KR0158288B1 - Air supply unit of particulate filter system in diesel exhaust - Google Patents

Air supply unit of particulate filter system in diesel exhaust Download PDF

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Publication number
KR0158288B1
KR0158288B1 KR1019950058215A KR19950058215A KR0158288B1 KR 0158288 B1 KR0158288 B1 KR 0158288B1 KR 1019950058215 A KR1019950058215 A KR 1019950058215A KR 19950058215 A KR19950058215 A KR 19950058215A KR 0158288 B1 KR0158288 B1 KR 0158288B1
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South Korea
Prior art keywords
exhaust
diesel engine
filter
smoke reduction
reduction device
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KR1019950058215A
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Korean (ko)
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KR970044281A (en
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서정훈
윤보승
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정몽원
만도기계주식회사
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Priority to KR1019950058215A priority Critical patent/KR0158288B1/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
    • F01N3/08—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
    • F01N3/30—Arrangements for supply of additional air
    • F01N3/32—Arrangements for supply of additional air using air pump
    • F01N3/323—Electrically driven air pumps
    • 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

본 발명은 디젤 엔진 자동차에 적용되는 디젤 엔진의 배기미립자 필터링 시스템 재생용 공기공급 장치에 관한 발명으로, 특히 디젤 엔진에 있어서 매연 저감 장치에 사용되는 세라믹 필터의 재생에 필요한 에어블로워(Air Blower) 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air supply device for regenerating an exhaust particulate filtering system for a diesel engine applied to a diesel engine vehicle, and in particular, an air blower device for regenerating a ceramic filter used for a smoke reduction device in a diesel engine. It is about.

종래 디젤 엔진 차량에 사용되던 매연저감 장치는 일정형상의 격벽 단부에 히터를 설치하고 그 상부에 필터를 설치한 것으로, 히터에서 재연소시 연소 공간은 밀폐되어 있으며, 배기가스도 디젤 엔진에서 공급되는 것이므로 매연의 재연소를 위해 필요한 공기(산소가 포함된 공기)가 충분히 공급되지 않으면 매연 저감 장치의 기능이 충분히 발휘되게 되는 문제점이 있었으나, 본 발명에서는 매연저감 장치와 연통하는 원통형의 케이스내에 다수의 팬을 장착하여 상기 매연저감 장치내의 필터의 재생이 최적화되도록 하고 충분한 매연저감이 이루어지도록 하였다.The conventional smoke reduction device used in diesel engine vehicles has a heater installed at the end of a predetermined partition wall, and a filter is installed on the upper part. The combustion space is enclosed when reheating the heater, and exhaust gas is also supplied from the diesel engine. If the air (oxygen-containing air) necessary for the reburning of the smoke is not sufficiently supplied, there is a problem that the function of the smoke reduction device is sufficiently exhibited. However, in the present invention, a plurality of fans in a cylindrical case communicating with the smoke reduction device. It was installed to optimize the regeneration of the filter in the smoke reduction device and to achieve a sufficient smoke reduction.

Description

디젤엔진의 배기미립자 필터링 시스템에서 사용되는 재생용 공기공급장치Regenerative air supply system used in diesel particulate filtering system of diesel engine

제1도는 본 발명의 조립상태를 나타내는 정단면도.1 is a front sectional view showing the assembled state of the present invention.

제2도는 본 발명의 조립상태를 나타내는 일부 생략 좌측면도.2 is a partially omitted left side view showing the assembled state of the present invention.

제3도는 본 발명의 케이스 부품도로서,3 is a case parts view of the present invention,

(a)는 좌측면도, (b)는 정단면도.(a) is a left side view, (b) is a sectional front view.

제4도는 본 발명의 팬 부품도로서,4 is a fan parts of the present invention,

(a)는 좌측면도, (b)는 정단면도.(a) is a left side view, (b) is a sectional front view.

제5도는 본 발명의 일부분인 필터부의 분리된 상태를 도시한 정면도.5 is a front view showing the separated state of the filter portion which is a part of the present invention.

제6도는 본 발명의 작동방법을 도시한 제어흐름도.6 is a control flow diagram illustrating a method of operation of the present invention.

제7도는 본 발명의 장치에서 블로우어 팬과 모터축 연결구조를 도시한 분리사시도이다.7 is an exploded perspective view showing the blower fan and the motor shaft connection structure in the apparatus of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 필터부 2 : 케이스부1 filter part 2 case part

3,3' : 블로우어 팬 4 : 격막3,3 ': blower fan 4: diaphragm

5 : 모터 6 : 매연 저감장치5: motor 6: smoke reduction device

7 : 배기 온도센서 8 : 배기 압력센서7: exhaust temperature sensor 8: exhaust pressure sensor

9 : E. C. U. 11 : 여과망9: E. C. U. 11: filter network

12 : 필터 13 : 케이스12 filter 13 case

15 : 모터축 16 : 안내날개15: motor shaft 16: guide blade

본 발명은 디젤 엔진 자동차에 적용되는 배기미립자 필터링 시스템에서의 재생용 공기공급 장치에 관한 발명으로, 특히 디젤 엔진에 있어서 매연 저감장치에 사용되는 세라믹 필터의 재생에 필요한 에어블로워(Air Blower) 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air supply device for regeneration in an exhaust particulate filtering system applied to a diesel engine vehicle, and more particularly to an air blower device for regenerating a ceramic filter used for a smoke reduction device in a diesel engine. It is about.

디젤 엔진은 대용량으로 대출력을 가지므로 버스·트럭 및 중장비 등의 엔진으로 선호되는데, 이는 가솔린 엔진보다 고압하에서 비등점 및 옥탄가가 낮은 연료를 사용하므로 기관이 노후되면 매연발생이 필연이며, 따라서 디젤 엔진 차량에는 매연 저감장치의 장착도 필수가 되었다.Since diesel engines have a large output and have a large output, they are preferred for engines such as buses, trucks, and heavy equipment. Since they use fuels having a lower boiling point and lower octane value under higher pressure than gasoline engines, smoke generation is inevitable when the engine is aged. The installation of a smoke reduction device also became essential to the vehicle.

그런데, 매연저감 장치로 일반적으로 사용되는 장치는 일정형상의 격벽단부에 히터를 설치하고 그 상부에 필터를 설치한 것으로, 먼저 격벽을 통해 인입된 배기가스가 히터에 의하여 재연소되고, 연소되지않은 나머지 입자를 포함한 배기가스는 필터에 걸러져서 대기중으로 배출되게 된다.By the way, the apparatus generally used as a smoke reduction device is to install a heater on the end of the partition wall of a certain shape and a filter on the upper part of the exhaust gas, the exhaust gas introduced through the partition wall is first re-burned by the heater, and does not burn Exhaust gas containing the remaining particles is filtered and discharged into the atmosphere.

그러나, 히터에서 재연소시 연소 공간은 밀폐되어 있으며, 배기가스도 디젤 엔진에서 공급되는 것이므로 매연의 재연소를 위해 필요한 공기(산소가 포함된 공기)가 충분히 공급되지 않으면 매연저감 장치의 기능이 충분히 발휘되지 못하는데, 본 발명은 상기한 과제를 해결하기 위하여 안출된 것으로, 이는 매연저감 장치와 연통하는 원통형의 케이스내에 다수의 팬을 장착하는 구조로 이루어진 것으로, 이를 도면에 따라 보다 상세히 설명하면 다음과 같다.However, the combustion space is enclosed during the recombustion in the heater, and the exhaust gas is also supplied from the diesel engine, so if the air (oxygen-containing air) necessary for the recombustion of the exhaust gas is not sufficiently supplied, the function of the smoke reduction device is fully exhibited. The present invention is not intended to solve the above problems, which is made of a structure for mounting a plurality of fans in a cylindrical case communicating with the smoke reduction device, which will be described in more detail according to the drawings as follows. .

제1도는 본 발명의 조립상태도를 나타내는 정면도이고, 제2도는 본 발명의 조립상태를 나타내며 필터부를 생략한 좌측면도이다. 제3도는 본 발명의 일 요부인 케이스 부의 부품도이고, 제4도는 본 발명의 일요부인 블로우어 팬의 부품도이며, 제5도는 본 발명의 일 요부인 필터부의 분리된 상태를 도시한 정면도이며 제7도는 본 발명 장치에서 블로우어 팬과 모터축 연결구조를 도시한 분리사시도로서 상기 도면에서 보면, 대기와 통하도록 입구가 형성된 케이스(13) 내부에 여과망(11)과 필터(12)가 순차적으로 구비된 필터부(1)와, 입구측은 상기 필터부(1)의 출구측에 연결되고 출구측은 매연저감 장치(6)와 연결되는 케이스부(2)와, 상기 케이스부(2) 내에 위치하며 모터(5) 축(15)에 차례로 끼워져 결합된 두개의 블로우어 팬(3,3')과 상기 두 블로우어 팬(3,3') 사이에 위치하며 상기 케이스부(2)내벽에 고정되고 방사 방향으로 스크류 형상의 안내날개(16)가 형성되어져 있는 격막(4)으로 구성된다.FIG. 1 is a front view showing the assembled state diagram of the present invention, and FIG. 2 is a left side view showing the assembled state of the present invention, with the filter part omitted. 3 is a part view of a case part, which is an essential part of the present invention, and FIG. 4 is a part view of a blower fan, which is an essential part of the present invention, and FIG. 5 is a front view showing a separated state of the filter part, which is an essential part of the present invention. 7 is an exploded perspective view showing a blower fan and a motor shaft connection structure in the apparatus of the present invention, in which the filter network 11 and the filter 12 are sequentially formed inside a case 13 having an inlet formed to communicate with the atmosphere. The filter unit 1 and the inlet side is connected to the outlet side of the filter unit 1 and the outlet side is connected to the smoke reduction device 6, the case unit 2, and located in the case unit 2 It is located between the two blower fans (3,3 ') and the two blower fans (3,3') that are inserted into the shaft (15) of the motor (5) in turn and are fixed to the inner wall of the case part (2) And the diaphragm 4 in which the screw-shaped guide blades 16 are formed in the radial direction. The.

또한, 상기 매연저감 장치(6)내에 배기압력센서(7) 및 배기온도 센서(8)를 내부에 구비하고 상기 센서들(7,8)로 부터 입력된 신호에 의해 모터(5)에 제어신호를 출력하는 ECU(Electronic Controlled Unit)(9)를 구비할 수 있다.In addition, an exhaust pressure sensor 7 and an exhaust temperature sensor 8 are provided inside the smoke reduction device 6, and a control signal is supplied to the motor 5 by signals input from the sensors 7 and 8. ECU (Electronic Controlled Unit) 9 for outputting a.

즉, 배기압력센서(9)에서는 측정된 배기가스압력이 초기 설정치 보다 크거나 배기온도센서(7)에서 측정된 배기가스온도가 초기 설정치 보다 큰 경우, E.C.U(9)에 의해 모터(5)가 자동적으로 작동되도록 구성된다.That is, when the exhaust gas pressure measured by the exhaust pressure sensor 9 is larger than the initial setting value or the exhaust gas temperature measured by the exhaust temperature sensor 7 is larger than the initial setting value, the motor 5 is driven by the ECU 9. It is configured to operate automatically.

한편, 상기 필터부(1)는 종래구조와 크게 다르지 않는 것으로서, 여과망(11)은 주로 큰 입자를 걸러주기 위한 것으로 다수개 미세통공이 형성된 금속망으로 구성되며, 필터(12)는 여과망(11)에서 걸러지지않는 미립자를 걸러주기 위한 것으로 주로 종이로 구성된다.On the other hand, the filter unit 1 is not significantly different from the conventional structure, the filter net 11 is mainly for filtering large particles is composed of a metal net formed with a plurality of micro-pores, filter 12 is a filter net 11 It is mainly composed of paper to filter out particles which are not filtered out.

이들 구조는 자동차등에서 사용되는 공기 필터 구조와 거의 동일하므로 당업자에게는 그 구조가 상식의 범주에 속하는 바, 그 구체적인 설명은 생략하였다.Since these structures are almost the same as the air filter structures used in automobiles, those skilled in the art belong to the scope of common sense, and thus the detailed description thereof is omitted.

한편, 상기 케이스부(2)는 일측에 입구가 형성되어 상기 필터부(1)와 연결되어져 있고, 타측에는 출구가 형성되어 매연저감장치(6)에 연결되어져 있으며, 나머지 부분은 모두 밀폐된 형상으로 되어져 있으므로, 필터부(1)를 통해 유입된 공기가 블로우어 팬(3,3')에 의해 고압이 형성된 다음 출구를 통해 상기 매연저감장치(6)로 공급되도록 구성되어져 있다. 상기 블로우어 팬(3,3')은 제2도 및 제4도에 도시된 바와 같이 다수개의 스크류 형상의 안내날개(16)가 구비되어져 있으므로 모터(5)에 의해 상기 블로우어 팬(3,3')이 회전될 때 고압이 공기가 외측방사방향으로 발생되도록 구성되어져 있다.On the other hand, the case portion (2) has an inlet formed on one side and is connected to the filter unit (1), the outlet is formed on the other side is connected to the smoke reduction device (6), all the remaining parts are sealed Since the air flowing through the filter part 1 is formed by the blower fans 3 and 3 ', it is configured to be supplied to the smoke reduction device 6 through the outlet. Since the blower fans 3 and 3 'are provided with a plurality of screw-shaped guide vanes 16 as shown in FIGS. 2 and 4, the blower fan 3, When the 3 ') is rotated, the high pressure is configured so that air is generated in the outward radiation direction.

또한, 상기 블로우어 팬(3,3')사이에 위치하는 격막(4)에는 상기 안내날개(17)의 꺾임 방향과 같은 안내날개(16)가 형성되어져 있으므로, 상기 블로우어 팬(3)에서 발생된 공기흐름이 격막(4)을 통해 블로우어 팬(3')에 원활히 공급될 수 있도록 구성되어져 있다.In addition, the diaphragm 4 positioned between the blower fans 3 and 3 'is formed with guide blades 16 in the bending direction of the guide blade 17, so that the blower fan 3 The generated air flow is configured to be smoothly supplied to the blower fan 3 'through the diaphragm 4.

이와 같이 구성되는 본 발명은 다음과 같이 작동된다.The present invention configured as described above operates as follows.

본 발명은 디젤엔진의 배기미립자 필터링 시스템에서 재생 작업이 진행될 시에 이에 필요한 공기를 매연저감장치에 공급해주기 위한 장치로서, 제1도에 도시된 바와 같이 모터(5)에 의해 블로우어팬(3,3')이 시계반대 방향으로 회전하게 되면 필터부(1)의 입구측을 통해 흡입된 공기가 여과망(11) 및 필터(13)를 지나 케이스부(2) 내로 유입되고, 상기 출구측을 지나 매연저감 장치(6)로 공급되게 되는 것이다.The present invention is a device for supplying the air required for the regeneration operation in the exhaust particulate filtering system of the diesel engine to the smoke reduction device, as shown in Figure 1 by the blower fan (3, When 3 ') rotates counterclockwise, air sucked through the inlet side of the filter unit 1 flows into the case unit 2 through the filter network 11 and the filter 13, and passes through the outlet side. It is to be supplied to the smoke reduction device (6).

제1도에서 보면 모터(5)축에 2개의 블로우어 팬(3,3') 사이에는 격막(4)이 위치하는데, 모터(5) 회전시 필터부(1)를 통해 케이스부(2)에 유입된 공기는 블로우어팬(3)을 지나 격막(2)을 부딪히면서 난류를 형성하면서 고압상태가 되고 다시 블로우어팬(3')을 통과하면서 고압의 상태로 매연저감 장치(6)로 토출되게 된다. 즉, 블로우어 팬(3)에 다수개의 스크류 형상의 안내날개(17)가 형성되어져 있으므로 모터(5)에 의해 회전될 때 고압의 공기가 외측방사방향으로 발생되고, 이와같은 공기의 흐름은 상기 안내날개(17)와 같은 방향으로 형성된 격막(2)의 안내날개(16)를 통과하면서 고압상태로 안정화되어지며, 다시 이 공기 흐름을 블로우어 팬(3')을 통해 케이스(2)의 출구로 유출되어 매연저감장치(6)로 흘러들어가게 된다.In FIG. 1, the diaphragm 4 is positioned between two blower fans 3 and 3 ′ on the shaft of the motor 5, and the case part 2 is provided through the filter part 1 when the motor 5 rotates. The air introduced into the high pressure state while forming turbulence by hitting the diaphragm 2 through the blower fan 3 is discharged to the smoke reduction device 6 at high pressure while passing through the blower fan 3 '. . That is, since the plurality of screw-shaped guide blades 17 are formed in the blower fan 3, high-pressure air is generated in the outward radiation direction when rotated by the motor 5, and such air flow is It passes through the guide blades 16 of the diaphragm 2 formed in the same direction as the guide blades 17 and is stabilized at a high pressure, and this air flow is again passed through the blower fan 3 'to the outlet of the case 2. It flows out into the soot reduction device (6).

이와 같이 본 발명장치에서는 두개의 블로우어 팬(3,3')과 격막(2)에 의해 충분한 고압으로 형성되어진 공기가 매연저감장치(6)에 공급되어지므로, 상기 장치에 포집된 배기미립자가 효과적으로 제거될 수 있는 것이다.Thus, in the present invention, since the air formed at a sufficient high pressure by the two blower fans 3, 3 'and the diaphragm 2 is supplied to the smoke reduction device 6, the exhaust fine particles collected in the device It can be effectively removed.

또한, 매연저감장치(6) 내에 배기압력센서(7) 및 배기온도센서(8)를 내부에 구비하고 상기 센서들(7,8)로 부터 입력된 신호에 의해 모터(5)에 제어신호를 출력하는 E.C.U(9)를 구비한 경우에는 상기 센서(7,8)로 부터의 신호에 의해 디젤엔진의 배기미립자 필터링 시스템의 재생진행에 적합하도록 모터(5)가 자동제어된다. 즉 매연저감장치(6)내부에 배기미립자가 과포집된 경우에는 배기가스압력 및 온도가 모두 상승하게 되는데, 배기압력센서(7)에서 측정값이 E.C.U에 초기 설정된 값보다 크거나 배기온도센서(8)에 측정값이 초기 설정값보다 크게 되면 모터(5)가 작동되므로 매연저감장치(6)에서 재생작업이 순조롭게 진행될 수 있으며, 재생작업이 어느 정도 진행되어 매연저감장치(6)내부에 과포집되어 있던 배기 미립자가 제거되면 배기압력 및 배기온도가 모두 설정치 이하로 떨어지게 되므로 모터(5)는 자동적으로 정지하게 된다. (제6도 참조)In addition, an exhaust pressure sensor 7 and an exhaust temperature sensor 8 are provided inside the smoke reduction device 6, and control signals are supplied to the motor 5 by signals input from the sensors 7 and 8. When the output ECU 9 is provided, the motor 5 is automatically controlled by the signals from the sensors 7 and 8 so as to be suitable for the regeneration progress of the exhaust particulate filtering system of the diesel engine. That is, when the exhaust particulates are excessively collected in the smoke reduction device 6, both the exhaust gas pressure and the temperature are increased. The measured value in the exhaust pressure sensor 7 is larger than the initial value set in the ECU or the exhaust temperature sensor ( 8) If the measured value is larger than the initial set value, the motor 5 is operated, so that the regeneration operation can be performed smoothly in the smoke reduction device 6, and the regeneration operation is progressed to some extent so that the inside of the smoke reduction device 6 When the collected exhaust particles are removed, the exhaust pressure and the exhaust temperature both fall below the set value, so the motor 5 automatically stops. (See Figure 6)

이상에서 설명한 바와 같이 본 발명장치에서는 재생진행 상태에 따라 모터(5)의 회전속도가 저속 또는 고속으로 자동전환되므로 매연저감장치(6)내의 필터의 재생을 최적화하게 된다.As described above, in the present invention, the rotational speed of the motor 5 is automatically switched to low speed or high speed according to the regeneration progress state, thereby optimizing the regeneration of the filter in the smoke reduction device 6.

이와 같이 본 발명 장치는 디젤엔진의 배기 미립자 필터링 시스템에서 매연의 재연소를 위해 필요한 충분한 공기가 E.C.U에 의해 자동제어되는 블로우어 팬(3)에 매연저감장치(6)으로 공급되어지도록하므로, 이를 디젤엔진 차량에 적용시 우수한 매연 저감효과를 주는 유용한 발명이다.As such, the apparatus of the present invention ensures that sufficient air necessary for the recombustion of the soot in the exhaust particle filtering system of the diesel engine is supplied to the blower fan 3, which is automatically controlled by the ECU, as the soot reduction device 6. It is a useful invention that gives excellent soot reduction effect when applied to diesel engine vehicles.

Claims (1)

대기와 통하도록 입구가 형성된 케이스(13) 내부에 여과망(11)과 필터(12)가 구비된 필터부(1)와, 입구측은 상기 필터부(1)의 출구측에 연결되고 출구측은 매연저감장치(6)와 연결되는 케이스부(2)와, 상기 케이스부(2) 내에 위치하며 모터(5) 축(15)에 차례로 끼워져 결합된 두개의 블로우어팬(3,3')과 상기 두 블로우어 팬(3,3') 사이에 위치하며 상기 케이스부(2)내벽에 고정되고 방사방향으로 스크류 형상의 안내날개(16)가 형성되어져 있는 격막(4)으로 구성된 디젤엔진의 배기 미립자 필터링 시스템에서 사용되는 재생용 공기 공급장치에 있어서, 상기 매연저감 장치(6)내에 구비된 배기압력센서(7) 및 배기온도 센서(8)와 상기 배기압력센서(7)에서 측정된 값이 초기 설정치보다 크거나 배기온도센서(8)에서 측정된 값이 초기 설정치 보다 크면 상기 모터(5)가 회전되도록 하는 신호를 출력하고, 상기 배기압력센서(7) 및 배기온도센서(8)에서의 측정값이 초기 설정치보다 작아지면 상기 모터(5)가 정지되도록 하는 신호를 출력하는 E.C.U(Electronic Controlled Unit)(9)로 구성되어진 것을 특징으로 하는 디젤엔진의 배기 미립자 필터링 시스템에서 사용되는 재생용 공기 공급장치.A filter unit 1 having a filter net 11 and a filter 12 in a case 13 having an inlet formed to communicate with the atmosphere, and an inlet side is connected to an outlet side of the filter unit 1 and an outlet side reduces smoke. A case part 2 connected to the device 6, two blower fans 3, 3 ′ which are located in the case part 2 and are fitted into and coupled to the shaft of the motor 5 in turn, and the two blowers. Exhaust particulate filtering system of a diesel engine, which is located between the air fans 3 and 3 'and is fixed to the inner wall of the case part 2 and is formed with a diaphragm 4 in which a radial guide screw blade 16 is formed. In the regenerative air supply apparatus used in the present invention, the exhaust pressure sensor 7 and the exhaust temperature sensor 8 and the exhaust pressure sensor 7 provided in the particulate matter reducing apparatus 6 are smaller than the initial set value. The motor (5) rotates when it is larger or when the value measured by the exhaust temperature sensor (8) is larger than the initial set value. ECU (Electronic Controlled Unit) for outputting a signal to output the signal to stop the motor 5 when the measured value at the exhaust pressure sensor 7 and the exhaust temperature sensor 8 is smaller than the initial set value. A regeneration air supply device for use in an exhaust particulate filtering system of a diesel engine, characterized by comprising (9).
KR1019950058215A 1995-12-27 1995-12-27 Air supply unit of particulate filter system in diesel exhaust KR0158288B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102529228B1 (en) * 2022-04-14 2023-05-04 주식회사 다물에어텍 Turbo Blower

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102529228B1 (en) * 2022-04-14 2023-05-04 주식회사 다물에어텍 Turbo Blower

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