KR20130012826A - Cooling system of exhaust gas line - Google Patents

Cooling system of exhaust gas line Download PDF

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Publication number
KR20130012826A
KR20130012826A KR1020110074234A KR20110074234A KR20130012826A KR 20130012826 A KR20130012826 A KR 20130012826A KR 1020110074234 A KR1020110074234 A KR 1020110074234A KR 20110074234 A KR20110074234 A KR 20110074234A KR 20130012826 A KR20130012826 A KR 20130012826A
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South Korea
Prior art keywords
exhaust line
exhaust
muffler room
cooling system
room
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KR1020110074234A
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Korean (ko)
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조기수
신재석
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현대자동차주식회사
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Priority to KR1020110074234A priority Critical patent/KR20130012826A/en
Publication of KR20130012826A publication Critical patent/KR20130012826A/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/05Exhaust 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 air, e.g. by mixing exhaust with air
    • F01N3/055Exhaust 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 air, e.g. by mixing exhaust with air without contact between air and exhaust gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021Exhaust 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2560/00Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/06Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00Adding substances to exhaust gases
    • F01N2610/14Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems

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

Abstract

PURPOSE: A cooling system for an exhaust line is provided to prevent the exhaust line, a diesel exhaust filter, an injector, and a nitrogen oxide purifying catalyst from being overheated and the degradation of peripheral parts. CONSTITUTION: A cooling system for an exhaust line(110) comprises the exhaust line, an exhaust filter(140), a muffler room(180), a temperature sensor(150), an motor fan, and a control unit(120). Exhaust gas flows in the exhaust line. The exhaust filter is installed in the exhaust line to collect particle materials included in the exhaust gas. Some parts of the exhaust filter and exhaust line are mounted inside the muffler room. The temperature sensor senses the temperature of the muffler room. The motor fan supplies air to the muffler room. The control unit decreases the temperature of the muffler room by operating the motor fan by using the temperature sensed by the temperature sensor.

Description

배기라인의 냉각 시스템{COOLING SYSTEM OF EXHAUST GAS LINE} Cooling system of exhaust line {COOLING SYSTEM OF EXHAUST GAS LINE}

본 발명은 배기가스가 지나는 배기라인에 설치되는 배기가스정화장치가 과열되는 것을 방지하여 배기가스의 정화기능을 안정적으로 유지하고, 주변 부품의 열화를 방지하는 배기라인의 냉각 시스템에 관한 것이다.The present invention relates to a cooling system of an exhaust line which prevents the exhaust gas purifying apparatus installed in the exhaust line through which the exhaust gas passes, stably maintains the purification function of the exhaust gas, and prevents deterioration of peripheral components.

건설기계나 차량의 유해 배기가스에 대한 규제가 강화됨에 배기가스의 저감은 아주 중요한 기술적 이슈가 된지 오래이다. 유해배기가스의 배출이 상대적으로 많은 디젤 엔진의 경우, 배기가스 저감은 더욱 중요한 문제가 되었다. Restrictions on hazardous emissions from construction machinery and vehicles are being tightened, so emission reduction has long been a very important technical issue. For diesel engines with relatively high emissions of harmful exhaust gases, emissions reduction has become a more important issue.

특히, 연료의 불완전 연소에 주로 기인하는 입자상 물질(PM, Particulate matter)에 대한 저감이 요구되고 있다.In particular, there is a demand for reduction of particulate matter (PM) mainly caused by incomplete combustion of fuel.

입자상 물질을 줄이기 위해 가장 일반적으로 사용하는 기술로는 배기가스 성분 중 입자상 물질을 포집하고 포집된 입자상 물질을 가열하여 제거하는 매연필터(DPF: Diesel Particulate Filter) 기술을 들 수 있다. 여기서, 입자상 물질을 제거하는 과정을 재생(regeneration)이라고 한다.The most commonly used technique for reducing particulate matter is a diesel particulate filter (DPF) technique that collects particulate matter in exhaust gas components and heats and removes the collected particulate matter. Here, the process of removing particulate matter is called regeneration.

이러한 재생 과정은 매연필터(DPF)에 마련된 별도의 재생장치에 의해 이루어진다. 보다 구체적으로, 상기 재생장치는 매연필터(DPF)에 연료를 분사하여 매연필터(DPF) 내에 포집된 입자상 물질을 제거하게 된다.This regeneration process is performed by a separate regeneration device provided in the soot filter (DPF). More specifically, the regeneration apparatus injects fuel into the soot filter DPF to remove particulate matter trapped in the soot filter DPF.

그러나 재생과정에서 매연필터(DPF)는 그 표면온도가 400℃까지 상승하게 된다. 이러한 고열은 주변부품을 가열하게 되어 각종 부품들이 열화되거나 그 내구성이 저감될 수 있다. However, during the regeneration process, the soot filter (DPF) has a surface temperature of 400 ° C. Such high heat may cause heating of peripheral components, which may deteriorate various components or reduce their durability.

따라서, 본 발명은 배기라인에 설치되는 디젤매연필터와 이에 인접한 부품들이 열화되어 그 내구성이 저감되는 것을 효과적으로 방지하는 배기라인의 냉각 시스템을 제공하는 것이다. Accordingly, the present invention is to provide a cooling system of the exhaust line that effectively prevents the diesel particulate filter installed in the exhaust line and the parts adjacent thereto deteriorate to reduce its durability.

본 발명에 따른 배기라인의 냉각 시스템은, 배가가스가 지나는 배기라인, 상기 배기라인 상에 설치되어 배기가스에 포함된 입자상물질을 포집하는 매연필터, 상기 매연필터와 상기 배기라인의 일정구간이 내부에 장착되도록 배치되는 머플러룸, 상기 머플러룸의 온도를 감지하는 온도센서, 상기 머플러룸으로 에어를 공급하도록 설치되는 전동팬, 및 상기 온도센서에서 감지된 온도를 이용하여 상기 전동팬을 작동시켜 상기 머플러룸의 온도를 하강시키는 제어부를 포함한다. A cooling system of an exhaust line according to the present invention includes an exhaust line through which exhaust gas passes, a soot filter installed on the exhaust line to collect particulate matter contained in the exhaust gas, and a predetermined section of the soot filter and the exhaust line is inside. A muffler room disposed to be mounted on the muffler room, a temperature sensor detecting a temperature of the muffler room, an electric fan installed to supply air to the muffler room, and operating the electric fan by using the temperature sensed by the temperature sensor; It includes a control unit for lowering the temperature of the muffler room.

구동휠의 일측에 설치되는 내측머드가드, 및 상기 내측머드가드의 외측에 배치되는 외측머드가드를 포함하고, 상기 머플러룸의 일측은 상기 외측머드가드에 의해서 형성된다. An inner mudguard is installed on one side of the driving wheel, and an outer mudguard disposed outside the inner mudguard, and one side of the muffler room is formed by the outer mudguard.

상기 전동팬은 상기 외측머드가드에 설치되어, 외부공기를 상기 머플러룸 내부로 공급하여, 상기 배기라인과 상기 배기라인에 설치되는 부품들을 냉각시킨다. The electric fan is installed in the outer mudguard to supply external air into the muffler room to cool the exhaust line and the components installed in the exhaust line.

상기 머플러룸 내부에서, 상기 배기라인에는 환원제를 분사하도록 인젝터가 설치된다. In the muffler room, an injector is installed in the exhaust line to inject a reducing agent.

상기 머플러룸 내부에서, 상기 인젝터의 하류측에는 질소산화물을 흡장하고, 상기 인젝터에서 분사된 환원제를 이용하여 질소산화물을 제거하는 질소산화물정화촉매가 설치된다. Inside the muffler room, a nitrogen oxide purifying catalyst is installed downstream of the injector to absorb nitrogen oxide and to remove the nitrogen oxide using a reducing agent injected from the injector.

상기 매연필터, 상기 인젝터, 및 상기 질소산화물정화촉매가 상기 배기라인에 순차적으로 배치된다. The particulate filter, the injector, and the nitrogen oxide purification catalyst are sequentially disposed in the exhaust line.

상기 배기라인의 하류측에는 상기 인젝터에서 분사된 환원제를 배기가스와 믹싱하는 믹싱룸이 형성된다. Downstream of the exhaust line, a mixing room for mixing the reducing agent injected from the injector with the exhaust gas is formed.

앞에서 기재된 바와 같이 본 발명에 따른 배기라인의 냉각 시스템에서, 온도센서는 머플러룸 내부의 온도를 감지하고, 그 감지된 온도에 따라서, 쿨링팬을 작동시켜, 상기 머플러룸 내부로 상온의 공기를 불어넣어준다. As described above, in the cooling system of the exhaust line according to the present invention, the temperature sensor senses the temperature inside the muffler room, and operates a cooling fan according to the sensed temperature to blow air at room temperature into the muffler room. Put it in.

따라서, 배기라인을 포함하여, 상기 배기라인에 설치되는 상기 디젤매연필터, 상기 인젝터, 상기 질소산화물정화촉매의 표면온도가 과열되는 것이 방지되고, 주변 부품이 열화되는 것을 방지한다. Accordingly, the surface temperature of the diesel particulate filter, the injector, and the nitrogen oxide purification catalyst installed in the exhaust line, including the exhaust line, is prevented from being overheated, and the surrounding parts are prevented from being deteriorated.

도 1은 본 발명의 한 실시예에 따른 배기라인의 냉각 시스템의 일부 개략적인 구성도이다.
도 2는 본 발명의 다른 실시예에 따른 배기라인의 냉각 시스템의 일부 개략적인 구성도이다.
도 3은 본 발명의 실시예에 따른 배기라인의 냉각 시스템의 개략적인 내부 사시도이다.
1 is a partial schematic diagram of a cooling system of an exhaust line according to an embodiment of the present invention.
2 is a schematic view of a part of a cooling system of an exhaust line according to another embodiment of the present invention.
3 is a schematic internal perspective view of a cooling system of an exhaust line according to an embodiment of the present invention.

이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 상세하게 설명하면 다음과 같다. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 한 실시예에 따른 배기라인의 냉각 시스템의 일부 개략적인 구성도이다. 1 is a partial schematic diagram of a cooling system of an exhaust line according to an embodiment of the present invention.

도 1을 참조하면, 배기라인의 냉각 시스템은 엔진(100), 배기라인(110), 제어부(120), 쿨링팬(130), 디젤매연필터(140), 온도센서(150), 환원제인젝터(160), 질소산화물정화촉매(170), 및 머플러룸(180)을 포함한다. Referring to FIG. 1, the cooling system of the exhaust line includes an engine 100, an exhaust line 110, a controller 120, a cooling fan 130, a diesel particulate filter 140, a temperature sensor 150, and a reducing agent injector ( 160, a nitrogen oxide purification catalyst 170, and a muffler room 180.

상기 배기라인(110)은 상기 머플러룸(180)을 통과하도록 배치되고, 상기 머플러룸(180) 안에는 상기 디젤매연필터(140), 상기 환원제인젝터(160), 및 상기 질소산화물정화촉매(170)가 배치된다. The exhaust line 110 is disposed to pass through the muffler room 180, and the diesel particulate filter 140, the reducing agent injector 160, and the nitrogen oxide purification catalyst 170 are disposed in the muffler room 180. Is placed.

여기서, 상기 디젤매연필터(140), 상기 환원제인젝터(160), 및 상기 질소산화물정화촉매(170)는 상기 배기라인에 순차적으로 배치된다. Here, the diesel particulate filter 140, the reducing agent injector 160, and the nitrogen oxide purification catalyst 170 are sequentially disposed in the exhaust line.

상기 머플러룸(180) 내부에는 내부온도를 감지하는 상기 온도센서(150)가 배치되고, 상기 머플러룸(180) 내부로 공기를 불어넣어주는 상기 쿨링팬(130)이 장착된다. The temperature sensor 150 that senses an internal temperature is disposed in the muffler room 180, and the cooling fan 130 that blows air into the muffler room 180 is mounted.

상기 제어부(120)는 상기 온도센서(150)를 통해서 상기 머플러룸(180)의 온도를 감지하고, 그 감지된 온도에 따라서 상기 쿨링팬(130)을 작동시켜, 상기 머플러룸(180) 안으로 상온의 공기를 불어넣는다. The controller 120 senses the temperature of the muffler room 180 through the temperature sensor 150 and operates the cooling fan 130 according to the detected temperature, thereby allowing room temperature into the muffler room 180. Inflate the air.

따라서, 상기 머플러룸(180)의 내부 온도가 하강하고, 상기 디젤매연필터(140), 상기 환원제인젝터(160), 및 상기 질소산화물정화촉매가 과열되지 않으며, 주변부품들로 고열이 전달되는 것을 방지한다. Therefore, the internal temperature of the muffler room 180 is lowered, the diesel particulate filter 140, the reducing agent injector 160, and the nitrogen oxide purification catalyst is not overheated, and high heat is transmitted to the peripheral parts. prevent.

도 2는 본 발명의 다른 실시예에 따른 배기라인의 냉각 시스템의 일부 개략적인 구성도이다. 도 2에서는 도 1과 구별되는 부분에 대해서 상세하게 설명한다. 2 is a schematic view of a part of a cooling system of an exhaust line according to another embodiment of the present invention. In FIG. 2, the part distinguished from FIG. 1 is demonstrated in detail.

도 2를 참조하면, 휠(200)이 차량의 하부에 배치되고, 상기 휠(200)의 외측에는 내측머드가드(210)가 배치된다. 상기 내측머드가드(210)는 상기 휠(200)에서 비산되는 물이나 모래 등을 차단하여 차체의 마모나 부식 등을 방지한다. Referring to FIG. 2, the wheel 200 is disposed under the vehicle, and the inner mudguard 210 is disposed outside the wheel 200. The inner mudguard 210 blocks water or sand scattered from the wheel 200 to prevent wear or corrosion of the vehicle body.

상기 내측머드가드(210)의 외측에 외측머드가드(220)가 더 배치되고, 상기 내측머드가드(210)와 상기 외측머드가드(220) 사이에는 공간이 형성된다. An outer mud guard 220 is further disposed outside the inner mud guard 210, and a space is formed between the inner mud guard 210 and the outer mud guard 220.

상기 내측머드가드(210)와 상기 내측머드가드(210)는 서로 분리된 상태로 연결되거나 일체로 형성될 수 있다. The inner mudguard 210 and the inner mudguard 210 may be connected to or separated from each other.

상기 머플러룸(180)은 여러 개의 격벽으로 형성되고, 도시한 바와 같이, 상기 머플러룸(180)은 상기 외측머드가드(220)에 의해서 형성된다. The muffler room 180 is formed of a plurality of partition walls, and as shown, the muffler room 180 is formed by the outer mudguard 220.

상기 외측머드가드(220)에 상기 쿨링팬(130)이 배치되고, 상기 내측머드가드(210)와 상기 외측머드가드(220) 사이의 공기를 상기 머플러룸(180) 안으로 공급한다. The cooling fan 130 is disposed on the outer mud guard 220, and supplies air between the inner mud guard 210 and the outer mud guard 220 into the muffler room 180.

상기 머플러룸(180) 내부로 공급된 에어는 상기 배기라인(110), 상기 디젤매연필터(140), 상기 환원제인젝터(160), 및 상기 질소산화물정화촉매(170) 등을 냉각시켜, 이들이 열화되는 것을 방지하고, 이들과 인접한 부품들이 열화되어 고장나는 것을 방지한다. The air supplied into the muffler room 180 cools the exhaust line 110, the diesel particulate filter 140, the reducing agent injector 160, the nitrogen oxide purification catalyst 170, and the like, thereby deteriorating them. It is prevented from being deteriorated and the parts adjacent to them deteriorate and fail.

본 발명의 실시예에서는 상기 쿨링팬(130)이 상기 머플러룸(180) 안으로 에어를 공급하는 것으로 설명하였으나, 그 반대로 에어를 안에서 바깥으로 뽑아내는 구조도 가능하다. In the embodiment of the present invention, the cooling fan 130 has been described as supplying air into the muffler room 180, but on the contrary, a structure for extracting air from the inside out is also possible.

도 3은 본 발명의 실시예에 따른 배기라인의 냉각 시스템의 개략적인 내부 사시도이다. 도 3에서는 도 1 및 도 2와 구별되는 부분에 대해서 상세하게 설명한다. 3 is a schematic internal perspective view of a cooling system of an exhaust line according to an embodiment of the present invention. In FIG. 3, the part distinguished from FIG. 1 and FIG. 2 is demonstrated in detail.

도 3을 참조하면, 상기 휠(200)과 인접하여 상기 외측머드가드(220)가 배치되고, 상기 내측머드가드(210)는 도면에는 생략되었다. Referring to FIG. 3, the outer mudguard 220 is disposed adjacent to the wheel 200, and the inner mudguard 210 is omitted in the drawing.

상기 외측머드가드(220)에서 외측에서 내측으로 통하는 통로에 상기 쿨링팬(130)이 배치된다. The cooling fan 130 is disposed in a passage from the outer mud guard 220 from the outer side to the inner side.

상기 외측머드가드(220)에 의해서 형성되는 상기 머플러룸(180) 안에는 상기 디젤매연필터(140), 상기 환원제인젝터(160), 믹싱룸(300), 및 상기 질소산화물정화촉매(170)가 순차적으로 배치된다. 여기서, 상기 환원제인젝터(160)는 상기 믹싱룸(300) 안으로 환원제를 분사하도록 배치된다. In the muffler room 180 formed by the outer mudguard 220, the diesel particulate filter 140, the reducing agent injector 160, the mixing room 300, and the nitrogen oxide purification catalyst 170 are sequentially formed. Is placed. Here, the reducing agent injector 160 is arranged to spray a reducing agent into the mixing room (300).

도 1,2,3을 참조하여 설명한 바와 같이, 상기 온도센서(150)는 상기 머플러룸(180) 내부의 온도를 감지하고, 그 감지된 온도에 따라서, 상기 제어부(120)는 상기 머플러룸(180) 내부의 온도가 설정수치를 초과한 것으로 판단되면, 상기 쿨링팬(130)을 작동시켜, 상기 머플러룸(180) 내부로 상온의 공기를 불어넣어준다. As described with reference to FIGS. 1,2 and 3, the temperature sensor 150 senses a temperature inside the muffler room 180, and according to the sensed temperature, the controller 120 controls the muffler room ( 180) If it is determined that the internal temperature exceeds the set value, the cooling fan 130 is operated to blow air at room temperature into the muffler room 180.

따라서, 배기라인을 포함하여, 상기 배기라인(110)에 설치되는 상기 디젤매연필터(140), 상기 환원제인젝터(160), 상기 질소산화물정화촉매(170)의 표면온도가 과열되는 것이 방지되고, 주변 부품이 열화되는 것을 방지한다. Therefore, the surface temperature of the diesel particulate filter 140, the reducing agent injector 160, and the nitrogen oxide purification catalyst 170 installed in the exhaust line 110 is prevented from being overheated, including the exhaust line. Prevents peripheral parts from deteriorating.

본 발명의 실시예에서, 상기 머플러룸 내부에 상기 디젤매연필터, 상기 환원제인젝터, 상기 질소산화물정화촉매, 및 상기 믹싱룸이 배치되는 것으로 설명하였다. In the embodiment of the present invention, it has been described that the diesel particulate filter, the reducing agent injector, the nitrogen oxide purification catalyst, and the mixing room are disposed in the muffler room.

그러나, 이들이 선택적으로 상기 머플러룸 내부에 배치될 수 있다. 아울러, 종래에 적용되고 있는 다른 배기가스정화장치나 차량부품, 및 다른 장치들이 배치될 수 있다. However, they may optionally be placed inside the muffler room. In addition, other exhaust gas purifying apparatuses, vehicle parts, and other apparatuses conventionally applied may be arranged.

이상으로 본 발명에 관한 바람직한 실시예를 설명하였으나, 본 발명은 상기 실시예에 한정되지 아니하며, 본 발명의 실시예로부터 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의한 용이하게 변경되어 균등하다고 인정되는 범위의 모든 변경을 포함한다.While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

100: 엔진
110: 배기라인
120: 제어부
130: 쿨링팬
140: 디젤매연필터
150: 온도센서
160: 환원제인젝터
170: 질소산화물정화촉매
180: 머플러룸
200: 휠
210: 내측머드가드
220: 외측머드가드
300: 믹싱룸
100: engine
110: exhaust line
120: control unit
130: cooling fan
140: diesel particulate filter
150: Temperature sensor
160: reductant injector
170: nitrogen oxide purification catalyst
180: muffler room
200: wheel
210: inner mudguard
220: outer mudguard
300: mixing room

Claims (7)

배가가스가 지나는 배기라인;
상기 배기라인 상에 설치되어 배기가스에 포함된 입자상물질을 포집하는 매연필터;
상기 매연필터와 상기 배기라인의 일정구간이 내부에 장착되도록 배치되는 머플러룸;
상기 머플러룸의 온도를 감지하는 온도센서;
상기 머플러룸으로 에어를 공급하도록 설치되는 전동팬; 및
상기 온도센서에서 감지된 온도를 이용하여 상기 전동팬을 작동시켜 상기 머플러룸의 온도를 하강시키는 제어부; 를 포함하는 배기라인의 냉각 시스템.
Exhaust line through which the exhaust gas passes;
A soot filter installed on the exhaust line to collect particulate matter contained in the exhaust gas;
A muffler room arranged to mount a predetermined section of the particulate filter and the exhaust line therein;
A temperature sensor for sensing a temperature of the muffler room;
An electric fan installed to supply air to the muffler room; And
A controller configured to lower the temperature of the muffler room by operating the electric fan using the temperature sensed by the temperature sensor; Cooling system of the exhaust line comprising a.
제1항에서,
구동휠의 일측에 설치되는 내측머드가드; 및 상기 내측머드가드의 외측에 배치되는 외측머드가드를 포함하고,
상기 머플러룸의 일측은 상기 외측머드가드에 의해서 형성되는 것을 특징으로 하는 배기가라인의 냉각 시스템.
In claim 1,
An inner mudguard installed at one side of the driving wheel; And an outer mud guard disposed outside the inner mud guard,
Cooling system of the exhaust gas line, characterized in that one side of the muffler room is formed by the outer mudguard.
제2항에서,
상기 전동팬은 상기 외측머드가드에 설치되어, 외부공기를 상기 머플러룸 내부로 공급하여, 상기 배기라인과 상기 배기라인에 설치되는 부품들을 냉각시키는 것을 특징으로 하는 배기가라인의 냉각 시스템.
In claim 2,
The electric fan is installed in the outer mud guard, supply the outside air into the muffler room, the exhaust line cooling system, characterized in that for cooling the exhaust line and the components installed in the exhaust line.
제1항에서,
상기 머플러룸 내부에서, 상기 배기라인에는 환원제를 분사하도록 인젝터가 설치되는 것을 특징으로 하는 배기라인의 냉각 시스템.
In claim 1,
In the muffler room, the exhaust line cooling system, characterized in that the injector is installed to inject a reducing agent.
제4항에서,
상기 머플러룸 내부에서, 상기 인젝터의 하류측에는 질소산화물을 흡장하고, 상기 인젝터에서 분사된 환원제를 이용하여 질소산화물을 제거하는 질소산화물정화촉매가 설치되는 것을 특징으로 하는 배기라인의 냉각 시스템.
5. The method of claim 4,
Inside the muffler room, a nitrogen oxide purification catalyst for storing nitrogen oxide downstream of the injector and removing nitrogen oxide using a reducing agent injected from the injector is installed.
제5항에서,
상기 매연필터, 상기 인젝터, 및 상기 질소산화물정화촉매가 상기 배기라인에 순차적으로 배치되는 것을 특징으로 하는 배기라인의 냉각 시스템.
The method of claim 5,
The exhaust filter, the injector, and the nitrogen oxide purification catalyst are sequentially disposed in the exhaust line.
제5항에서,
상기 배기라인의 하류측에는 상기 인젝터에서 분사된 환원제를 배기가스와 믹싱하는 믹싱룸이 형성되는 것을 특징으로 하는 배기라인의 냉각 시스템.
The method of claim 5,
Downstream of the exhaust line is a cooling system for the exhaust line, characterized in that the mixing room for mixing the reducing agent injected from the injector with the exhaust gas is formed.
KR1020110074234A 2011-07-26 2011-07-26 Cooling system of exhaust gas line KR20130012826A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015147488A1 (en) * 2014-03-25 2015-10-01 (주)대동공업 Method for regenerating diesel particulate filter, and diesel particulate filter regenerated thereby
KR20180068735A (en) 2016-12-14 2018-06-22 현대자동차주식회사 Cooling apparatus for after treatment system using cooling fan of engine and cooling method for after treatment system using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015147488A1 (en) * 2014-03-25 2015-10-01 (주)대동공업 Method for regenerating diesel particulate filter, and diesel particulate filter regenerated thereby
KR20180068735A (en) 2016-12-14 2018-06-22 현대자동차주식회사 Cooling apparatus for after treatment system using cooling fan of engine and cooling method for after treatment system using the same

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