해 본 발명에 따르면, 디젤엔진 차량의 배기장치에 있어서, 배기 매니폴드로부터의 배기가스에 대한 열손실 방지를 위해 내부 파이프 및 외부 파이프의 이중구조를 갖는 이중 파이프와, 상기 이중 파이프와 연결되어 상기 배기 매니폴드로부터의 배기가스의 온도를 상승시키는 디젤 산화촉매부, 상기 디젤 산화촉매부와 직접 연결되어 상기 이중 파이프 및 디젤 산화 촉매부에 의해 상승된 배기가스의 온도에 의해 배기가스로부터 포집한 입자상 물질을 연소시키는 디젤 입자상물질 필터 및, 상기 디젤 입자상물질 필터로부터 배출되는 잔여 가스를 외부로 배출하는 머플러로 구성된 것을 특징으로 하는 이중관 배기구조를 이용한 디젤 입자상물질 제거장치를 제공한다.According to the present invention for achieving the above object, in the exhaust device of a diesel engine vehicle, a double pipe having a double structure of the inner pipe and the outer pipe to prevent heat loss to the exhaust gas from the exhaust manifold, and A diesel oxidation catalyst portion connected to the double pipe to raise the temperature of the exhaust gas from the exhaust manifold, and by the temperature of the exhaust gas directly connected to the diesel oxidation catalyst portion to be raised by the double pipe and the diesel oxidation catalyst portion It provides a diesel particulate removal device using a double-pipe exhaust structure, characterized in that it comprises a diesel particulate filter for burning particulate matter collected from exhaust gas, and a muffler for discharging residual gas discharged from the diesel particulate filter to the outside. do.

이하, 상기한 바와 같이 구성된 본 발명에 대해 첨부도면을 참조하여 상세히설명한다.Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

즉, 도 1은 본 발명에 따른 이중관 배기구조를 이용한 디젤 입자상물질 제거장치의 외관 구성을 나타낸 도면이다.That is, Figure 1 is a view showing the external configuration of the diesel particulate matter removing apparatus using a double pipe exhaust structure according to the present invention.

도 1에 도시된 바와 같이, 본 발명의 디젤 입자상물질 제거장치는 배기 매니폴드(2)가 이중 파이프(4)를 매개하여 디젤 산화촉매부(6)와 디젤 입자상물질 필터(8)로 형성되는 이중 배기계와 결합되어 있고, 상기 이중 배기계의 디젤 입자상물질 필터(8)는 제 1배기 파이프(10)를 매개로 제 1머플러(12)와 결합되어 있으며, 상기 제 1머플러(12)는 제 2배기 파이프(14)를 매개로 최종단의 제 2머플러(16)와 결합되어 있다.As shown in FIG. 1, in the diesel particulate removing device of the present invention, the exhaust manifold 2 is formed of a diesel oxidation catalyst part 6 and a diesel particulate filter 8 through a double pipe 4. It is coupled with the dual exhaust system, the diesel particulate filter 8 of the dual exhaust system is coupled with the first muffler 12 via the first exhaust pipe 10, the first muffler 12 is a second It is coupled with the second muffler 16 at the final stage via the exhaust pipe 14.

다음에, 도 2는 본 발명의 바람직한 실시예에 따라 디젤산화 촉매와 입자상물질 필터가 이중관 배기구조에 적용된 상태를 나타낸 도면이다.Next, FIG. 2 is a view showing a state in which a diesel oxidation catalyst and a particulate matter filter are applied to a double pipe exhaust structure according to a preferred embodiment of the present invention.

도 2에 도시된 바와 같이, 상기 이중 파이프(4)는 외부 파이프(4a)와 내부 파이프(4b)의 이중 구조로 이루어져 있는 바, 상기 배기 매니폴드(2)로부터 배출되는 배기가스가 외부 파이프(4a)와 내부 파이프(4b)에 의한 단열효과에 의해 열손실이 최소화 될 수 있고, 50℃ 이상으로 배기가스의 온도를 상승시켜서 배출시키게 된다.As shown in FIG. 2, the double pipe 4 has a double structure of the outer pipe 4a and the inner pipe 4b, and the exhaust gas discharged from the exhaust manifold 2 is the outer pipe ( The heat loss can be minimized by the heat insulation effect by the 4a) and the inner pipe 4b, and the exhaust gas is discharged by raising the temperature of the exhaust gas above 50 ° C.

상기 디젤 산화촉매부(6)는 상기 이중 파이프(4)를 통해 배출되는 배기가스의 온도를 상승시켜서 상기 디젤 입자상물질 필터(8)내에 포집된 입자상물질을 연소시킬 수 있는 환경을 형성한다.The diesel oxidation catalyst unit 6 raises the temperature of the exhaust gas discharged through the double pipe 4 to create an environment in which the particulate matter trapped in the diesel particulate filter 8 can be burned.

상기 디젤 입자상물질 필터(8)는 상기 이중 파이프(4)와 디젤 산화촉매부(6)를 통해 상승된 온도 환경에 따라 축적된 입자상물질을 연소시키게 된다.The diesel particulate filter 8 burns the particulate matter accumulated in the elevated temperature environment through the double pipe 4 and the diesel oxidation catalyst unit 6.

여기서, 상기 디젤 입자상물질 필터(8)는 디젤엔진의 배기가스 중에 포함된 입자상물질(Soot)을 물리적으로 포집하고, 그 입자상물질의 발화온도 이상으로 승온하여 제거할 수 있도록 되어 있는 것으로서, 도 3에 도시된 바와 같이 전 영역에 걸쳐서 다수의 셀(Cell)이 형성되어 있는데, 전면 배출구측에 셀플러그(Cell Plug)(20)가 배치되어 있는 제 1셀(22)과 후면의 입구측에 셀플러그(20)가 배치되어 있는 제 2셀이 상호 교번적으로 배치되어 전체적으로 벌집구조를 이루도록 되어 있다.Here, the diesel particulate filter 8 is to physically collect particulate matter (Soot) contained in the exhaust gas of the diesel engine, and to be removed by raising the temperature above the ignition temperature of the particulate matter, Figure 3 As shown in FIG. 2, a plurality of cells are formed over the entire area, and the first cell 22 having the cell plug 20 disposed on the front discharge side and the cell on the inlet side of the rear surface. The second cells in which the plugs 20 are arranged are alternately arranged to form a honeycomb structure as a whole.

상기 제 1셀(22)내로 유입되는 배기가스는 입자상물질(Soot)과 일산화탄소(CO) 및 탄화수소(HC)를 포함하고 있으며, 그 중에 입자상물질은 셀플러그(20)에 의해 배출구 측이 막혀있는 제 1셀(22) 내에 포집되지만, 일산화탄소와 탄화수소는 산소와 각각 화학반응을 일으켜서 물(H2O)과 이산화탄소(CO2) 형태로 제 2셀(24)을 통해 배출된다.The exhaust gas flowing into the first cell 22 includes particulate matter (Soot), carbon monoxide (CO), and hydrocarbons (HC), among which particulate matter is blocked by the outlet of the cell plug 20. Although collected in the first cell 22, carbon monoxide and hydrocarbons react with oxygen, respectively, and are discharged through the second cell 24 in the form of water (H 2 O) and carbon dioxide (CO 2 ).

여기서, 상기 제 1셀(22) 내에 포집된 입자상물질은 적정한 주기의 연료후분사와 더불어 이중 파이프(4)와 디젤 산화촉매부(6)를 통해 상승된 온도에 의해 연소되어 제거된다.Here, the particulate matter collected in the first cell 22 is burned and removed by the elevated temperature through the double pipe 4 and the diesel oxidation catalyst unit 6 together with proper post-fuel injection.

이어, 상기한 바와 같이 이루어진 본 발명의 작용에 대해 첨부도면을 참조하여 상세히 설명한다.Next, the operation of the present invention made as described above will be described in detail with reference to the accompanying drawings.

먼저, 디젤 차량의 디젤엔진으로부터 연소되어 배출되는 배기가스는 배기 매니폴드(2)로부터 이중 파이프(4)로 배출되는 바, 상기 이중 파이프(4)에서는 외부파이프(4a)와 내부 파이프(4b)의 이중구조로 되어 있어서 배기가스의 온도를 50℃ 이상으로 상승시켜서 통과시키게 된다.First, the exhaust gas, which is combusted and discharged from the diesel engine of a diesel vehicle, is discharged from the exhaust manifold 2 to the double pipe 4, and in the double pipe 4, the outer pipe 4a and the inner pipe 4b. The dual structure allows the temperature of the exhaust gas to rise above 50 ° C and allow it to pass through.

그 상태에서, 상기 이중 파이프(4)를 통과한 배기가스는 디젤 산화촉매부(6)로 유입되어 온도가 상승되고, 그 이중 파이프(4)를 통해 온도가 상승된 배기가스는 디젤 입자상물질 필터(8)로 배출된다.In this state, the exhaust gas passing through the double pipe 4 flows into the diesel oxidation catalyst unit 6 and the temperature is increased, and the exhaust gas whose temperature is raised through the double pipe 4 is a diesel particulate filter. Discharged to (8).

한편, 상기 디젤 입자상물질 필터(8)는 전면의 배출구에 셀플러그(20)가 배치되어 있는 다수의 제 1셀(22)을 통해 입자상물질(Soot)과 일산화탄소(CO) 및 탄화수소(HC)를 포함하는 배기가스를 유입받아 입자상물질(26)만을 포집하게 되고, 일산화탄소와 탄화수소가 산소와 화학반응을 수행하여 물과 이산화탄소의 형태로 제 2셀(24)을 통해 배출되도록 한다.Meanwhile, the diesel particulate filter 8 collects particulate matter (Soot), carbon monoxide (CO) and hydrocarbons (HC) through a plurality of first cells 22 in which the cell plug 20 is disposed at an outlet of the front surface. By receiving the exhaust gas included, only the particulate matter 26 is collected, and carbon monoxide and hydrocarbons are chemically reacted with oxygen to be discharged through the second cell 24 in the form of water and carbon dioxide.

상기 디젤 입자상물질 필터(8)를 통해 배출되는 이산화탄소를 포함하는 배기가스는 제 1 및 제 2머플러(12,16)를 통해 차량의 외부로 배출된다.Exhaust gas containing carbon dioxide discharged through the diesel particulate filter 8 is discharged to the outside of the vehicle through the first and second mufflers 12 and 16.

한편, 상기 디젤 입자상물질 필터(8)에 구비된 다수의 제 1셀(22) 내에 포집되어 있는 입자상물질은 강제적으로 재생되는 연료 후분사와 더불어 상기 이중 파이프(4)와 디젤 산화촉매부(6)에 의해 상승된 배기가스의 온도에 의해 발화연소되어 제거된다.On the other hand, the particulate matter collected in the plurality of first cells 22 provided in the diesel particulate filter 8, together with the fuel after-injection forcibly regenerated, the double pipe 4 and the diesel oxidation catalyst unit 6 It is ignited and removed by the temperature of exhaust gas raised by).

상기한 실시예를 갖는 본 발명은 그 실시양태에 구애받지 않고 그 기술적 요지를 일탈하지 않는 한도 내에서 얼마든지 다양하게 변형하여 실시할 수 있도록 되어 있음은 물론이다.It is a matter of course that the present invention having the above-described embodiments can be variously modified and implemented without departing from the technical gist of the present invention without departing from the embodiments.

이상과 같이 본 발명에 따르면, 이중관으로 이루어지는 배기파이프를 적용함과 더불어 디젤 산화촉매와 디젤 입자상물질 필터로 이루어진 이중 배기계통을 구성함에 의해, 배기가스의 온도를 상승시켜서 연료 후분사의 시기와 연료 분사량을 저감하고도 입자상물질이 연소될 수 있는 환경을 충분히 형성할 수 있게 되면서 배기가스의 제거효율을 증대시킬 수 있다는 효과가 있다.According to the present invention as described above, by applying the exhaust pipe consisting of a double pipe, and by configuring a double exhaust system consisting of a diesel oxidation catalyst and a diesel particulate filter, by raising the temperature of the exhaust gas and the timing of the fuel post-injection It is possible to increase the removal efficiency of the exhaust gas while reducing the amount of injection and being able to sufficiently form an environment in which particulate matter can be combusted.

또한, 이중 파이프를 사용하여 배기가스의 온도를 상승시킬 수 있게 됨에 따라, 디젤 산화촉매에 코팅되는 고가격대의 귀금속막에 대한 코팅량을 저감하여 비용을 절감할 수 있다는 효과가 있다.In addition, since it is possible to increase the temperature of the exhaust gas by using a double pipe, there is an effect that the cost can be reduced by reducing the coating amount on the high-priced precious metal film coated on the diesel oxidation catalyst.

Claims (1)

디젤엔진 차량의 배기장치에 있어서,In the exhaust device of a diesel engine vehicle, 배기 매니폴드로부터의 배기가스에 대한 열손실 방지를 위해 내부 파이프 및 외부 파이프의 이중구조를 갖는 이중 파이프와,A double pipe having a double structure of an inner pipe and an outer pipe to prevent heat loss of exhaust gas from the exhaust manifold; 상기 이중 파이프와 연결되어 상기 배기 매니폴드로부터의 배기가스의 온도를 상승시키는 디젤 산화촉매부,A diesel oxidation catalyst unit connected to the double pipe to increase a temperature of exhaust gas from the exhaust manifold, 상기 디젤 산화촉매부와 직접 연결되어 상기 이중 파이프 및 디젤 산화 촉매부에 의해 상승된 배기가스의 온도에 의해 배기가스로부터 포집한 입자상 물질을 연소시키는 디젤 입자상물질 필터 및,A diesel particulate filter directly connected to the diesel oxidation catalyst to burn particulate matter collected from the exhaust by the temperature of the exhaust gas raised by the double pipe and the diesel oxidation catalyst; 상기 디젤 입자상물질 필터로부터 배출되는 잔여 가스를 외부로 배출하는 머플러로 구성된 것을 특징으로 하는 이중관 배기구조를 이용한 디젤 입자상물질 제거장치.Diesel particulate matter removal apparatus using a double pipe exhaust structure, characterized in that composed of a muffler for discharging the residual gas discharged from the diesel particulate filter to the outside.
KR1020020021225A 2002-04-18 2002-04-18 Apparatus for regenerating diesel particulate filter using dual exhaust structure KR20030082754A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55127828U (en) * 1979-03-05 1980-09-10
KR20010048117A (en) * 1999-11-25 2001-06-15 김덕중 Exhaust gas system of internal combution engine
JP2001234732A (en) * 2000-02-25 2001-08-31 Mitsubishi Motors Corp Exhaust emission control device
JP2001295631A (en) * 2000-04-12 2001-10-26 Toyota Industries Corp Exhaust emission control device for engine, and exhaust emission control method
JP2001323814A (en) * 2000-03-08 2001-11-22 Katayama Kogyo Co Ltd Exhaust double pipe of vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55127828U (en) * 1979-03-05 1980-09-10
KR20010048117A (en) * 1999-11-25 2001-06-15 김덕중 Exhaust gas system of internal combution engine
JP2001234732A (en) * 2000-02-25 2001-08-31 Mitsubishi Motors Corp Exhaust emission control device
JP2001323814A (en) * 2000-03-08 2001-11-22 Katayama Kogyo Co Ltd Exhaust double pipe of vehicle
JP2001295631A (en) * 2000-04-12 2001-10-26 Toyota Industries Corp Exhaust emission control device for engine, and exhaust emission control method

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