KR20000045562A - Muffler for diesel engine having performance for abating noise - Google Patents

Muffler for diesel engine having performance for abating noise Download PDF

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Publication number
KR20000045562A
KR20000045562A KR1019980062122A KR19980062122A KR20000045562A KR 20000045562 A KR20000045562 A KR 20000045562A KR 1019980062122 A KR1019980062122 A KR 1019980062122A KR 19980062122 A KR19980062122 A KR 19980062122A KR 20000045562 A KR20000045562 A KR 20000045562A
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South Korea
Prior art keywords
plasma reactor
temperature plasma
noise
engine
low temperature
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KR1019980062122A
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Korean (ko)
Inventor
부진영
조기헌
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권상문
삼성중공업 주식회사
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Priority to KR1019980062122A priority Critical patent/KR20000045562A/en
Publication of KR20000045562A publication Critical patent/KR20000045562A/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
    • F01N3/0892—Electric or magnetic treatment, e.g. dissociation of noxious components
    • 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
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/28—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a plasma reactor
    • 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
    • F01N2570/12—Hydrocarbons
    • 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

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

Abstract

PURPOSE: A muffler for a diesel engine with a performance for abating noise is provided to incinerate smoke in a low-temperature plasma reactor as well as to reduce exhaust noise. CONSTITUTION: A muffler for a diesel engine(10) has a low-temperature plasma reactor(20), a transformer(30) and a controller(40). A pulse generator is also mounted to eliminate NOx(nitrogen oxide) by generating pulse. The electricity of the generator is stored in a storage battery(11), and the plasma reactor receives the high voltage through the transformer from the storage battery. The controller controls to supply necessary electricity for discharging a corona to the reactor. The low-temperature plasma reactor is manufactured at the same size as the muffler and connected to an exhaust piping system of the engine, instead of the muffler. The plasma reactor collects smoke and incinerates the smoke by discharging the corona. Also, the noise is reduced by passing through the reactor.

Description

소음성능을 겸비한 매연집진제거장치Soot collection device with noise performance

본 발명은 디젤엔진에서 배출되는 배가스를 정화처리하는 장치에 관한 것으로, 특히 배출되는 슈트(Soot)를 포함한 매연을 전기집진하여 저온플라즈마반응기내에서 소각처리하는 동시에 배출소음도 감소시킬 수 있는 기능을 갖는 소음성능을 겸비한 매연집진제거장치에 관한 것이다.The present invention relates to an apparatus for purifying exhaust gas discharged from a diesel engine, and in particular, by electrostatic precipitating soot including discharged soot, incineration in a low temperature plasma reactor and at the same time having a function of reducing emission noise. The present invention relates to a particulate matter removal device having a noise performance.

일반적으로, 차량에 장착된 디젤엔진등의 내연기관은 그 가동에 따라 유해한 배기가스가 대기중으로 배출되게 된다. 이 배가스중에는 슈트(Soot)등을 포함하고 있는 매연등이 많이 존재한다. 이러한 매연을 그대로 외부로 배출할 경우 환경오염을 물론 인체에 해를 끼칠 우려가 높다. 따라서, 이같은 매연을 포집하여 제거처리하지 않으면 않된다. 이를 위해서 기존에는 1995년 이태리의 CSM(Centro Sviluppo Materiali Reserch Centre)에서 Colletta,A. ＆ Costa,G. ＆ Pinti,M.등에 의해 "Self-Cleaning Electrostatic Muffler for Diesel Engine"연구가 진행되었다. 이 기술에서는 디젤엔진에서 배출된 배가스에 함유된 슈트를 집진하여 실린더-와이어형의 코로나방전장치를 사용하여 태우는 방식을 택하였다. 이 장치는 엔진에 소음기를 대체하여 장착되며, 그 반응기를 길게 제작하여 소음을 감소시켰다.In general, in an internal combustion engine such as a diesel engine mounted on a vehicle, harmful exhaust gas is discharged into the atmosphere according to its operation. There are many soot lamps including soot in this flue gas. If it is discharged to the outside as it is, there is a high risk of harm to the human body as well as environmental pollution. Therefore, soot must be collected and removed. To this end, in 1995, at the Centro Sviluppo Materiali Reserch Center (CSM) in Italy, Colletta, A. & Costa, G. "Self-Cleaning Electrostatic Muffler for Diesel Engine" research was conducted by Pinti, M. et al. In this technique, the chute contained in the exhaust gas discharged from the diesel engine was collected and burned using a cylinder-wire corona discharge device. The unit was fitted with an engine silencer, which made the reactor long enough to reduce noise.

하지만, 이 장치는 디젤엔진배가스중의 슈트제거율이 60%를 넘지 못했으며, 소음저감도 40%미만이어서 매연처리와 소음성능 어느 것에서도 좋은 성능을 발휘하지 못해 제대로 목적하는 기능을 수행하지 못하였다.However, this device has not exceeded 60% chute removal rate in diesel engine flue gas and the noise reduction was less than 40%, so it was not able to perform its intended function due to its poor performance in both soot treatment and noise performance. .

따라서, 본 발명의 목적은 상기에서와 같은 종래의 결점을 해소하기 위해서 안출한 것으로서, 배출되는 슈트를 포함한 매연을 전기집진하여 저온플라즈마반응기내에서 소각처리하는 동시에 배출소음을 감소시킬 수 있는 기능도 갖는 소음성능을 겸비한 매연집진제거장치를 제공함에 있다.Accordingly, an object of the present invention is to devise to solve the above-mentioned drawbacks, and to also function to reduce the exhaust noise while incineration in a low temperature plasma reactor by electrostatic collection of soot including discharge chute. An object of the present invention is to provide a dust collection device having a noise performance.

도 1은 본 발명에 따른 소음성능을 겸비한 매연집진제거장치가 차량에 장치된 상태를 보여주는 도면,1 is a view showing a state in which a particulate matter removing device having a noise performance according to the present invention is installed in a vehicle,

도 2는 본 발명에서 핵심부분인 저온플라즈마반응기의 내부구조를 나타낸 구조도,Figure 2 is a structural diagram showing the internal structure of a low temperature plasma reactor which is a core part in the present invention,

도 3은 본 장치의 매연제거율을 보여주는 도표,3 is a diagram showing the soot removal rate of the present apparatus,

도 4a 및 도 4b는 본 장치의 소음저감효과를 설명하기 위한 도표들.4A and 4B are diagrams for explaining the noise reduction effect of the present apparatus.

*도면의 주요부분에 대한 부호설명* Code descriptions for the main parts of the drawings

10 : 엔진 11 : 축전지10 engine 11: storage battery

20 : 저온플라즈마반응기 30 : 트랜스포머(Transformer)20: low temperature plasma reactor 30: transformer

40 : 제어유닛(Unit)40: control unit

이와 같은 목적을 달성하기 위한 본 발명에 따른 소음성능을 겸비한 매연집진제거장치는 디젤엔진에서 배기되는 배가스중의 매연을 제거처리하는 장치에 있어서, 상기 엔진에서 배출되는 배가스중의 매연을 포집소각하는 저온플라즈마반응기; 상기 저온플라즈마반응기에 전기를 원하는 전압으로 공급하는 트랜스포머; 및 상기 트랜스포머에 의해 승압된 전기를 상기 저온플라즈마반응기가 필요한 양만큼 제어공급하는 제어유닛을 포함한다.In order to achieve the above object, the particulate matter removing apparatus having a noise performance according to the present invention is a device for removing particulate matter from exhaust gas exhausted from a diesel engine, and collecting and burning the particulate matter from exhaust gas emitted from the engine. Low temperature plasma reactor; A transformer for supplying electricity to the low temperature plasma reactor at a desired voltage; And a control unit for controlling and supplying the electricity boosted by the transformer by an amount required by the low temperature plasma reactor.

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

도 1은 본 발명에 따른 소음성능을 겸비한 매연집진제거장치가 차량에 장치된 상태를 보여주는 도면이다.1 is a view showing a state in which a smoke collecting device having a noise performance according to the present invention is installed in a vehicle.

본 장치는 엔진(10)에서 배출되는 배가스가 유입되어 배가스중의 매연을 포집소각하는 저온플라즈마반응기(20)와, 저온플라즈마반응기(20)에 전기를 원하는 전압으로 공급하는 트랜스포머(Transformer)(30) 및, 이들을 제어하는 제어유닛(40)을 구비하고 있다. 또한, 질소산화물(NOx)의 제거를 위해 펄스를 발생시키는 펄스제너레이터(Pulse Generator)(미도시)도 구비하고 있다. 물론, 엔진(10)에 연결된 제너레이터(미도시)에서 발전된 전기는 축전지(11)에 축전되고, 이 축전지(11)로부터 1200W의 전기를 트랜스포머(30)를 이용하여 고전압으로 저온플라즈마반응기(20)에 공급하게 된다. 이때, 제어유닛(40)은 코로나방전에 필요한 전기량이 저온플라즈마반응기(20)에 공급되도록 제어한다. 저온플라즈마반응기(20)는 소음기와 같은 크기로 제작되며, 도면에서 표시된 바와 같이 소음기를 대체하여 엔진(10)배출부에 연결된다. 이 저온프라즈마반응기(20)는 매연을 집진하는 동시에 코로나방전을 하여 유입된 매연을 소각제거하게 된다. 그와 더불어, 이 반응기를 통과하며 소음도 함께 급격히 저감되게 된다. 이 플라즈마반응기의 구체적인 구조에 대해서는 도 2를 참조하여 설명한다.The apparatus is a low-temperature plasma reactor (20) for injecting the exhaust gas discharged from the engine 10 to collect and burn the smoke in the exhaust gas, and a transformer (30) for supplying electricity to the low-temperature plasma reactor (20) at a desired voltage. ) And a control unit 40 for controlling them. In addition, a pulse generator (not shown) for generating a pulse for removing nitrogen oxide (NOx) is also provided. Of course, the electricity generated in the generator (not shown) connected to the engine 10 is stored in the storage battery 11, the low-temperature plasma reactor 20 at a high voltage by using a transformer 30 of 1200W of electricity from the battery 11 Will be supplied to At this time, the control unit 40 controls the amount of electricity required for corona discharge to be supplied to the low temperature plasma reactor (20). The low temperature plasma reactor 20 is manufactured in the same size as the silencer, and is connected to the engine 10 outlet by replacing the silencer as shown in the drawing. The low temperature plasma reactor 20 collects soot and simultaneously removes soot introduced by corona discharge. In addition, the noise is drastically reduced along with the reactor. The specific structure of this plasma reactor will be described with reference to FIG.

도 2는 본 발명에서 핵심부분인 저온플라즈마반응기의 내부구조를 나타낸 것으로, 보는 바와 같이 저온플라즈마반응기는 네가티브(Negative)P/S의 전압을 크게 하여 슈트를 포집하는 슈트집진부(A), 집진된 슈트를 네가티브P/S의 전류를 크게 하여 소각하는 소각처리부(B), 네가티브P/S의 전체파워(Power)를 크게 하여 탄화수소를 제거하는 탄화수소제거부(C) 그리고, 포지티브(Positive)P/S 및 포지티브P/G(Pulse Generator)를 크게 하여 NOx를 제거하는 질소산화물제거부(D)로 이루어져 있다. 이와 같은 구조는 외부보호통(미도시)에 의해 수납되며, 소음도 이들을 통과하며 혁혁이 저감되게 된다. 이에 대한 데이터가 도 3 및 도 4에 나타나 있다.Figure 2 shows the internal structure of the low-temperature plasma reactor, which is the core part of the present invention, as shown in the low-temperature plasma reactor is a chute dust collector (A), collecting the chute by increasing the voltage of the negative (Negative) P / S, collected Incineration treatment unit (B) which incinerates chute by increasing the current of negative P / S, hydrocarbon removal unit (C) which removes hydrocarbon by increasing the total power of negative P / S, and positive P / S It consists of nitrogen oxide removal unit (D) to remove NOx by increasing S and positive P / G (Pulse Generator). Such a structure is accommodated by an outer protective container (not shown), noise also passes through them and the leather is reduced. Data on this is shown in FIGS. 3 and 4.

도 3은 본 장치의 시험결과를 나타낸 것으로, 사용전압에 따른 매연제거율을 보여주고 있다. 이 도표에서 X선은 50% 엔진부하시의 슈트제거율평균을 나타내는 것이고, Y선은 100% 부하시의 슈트제거율평균을 나타내는 것이다. 여기서는 전술한 슈트집진부와 소각처리부에서 집진 및 소각제거된 슈트의 양을 표시하는 것으로, 여러 조건의 엔진부하하에서 실험한 결과를 BOSCH-METER로 측정한 결과와 OPACIMETER로 측정한 결과와 비교하여 슈트제거율을 결정하였다.Figure 3 shows the test results of the device, showing the smoke removal rate according to the voltage used. In this chart, X-rays represent the average chute removal rate at 50% engine load, and Y-rays represent the chute removal rate average at 100% load. Here, the amount of chutes collected and incinerated by the above-mentioned chute dust collector and incineration treatment section is displayed, and the result of the chute removal rate is compared with the results measured by the BOSCH-METER and the results measured by the OPACIMETER under the engine load under various conditions. Was determined.

본 시험결과에서 50% 엔진부하시의 슈트제거율평균은 약 14kV의 전압하에서 90%까지 달했으며, 100% 엔진부하시의 슈트제거율평균은 약 14kV의 전압하에서 80%까지 나타났다. 이때, 사용된 전체전력은 약 80W로 엔진에 연결된 축전지의 용량인 1200W(중장비의 경우)의 약 7%정도로 미소하여 차량운전에는 거의 영향을 미치지 않음을 알 수 있었다.In this test, the average chute removal rate at 50% engine load reached 90% under 14kV voltage, and the chute removal rate at 100% engine load reached 80% at 14kV voltage. At this time, the total power used was about 80W, which is about 7% of the capacity of the 1200W (heavy equipment), which is the capacity of the battery connected to the engine.

도 4a 및 도 4b는 본 장치의 소음저감효과를 설명하기 위한 도표들로, 엔진공회전상태와 2200rpm상태에서 본 장치의 소음시험에 대한 결과를 각각 보여주고 있다.4A and 4B are diagrams for explaining the noise reduction effect of the device, and show the results of the noise test of the device in the engine idle state and 2200 rpm, respectively.

여기서는 본 플라즈마반응기가 소음기의 기능을 어느 정도 충실히 수행할 수 있을 지를 알아보기 위해 마이크로폰을 이용하여 소음압수준을 측정하고, 배기소음의 주파수분석을 위하여 DAT레코더에 저장한 후, LMS 소프트웨어를 사용하여 분석하였다. 특히, 여러경우, 즉 기존의 소음기와 본 플라즈마반응기를 모두 제거한 상태, 소음기만 장착한 상태, 플라즈마반응기만을 장착한 상태 그리고, 소음기와 플라즈마반응기를 모두 장착한 상태하에서 소음측정을 행하였다.Here, we measure the sound pressure level using a microphone to find out how faithfully the plasma reactor can perform the function of the silencer, store it in the DAT recorder for frequency analysis of exhaust noise, and then use LMS software. Analyzed. In particular, in many cases, noise measurements were carried out with the existing silencer and the plasma reactor all removed, the silencer only, the plasma reactor only, and the silencer and the plasma reactor both equipped.

본 소음시험 결과에서 알 수 있듯이, 2200rpm상태에서는 모두 제거한 상태와 비교할 때 기존의 소음기만을 사용했을 때의 소음저감효과는 -3.3dBA에 불과하나, 본 저온플라즈마반응기를 장착했을 때에는 소음저감효과가 -13.9dBA를 나타내 월등하였다. 또한, 공회전상태(1010rpm)에서도 소음기가 -5.2dBA의 소음저감효과를 나타낸 데 비하여, 본 저온플라즈마반응기는 -12.7dBA의 높은 소음저감효과를 나타냈다.As can be seen from the noise test results, the noise reduction effect of using the existing silencer alone is only -3.3 dBA compared to the state of elimination at 2200 rpm, but the noise reduction effect of the low temperature plasma reactor is- 13.9 dBA was superior. In addition, the low temperature plasma reactor showed a high noise reduction effect of -12.7 dBA, while the silencer exhibited a noise reduction effect of -5.2 dBA even at idle (1010 rpm).

이상의 결과에 비추어서 알 수 있듯이 본 장치가 기존의 소음기에 비하여 소음저감기능면에서도 7~10dBA이상이 더 우수한 것을 알 수 있었다. 또한, 배압성능에 대한 시험에서도 본 장치는 엔진출력성능에 악영향을 미치지 않는 범위내에서 작동함을 확인할 수 있었다.As can be seen from the above results, the device was found to be more than 7 ~ 10dBA in noise reduction function compared to the existing silencer. In addition, in the test for back pressure performance, it was confirmed that the device operates within a range that does not adversely affect the engine output performance.

이상 서술한 바와 같이, 본 발명에 따른 소음성능을 겸비한 매연집진제거장치는 배출되는 슈트를 포함한 매연을 전기집진하여 저온플라즈마반응기내에서 소각처리하는 동시에 배출소음을 저감시킬 수 있는 잇점을 갖는다. 이로 인하여, 본 장치는 환경공해를 예방하는 데 크게 기여할 수 있다. 더욱이, 기존의 소음기와 동일한 크기로 하여 매연방지와 소음기능을 한 장치로 구현함에 의해 각각의 장비를 개별적으로 장착하는 것에 비해 그 점유공간을 줄일 수 있을 뿐만 아니라, 생산비도 절감할 수 있는 효과를 갖는다.As described above, the particulate matter removing apparatus having the noise performance according to the present invention has the advantage of reducing the noise while simultaneously incineration in a low temperature plasma reactor by electrocollecting the soot including the discharge chute. For this reason, the apparatus can greatly contribute to preventing environmental pollution. In addition, the same size as the existing silencer, by implementing a smoke prevention and noise function in one device, not only can reduce the space occupied, but also reduce the production cost compared to mounting each equipment individually Have

Claims (3)

디젤엔진에서 배기되는 배가스중의 매연을 제거처리하는 장치에 있어서,In the apparatus for removing the soot in the exhaust gas exhausted from the diesel engine, 상기 엔진에서 배출되는 배가스중의 매연을 포집소각하는 저온플라즈마반응기;A low temperature plasma reactor configured to collect and incinerate soot in the exhaust gas discharged from the engine; 상기 저온플라즈마반응기에 전기를 원하는 전압으로 공급하는 트랜스포머; 및A transformer for supplying electricity to the low temperature plasma reactor at a desired voltage; And 상기 트랜스포머에 의해 승압된 전기를 상기 저온플라즈마반응기가 필요한 양만큼 제어공급하는 제어유닛을 포함하는 소음성능을 겸비한 매연집진제거장치.And a noise collecting device having a noise performance including a control unit for controlling and supplying electricity boosted by the transformer by an amount required by the low temperature plasma reactor. 제 1항에 있어서, 상기 저온플라즈마반응기는 네가티브P/S의 전압을 크게 하여 슈트를 포집하는 슈트집진부, 집진된 슈트를 네가티브P/S의 전류를 크게 하여 소각하는 소각처리부, 네가티브P/S의 전체파워를 크게 하여 탄화수소를 제거하는 탄화수소제거부 및, 포지티브P/S 및 포지티브P/G(Pulse Generator)를 크게 하여 NOx를 제거하는 질소산화물제거부로 이루어진 것을 특징으로 하는 소음성능을 겸비한 매연집진제거장치.According to claim 1, wherein the low-temperature plasma reactor is a chute collecting unit for collecting the chute by increasing the voltage of the negative P / S, incineration processing unit, the incineration processing unit for incineration the collected chute by increasing the current of the negative P / S, Soot collection with noise performance, characterized by consisting of a hydrocarbon removal unit for removing hydrocarbons by increasing the total power, and a nitrogen oxide removal unit for removing NOx by increasing the positive P / S and positive P / G (Pulse Generator) Removal device. 제 2항에 있어서, 상기 구조를 갖는 저온플라즈마반응기내를 유동하며 엔진소음이 급속히 저감되는 것을 특징으로 하는 소음성능을 겸비한 매연집진제거장치.3. The particulate matter removal system having noise performance according to claim 2, wherein the engine noise is rapidly reduced while flowing in the low temperature plasma reactor having the structure.
KR1019980062122A 1998-12-30 1998-12-30 Muffler for diesel engine having performance for abating noise KR20000045562A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010069398A (en) * 2001-03-19 2001-07-25 천봉우 Clean air system in car.
KR20020071673A (en) * 2001-03-07 2002-09-13 천봉우 None dust system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020071673A (en) * 2001-03-07 2002-09-13 천봉우 None dust system
KR20010069398A (en) * 2001-03-19 2001-07-25 천봉우 Clean air system in car.

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