KR20220099866A - Smoke reduction device having diesel particulate filter - Google Patents

Smoke reduction device having diesel particulate filter Download PDF

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KR20220099866A
KR20220099866A KR1020210002240A KR20210002240A KR20220099866A KR 20220099866 A KR20220099866 A KR 20220099866A KR 1020210002240 A KR1020210002240 A KR 1020210002240A KR 20210002240 A KR20210002240 A KR 20210002240A KR 20220099866 A KR20220099866 A KR 20220099866A
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South Korea
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particulate filter
combustor
diesel particulate
harmful substances
reduction device
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KR1020210002240A
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Korean (ko)
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김영식
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주식회사 하이텍알앤에이치
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Priority to KR1020210002240A priority Critical patent/KR20220099866A/en
Publication of KR20220099866A publication Critical patent/KR20220099866A/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
    • F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/025—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 using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • 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
    • F01N2240/14—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 a fuel burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/101—Engine speed

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

Provided is a particulate matter reduction apparatus equipped with a diesel particulate filter, which has an improved removal effect of a gaseous harmful substance and a particulate harmful substance contained in an exhaust gas. The particulate matter reduction apparatus equipped with the diesel particulate filter comprises: a combustor; and a particulate filter disposed on one side of the combustor and post-processing the residual harmful substance. The combustor receives a vehicle's RPM value from a vehicle's RPM sensor and operates in conjunction with the same.

Description

디젤 미립자 필터를 구비한 매연저감장치{SMOKE REDUCTION DEVICE HAVING DIESEL PARTICULATE FILTER}A smoke reduction device equipped with a diesel particulate filter {SMOKE REDUCTION DEVICE HAVING DIESEL PARTICULATE FILTER}

본 발명은 디젤 미립자 필터를 구비한 매연저감장치에 관한 것이다.The present invention relates to a soot abatement device having a diesel particulate filter.

일반적으로 디젤 내연기관이 연료를 연소할 때 발생하는 배기가스에 포함된 CO(일산화탄소), HC(탄화수소), NOx(질소산화물), SOx(황산화물) 등의 가스상의 유해물질을 제거하는 기술에는 플라즈마(dielectric barrier discharge)를 이용하여 배기가스 중의 NO를 NO₂로 산화시킨 후, 암모니아를 첨가하여 선택적 촉매환원법(selective catalytic reduction, SCR)으로 NO₂를 제거하는 방법이 이용된다.In general, the technology to remove harmful gaseous substances such as CO (carbon monoxide), HC (hydrocarbon), NOx (nitrogen oxide), SOx (sulfur After oxidizing NO in exhaust gas to NO2 using plasma (dielectric barrier discharge), ammonia is added to remove NO2 by selective catalytic reduction (SCR).

또한, 유해물질을 연소하는 방법에는 촉매를 이용하는 방법과 연료연소를 통해 유해물질이 연소되는 온도까지 가열하는 방법, 필터의 집진량이 일정 수준에 도달하면 엔진이 특수한 방식으로 구동되도록 하는 엔진 변용법(배기가스를 연소시키거나 NO₂량을 증가시켜 오염물질을 산화시킴)이 적용된다.In addition, the methods for burning harmful substances include a method of using a catalyst, a method of heating to the temperature at which harmful substances are burned through fuel combustion, and an engine transformation method that enables the engine to operate in a special way when the dust collection amount of the filter reaches a certain level ( oxidizing pollutants by burning exhaust gas or increasing the amount of NO2) is applied.

한편, 디젤 내연기관의 입자상 유해물질(PM)을 저감시키는 필터의 총칭인 DPF(DIESEL PARTICULATE FILTER)는 촉매 미립자 필터(CATALYTIC PARTICULATE FILTER: CPF)로 구비될 수 있다. 이러한 DPF의 원리는 촉매 내부가 지그재그 형상의 통로로 되어 있어 입자상의 유해물질(PM)이 이곳에 퇴적되도록 하여 배기가스에 포함된 유해물질을 제거 또는 저감시킨다.On the other hand, DPF (DIESEL PARTICULATE FILTER), which is a generic name of a filter for reducing particulate harmful substances (PM) of a diesel internal combustion engine, may be provided as a catalytic particulate filter (CATALYTIC PARTICULATE FILTER: CPF). The principle of this DPF is that the inside of the catalyst is a zigzag-shaped passage, so that particulate harmful substances (PM) are deposited there, thereby removing or reducing harmful substances contained in exhaust gas.

또한, 가스상의 유해물질(PM)을 제거하는 DOC(산화촉매)는 그 자체는 변화하지 않고 다른 물질의 화학반응을 돕는 작용을 말하는 것으로 배기가스의 HC와 CO가 무해한 H₂O와 CO₂로 산화되는 것을 돕는다.In addition, DOC (oxidation catalyst), which removes harmful substances (PM) in the gas phase, does not change itself and refers to the action of helping the chemical reaction of other substances. help

이것은 일종의 반응 촉진제로 촉매는 형상이 팔레트형(입상)이나 모노리스형(하니컴)의 것이 있으며 알루미나 또는 세라믹의 표면에 귀금속, 로듐이나 팔라듐이 코팅되어 있다.This is a kind of reaction accelerator, and the catalyst is in the form of a pallet (granular) or monolith (honeycomb), and a noble metal, rhodium or palladium is coated on the surface of alumina or ceramic.

그러나 종래의 필터장치는 유해물질(PM)을 필터장치 내에 축적되게 하고 이를 센싱(sensing)하여 축적량이 일정량에 도달하면 DPF/DOC를 제어하여 유해물질(PM)을 제거하는 재생과정을 거치도록 되어 있으나 유해물질은 차량의 운행시 지속적으로 발생되므로 DPF/DOC의 수명 및 성능을 저하시키게 되고 차량의 운행중에는 재생과정을 진행할 수 없는 단점이 있었다.However, the conventional filter device accumulates harmful substances (PM) in the filter device, senses it, and when the accumulated amount reaches a certain amount, the DPF/DOC is controlled to go through a regeneration process to remove the harmful substances (PM). However, since hazardous substances are continuously generated during vehicle operation, the lifespan and performance of the DPF/DOC are reduced, and the regeneration process cannot be performed while the vehicle is operating.

또한, 공회전 및 저속주행(0~70km/h)상태에서는 배기가스의 낮은 온도로 인해 산화촉매가 거의 이루어지지 않는 문제가 발생하였다.In addition, there was a problem in that the oxidation catalyst was hardly made due to the low temperature of the exhaust gas in the idling and low-speed driving conditions (0 to 70 km/h).

본 발명이 해결하고자 하는 과제는 배기가스 내에 포함된 가스상 유해물질 및 입자상 유해물질 제거 효과가 향상된 디젤 미립자 필터를 구비한 매연저감장치를 제공하는 것이다.SUMMARY OF THE INVENTION It is an object of the present invention to provide a soot reduction device having a diesel particulate filter having an improved effect of removing gaseous harmful substances and particulate harmful substances contained in exhaust gas.

본 발명이 해결하고자 하는 과제들은 이상에서 언급된 과제로 제한되지 않으며, 언급되지 않은 또 다른 과제들은 아래의 기재로부터 통상의 기술자에게 명확하게 이해될 수 있을 것이다.The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

상술한 과제를 해결하기 위한 본 발명의 디젤 미립자 필터를 구비한 매연저감장치는 연소기; 상기 연소기의 일측에 배치되며 잔류하는 유해물질을 후처리하는 미립자 필터를 포함하고, 상기 연소기는 차량의 RPM 센서로부터 차량의 RPM값을 전송받아 연동되어 작동하는 것을 특징으로 할 수 있다.In order to solve the above problems, there is provided a soot reduction device having a diesel particulate filter of the present invention, comprising: a combustor; and a particulate filter disposed on one side of the combustor for post-processing residual harmful substances, wherein the combustor receives the vehicle RPM value from the vehicle RPM sensor and operates in conjunction.

본 발명의 디젤 미립자 필터를 구비한 매연저감장치는 유해물질 중 비교적 큰 입자상의 물질을 실시간으로 연소시켜 선처리하고 이와 동시에 디젤 미립자 필터를 제어하여 잔류된 유해물질을 후처리함으로써 필터에 유해물질이 축적되지 않아 디젤 미립자 필터를 재생해야 하는 번거로움을 해소할 수 있다. The smoke reduction device having a diesel particulate filter of the present invention burns relatively large particulate matter among harmful substances in real time to pre-treat it, and at the same time controls the diesel particulate filter to post-process the residual harmful substances, thereby accumulating harmful substances in the filter. This can eliminate the hassle of having to regenerate the diesel particulate filter.

본 발명의 효과들은 이상에서 언급된 효과로 제한되지 않으며, 언급되지 않은 또 다른 효과들은 아래의 기재로부터 통상의 기술자에게 명확하게 이해될 수 있을 것이다.Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

도 1은 본 발명의 디젤 미립자 필터를 구비한 매연저감장치를 나타낸 개념도이다.
도 2는 본 발명의 디젤 미립자 필터를 구비한 매연저감장치를 나타낸 사시도이다.1 is a conceptual diagram illustrating a smoke reduction device having a diesel particulate filter of the present invention.
2 is a perspective view showing a smoke reduction device having a diesel particulate filter of the present invention.

본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나, 본 발명은 이하에서 개시되는 실시예들에 제한되는 것이 아니라 서로 다른 다양한 형태로 구현될 수 있으며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하고, 본 발명이 속하는 기술 분야의 통상의 기술자에게 본 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다.Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the present embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully understand the scope of the present invention to those skilled in the art, and the present invention is only defined by the scope of the claims.

본 명세서에서 사용된 용어는 실시예들을 설명하기 위한 것이며 본 발명을 제한하고자 하는 것은 아니다. 본 명세서에서, 단수형은 문구에서 특별히 언급하지 않는 한 복수형도 포함한다. 명세서에서 사용되는 "포함한다(comprises)" 및/또는 "포함하는(comprising)"은 언급된 구성요소 외에 하나 이상의 다른 구성요소의 존재 또는 추가를 배제하지 않는다. 명세서 전체에 걸쳐 동일한 도면 부호는 동일한 구성 요소를 지칭하며, "및/또는"은 언급된 구성요소들의 각각 및 하나 이상의 모든 조합을 포함한다. 비록 "제1", "제2" 등이 다양한 구성요소들을 서술하기 위해서 사용되나, 이들 구성요소들은 이들 용어에 의해 제한되지 않음은 물론이다. 이들 용어들은 단지 하나의 구성요소를 다른 구성요소와 구별하기 위하여 사용하는 것이다. 따라서, 이하에서 언급되는 제1 구성요소는 본 발명의 기술적 사상 내에서 제2 구성요소일 수도 있음은 물론이다.The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components. Like reference numerals refer to like elements throughout, and "and/or" includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

다른 정의가 없다면, 본 명세서에서 사용되는 모든 용어(기술 및 과학적 용어를 포함)는 본 발명이 속하는 기술분야의 통상의 기술자에게 공통적으로 이해될 수 있는 의미로 사용될 수 있을 것이다. 또한, 일반적으로 사용되는 사전에 정의되어 있는 용어들은 명백하게 특별히 정의되어 있지 않는 한 이상적으로 또는 과도하게 해석되지 않는다.Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless specifically defined explicitly.

본 발명의 디젤 미립자 필터를 구비한 매연저감장치(이하, "매연저감장치"라 함)는 엔진의 배기구(manifold)와 머플러(muffler) 사이에 장착되며 유해물질(PM)을 제거 및 저감시키는 필터의 총칭인 DPF(DIESEL PARTICULATE FILTER)(50) 및 DOC(40)를 구비한다.A soot reduction device having a diesel particulate filter of the present invention (hereinafter, referred to as a "steam reduction device") is installed between an engine exhaust port and a muffler and is a filter that removes and reduces harmful substances (PM). DPF (DIESEL PARTICULATE FILTER) 50 and DOC 40, which are generic names of

또한, 이에 앞서 연소장치를 구비하고 있으며 상기 연소장치는 배기관을 통해 유입되는 배기가스를 연소시켜 이에 포함된 유해물질(PM)을 선 처리함으로써 우수한 매연저감 효과를 갖도록 되어 있다.In addition, prior to this, a combustion device is provided, and the combustion device burns the exhaust gas flowing in through the exhaust pipe and pre-treats the harmful substances (PM) contained therein to have an excellent effect of reducing smoke.

즉, 배기가스의 온도는 산화촉매의 효과에 영향을 주며 산화촉매가 이루어지는 구간에서 온도가 높을수록 우수한 매연저감 효과를 가질 수 있으므로 상기 연소과정을 거친 고온의 배기가스가 산화촉매 구간에서 우수한 촉매 효과를 갖도록 한 것이다.That is, the temperature of the exhaust gas affects the effect of the oxidation catalyst, and the higher the temperature in the section where the oxidation catalyst is made, the better the smoke reduction effect can be. was made to have

이에 따라, 본 발명에 의한 매연저감장치는 내부에 원통형의 가스실(11)이 구비되고, 상기 가스실(11)의 후방에이보다 확장된 연소실(12)이 형성된 원통형의 연소기(10)가 구비되며, 상기 원통형의 가스실(11) 외주면에는 다수개의 통공(11a)이 형성된다.Accordingly, the smoke reduction device according to the present invention is provided with a cylindrical gas chamber 11 therein, and a cylindrical combustor 10 having a combustion chamber 12 that is wider than this is provided at the rear of the gas chamber 11, A plurality of through holes 11a are formed on the outer peripheral surface of the cylindrical gas chamber 11 .

또한, 상기 연소기(10)의 전방측 외주면에는 엔진의 배기구와 연결되는 배기관(14)이 구비되어 엔진으로부터 배출되는 배기가스가 상기 연소기(10)의 가스실(11)로 유입되도록 되어있다.In addition, an exhaust pipe 14 connected to the exhaust port of the engine is provided on the outer peripheral surface of the front side of the combustor 10 so that the exhaust gas discharged from the engine flows into the gas chamber 11 of the combustor 10 .

이때, 상기 통공(11a)은 이를 통해 유입되는 배기가스가 가스실(11) 내에서 와류를 일으키도록 경사지게 관통되는 것이 바람직하다.At this time, it is preferable that the through hole 11a is slanted so that the exhaust gas introduced therethrough generates a vortex in the gas chamber 11 .

또한, 외부의 연료펌프(미도시)로부터 연결되는 연료파이프(P1) 및 외부의 컴프레셔(미도시)로부터 연결되는 공기파이프(P2)가 상기 가스실(11)의 외주면을 나선형으로 선회한 후 전방을 향해 외부로 인출되도록 구비된다.In addition, the fuel pipe (P1) connected from the external fuel pump (not shown) and the air pipe (P2) connected from the external compressor (not shown) spirally rotate around the outer peripheral surface of the gas chamber 11, and then It is provided to be drawn out toward the outside.

또한, 상기 연소기(10)는 가스실(11)과 연소실(12)의 경계 중심을 향하는 적어도 둘 이상의 점화플러그(13)가 구비된다.In addition, the combustor 10 is provided with at least two or more spark plugs 13 toward the center of the boundary between the gas chamber 11 and the combustion chamber 12 .

이어서, 상기 연소기(10)의 전방에 연료와 공기를 가열하기 위한 히터가(20) 설치된다. 상기 히터는 연소기(10) 내부의 가스실(11)을 지나 점화플러그(13)에 근접하게 연장되는 분사노즐(21)이 마련되고 상기 연소기(10)의 전방으로 인출된 공기파이프(P2)와 연결되어 공기가 유입되도록 되어 있다.Next, a heater 20 for heating fuel and air is installed in front of the combustor 10 . The heater is provided with an injection nozzle 21 extending close to the spark plug 13 through the gas chamber 11 inside the combustor 10 and is connected to the air pipe P2 drawn out to the front of the combustor 10 . to allow air to enter.

여기서, 상기 히터(20)의 일 측에는 개질(改質)박스(22)가 구비된다. 상기 개질박스(22)는 히터(20)로 공급된 연료를 열이나 촉매의 작용에 의하여 탄화수소의 구조를 변화시켜 연료의 내폭성(耐爆性)을 높이는 장치이다.Here, a reforming box 22 is provided on one side of the heater 20 . The reforming box 22 is a device for increasing the explosion resistance of the fuel by changing the structure of hydrocarbons by the action of heat or catalyst in the fuel supplied to the heater 20 .

이어서, 상기 히터(20)의 전방에 연료분사기(30)가 설치되며, 상기 연소기(10)의 전방으로 인출된 연료파이프(P1)와 연결되어 연료를 공급받도록 되어 있다.Next, the fuel injector 30 is installed in front of the heater 20 and is connected to the fuel pipe P1 drawn out to the front of the combustor 10 to receive fuel.

한편, 상기 연소기(10)의 후방에는 촉매장치(60)가 설치되며, 상기 촉매장치(60)는 내부에 DOC(40) 및 DPF(50)가 순차적으로 배치된다.Meanwhile, a catalyst device 60 is installed at the rear of the combustor 10 , and the DOC 40 and the DPF 50 are sequentially disposed therein.

상술된 구성으로 된 본 발명에 의한 매연저감장치는 엔진이 가동되면 배기관(14)을 통해 미립자형태의 유해물질(PM)이 포함된 배기가스가 가스실(11)로 유입된다.In the exhaust gas reduction device according to the present invention having the above-described configuration, when the engine is operated, exhaust gas containing harmful substances (PM) in particulate form is introduced into the gas chamber 11 through the exhaust pipe 14 .

여기서, 상기 배기가스는 상기 통공(11a)에 의해 와류를 일으키며 가스실(11)로 유입된 후 연소실(12)을 향해 흐르게 되고 상기 연료분사기(30)에서 분사되는 연료가 히터(20)를 통과하면서 상기 히터(20)로 공급되는 공기와 혼합됨과 동시에 가열된 후 분사노즐(21)을 통해 연소실(12)을 향해 분사된다.Here, the exhaust gas causes a vortex by the through hole 11a, flows into the gas chamber 11 and then flows toward the combustion chamber 12, and the fuel injected from the fuel injector 30 passes through the heater 20. After being mixed with the air supplied to the heater 20 and heated at the same time, it is injected toward the combustion chamber 12 through the injection nozzle 21 .

이때, 상기 분사된 연료는 점화플러그(13)에 의해 점화되어 연소실(12)에 수용된 배기가스를 연소시키게 되며 이와 같은 작용으로 배기가스에 포함된 HC와 CO가 무해한 H₂O와 CO₂로 산화되는 것이다.At this time, the injected fuel is ignited by the spark plug 13 to burn the exhaust gas accommodated in the combustion chamber 12, and by this action, HC and CO contained in the exhaust gas are oxidized to harmless H₂O and CO₂.

또한, 상기 히터(20)로 공급되는 공기와 연료분사기(30)로 공급되는 연료는 상기 가스실(11)을 통과하면서 예열되므로 히터(20)에서의 가열이 한층 용이하게 된다.In addition, since the air supplied to the heater 20 and the fuel supplied to the fuel injector 30 are preheated while passing through the gas chamber 11 , heating in the heater 20 becomes easier.

한편, 여기까지 과정에서의 작용만으로 배기가스에 포함된 유해물질(PM)은 대부분 산화되어 배출 허용기준을 충족시키나, 상기 연소기(10)의 후방에 설치된 촉매장치(60)를 더 거친 후 배출되도록 함으로써 이에 내설된 DOC(40) 및 DPF(50)에 의해 미세하게 잔류하는 유해물질(PM)이 완전히 제거되는 것이다.On the other hand, most of the harmful substances (PM) contained in the exhaust gas are oxidized only by the action in the process up to this point and meet the emission standards, but are discharged after passing through the catalyst device 60 installed at the rear of the combustor 10. By doing so, the harmful substances PM finely remaining by the built-in DOC 40 and DPF 50 are completely removed.

따라서 상기 DOC(40) 및 DPF(50)에 유해물질이 거의 축적되지 않으나 미세하게 축적되는 유해물질(PM)은 다시 고열에 의해 지속적으로 연소됨으로써 별도의 재생과정 없이 최적의 매연저감 효과를 나타내게 된다.Therefore, the harmful substances hardly accumulate in the DOC 40 and the DPF 50, but the finely accumulated harmful substances (PM) are continuously burned again due to high heat, thereby exhibiting an optimal smoke reduction effect without a separate regeneration process. .

이상, 첨부된 도면을 참조로 하여 본 발명의 실시예를 설명하였지만, 본 발명이 속하는 기술분야의 통상의 기술자는 본 발명이 그 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로, 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며, 제한적이 아닌 것으로 이해해야만 한다.In the above, the embodiments of the present invention have been described with reference to the accompanying drawings, but those skilled in the art to which the present invention pertains know that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims (1)

연소기; 및
상기 연소기의 일측에 배치되며 잔류하는 유해물질을 후처리하는 미립자 필터를 포함하고,
상기 연소기는 차량의 RPM 센서로부터 차량의 RPM값을 전송받아 연동되어 작동하는 것을 특징으로 하는 디젤 미립자 필터를 구비한 매연저감장치.burner; and
It is disposed on one side of the combustor and includes a particulate filter for post-treatment of residual harmful substances,
Wherein the combustor receives the RPM value of the vehicle from the RPM sensor of the vehicle and operates in conjunction.
KR1020210002240A 2021-01-07 2021-01-07 Smoke reduction device having diesel particulate filter KR20220099866A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023075104A1 (en) 2021-10-27 2023-05-04 (주) 엘지화학 Thermoplastic polyester elastomer resin composition, method for preparing same, and molded product comprising same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023075104A1 (en) 2021-10-27 2023-05-04 (주) 엘지화학 Thermoplastic polyester elastomer resin composition, method for preparing same, and molded product comprising same

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