KR200151543Y1 - Exhaust egr apparatus using hydrogen - Google Patents

Exhaust egr apparatus using hydrogen Download PDF

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Publication number
KR200151543Y1
KR200151543Y1 KR2019970016823U KR19970016823U KR200151543Y1 KR 200151543 Y1 KR200151543 Y1 KR 200151543Y1 KR 2019970016823 U KR2019970016823 U KR 2019970016823U KR 19970016823 U KR19970016823 U KR 19970016823U KR 200151543 Y1 KR200151543 Y1 KR 200151543Y1
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South Korea
Prior art keywords
hydrogen
exhaust
exhaust gas
supply line
solenoid valve
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KR2019970016823U
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Korean (ko)
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KR19990003229U (en
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홍재웅
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양재신
대우자동차주식회사
김덕중
사단법인고등기술연구원연구조합
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Priority to KR2019970016823U priority Critical patent/KR200151543Y1/en
Publication of KR19990003229U publication Critical patent/KR19990003229U/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/21—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/025—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting O2, e.g. lambda sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M2026/001—Arrangements; Control features; Details
    • F02M2026/003—EGR valve controlled by air measuring device

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

본 고안은 수소를 이용한 배기가스 재순환 장치에 관한 것으로, 배기순환 시스템에 수소가스 공급라인을 부가 설치하고, 상기 수소가스 공급라인의 입력단에 수소 탱크를 결합시키며, 상기 수소탱크로부터 출력되는 수소가스량을 제어하기 위한 솔레노이드 밸브를 수소탱크와 수소가스 공급라인 중간에 설치하고, 상기 솔레노이드 밸브는 콘트롤러로 제어하되 콘트롤러는 배기포트에 설치되는 산소센서로써 배기가스의 공해물질 농도를 체크하여 솔레노이드의 작동시간을 제어하는 프로그램을 내장시킨 구성을 갖는 것이 특징이다.The present invention relates to an exhaust gas recirculation apparatus using hydrogen, and additionally installs a hydrogen gas supply line in an exhaust circulation system, couples a hydrogen tank to an input terminal of the hydrogen gas supply line, and outputs an amount of hydrogen gas output from the hydrogen tank. A solenoid valve for controlling is installed between the hydrogen tank and the hydrogen gas supply line, and the solenoid valve is controlled by the controller, but the controller is an oxygen sensor installed in the exhaust port to check the pollutant concentration of the exhaust gas to check the operation time of the solenoid. It has a feature incorporating a program for controlling.

Description

수소를 이용한 배기가스 재순환 장치Exhaust gas recirculation system using hydrogen

본 고안은 수소를 이용한 배기가스 재순환 장치에 관한 것으로, 특히 흡기매니폴드에 수소가스 공급라인을 설치하고, 상기 수소가스 공급라인의 입력단에는 수소탱크를 결합시키며, 상기 수소탱크로부터 출력되는 수소가스량을 제어하기 위한 솔레노이드 밸브 및 솔레노이드 작동시간을 제어하는 콘트롤러를 포함한 구성을 갖도록하여 재순한라인의 미연소가스를 완전연소로 유도함으로써 엔진의 수명을 연장시키고 승차감을 좋게 하는 것을 특징으로 하는 수소를 이용한 배기가스 재순환 장치에 관한 것이다.The present invention relates to an exhaust gas recirculation apparatus using hydrogen, and in particular, a hydrogen gas supply line is installed at an intake manifold, a hydrogen tank is coupled to an input terminal of the hydrogen gas supply line, and the amount of hydrogen gas output from the hydrogen tank is adjusted. It has a configuration including a solenoid valve to control and a controller to control the solenoid operating time to exhaust the unburned gas of the recirculated line to complete combustion, thereby extending the life of the engine and improving the riding comfort. It relates to a gas recirculation device.

일반적으로 배기장치(exhaust system)는 각 실린더의 배기가스를 종합하는 배기 매니폴드, 배기 가스중 유해가스를 차단하는 촉매 컨버터와, 배기 가스를 대기중으로 배출하는 배기 파이프 및, 배기소음을 차단하기 위한 소음기 등으로 구성되어 있다.In general, an exhaust system includes an exhaust manifold that aggregates exhaust gas of each cylinder, a catalytic converter that blocks harmful gas in the exhaust gas, an exhaust pipe that exhausts exhaust gas into the atmosphere, and It consists of a silencer.

그런데, 동절기 등 냉각된 상태에서 엔진의 초기시동시, 흡기 매니폴드의 상부 끝단 가장자리에 설치되어 있는 인젝터에서 분사되는 연료는 냉각수와 흡기포트 내부의 온도가 낮아 가장 농후한 연료를 분사하는데, 이 연료의 일부가 완전히 연소되지 못하고 불완전 연소 상태인 그대로 배기가스가 되어 배출되는 문제가 있다.However, during the initial startup of the engine in a cooled state such as winter season, the fuel injected from the injector installed at the upper end edge of the intake manifold injects the richest fuel due to the low temperature of the coolant and the intake port. There is a problem in that part of the gas is not completely burned and is exhausted as it is in an incomplete combustion state.

이를 해결하기 위해 도 1에 나타낸 바와같이 배기가스 재순환 시스템을 탑재하고 있는바, 엔진의 배기포트(22)에서 출력되는 배기가스의 일부를 재순환 파이프라인(24)을 통해 흡기 매니폴드(16)로 재순환 토록 한 장치가 일반적으로 사용되고 있다.In order to solve this problem, as shown in FIG. 1, an exhaust gas recirculation system is mounted. A part of the exhaust gas output from the engine exhaust port 22 is transferred to the intake manifold 16 through the recirculation pipeline 24. Recirculating equipment is commonly used.

그러나 불완전 연소상태의 배기가스를 배출하지 않기 위하여 사용하는 배기가스 재순환 장치를 과다하게 사용하게 되면 실린더 내에서 연소 불안정이 발생하고 따라서 엔진의 출력이 감소하게 되는 원인으로 작용할 뿐만 아니라 혼합가스가 충분한 농도를 갖지 못해 실화가 발생할 확률이 높아지며, 따라서 엔진(1)의 수명이 단축되고, 동시에 차체는 심하게 떨리게 되는 현상이 발생한다.However, excessive use of the exhaust gas recirculation system, which is used to avoid exhaust gas in an incomplete combustion state, may cause combustion instability in the cylinder and thus reduce the engine output. There is a high probability that a misfire occurs due to the failure of the engine, thus shortening the life of the engine 1, and at the same time, a phenomenon in which the vehicle body is severely shaken occurs.

따라서 본 고안은 상기와 같은 문제점을 해결코자 하는 것으로, 배기가스가 많이 분출되면 수소가스를 흡기관에 분사하여 재순환되는 배기가스를 충분히 점화시킴으로써 배기가스의 방출을 최대한 막도록 하는데 본 고안의 목적이 있다.Therefore, the present invention is intended to solve the above problems, and when a large amount of exhaust gas is ejected, hydrogen gas is injected into the intake pipe to sufficiently ignite the recycled exhaust gas, thereby preventing the emission of exhaust gas as much as possible. have.

상기 목적을 달성하기 위한 수단으로,As a means for achieving the above object,

배기순환 시스템에 수소가스 공급라인을 부가 설치하고, 상기 수소가스 공급라인의 입력단에 수소 탱크를 결합시키며, 상기 수소탱크로부터 출력되는 수소가스량을 제어하기 위한 솔레노이드 밸브를 수소탱크와 수소가스 공급라인 중간에 설치하고, 상기 솔레노이드 밸브는 콘트롤러로 제어하되 콘트롤러는 배기포트에 설치되는 산소센서로써 배기가스의 공해물질 농도를 체크하여 솔레노이드의 작동시간을 제어하는 프로그램을 내장시킨 구성을 갖는 것이 특징이다.A hydrogen gas supply line is additionally installed in the exhaust circulation system, a hydrogen tank is coupled to an input terminal of the hydrogen gas supply line, and a solenoid valve for controlling the amount of hydrogen gas output from the hydrogen tank is provided between the hydrogen tank and the hydrogen gas supply line. And the solenoid valve is controlled by a controller, but the controller is an oxygen sensor installed in the exhaust port and has a configuration in which a program for controlling the operation time of the solenoid is checked by checking the concentration of pollutants in the exhaust gas.

도 1은 종래 배기가스 순환장치 구성도.1 is a configuration diagram of a conventional exhaust gas circulation system.

도 2는 본 고안에 따른 배기가스 순환장치 구성도.2 is a configuration of the exhaust gas circulation system according to the present invention.

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

30 : 수소가스 공급라인 32 : 수소탱크30: hydrogen gas supply line 32: hydrogen tank

34 : 솔레노이드 밸브 36 : 콘트롤러34 solenoid valve 36 controller

38 : 산소센서38: oxygen sensor

이하 도면을 참조로 상세히 설명하면 다음과 같다.Hereinafter, described in detail with reference to the drawings.

도 2는 본 고안의 구성블럭도로써, 배기순환 시스템에 수소가스 공급라인(30)을 부가 설치하고, 상기 수소가스 공급라인(30)의 입력단에 수소 탱크(32)를 결합시키며, 상기 수소탱크(32)로부터 출력되는 수소가스량을 제어하기 위한 솔레노이드 밸브(34)를 수소탱크(32)와 수소가스 공급라인(30) 중간에 설치하고, 상기 솔레노이드 밸브(34)는 콘트롤러(36)로 제어하되 콘트롤러(36)는 배기포트(22)에 설치되는 산소센서(38, 설명의 편의상 따로 도시함)로써 배기가스의 공해물질 농도를 체크하여 솔레노이드 밸브(34)의 작동시간을 제어하는 프로그램을 내장시킨 구성을 갖는다.Figure 2 is a block diagram of the subject innovation, the hydrogen gas supply line 30 is installed in the exhaust circulation system, the hydrogen tank 32 is coupled to the input terminal of the hydrogen gas supply line 30, the hydrogen tank A solenoid valve 34 for controlling the amount of hydrogen gas output from the 32 is installed between the hydrogen tank 32 and the hydrogen gas supply line 30, and the solenoid valve 34 is controlled by the controller 36. The controller 36 is an oxygen sensor 38 installed in the exhaust port 22 (shown separately for convenience of explanation) to check the pollutant concentration of the exhaust gas so as to control the operation time of the solenoid valve 34. Has a configuration.

상기와 같이 구성하는 본 고안은 먼저 흡기매니폴드(16)를 통해 혼합가스가 입력되면 실린더 헤드의 점화플러그에 의해서 혼합가스를 점화시켜 엔진을 동작시키고, 이후 상기 혼합가스는 배기 매니폴드(26)를 통해 외부로 방출되며, 또한 재순환 라인(24)을 거쳐 방출되는 일부분이 다시 흡기 매니폴드(16)로 귀환후 실린더 헤드에 공급된다.When the mixed gas is input through the intake manifold 16, the present invention is configured to operate the engine by igniting the mixed gas by means of a spark plug of the cylinder head, and then the mixed gas is exhaust manifold 26. A portion discharged to the outside through the recirculation line 24 is returned to the intake manifold 16 and then supplied to the cylinder head.

이때 배기가스의 농도가 진하면 연소가 불완전하게 일어나기 때문에 본 고안에서는 수소가스를 제공하여 실린더내에서 활발한 연소가 일어날 수 있도록 유도하여 엔진의 동작이 안정적으로 일어나게 한다.At this time, since the combustion occurs incompletely when the concentration of exhaust gas is high, the present invention provides hydrogen gas to induce active combustion in the cylinder, thereby stably operating the engine.

참고로 수소의 공기 혼합비는 34 : 1 이므로 가솔린의 경우보다 상당히 희박해도 그의 완전연소가 가능하다.For reference, the air mixing ratio of hydrogen is 34: 1, so that even if it is considerably thinner than gasoline, it can be completely burned.

본 고안에서는 배기포트(22)에 설치되는 산소감지센서(38)를 이용하여 배기가스의 농도를 검출하는바, 콘트롤러(36)에는 배기가스의 농도에 따라 솔레노이드밸브(34)의 개방시간을 제어하여 수소탱크(32)로부터 수소 공급라인(30)을 거쳐 공급되는 수소의 량을 제어한다.In the present invention, the concentration of the exhaust gas is detected using the oxygen sensor 38 installed at the exhaust port 22. The controller 36 controls the opening time of the solenoid valve 34 according to the concentration of the exhaust gas. To control the amount of hydrogen supplied from the hydrogen tank 32 via the hydrogen supply line 30.

따라서 종래에는 배기가스의 농도가 짙은 상태에서 흡기매니폴드(16)로 제공되어 엔진의 연소상태가 불완전하여 차체의 진동이 발생하고 엔진에 무리가 가는 문제점이 있었으나, 본 고안을 이용하면 콘트롤러(36)에서 배기가스의 농도에 따라 흡기 매니폴드(16)에 수소가스량을 적당히 혼합하여 연소실로 공급시킴으로써 완전한 연소가 이루어 지도록 할 수 있기 때문에 엔진의 수명을 연장시킬 뿐만 아니라 승차감을 좋게 하는데도 도움을 준다.Therefore, in the related art, since the exhaust gas concentration is provided to the intake manifold 16 in a state where the concentration of exhaust gas is high, the combustion state of the engine is incomplete, so that the vibration of the vehicle body occurs and the engine is unreasonable. In accordance with the concentration of the exhaust gas in accordance with the exhaust gas intake manifold (16) is properly mixed by supplying the amount of hydrogen gas to the combustion chamber, so that complete combustion can be achieved not only extends the life of the engine but also helps to improve the ride comfort.

특히 수소가스는 가연성 연소이기 때문에 자체가 화염원으로 되므로 실화의 위험을 줄일 수 있고 확실한 연소가 일어날 수 있도록 도움을 준다.In particular, since hydrogen gas is a combustible combustion, it is a source of flame itself, which reduces the risk of misfire and helps to ensure reliable combustion.

상술한 바와같이 본 고안은 흡기매니폴드에 수소가스 공급라인과, 이를 제어하기 위한 솔레노이드 밸브 및 솔레노이드 작동시간을 제어하는 콘트롤러를 포함한 구성을 갖도록하여 재순한라인의 미연소가스를 완전연소로 유도함으로써 엔진의 수명을 연장시키고 승차감을 좋게 하는 효과가 있다.As described above, the present invention has a configuration including a hydrogen gas supply line in the intake manifold, a solenoid valve for controlling the same, and a controller for controlling the operation time of the solenoid, thereby inducing unburned gas in the regenerated line to complete combustion. It has the effect of extending the life of the engine and improving the ride comfort.

Claims (1)

배기매니폴드에서 출력되는 배기가스를 흡기매니폴드로 재입력하는 배기순환 시스템에 있어서,In the exhaust circulation system for re-injecting the exhaust gas output from the exhaust manifold into the intake manifold, 상기 흡기 매니폴드 일단에 수소가스 공급라인(30)을 부가 설치하고, 배기가스가 고농도시 수소가스를 공급하기 위해 상기 수소가스 공급라인(30)의 입력단에 수소 탱크(32)를 결합시키며, 상기 수소탱크(32)로부터 출력되는 수소가스량을 제어하기 위한 솔레노이드 밸브(34)를 수소탱크(32)와 수소가스 공급라인(30) 중간에 설치하고, 콘트롤러(36)로 상기 솔레노이드 밸브(34)를 제어하되, 상기 콘트롤러(36)는 배기포트(22)에 설치되는 산소센서(38)로써 배기가스의 공해물질 농도를 체크하여 배기가스의 농도에 따라 솔레노이드 밸브(34)의 작동시간을 제어하는 프로그램을 내장시킨 구성을 갖는 것을 특징으로 하는 수소를 이용한 배기가스 재순환 장치.A hydrogen gas supply line 30 is additionally installed at one end of the intake manifold, and exhaust gas is coupled to the hydrogen tank 32 at an input of the hydrogen gas supply line 30 to supply hydrogen gas with high concentration. A solenoid valve 34 for controlling the amount of hydrogen gas output from the hydrogen tank 32 is installed between the hydrogen tank 32 and the hydrogen gas supply line 30, and the solenoid valve 34 is connected to the controller 36. The controller 36 is a program for controlling the operation time of the solenoid valve 34 according to the concentration of the exhaust gas by checking the concentration of the pollutant in the exhaust gas with the oxygen sensor 38 installed in the exhaust port 22. Exhaust gas recirculation apparatus using hydrogen, characterized in that it has a configuration built-in.
KR2019970016823U 1997-06-30 1997-06-30 Exhaust egr apparatus using hydrogen KR200151543Y1 (en)

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Cited By (1)

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KR20110117323A (en) * 2010-04-21 2011-10-27 희성촉매 주식회사 Diesel engine exhaust gas purification device having ammonia decomposition module

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Publication number Priority date Publication date Assignee Title
KR100799306B1 (en) * 2007-01-31 2008-01-29 한국기계연구원 Nox reduction system of engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110117323A (en) * 2010-04-21 2011-10-27 희성촉매 주식회사 Diesel engine exhaust gas purification device having ammonia decomposition module
WO2011132918A3 (en) * 2010-04-21 2012-03-08 희성촉매 주식회사 Device for discharging exhaust gas from diesel engine, having ammonolysis module
CN102844535A (en) * 2010-04-21 2012-12-26 喜星触媒株式会社 Device for discharging exhaust gas from diesel engine, having ammonolysis module
US9321008B2 (en) 2010-04-21 2016-04-26 Heesung Catalysts Corporation Device for discharging exhaust gas from diesel engine, having ammonolysis module
KR101631149B1 (en) 2010-04-21 2016-06-20 희성촉매 주식회사 Diesel engine exhaust gas purification device having ammonia decomposition module

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