KR20090128699A - Diesel particulate filter - Google Patents

Diesel particulate filter Download PDF

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Publication number
KR20090128699A
KR20090128699A KR1020080054575A KR20080054575A KR20090128699A KR 20090128699 A KR20090128699 A KR 20090128699A KR 1020080054575 A KR1020080054575 A KR 1020080054575A KR 20080054575 A KR20080054575 A KR 20080054575A KR 20090128699 A KR20090128699 A KR 20090128699A
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South Korea
Prior art keywords
filter
casing
inner tube
baffle
coupling
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KR1020080054575A
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Korean (ko)
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KR100981979B1 (en
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정대진
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세종공업 주식회사
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Priority to KR1020080054575A priority Critical patent/KR100981979B1/en
Publication of KR20090128699A publication Critical patent/KR20090128699A/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
    • 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1827—Sealings specially adapted for exhaust systems
    • 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
    • F01N3/033—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 in combination with other devices
    • F01N3/035—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 in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate 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
    • F01N3/10—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
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/30—Removable or rechangeable blocks or cartridges, e.g. for 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides

Abstract

PURPOSE: A diesel particulate filter is provided to fasten the coupling ends of an inner pipe and a casing securely and improve airtightness by interposing a sealing member in the coupling part of a filter unit and the casing. CONSTITUTION: A diesel particulate filter comprises a casing(10) and a filter unit(20). The casing has a hollow is formed and first and second openings on both ends thereof. A baffle is formed inside the casing and includes a penetrated joint. The filter unit is removably connected to the hollow of the casing, and includes an inlet through which exhaust gas flows in.

Description

디젤 입자상 물질 제거용 필터{DIESEL PARTICULATE FILTER}Diesel particulate removal filter {DIESEL PARTICULATE FILTER}

본 발명은 디젤 입자상물질 제거용 필터에 관한 것으로, 보다 상세하게 케이싱에서 필터유닛을 분리함으로써 필터유닛의 청소 내지 교체 수리 등을 원활하게 할 수 있는 디젤 입자상물질 제거용 필터에 관한 것이다. The present invention relates to a filter for removing diesel particulate matter, and more particularly, to a filter for removing diesel particulate matter that can facilitate cleaning, replacement, and the like of a filter unit by separating the filter unit from a casing.

차량의 배기가스라 함은, 엔진으로부터 연소된 혼합기가 배기관을 통해 대기 중으로 방출되는 가스를 말한다. 이러한 배기가스는 주로 일산화탄소(C0), 질소산화물(NOx), 미연소탄화수소(HC) 등의 유해물질을 포함하고 있다. The exhaust gas of a vehicle refers to a gas in which a mixer combusted from an engine is released into the atmosphere through an exhaust pipe. The exhaust gas mainly contains harmful substances such as carbon monoxide (C0), nitrogen oxides (NOx), and unburned hydrocarbons (HC).

한편, 디젤엔진 차량은 연비, 출력면에서 우수함에도 불구하고 가솔린엔진과 달리 배기가스 내에 질소산화물과 입자상 물질(PM; Particulate Matter)이 상당히 많이 함유되어 있다. 디젤차량에 있어서 공기가 대부분의 운전조건에서 충분한 상태로 연소되기 때문에 CO와 HC는 가솔린 차량에 비해 아주 적게 배출되지만, NOx와 입자상물질(매연)이 많이 배출된다. On the other hand, although diesel engine vehicles are excellent in terms of fuel efficiency and power output, unlike gasoline engines, a large amount of nitrogen oxides and particulate matter (PM) are contained in the exhaust gas. In diesel vehicles, CO and HC are emitted much less than gasoline vehicles because the air is combusted in most operating conditions, but NOx and particulate matter (soot) are emitted.

따라서, 디젤자동차 배기규제의 주요한 대상물질은 질소산화물(NOx)와 입자상물질(PM)이고, 이의 대응기술로는 연료분사시기의 지연과 배기가스 재순환장치(Exhaust Gas Recirculation)에 의한 질소산화물의 농도저감기술과, 입자상물질 을 저감하기 위한 엔진의 연소성능 개선 및 개량기술 등이 있다. 즉, 디젤 자동차 배기규제의 구체적인 대응책으로 엔진의 개량과 후처리 기술로 구분되고 있는데, 우선 디젤자동차의 엔진 개량기술로는 연료실 개량, 흡기계 개량, 연료분사계 개량, 배기가스 재순환장치 등이 적용 또는 개발되고 있다. 또한, 후처리기술로는 입자상물질(PM) 중 고비점 탄화수소를 정화하기 위한 산화촉매, 과잉산소분위기 하에서 질소산화물(NOx)을 분해 또는 환원하는 DeNOx 촉매, 입자상물질(PM)을 걸러주는 디젤 입자상물질 제거용 필터(Diesel Particulate Filter; 이하 DPF라 함) 등이 있다. Therefore, the main targets of diesel vehicle exhaust regulation are nitrogen oxides (NOx) and particulate matter (PM), and its countermeasures include the delay of fuel injection timing and the concentration of nitrogen oxides by exhaust gas recirculation. Abatement techniques, and improved combustion performance and improved techniques for reducing particulate matter. In other words, the engine countermeasures of diesel vehicle exhaust regulation are classified into engine improvement and aftertreatment technology. First, engine improvement technology of diesel vehicle includes improvement of fuel chamber, intake system improvement, fuel injection system improvement, and exhaust gas recirculation system. Is being applied or developed. In addition, the post-treatment technology includes an oxidation catalyst for purifying high-boiling hydrocarbons in particulate matter (PM), a DeNOx catalyst for decomposing or reducing nitrogen oxides (NOx) in an excess oxygen atmosphere, and a diesel particulate form for filtering particulate matter (PM). And a diesel particulate filter (hereinafter referred to as DPF).

이러한 DPF는 입자상물질(PM)을 확실하게 포집함으로써 배기가스의 배출량을 줄일 수 있다는 장점이 있지만, 시간의 경과에 따른 DPF에 포집된 입자상물질의 증가로 인해 배출가스의 배압이 증가하여 엔진에 부담을 줄 수 있고, 이에 DPF 내에 포집된 입자상물질을 연소시켜 재생하는 방식이 DPF의 성능을 좌우하는 중요한 요인이 된다. 이러한 DPF의 재생방식에는 자연재생, 강제재생, 복합재생 등과 같이 다양한 방식이 있었다. This DPF has the advantage of reducing emissions of exhaust gas by reliably trapping particulate matter (PM), but the back pressure of the exhaust gas increases due to the increase of particulate matter trapped in the DPF over time, burdening the engine In this regard, the method of burning and regenerating particulate matter trapped in the DPF is an important factor that determines the performance of the DPF. There are various types of DPF regeneration methods such as natural regeneration, forced regeneration, and complex regeneration.

하지만, DPF 내에 포집된 입자상물질은 그 재생에 의해 완전히 제거되지 않으면서 DPF의 필터내에 잔류하고, 특히 오일성분의 잔류물은 DPF 내부를 막음으로써 엔진에 큰 부담을 줄 수 있다. However, particulate matter trapped in the DPF remains in the filter of the DPF without being completely removed by its regeneration, and in particular, oily residues can put a heavy burden on the engine by blocking the inside of the DPF.

이에 본 발명은 상기와 같은 점을 감안하여 안출한 것으로, 케이싱에서 필터유닛을 분리함으로써 필터유닛 내에 있는 포집잔류물의 청소 등을 보다 용이하게 할 수 있는 디젤 입자상물질 제거용 필터를 제공하는 데 그 목적이 있다. Accordingly, the present invention has been made in view of the above-mentioned matters, and by separating the filter unit from the casing, the object of the present invention is to provide a filter for removing diesel particulate matter that can more easily clean the collected residues in the filter unit. There is this.

또한, 본 발명은 필터유닛과 케이싱의 결합부분에 실링부재를 개재시킴으로써 그 기밀성을 확실하게 보장할 수 있는 디젤 입자상물질 제거용 필터를 제공하는 데 그 목적이 있다. In addition, an object of the present invention is to provide a filter for removing diesel particulate matter that can ensure the airtightness by interposing a sealing member in a coupling portion of the filter unit and the casing.

상기와 같은 목적을 달성하기 위한 본 발명의 디젤 입자상물질 제거용 필터는, Diesel particulate filter of the present invention for achieving the above object,

내부에 중공부를 가지고, 양단에 제1 및 제2 개구를 가진 케이싱; 및 A casing having a hollow inside and having first and second openings at both ends; And

상기 케이싱 내의 중공부에 분리가능하게 결합되고, 배기가스가 유입되는 유입구를 가진 필터유닛을 포함한다.And a filter unit detachably coupled to the hollow part in the casing and having an inlet through which exhaust gas is introduced.

상기 케이싱의 내부에는 배플이 형성되고, 상기 배플은 관통된 결합부를 가지며, A baffle is formed inside the casing, and the baffle has a through portion coupled thereto.

상기 필터유닛은 내관 및 외관 사이에 개재된 필터를 포함하고, 상기 내관의 일단에는 결합단부가 돌출되며, 상기 결합단부는 상기 배플의 결합부에 분리가능하게 끼움결합된다. The filter unit includes a filter interposed between the inner tube and the outer tube, one end of the inner tube protrudes, the coupling end is detachably fitted to the coupling portion of the baffle.

상기 필터유닛의 결합단부 및 상기 케이싱의 결합부 사이에는 환형의 실링부 재가 개재되고, 상기 환형의 실링부재는 탄성을 가진 금속재질의 와이어메쉬로 이루어질 수 있다. An annular sealing member is interposed between the coupling end of the filter unit and the coupling part of the casing, and the annular sealing member may be made of a wire mesh of elastic metal.

상기 케이싱은 내부에 중공부를 가진 몸체부 및 상기 몸체부의 일단에 구비된 원추부를 포함하고, The casing includes a body portion having a hollow portion therein and a cone portion provided at one end of the body portion,

상기 몸체부와 원추부 사이의 내부에는 배플이 설치되고, 상기 배플은 그 중심부에 결합공을 가지며, 상기 배플의 결합공 가장자리에는 환형의 결합부가 형성되고, 상기 결합부의 주변에는 복수의 배출공이 원호상으로 형성된다. A baffle is installed between the body and the cone, and the baffle has a coupling hole at its center, and an annular coupling portion is formed at an edge of the coupling hole of the baffle, and a plurality of discharge holes are formed around the coupling portion. It is formed into an arc.

상기 내관은 중공부를 가지고, 상기 내관의 측면에는 복수의 통로가 형성되며, 상기 내관의 일단은 폐쇄되고, 상기 내관의 타단은 개방되며, 상기 내관의 외주면에 필터가 설치되고, 상기 필터의 외주면은 외관에 의해 지지되며, 상기 외관은 복수의 통로를 가지고, 상기 외관의 외주면과 상기 케이싱의 내주면 사이에는 배출통로가 형성된다. The inner tube has a hollow portion, a plurality of passages are formed on the side of the inner tube, one end of the inner tube is closed, the other end of the inner tube is opened, the filter is installed on the outer peripheral surface of the inner tube, the outer peripheral surface of the filter Supported by the appearance, the appearance has a plurality of passages, and a discharge passage is formed between the outer circumferential surface of the exterior and the inner circumferential surface of the casing.

상기 내관의 일단 및 필터의 일단은 제1단부플레이트에 의해 폐쇄되고, 상기 필터의 타단은 제2단부플레이트에 의해 폐쇄된다. One end of the inner tube and one end of the filter are closed by the first end plate, and the other end of the filter is closed by the second end plate.

이상과 같은 본 발명에 의하면, 케이싱에서 필터유닛을 분리함으로써 필터유닛 내에 있는 포집잔류물의 청소 등을 보다 용이하게 할 수 있다. According to the present invention as described above, by separating the filter unit from the casing, it is possible to more easily clean the collected residues in the filter unit.

또한, 본 발명은 필터유닛과 케이싱의 결합부분에 실링부재를 개재시킴으로써 그 기밀성을 확실하게 보장할 수 있다. In addition, the present invention can reliably ensure the airtightness by interposing a sealing member in the coupling portion of the filter unit and the casing.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 내지 도 3은 본 발명의 일 실시예에 따른 디젤 입자상물질 제거용 필터를 도시한다. 1 to 3 show a diesel particulate filter for removing according to an embodiment of the present invention.

도시된 바와 같이, 본 발명은 차량의 배기계 상에 설치되는 케이싱(10) 및 상기 케이싱(10) 내에 분리가능하게 결합되는 필터유닛(20)을 포함한다. As shown, the present invention includes a casing 10 installed on an exhaust system of a vehicle and a filter unit 20 detachably coupled within the casing 10.

케이싱(10)은 도 2에 도시된 바와 같이, 내부에 중공부를 가진 원통형의 몸체부(11)를 포함하고, 몸체부(11)의 양단에 제1 및 제2 개구(12, 13)가 형성된다. 제1개구(12)에는 원추부(12b)가 형성되고, 이 원추부(12b)의 단부에는 제1플랜지가(12a)가 형성되며, 제1플랜지(12a)는 배기계의 파이프측에 결합된다. 원추부(12b)와 몸체부(11) 사이의 내부에는 배플(14)이 설치되고, 배플(14)은 그 중심부에 결합공(14a)을 가지며, 이 결합공(14a)의 가장자리에는 환형의 결합부(14b)가 원추부(12b)를 향해 돌출된다. 그리고, 배플(14)의 결합공(14a) 주변에는 복수의 배출공(14c)이 원호상으로 형성되어 있다. 제2개구(13)의 주변에는 필터유닛(20)이 결합되는 제2플랜지(13a)가 형성된다.As shown in FIG. 2, the casing 10 includes a cylindrical body portion 11 having a hollow portion therein, and first and second openings 12 and 13 are formed at both ends of the body portion 11. do. A cone 12b is formed at the first opening 12, and a first flange 12a is formed at the end of the cone 12b, and the first flange 12a is coupled to the pipe side of the exhaust system. . A baffle 14 is installed between the cone portion 12b and the body portion 11, and the baffle 14 has a coupling hole 14a at the center thereof, and an annular shape is formed at the edge of the coupling hole 14a. The engaging portion 14b protrudes toward the conical portion 12b. The plurality of discharge holes 14c are formed in an arc shape around the coupling hole 14a of the baffle 14. A second flange 13a to which the filter unit 20 is coupled is formed around the second opening 13.

필터유닛(20)은 내부에 중공부(21a)를 가진 내관(21), 내관(21)의 외주면에 설치된 필터(22), 필터(22)의 외주면을 지지하는 외관(23), 내관(21)의 일단에 배치된 결합단부(24), 내관(21)의 타단에 구비된 연결플랜지(25)을 포함한다. The filter unit 20 includes an inner tube 21 having a hollow portion 21a therein, a filter 22 installed on an outer circumferential surface of the inner tube 21, an outer 23 supporting the outer circumferential surface of the filter 22, and an inner tube 21. Coupling end 24 disposed at one end of the), and the connection flange 25 provided at the other end of the inner tube (21).

내관(21)의 중공부(21a)는 그 일단이 폐쇄되고, 그 타단에 개구(21c)가 형성되며, 이 개구(21c)는 배기가스가 유입되는 유입구(21c)가 된다. 내관(21)의 내경 면에는 복수의 통로(21b)가 형성되고, 이 복수의 통로(21b)를 통해 배기가스가 필터(22) 내로 유입된다. One end of the hollow portion 21a of the inner tube 21 is closed, and an opening 21c is formed at the other end thereof, and the opening 21c is an inlet 21c through which exhaust gas flows. A plurality of passages 21b are formed on the inner diameter surface of the inner tube 21, and exhaust gas flows into the filter 22 through the plurality of passages 21b.

필터(22)는 메탈 폼 필터(metal foam filter), 세라믹 필터(ceramic filter), SiC필터, 메탈 파우더 필터(metal powder filter) 등과 같이 다양한 종류의 필터로 구성되고, 유입된 배기가스 내의 입자상물질을 포집한다. The filter 22 is composed of various types of filters such as metal foam filter, ceramic filter, SiC filter, metal powder filter, and the like, and filters particulate matter in the inflow exhaust gas. Collect.

외관(23)은 그 외주면이 케이싱(10)의 내주면과 소정 간격으로 이격됨으로써 정화된 배기가스의 배출통로(23a)를 형성한다. 그리고, 외관(23)은 필터(22)의 외주면을 감싸면서 필터(22)을 지지하고, 복수의 통로(23b)를 가진다. 이 복수의 통로(23b)를 통해 배기가스는 배출통로(23a)측으로 흐른다. The exterior 23 has an outer circumferential surface spaced apart from the inner circumferential surface of the casing 10 at a predetermined interval to form a discharge passage 23a of the purified exhaust gas. The exterior 23 supports the filter 22 while surrounding the outer circumferential surface of the filter 22 and has a plurality of passages 23b. The exhaust gas flows toward the discharge passage 23a through the plurality of passages 23b.

결합단부(24)는 내관(21)의 일단에서 연장되고, 케이싱(10)의 결합부(14b)에 분리가능하게 끼움결합된다. 특히, 필터유닛(20)의 결합단부(24) 및 케이싱(10)의 결합부(14b) 사이에는 환형의 실링부재(29)가 결합되고, 이 환형의 실링부재(29)는 스테인레스 등과 같이 탄성을 가진 금속재질의 와이어메쉬로 이루어질 수 있다. 이 실링부재(29)에 의해 필터유닛(20)의 결합단부(24)와 배플(14)의 결합부(14a) 사이에 견고한 결합력 및 밀봉성을 부여할 수 있다. The coupling end 24 extends from one end of the inner tube 21 and is detachably fitted to the coupling portion 14b of the casing 10. In particular, an annular sealing member 29 is coupled between the coupling end 24 of the filter unit 20 and the coupling portion 14b of the casing 10, and the annular sealing member 29 is elastic such as stainless. It may be made of a metal wire mesh with a. The sealing member 29 can impart a firm bonding force and sealing property between the coupling end portion 24 of the filter unit 20 and the coupling portion 14a of the baffle 14.

연결플랜지(25)는 내관(21)의 타단에 구비되고, 이 연결플랜지(25)는 배기계의 파이프측에 밀봉적으로 결합된다. The connecting flange 25 is provided at the other end of the inner tube 21, and the connecting flange 25 is sealingly coupled to the pipe side of the exhaust system.

제1단부플레이트(26)는 필터(22)의 일단 및 내관(21)의 일단을 폐쇄하고, 제2단부플레이트(27)는 필터(22)의 타단을 폐쇄한다. The first end plate 26 closes one end of the filter 22 and one end of the inner tube 21, and the second end plate 27 closes the other end of the filter 22.

제1단부플레이트(26)는 보강리브(26a)가 형성되고, 이 보강리브(26a)에 의해 소음 내지 진동에 대한 내진강성이 보강될 수 있다. The first end plate 26 has a reinforcing rib 26a formed therein, and the reinforcing rib 26a may be reinforced with vibration resistance against noise or vibration.

제2단부플레이트(27)는 그 외주부에 결합플랜지(27a)가 구비되고, 이 결합플랜지(27a)는 케이싱(10)의 제2플랜지(13a)에 복수의 체결구를 통해 결합됨으로써 케이싱(10)의 제2개구(13)를 부분적으로 폐쇄한다. The second end plate 27 is provided with a coupling flange 27a at an outer circumference thereof, and the coupling flange 27a is coupled to the second flange 13a of the casing 10 through a plurality of fasteners, thereby providing a casing 10. The second opening 13 of) is partially closed.

이상과 같이 구성된 본 발명의 작용을 다음과 같이 설명한다. The operation of the present invention configured as described above will be described as follows.

내관(21)의 일단 개구(21c)를 통해 배기가스가 유입되면, 배기가스는 필터(21)측으로 유입되고, 배기가스 내의 입자상물질 또는 이물질 등이 필터(21) 내의 기공측에 포집됨으로써 정화된다. 이렇게 정화된 배기가스는 외관(23)의 통로(23b) 및 배출통로(23a)를 통과한 후에 배플(14)의 배출공(14a)측으로 유동하고, 배플(14)의 배출공(14a)을 통과한 배기가스는 원추부(12b)의 내경면을 따라 유동하여 제1개구(12)를 통해 배출된다. When the exhaust gas flows in through the opening 21c of the inner tube 21, the exhaust gas flows into the filter 21 side, and the particulate matter or the foreign matter in the exhaust gas is collected by the pore side in the filter 21 and purified. . The exhaust gas thus purified passes through the passage 23b and the discharge passage 23a of the exterior 23 and then flows to the discharge hole 14a side of the baffle 14, and the discharge hole 14a of the baffle 14 is moved. The exhaust gas passed through flows along the inner diameter surface of the conical portion 12b and is discharged through the first opening 12.

이상과 같은 본 발명은, 필터유닛(20)의 결합단부(23)가 케이싱(10)의 결합부(14b)에 분리가능하게 끼움결합되고, 필터유닛(20)의 제2단부플레이트(26)가 케이싱(10)의 제2플랜지(13a)측에 분리가능하게 결합되는 구조로 이루어지고, 이에 의해 필터유닛(20)을 케이싱(10)으로부터 용이하게 분리함으로써 필터유닛(20)의 필터(22) 내의 잔류포집물에 대한 청소가 매우 용이한 장점이 있다. In the present invention as described above, the coupling end 23 of the filter unit 20 is detachably fitted to the coupling part 14b of the casing 10, and the second end plate 26 of the filter unit 20 is connected. Is detachably coupled to the second flange 13a side of the casing 10, whereby the filter 22 of the filter unit 20 is easily separated by separating the filter unit 20 from the casing 10. There is an advantage that the cleaning of the residue in the inside is very easy.

또한, 본 발명은 내관(21)의 결합단부(21a) 외주면에 탄성을 가진 실링부재(29)를 설치함으로써 내관(21)의 결합단부(21a)와 케이싱(10)의 결합부(14b)를 견고하게 결합시킬 뿐만 아니라 그 밀봉성을 확실하게 확보할 수 있는 장점이 있다. In addition, according to the present invention, the coupling end portion 21a of the inner tube 21 and the coupling portion 14b of the casing 10 are provided by providing a sealing member 29 having elasticity on the outer peripheral surface of the coupling end portion 21a of the inner tube 21. Not only firmly coupled but there is an advantage that can be securely ensured the sealing.

도 1은 본 발명의 일 실시예에 따른 디젤 입자상물질 제거용 필터를 도시한 사시도이다. 1 is a perspective view showing a diesel particulate matter removing filter according to an embodiment of the present invention.

도 2는 본 발명의 일 실시예에 따른 디젤 입자상물질 제거용 필터를 도시한 분해사시도이다. Figure 2 is an exploded perspective view showing a diesel particulate matter removing filter according to an embodiment of the present invention.

도 3은 본 발명에 의한 케이싱 부분을 도시한 분해사시도이다. Figure 3 is an exploded perspective view showing a casing portion according to the present invention.

도 4는 도 2의 화살표 A부분에서 바라본 사시도이다. 4 is a perspective view as seen from the arrow A portion of FIG.

도 5는 본 발명의 일 실시예에 따른 디젤 입자상물질 제거용 필터를 도시한 측단면도이다. Figure 5 is a side cross-sectional view showing a filter for removing diesel particulate matter according to an embodiment of the present invention.

* 도면의 주요 부분에 대한 부호의 간단한 설명 *Brief description of symbols for the main parts of the drawings

10: 케이싱 11: 몸체부10: casing 11: body

12, 13: 제1 및 제2 개구 14: 배플12, 13: first and second openings 14: baffles

20: 필터유닛 21: 내관20: filter unit 21: inner tube

22: 필터 23: 외관22: filter 23: appearance

24: 결합단부 25: 연결플랜지24: coupling end 25: connection flange

Claims (6)

내부에 중공부를 가지고, 양단에 제1 및 제2 개구를 가진 케이싱; 및 A casing having a hollow inside and having first and second openings at both ends; And 상기 케이싱 내의 중공부에 분리가능하게 결합되고, 배기가스가 유입되는 유입구를 가진 필터유닛을 포함하는 것을 특징으로 하는 디젤 입자상물질 제거용 필터.And a filter unit separably coupled to the hollow part of the casing and having an inlet through which exhaust gas is introduced. 제1항에 있어서, The method of claim 1, 상기 케이싱의 내부에는 배플이 형성되고, 상기 배플은 관통된 결합부를 가지며, A baffle is formed inside the casing, and the baffle has a through portion coupled thereto. 상기 필터유닛은 필터를 포함하고, 상기 필터는 내관 및 외관 사이에 개재되어 지지되며, 상기 내관의 일단에는 결합단부가 돌출되고, 상기 결합단부는 상기 배플의 결합부에 분리가능하게 끼움결합되는 것을 특징으로 하는 디젤 입자상물질 제거용 필터.The filter unit includes a filter, wherein the filter is interposed between the inner tube and the exterior is supported, one end of the inner tube protrudes, the coupling end is detachably fitted to the engaging portion of the baffle A diesel particulate filter. 제2항에 있어서, The method of claim 2, 상기 필터유닛의 결합단부 및 상기 케이싱의 결합부 사이에는 환형의 실링부재가 개재되고, 상기 환형의 실링부재는 탄성을 가진 금속재질의 와이어메쉬로 이루어지는 것을 특징으로 하는 디젤 입자상물질 제거용 필터.An annular sealing member is interposed between the coupling end of the filter unit and the coupling portion of the casing, wherein the annular sealing member is made of a wire mesh of elastic metal material. 제3항에 있어서, The method of claim 3, 상기 케이싱은 내부에 중공부를 가진 몸체부 및 상기 몸체부의 일단에 구비된 원추부를 포함하고, The casing includes a body portion having a hollow portion therein and a cone portion provided at one end of the body portion, 상기 몸체부와 원추부 사이의 내부에는 배플이 설치되고, 상기 배플은 그 중심부에 결합공을 가지며, 상기 배플의 결합공 가장자리에는 환형의 결합부가 형성되고, 상기 결합부의 주변에는 복수의 배출공이 원호상으로 형성되는 것을 특징으로 하는 디젤 입자상물질 제거용 필터.A baffle is installed between the body and the cone, and the baffle has a coupling hole at its center, and an annular coupling portion is formed at an edge of the coupling hole of the baffle, and a plurality of discharge holes are formed around the coupling portion. Diesel particulate matter removal filter, characterized in that formed in an arc shape. 제4항에 있어서, The method of claim 4, wherein 상기 내관은 중공부를 가지고, 상기 내관의 측면에는 복수의 통로가 형성되며, 상기 내관의 일단은 폐쇄되고, 상기 내관의 타단은 개방되며, 상기 내관의 외주면에 필터가 설치되고, 상기 필터의 외주면은 외관에 의해 지지되며, 상기 외관은 복수의 통로를 가지고, 상기 외관의 외주면과 상기 케이싱의 내주면 사이에는 배출통로가 형성되는 것을 특징으로 하는 디젤 입자상물질 제거용 필터.The inner tube has a hollow portion, a plurality of passages are formed on the side of the inner tube, one end of the inner tube is closed, the other end of the inner tube is opened, the filter is installed on the outer peripheral surface of the inner tube, the outer peripheral surface of the filter It is supported by the appearance, the appearance has a plurality of passages, diesel particulate filter for removing particulate matter, characterized in that the discharge passage is formed between the outer peripheral surface of the outer casing and the inner peripheral surface of the casing. 제5항에 있어서, The method of claim 5, 상기 내관의 일단 및 필터의 일단은 제1단부플레이트에 의해 폐쇄되고, 상기 필터의 타단은 제2단부플레이트에 의해 폐쇄되는 것을 특징으로 하는 디젤 입자상물질 제거용 필터.One end of the inner tube and one end of the filter is closed by the first end plate, and the other end of the filter is a diesel particulate matter removal filter, characterized in that closed by the second end plate.
KR1020080054575A 2008-06-11 2008-06-11 Diesel particulate filter KR100981979B1 (en)

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CN105971691A (en) * 2016-07-25 2016-09-28 无锡市永亿精密铸造有限公司 Automobile exhaust filtering device

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KR101591350B1 (en) * 2014-06-10 2016-02-03 (주)엔비에너지 Particulate exhaust reduction device and sensing system for particulate exhaust reduction having the same

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JP2001073742A (en) * 1999-06-29 2001-03-21 Sumitomo Electric Ind Ltd Particulate trap for diesel engine
JP3549858B2 (en) 2001-06-25 2004-08-04 エフ・イー・ティー・パワークラフト株式会社 Exhaust gas purification device
JP4035578B2 (en) 2002-03-29 2008-01-23 株式会社エス・アンド・エスホールディングス Particulate filter for diesel engine
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CN105971691A (en) * 2016-07-25 2016-09-28 无锡市永亿精密铸造有限公司 Automobile exhaust filtering device
CN105971691B (en) * 2016-07-25 2018-07-06 无锡市永亿精密铸造有限公司 A kind of automobile tail gas filtering device

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