KR100559658B1 - Smoke filtering and removal device of diesel engine - Google Patents

Smoke filtering and removal device of diesel engine Download PDF

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KR100559658B1
KR100559658B1 KR1020030087231A KR20030087231A KR100559658B1 KR 100559658 B1 KR100559658 B1 KR 100559658B1 KR 1020030087231 A KR1020030087231 A KR 1020030087231A KR 20030087231 A KR20030087231 A KR 20030087231A KR 100559658 B1 KR100559658 B1 KR 100559658B1
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filter
soot
particulate matter
wall flow
diesel engine
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KR1020030087231A
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Korean (ko)
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KR20050053972A (en
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조원진
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현대자동차주식회사
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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
    • F01N3/0233—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 periodically cleaning filter by blowing a gas through the filter in a direction opposite to exhaust flow, e.g. exposing filter to engine air intake
    • 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
    • F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
    • F01N2430/10—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by modifying inlet or exhaust valve timing
    • 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
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/06—By-pass systems
    • F01N2550/12—By-pass systems of 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging

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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)

Abstract

본 발명은 디젤엔진의 매연여과 및 제거장치에 관한 것으로서, 특히 매연여과용 벽유로형필터가 내장된 매연여과기를 배기관 끝단에 설치하여 엔진 고속구동시 배기가스에 포함된 매연이 벽유로형필터에 의해 여과되도록 하고, 입자상물질 제거시기가 도래하였을때 엔진 저속구동시 매연여과기의 입구측으로부터 우회하여 공급된 배기가스를 벽유로형필터로 분사하여 벽유로형필터에 붙어있는 입자상물질이 분리되도록 하는 회전분사관을 벽유로형필터의 후단에 형성하되, 매연여과기의 입구측 하단에는 분리된 입자상물질을 포집하여 디젤엔진의 흡기측으로 송출하는 수단을 형성하여 입자상물질이 연소 처리되도록 하므로서, 디젤엔진에서 배출되는 배기가스에 포함되어 있는 매연(입자상물질)을 효과적으로 제거하면서 필터의 수명을 연장시킬 수 있도록 한 디젤엔진의 매연여과 및 제거장치에 관한 것이다.The present invention relates to a soot filtration and removal device of a diesel engine, and in particular, a soot filter having a soot filtration wall flow filter is installed at the end of an exhaust pipe so that the soot contained in exhaust gas at the high speed of the engine is applied to the wall flow filter. When the particulate matter removal time arrives, the exhaust gas bypassed from the inlet side of the smoke filter is injected into the wall flow filter to separate the particulate matter adhered to the wall flow filter. In the diesel engine, a rotary injection pipe is formed at the rear end of the wall flow filter, and a means for collecting the separated particulate matter at the inlet side bottom of the soot filter and sending it to the intake side of the diesel engine is used to burn the particulate matter. Extends the life of filter while effectively removing soot (particulate matter) contained in exhaust gas. Can be one of the particulate filters and removal of the device so that the diesel engine.

디젤엔진, 입자상물질, 매연, ECU, 우회통로, 회전분사관Diesel engine, particulate matter, soot, ECU, bypass passage, rotary injection pipe

Description

디젤엔진의 매연여과 및 제거장치{Smoke filtering and removal device of diesel engine}Smoke filtering and removal device of diesel engine

도 1 은 본 발명의 디젤엔진의 매연여과 및 제거장치를 보인 도면.1 is a view showing a soot filtration and removal device of the diesel engine of the present invention.

도 2 는 본 발명의 요부를 상세히 보인 도면.Figure 2 shows the main part of the present invention in detail.

도 3 은 본 발명에 적용된 회전분사관을 보인 도면.Figure 3 is a view showing a rotary spray pipe applied to the present invention.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 디젤엔진 2 : 배기관1: diesel engine 2: exhaust pipe

3 : 매연여과기 4 : 벽유로형필터3: soot filter 4: wall flow filter

5 : 입구 6 : 절환밸브5: inlet 6: switching valve

7 : 우회통로 8 : 안전밸브7: bypass passage 8: safety valve

9 : 회전분사관 10 : 분사구9: rotary injection pipe 10: injection hole

11 : 구동모터 12 : 집진실11: drive motor 12: dust collecting chamber

13 : 송출관 14 : 개폐밸브13: outgoing pipe 14: on-off valve

15 : ECU15: ECU

본 발명은 디젤엔진의 매연여과 및 제거장치에 관한 것으로서, 특히 디젤엔진에서 배출되는 배기가스에 포함되어 있는 매연(입자상물질)을 효과적으로 제거하면서 필터의 수명을 연장시킬 수 있도록 한 디젤엔진의 매연여과 및 제거장치에 관한 것이다.The present invention relates to a soot filtration and removal device of a diesel engine, in particular to the soot filtration of a diesel engine that can effectively extend the life of the filter while effectively removing the soot (particulate matter) contained in the exhaust gas discharged from the diesel engine. And a removal device.

디젤엔진에서 배출되는 배기가스중의 매연(입자상물질)은 대기오염에 가장 심각한 영향을 끼치는 것으로 알려져 있으며, 이러한 매연을 제거하기 위한 장치로서 필터를 이용한 전기히터 산화방식, 버너산화방식, 첨가제산화방식 등을 적용한 여러가지의 매연제거장치가 제공되고 있다.The soot (particulate matter) in the exhaust gas emitted from diesel engines is known to have the most serious effect on air pollution.It is an apparatus for removing the soot.It is an electric heater oxidation method, a burner oxidation method, an additive oxidation method using a filter. Various soot removal apparatuses to which the present invention is applied are provided.

그러나, 종래의 매연제거장치들은 구조가 매우 복잡하여 내구성이 높지 못할 뿐만 아니라 가격이 워낙 고가여서 차량에 적용하기가 어려운 문제점이 있었고, 또한 그 기능적인 측면에서도 매연을 효과적으로 제거하지 못하여 만족스럽지 못하게되는 문제점이 있었다.However, the conventional smoke removal devices have a problem that it is difficult to apply them to a vehicle because the structure is very complicated and not only high durability but also the price is so expensive, and also in the functional aspect is not effective to remove the smoke is not satisfied. There was a problem.

따라서 상기 문제점을 해결하기 위한 본 발명은 매연여과용 벽유로형필터가 내장된 매연여과기를 배기관 끝단에 설치하여 엔진 고속구동시 배기가스에 포함된 매연이 벽유로형필터에 의해 여과되도록 하고, 입자상물질 제거시기가 도래하였을때 엔진 저속구동시 매연여과기의 입구측으로부터 우회하여 공급된 배기가스를 벽유로형필터로 분사하여 벽유로형필터에 붙어있는 입자상물질이 분리되도록 하는 회전분사관을 벽유로형필터의 후단에 형성하되, 매연여과기의 입구측 하단에는 분리된 입자상물질을 포집하여 디젤엔진의 흡기측으로 송출하는 수단을 형성하여 입자 상물질이 연소 처리되도록 하므로서, 디젤엔진에서 배출되는 배기가스에 포함되어 있는 매연(입자상물질)을 효과적으로 제거하면서 벽유로형필터의 수명을 연장시킬 수 있도록 한 디젤엔진의 매연여과 및 제거장치를 제공함을 목적으로 한다.Therefore, in order to solve the above problems, the present invention installs a soot filter equipped with a soot filtration wall flow filter at the end of the exhaust pipe so that the smoke contained in the exhaust gas is filtered by the wall flow filter at high speed of the engine, When the material removal time has arrived, the rotary flow pipe which injects the exhaust gas bypassed from the inlet side of the exhaust filter into the wall flow filter to separate the particulate matter attached to the wall flow filter at the low speed of the engine. It is formed at the rear end of the type filter, and at the bottom of the inlet side of the soot filter, it forms a means for collecting the separated particulate matter and sending it to the intake side of the diesel engine so that the particulate matter is combusted, so that the exhaust gas discharged from the diesel engine It is possible to extend the life of the wall flow filter while effectively removing the soot (particulate matter) contained. And a particulate filter and a removal device of a diesel engine for the purpose of providing.

상기 목적달성을 위한 본 발명은,The present invention for achieving the above object,

매연여과용 벽유로형필터가 내장되어 있고, 디젤엔진의 배기관 끝단에 설치되는 매연여과기와;A soot filter having a soot filtration wall flow filter installed at an end of an exhaust pipe of a diesel engine;

다수의 분사구를 구비한 상태로 벽유로형필터의 후단에 회전 가능하게 설치되는 회전분사관과;A rotary injection pipe rotatably installed at a rear end of the wall flow filter with a plurality of injection holes;

ECU의 제어에 따라 상기 회전분사관을 회전시키는 구동모터와;A drive motor for rotating the rotary injection pipe under control of an ECU;

상기 매연여과기의 입구 측 전방과 상기 회전분사관을 상호 연결하는 우회통로와;A bypass passage interconnecting the inlet side front of the soot filter and the rotary spray pipe;

상기 매연여과기의 입구 측에 설치되고, ECU의 제어에 따라 절환되어 매연여과기의 입구와 우회통로를 선택적으로 개방하는 절환밸브와;A switching valve installed at the inlet side of the soot filter and switched under the control of the ECU to selectively open the inlet and the bypass passage of the soot filter;

평상시 절환밸브를 우회통로 측으로 절환시켜 배기가스가 벽유로형필터를 통과하도록 하고, 필터에 붙어있는 입자상물질 제거시기가 도래하였을때 엔진 저속 회전시 절환밸브를 매연여과기 입구 측으로 절환시켜 배기가스가 우회통로를 통해 회전분사관으로 공급되도록 함과 동시에 구동모터를 구동시켜 회전분사관이 회전되도록 하여 배기가스가 분사구를 통해 벽유로형필터로 분사되어 벽유로형필터에 붙어있는 입자상물질이 분리되도록 하는 ECU; 로 구성된 것을 특징으로 한다.Normally, the switching valve is switched to the bypass passage so that the exhaust gas passes through the wall flow filter, and when the removal time of particulate matter attached to the filter arrives, the switching valve is switched to the soot filter inlet when the engine rotates at low speed, and the exhaust gas is bypassed. At the same time, the rotary injection pipe is rotated by driving the driving motor to supply the rotary injection pipe through the passage so that the exhaust gas is injected into the wall flow filter through the injection hole to separate the particulate matter attached to the wall flow filter. ECU; Characterized in that consisting of.

또한, 상기 매연여과기의 입구측 하단에 설치되어 벽유로형필터로 부터 분리 된 입자상물질이 집진되어지는 집진실과;In addition, the dust collecting chamber is installed at the lower end of the inlet side of the soot filter and the particulate matter separated from the wall flow filter is collected;

상기 집진실과 디젤엔진의 흡기계를 연결하여 집진실에 모아진 입자상물질이 흡기측으로 이송되도록 하는 송출관과;A discharge pipe connecting the dust collecting chamber and the intake machine of the diesel engine to transfer the particulate matter collected in the dust collecting chamber to the intake side;

ECU의 제어신호에 따라 상기 송출관을 선택적으로 개방시키는 개폐밸브를 더 포함하여 구성되고,It further comprises an on-off valve for selectively opening the discharge pipe in accordance with the control signal of the ECU,

상기 ECU는 일정주기마다 엔진이 고부하상태로 운전될때 상기 개폐밸브를 개방시키는 것을 특징으로 한다.The ECU is characterized in that the on-off valve is opened when the engine is operated at a high load state at regular intervals.

이하, 첨부된 도면 도 1 내지 도 3 을 참조하여 상기 목적달성을 위한 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings Figures 1 to 3 will be described a preferred embodiment of the present invention for achieving the above object.

도면부호 1 은 디젤엔진을 나타내며, 이 디젤엔진에는 매연이 포함된 배기가스가 배출되는 배기관(2)이 형성되어 있다.Reference numeral 1 denotes a diesel engine, in which an exhaust pipe 2 through which exhaust gas containing soot is discharged is formed.

상기 배기관(2)의 끝부분에는 매연을 여과하는 벽유로형필터(4)가 내장된 매연여과기(3)가 형성되는데, 상기 벽유로형필터(4)의 후단에는 다수의 분사구(10)를 구비하고 있는 회전분사관(9)이 회전가능하게 설치되고, 이 회전분사관(9)은 ECU(15)의 제어에 의해 구동하는 구동모터(11)에서 제공되는 동력으로 회전하도록 구성된다.At the end of the exhaust pipe (2), a soot filter (3) having a wall flow filter (4) for filtering soot is formed. A plurality of injection holes (10) are formed at the rear end of the wall flow filter (4). The rotary injection pipe 9 provided is rotatably provided, and this rotary injection pipe 9 is comprised so that it may rotate by the power provided by the drive motor 11 which drives by control of ECU15.

상기 회전분사관(9)의 분사구(10)는 도 2 에 도시된 바와같이 벽유로형필터(4)의 후면에 근접되게 위치하여 후설하는 우회통로(7)를 통해 공급되는 배기가스를 벽유로형필터(4) 측으로 분사하여 벽유로형필터(4)에 붙어있는 입자 상물질(매연)이 분리되도록 한다.As shown in FIG. 2, the injection hole 10 of the rotary injection pipe 9 is located close to the rear of the wall flow filter 4 to exhaust the exhaust gas supplied through the bypass passage 7. By spraying toward the mold filter 4, particulate matter (soot) adhering to the wall flow filter 4 is separated.

매연 여과수단으로서 지그재그 형상을 갖는 벽유로형필터(4)를 사용하는 이유는 그 후방에서 배기가스를 강하게 불어주었을때 벽유로형필터(4)에 붙어있는 입자상물질이 잘 분리되기 때문이다.The reason why the wall flow filter 4 having a zigzag shape is used as the soot filtering means is that the particulate matter adhering to the wall flow filter 4 is well separated when the exhaust gas is strongly blown from the rear thereof.

한편, 상기 매연여과기(3)의 입구(5) 전방에는 배기가스를 회전분사관(9)으로 공급하는 우회통로(7)가 형성되고, 상기 입구(5) 측에는 ECU(15)의 제어에 따라 절환되어 우회통로(7) 또는 매연여과기(3)의 입구(5)를 선택적으로 개방하는 절환밸브(6)가 형성된다.Meanwhile, a bypass passage 7 is formed in front of the inlet 5 of the soot filter 3 to supply exhaust gas to the rotary injection pipe 9, and on the inlet 5 side under the control of the ECU 15. A switching valve 6 is formed which is switched to selectively open the inlet 5 of the bypass passage 7 or the soot filter 3.

그리고, 상기 매연여과기(3)의 입구(5) 측 하단에는 벽유로형필터(4)로부터 분리된 입자상물질이 집진되는 집진실(12)이 형성되고, 상기 집진실(12)은 송출관(13)에 의해 디젤엔진(1)의 흡기계와 연결되며, 상기 송출관(13)의 도중에는 ECU(15)의 제어신호에 따라 개폐되는 개폐밸브(14)가 설치된다.In addition, a dust collecting chamber 12 is formed at the lower end of the inlet 5 side of the particulate filter 3 to collect particulate matter separated from the wall flow filter 4, and the dust collecting chamber 12 may include a discharge pipe ( 13 is connected to the intake system of the diesel engine 1, and the opening and closing valve 14 is installed in the middle of the delivery pipe 13 to open and close in accordance with the control signal of the ECU (15).

한편, 본 발명에는 상기 밸브(6)(14)들과 구동모터(11)를 제어하는 ECU(15)가 구성되는데, 상기 ECU(15)는 벽유로형필터(4)에 붙어있는 입자상물질의 제거시기가 도래할때까지 절환밸브(6)를 우회통로(7) 측으로 절환시켜 매연여과기(3)의 입구(5)가 개방되도록 하므로서 디젤엔진(1)에서 배출된 배기가스가 벽유로형필터(4)를 통과하도록 하여 배기가스에 포함되어 있는 입자상물질이 벽유로형필터(4)에 의해 걸러지도록 한다.Meanwhile, the present invention includes an ECU 15 for controlling the valves 6 and 14 and the driving motor 11, wherein the ECU 15 is formed of particulate matter attached to the wall flow filter 4. The exhaust gas discharged from the diesel engine 1 flows into the wall flow filter by switching the switching valve 6 toward the bypass passage 7 until the removal time arrives, thereby opening the inlet 5 of the soot filter 3. Passing (4) allows the particulate matter contained in the exhaust gas to be filtered by the wall flow filter (4).

그리고, ECU(15)는 입자상물질의 제거시기, 더욱상세하게는 차량이 약 500Km 주행하였을때 입자상물질의 제거시기로 간주하고, 이후 차량이 저속회전(아이들상 태)할때 절환밸브(6)를 매연여과기(3)의 입구(5) 측으로 절환시킴과 동시에 구동모터(11)를 구동시켜 회전분사관(9)이 회전하도록 하므로서, 배기가스가 우회통로(7)를 통해 회전분사관(9)으로 공급되어 회전분사관(9)의 분사구(10)를 통해 벽유로형필터(4)로 강하게 분사됨에 따라 벽유로형필터(4)에 붙어있는 입자상물질이 분리되어 집진실(12)로 모아지도록 한다.Then, the ECU 15 regards the removal time of the particulate matter, more specifically, the removal time of the particulate matter when the vehicle travels about 500 km, and then the switching valve 6 when the vehicle rotates at a low speed (idle state). Is switched to the inlet (5) side of the soot filter (3) and at the same time to drive the drive motor 11 to rotate the rotary injection pipe (9), the exhaust gas is rotated through the bypass passage (7) rotary injection pipe (9) Supplied to the wall flow filter (4) through the injection port 10 of the rotary injection pipe (9) to separate the particulate matter attached to the wall flow filter (4) to the dust collecting chamber (12) To be collected.

상기 ECU(15)는 일정시간이 경과하여 집진실(12)에 입자상물질이 모아지면 구동모터(11)를 정지시켜 회전분사관(9)이 회전하지 않도록 하면서 절환밸브(6)를 우회통로(7) 측으로 절환시켜 배기가스가 다시 벽유로형필터(4)를 통과하도록 한다.The ECU 15 stops the driving motor 11 when the particulate matter collects in the dust collecting chamber 12 after a predetermined time passes so that the rotary injection pipe 9 does not rotate, and bypasses the switching valve 6. 7) to the side so that the exhaust gas passes through the wall flow filter (4) again.

이후, ECU(15)는 엔진이 고부하상태로 구동할때 개폐밸브(14)를 개방시켜 흡기부압에 의해 집진실(12)에 모아진 입자상물질이 송출관(13)을 통해 흡기측으로 공급되도록 하여 입자상물질이 공기와함께 연소실로 공급되어 연소처리되도록 하며, 상기 개폐밸브(14)를 일정시간(예를들면 약 10초)동안 개방시켜 집진실(12)에 모아진 입자상물질이 충분히 연소실로 송출되어 연소처리될 수 있도록 한다.Thereafter, the ECU 15 opens the on / off valve 14 when the engine is driven at a high load so that the particulate matter collected in the dust collecting chamber 12 by the intake negative pressure is supplied to the intake side through the delivery pipe 13 to form a particulate. The material is supplied to the combustion chamber together with the air to be combusted, and the on-off valve 14 is opened for a predetermined time (for example, about 10 seconds), and the particulate matter collected in the dust collecting chamber 12 is sufficiently delivered to the combustion chamber for combustion. To be handled.

미설명된 도면부호 8 은 배기가스압 안전밸브이다. Unexplained reference numeral 8 denotes an exhaust gas pressure safety valve.

이상에서 설명한 바와같이 본 발명은 매연여과용 벽유로형필터가 내장된 매연여과기를 배기관 끝단에 설치하여 엔진 고속구동시 배기가스에 포함된 매연이 벽유로형필터에 의해 여과되도록 하고, 입자상물질 제거시기가 도래하였을때 엔진 저속구동시 매연여과기의 입구측으로부터 우회하여 공급된 배기가스를 벽유로형필터 로 분사하여 벽유로형필터에 붙어있는 입자상물질이 분리되도록 하는 회전분사관을 벽유로형필터의 후단에 형성하되, 매연여과기의 입구측 하단에는 분리된 입자상물질을 포집하여 디젤엔진의 흡기측으로 송출하는 수단을 형성하여 입자상물질이 연소 처리되도록 하므로서, 디젤엔진에서 배출되는 배기가스에 포함되어 있는 매연(입자상물질)을 효과적으로 제거하면서 벽유로형필터의 수명을 연장시킬 수 있도록 한 디젤엔진의 매연여과 및 제거장치를 제공하는 효과를 기대할 수 있다.As described above, the present invention installs a smoke filter having a built-in wall filter for smoke filtration at the end of the exhaust pipe so that the smoke contained in the exhaust gas is filtered by the wall flow filter at high speed of the engine, and removes particulate matter. When the engine arrives at low speed, the rotary flow pipe is injected into the wall flow filter by injecting exhaust gas bypassed from the inlet side of the smoke filter into the wall flow filter to separate the particulate matter attached to the wall flow filter. At the lower end of the inlet side of the soot filter to form a means for collecting the separated particulate matter and sending it to the intake side of the diesel engine so that the particulate matter is combusted and contained in the exhaust gas discharged from the diesel engine. Diesel, which effectively removes soot (particulate matter) and extends the life of the wall-flow filter The effect of providing the spirit particulate filter, and remove the device can be expected.

Claims (2)

매연여과용 벽유로형필터(4)가 내장되어 있고 디젤엔진(1)의 배기관(2) 끝단에 설치되는 매연여과기(3)와, 다수의 분사구를 구비한 상태로 벽유로형필터(4)의 후단에 회전 가능하게 설치되는 회전분사관(9)과, ECU(15)의 제어에 따라 상기 회전분사관(9)을 회전시키는 구동모터(11)와, 상기 매연여과기(3)의 입구(5) 측에 설치되고 ECU(15)의 제어에 따라 절환되어 매연여과기(3)의 입구(5)와 우회통로(7)를 선택적으로 개방하는 절환밸브(6)와, 평상시 절환밸브(6)를 우회통로(7) 측으로 절환시켜 배기가스가 벽유로형필터(4)를 통과하도록 하고 벽유로형필터(4)에 붙어있는 입자상물질 제거시키가 도래하였을 때 엔진(1) 저속 회전시 절환밸브(6)를 매연여과기(3) 입구(5) 측으로 절환시켜 배기가스가 우회통로(7)를 통해 회전분사관(9)이 회전되도록 하여 배기가스가 분사구(10)를 통해 벽유로형필터(4)로 분사되어 벽유로형필터(4)에 붙어있는 입자상물질이 분리되도록 하는 ECU(15)를 포함하여 구성된 디젤엔진의 매연여과 및 제거장치에 있어서,A wall filter (4) with a soot filter (4) having a built-in soot filtration filter (4) installed at the end of the exhaust pipe (2) of the diesel engine (1) and a plurality of injection holes. A rotary injection pipe 9 rotatably installed at the rear end of the engine, a drive motor 11 for rotating the rotary injection pipe 9 under the control of the ECU 15, and an inlet of the smoke filter 3; 5) a switching valve 6 installed on the side and switching under the control of the ECU 15 to selectively open the inlet 5 and the bypass passage 7 of the soot filter 3, and the usual switching valve 6 Is switched to the bypass passage (7) to allow the exhaust gas to pass through the wall flow filter (4) and to remove particulate matter adhering to the wall flow filter (4), the switching valve at the low speed of the engine (1) rotation (6) is switched to the soot filter (3) inlet (5) side so that the exhaust gas is rotated through the bypass passage (7) to rotate the rotary injection pipe (9) to inject the exhaust gas In the particulate filter, and remove the device from a diesel engine is configured to include (10), ECU (15) such that is injected into the wall flow type filter 4, the particulate matter attached to the wall flow type filter (4) separated through, 상기한 매연여과기(3)의 입구측 하단에 설치되어 벽유로형필터(4)로부터 분리된 입자상물질이 집진되어지는 집진실(12)과;A dust collecting chamber 12 installed at the lower end of the inlet side of the soot filter 3 and collecting particulate matter separated from the wall flow filter 4; 상기한 집진실(12)과 디젤엔진(1)의 흡기계를 연결하여 집진실(12)에 모아진 입자상물질이 흡기측으로 이송되도록 하는 송출관(13)과;A discharge pipe 13 connecting the dust collecting chamber 12 and the intake machine of the diesel engine 1 to transfer the particulate matter collected in the dust collecting chamber 12 to the intake side; ECU(15)의 제어신호에 따라 상기 송출관(13)을 선택적으로 개방시키는 개폐밸브(14)를 더 포함하여 구성되고,It further comprises an on-off valve 14 for selectively opening the delivery pipe 13 in accordance with the control signal of the ECU 15, 상기 ECU(15)는 일정주기마다 엔진이 고부하상태로 운전될 때 상기 개폐밸브(14)를 개방시키는 것을 특징으로 하는 디젤엔진의 매연여과 및 제거장치.The ECU (15) is a soot filtration and removal device of the diesel engine, characterized in that for opening the on-off valve (14) when the engine is operated at a high load state at regular intervals. 삭제delete
KR1020030087231A 2003-12-03 2003-12-03 Smoke filtering and removal device of diesel engine KR100559658B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110748398A (en) * 2019-11-26 2020-02-04 安徽江淮汽车集团股份有限公司 Particulate trap device and engine exhaust system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110748398A (en) * 2019-11-26 2020-02-04 安徽江淮汽车集团股份有限公司 Particulate trap device and engine exhaust system

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