KR19990007179U - Vehicle Exhaust Gas Leak Detector - Google Patents

Vehicle Exhaust Gas Leak Detector Download PDF

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Publication number
KR19990007179U
KR19990007179U KR2019970020697U KR19970020697U KR19990007179U KR 19990007179 U KR19990007179 U KR 19990007179U KR 2019970020697 U KR2019970020697 U KR 2019970020697U KR 19970020697 U KR19970020697 U KR 19970020697U KR 19990007179 U KR19990007179 U KR 19990007179U
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South Korea
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exhaust gas
comparator
lamp
exhaust
turned
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KR2019970020697U
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Korean (ko)
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김진호
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양재신
대우자동차 주식회사
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Priority to KR2019970020697U priority Critical patent/KR19990007179U/en
Publication of KR19990007179U publication Critical patent/KR19990007179U/en

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Abstract

본 고안은 자동차의 배기가스 누설 감지장치에 관한 것으로,종래 배기다기관을 통한 배기가스가 촉매컨버터 사이의 배기파이프에서 누설되는 경우가 있는데,이렇게 누설되면 소음이 크고 또한 정화되지 않은 배기가스가 누설되므로 공해물질로 인한 환경오염의 문제점이 있었다.The present invention relates to an exhaust gas leak detection device of a vehicle, and conventional exhaust gas through the exhaust manifold is leaked from the exhaust pipe between the catalytic converter, this leakage is loud and unpurified exhaust gas leaks There was a problem of environmental pollution due to pollutants.

따라서 본 고안은 상기한 문제점을 고려하여 배기다기관(1)과 촉매컨버터(2) 사이에 설치되어 배기가스 압력을 측정하는 압력센서(10)와,상기 압력센서(10)의 검출전압과 기준전압(VR)을 비교하여 제어신호를 출력하는 비교기(20)와,상기 비교기(20)의 제어신호에 따른 전원전압(B+)의 인가여부에 따라 점/소등되는 램프(30)로 구성한 것으로,누설시 비교기의 트랜지스터가 오프되어 전원전압이 램프로 인가됨에 따라 램프가 점등됨으로써 운전자가 배기가스의 누설을 누설즉시 확인할 수 있어 즉각 조치를 취할 수 으므로 환경오염을 방지할 수 있게 되는 것이다.Therefore, the present invention is installed between the exhaust manifold 1 and the catalytic converter 2 in view of the above problems, and the pressure sensor 10 for measuring the exhaust gas pressure, the detection voltage and the reference voltage of the pressure sensor 10 Comparator 20 for comparing (V R ) and outputting a control signal, and lamp 30 that is turned on / off depending on whether the power supply voltage (B + ) according to the control signal of the comparator 20 is applied. In case of leakage, the transistor of the comparator is turned off and the power voltage is applied to the lamp, so that the lamp is turned on so that the driver can immediately check the leakage of the exhaust gas and take immediate action to prevent environmental pollution.

Description

자동차의 배기가스 누설 감지장치Vehicle Exhaust Gas Leak Detector

본 고안은 자동차의 배기가스 누설 감지장치에 관한 것으로,더욱 상세히는 배기다기관을 통한 배기가스가 촉매컨버터에 의해 정화되기 전의 누설여부를 측정하여 누설되면 램프를 점등시켜 운전자에게 경고를 하여 배기가스의 누설을 차단할 수 있도록 한 자동차의 배기가스 누설 감지장치에 관한 것이다.The present invention relates to a vehicle exhaust gas leak detection device, and more specifically, to measure whether the exhaust gas through the exhaust manifold before it is purified by the catalytic converter, if it leaks, the lamp is turned on to warn the driver of the exhaust gas The present invention relates to an exhaust gas leak detection device of a vehicle which can block leakage.

일반적으로 자동차는 휘발유,경유 및 윤활유가 혼합된 혼합유 등의 각종 연료를 에너지원으로 사용하는데,상기 연료를 엔진의 실린더내로 유입시켜 점화플러그에 의해 점화시켜서 크랭크축을 회전시키는 흡입,압축,팽창,배기행정을 통해 상기 크랭크축의 플라이휠을 회전시키므로써 동력을 바퀴에 전달하게 된다.In general, automobiles use various fuels, such as gasoline, diesel, and mixed oils mixed with lubricating oil, as energy sources.Suction, compression, expansion, which rotates the crankshaft by injecting the fuel into the cylinder of the engine and igniting it with a spark plug, Power is transmitted to the wheels by rotating the flywheel of the crankshaft through the exhaust stroke.

상기한 자동차의 엔진은 다실린더 엔진으로서,각 실린더가 흡입,압축,팽창,배기의 한 사이클을 피스톤의 4행정,즉 크랭크축 2회전으로 1회의 폭발을 갖는 엔진이다.The engine of the vehicle described above is a multicylinder engine, in which each cylinder has one explosion of intake, compression, expansion, and exhaust in four strokes of the piston, that is, two revolutions of the crankshaft.

이렇게 각 실린더가 점화연소되는데,각 실린더의 동력행정인 팽창행정을 위한 점화연소 순서는 4실린더 엔진을 예를들면,제 1실린더가 상사점에 있을때는 제 4실린더도 마찬가지로 상사점에 있고,제 2,3실린더는 하사점에 있어 제 1→제 3 → 제 4→제 2실린더의 순서로 된다.In this way, each cylinder is ignition-burned, and the ignition combustion sequence for the expansion stroke, the power stroke of each cylinder, is a four-cylinder engine, for example, when the first cylinder is at top dead center, the fourth cylinder is also at top dead center. The second and third cylinders are located at the bottom dead center in the order of first to third to fourth to second cylinder.

이와같이 각기 다른 순서로 점화연소된 실린더는 배기행정을 통해 고온고압의 배기가스를,각 실린더의 배기가스를 종합하는 배기다기관,배기가스내의 공해물질을 무해물질로 변화시키는 촉매컨버터,배기가스를 대기중으로 배출하는 배기파이프 및 배기소음을 저하시키는 소음기를 통해서 외부로 배출시킨다.As described above, the cylinders ignited and burned in a different order are provided with exhaust gas at high temperature and high pressure through an exhaust stroke, an exhaust manifold integrating the exhaust gas of each cylinder, a catalytic converter which converts pollutants in the exhaust gas into harmless substances, and the atmosphere. It is discharged to the outside through the exhaust pipe discharged to the middle and the silencer which reduces the exhaust noise.

상기 촉매컨버터는 배기가스에 포함된 일산화탄소(CO),탄화수소(HC),질소산화물(NOX)과 같은 공해물질을 무해한 물(H2O),질소(N2)로 산화/환원시키는 역할을 한다.The catalytic converter serves to oxidize / reduce pollutants such as carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NO X ) contained in the exhaust gas into harmless water (H 2 O) and nitrogen (N 2 ). do.

상기와 같이 배출되는 배기가스는 유해한 공해물질이기 때문에 공해감소가 현재 자동차 기술에 있어서 중요한 문제이고,또한 각 나라마다 배기가스의 규제기준이 다르고 사용연료도 달라 수출을 하려면 해당지역 또는 해당국가의 해당연료에 따른 기준에 맞추어야 하므로 자동차 생산업체들은 배기가스 분석기를 사용하여 배기파이프로부터 나오는 일산화탄소,탄화수소,질소산화물등 공해물질을 측정하고 있는 실정이다.As the above-mentioned exhaust gas is a harmful pollutant, pollution reduction is an important problem in the current automobile technology, and in order to export with different emission standards and different fuels in each country, it is necessary to In order to meet fuel standards, automobile manufacturers are using pollutants to measure pollutants such as carbon monoxide, hydrocarbons, and nitrogen oxides from exhaust pipes.

그런데 배기다기관을 통한 배기가스가 촉매컨버터 사이의 배기파이프에서 누설되면 소음이 크고 또한 정화되지 않은 배기가스가 누설되므로 공해물질로 인한 환경오염의 문제점이 있었다.However, when the exhaust gas through the exhaust manifold leaks from the exhaust pipe between the catalytic converters, there is a problem of environmental pollution due to pollutants because the noise is loud and unpurified exhaust gas leaks.

따라서 본 고안은 상기의 문제점을 해결하기 위한 것으로서,그 기술적 과제는 배기다기관에 배출된 배기가스의 누설여부를 측정하여 누설시 램프를 점등시켜 운전자에게 경고를 함으로써 배기가스 누설을 차단하여 환경오염을 방지할 수 있도록 한 자동차의 배기가스 누설 감지장치를 제공함에 있다.Therefore, the present invention is to solve the above problems, the technical problem is to measure the leakage of the exhaust gas discharged to the exhaust manifold and to turn on the lamp to warn the driver by blocking the exhaust gas leakage by blocking the environmental pollution It is to provide an exhaust gas leak detection device of a vehicle to prevent.

이와같은 본 고안의 기술적 과제는 배기다기관과 촉매컨버터 사이에 설치되어 배기가스 압력을 측정하는 압력센서와,상기 압력센서의 검출전압과 기준전압을 비교하여 제어신호를 출력하는 비교기와,상기 비교기의 제어신호에 의해 점/소등되는 램프로 구성함으로써 달성된다.The technical problem of the present invention is installed between the exhaust manifold and the catalytic converter pressure sensor for measuring the exhaust gas pressure, a comparator for comparing the detected voltage and the reference voltage of the pressure sensor and outputs a control signal, the comparator This is achieved by constructing a lamp that is turned on / off by a control signal.

도 1은 본 고안에 의한 배기가스 누설 감지장치의 회로도1 is a circuit diagram of an exhaust gas leak detection apparatus according to the present invention

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

1 : 배기다기관 2 : 촉매컨버터1: exhaust manifold 2: catalytic converter

4 : 배기파이프 10 : 압력센서4: exhaust pipe 10: pressure sensor

20 : 비교기 30 : 램프20: comparator 30: lamp

이하 본 고안의 기술적 과제를 효과적으로 달성할수 있는 바람직한 실시예로서 그 기술구성 및 작용을 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the technical configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 고안에 의한 배기가스 누설 감지장치의 기술구성을 나타낸 회로도로서,이에 나타낸 바와같이 본 고안은 배기다기관(1)과 촉매컨버터(2) 사이에 설치되어 배기가스 압력을 측정하는 압력센서(10)와,상기 압력센서(10)의 검출전압과 기준전압(VR)을 비교하여 제어신호를 출력하는 비교기(20)와,상기 비교기(20)의 제어신호에 따른 전원전압(B+)의 인가여부에 따라 점/소등되는 램프(30)로 구성한 것이다.1 is a circuit diagram showing the technical configuration of the exhaust gas leak detection apparatus according to the present invention, as shown in the present invention is a pressure sensor installed between the exhaust manifold 1 and the catalytic converter (2) to measure the exhaust gas pressure 10, a comparator 20 comparing the detected voltage of the pressure sensor 10 with a reference voltage V R and outputting a control signal, and a power supply voltage B + according to the control signal of the comparator 20. ) Is configured as a lamp 30 that is turned on / off depending on whether or not the application.

즉,압력센서(10)는 배기가스의 압력을 측정하여 비교기(20)로 출력하고,비교기(20)는 그 기준전압(VR)과 압력센서(10)의 검출전압을 비교하여 트랜지스터의 온/오프 신호를 출력하고,램프(30)는 상기 비교기(20)의 온/오프 신호에 따라 소/점등하는 것이다.That is, the pressure sensor 10 measures the pressure of the exhaust gas and outputs it to the comparator 20. The comparator 20 compares the reference voltage V R with the detected voltage of the pressure sensor 10 to turn on the transistor. The on / off signal is output, and the lamp 30 turns on / off according to the on / off signal of the comparator 20.

이와같은 본 고안의 기술구성에 따른 작용을 설명하면 다음과 같다.Referring to the operation according to the technical configuration of the present invention as follows.

배기다기관(1)과 촉매컨버터(2) 사이의 배기파이프(4)에서 배기가스가 누설되지 않으면 압력센서(10)의 검출전압은 비교기(20)의 기준전압(VR)보다 작아져 비교기(20)의 출력 트랜지스터는 온되어 전원전압(B+)은 접지되므로써 램프(30)는 소등상태가 된다.If the exhaust gas does not leak from the exhaust pipe 4 between the exhaust manifold 1 and the catalytic converter 2, the detected voltage of the pressure sensor 10 is smaller than the reference voltage V R of the comparator 20, so that the comparator ( The output transistor of 20 is turned on and the power supply voltage B + is grounded, so that the lamp 30 is turned off.

하지만 배기다기관(1)과 촉매컨버터(2) 사이의 배기파이프(4)에서 배기가스가 누설되면 압력센서(10)의 검출전압은 비교기(20)의 기준전압(VR)보다 커져 비교기(20)의 출력 트랜지스터는 오프되어 전원전압(B+)은 램프(30)로 인가되어 램프(30)는 점등되는 것이다.However, when the exhaust gas leaks from the exhaust pipe 4 between the exhaust manifold 1 and the catalytic converter 2, the detection voltage of the pressure sensor 10 is greater than the reference voltage V R of the comparator 20, so that the comparator 20 ) Is turned off so that the power supply voltage B + is applied to the lamp 30 so that the lamp 30 is turned on.

이렇게 압력센서(10)가 배기다기관(1)과 촉매컨버터(2) 사이의 배기파이프(4)에서 배기가스의 누설여부에 따라 검출전압이 달라져 비교기(20)에서는 그에 따른 비교결과를 내부 출력 트랜지스터의 온/오프로 처리함으로써 전원전압(B+)이 접지/인가되어 램프(30)가 소/점등이 이루어지는 것이다.In this way, the pressure sensor 10 changes the detection voltage according to whether the exhaust gas leaks in the exhaust pipe 4 between the exhaust manifold 1 and the catalytic converter 2, and the comparator 20 compares the result with the internal output transistor. By turning on / off, the power supply voltage B + is grounded / applied so that the lamp 30 is turned off / on.

이상에서 상술한 바와같이 본 고안은 배기가스의 누설여부를 압력센서로 감지하여 비교기의 비교결과 처리에 의해 램프를 점/소등시키도록 한 것으로서,누설시 램프가 점등됨에 따라 운전자가 배기가스의 누설을 누설즉시 확인할 수 있어 즉각 조치를 취할 수 으므로 환경오염을 방지할 수 있게 되는 것이다.As described above, the present invention is to detect whether or not the leakage of the exhaust gas by the pressure sensor to turn on / off the lamp by the comparison result processing of the comparator, the leakage of the exhaust gas as the driver is turned on when the lamp is leaked It is possible to immediately check the leakage and take immediate action to prevent environmental pollution.

Claims (1)

배기다기관(1)과 촉매컨버터(2) 사이에 설치되어 배기가스 압력을 측정하는 압력센서(10)와,상기 압력센서(10)의 검출전압과 기준전압(VR)을 비교하여 제어신호를 출력하는 비교기(20)와,상기 비교기(20)의 제어신호에 따른 전원전압(B+)의 인가여부에 따라 점/소등되는 램프(30)로 구성한 것을 특징으로 하는 자동차의 배기가스 누설 감지장치.A pressure sensor 10 installed between the exhaust manifold 1 and the catalytic converter 2 for measuring the exhaust gas pressure, and comparing the detected voltage and the reference voltage V R of the pressure sensor 10 to obtain a control signal. The exhaust gas leak detection device of a vehicle, comprising a comparator 20 for outputting and a lamp 30 that is turned on / off depending on whether the power supply voltage B + is applied according to the control signal of the comparator 20. .
KR2019970020697U 1997-07-31 1997-07-31 Vehicle Exhaust Gas Leak Detector KR19990007179U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100380070B1 (en) * 2000-10-13 2003-04-11 현대자동차주식회사 A method for detecting leakage of exhaust gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100380070B1 (en) * 2000-10-13 2003-04-11 현대자동차주식회사 A method for detecting leakage of exhaust gas

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