KR940003533B1 - Auxiliary ejecting apparatus - Google Patents

Auxiliary ejecting apparatus Download PDF

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Publication number
KR940003533B1
KR940003533B1 KR1019910024145A KR910024145A KR940003533B1 KR 940003533 B1 KR940003533 B1 KR 940003533B1 KR 1019910024145 A KR1019910024145 A KR 1019910024145A KR 910024145 A KR910024145 A KR 910024145A KR 940003533 B1 KR940003533 B1 KR 940003533B1
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KR
South Korea
Prior art keywords
fuel
exhaust gas
auxiliary
injector
exhaust
Prior art date
Application number
KR1019910024145A
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Korean (ko)
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KR930013459A (en
Inventor
문선
Original Assignee
대우자동차주식회사
김태구,알. 제이. 스트래미
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Priority to KR1019910024145A priority Critical patent/KR940003533B1/en
Publication of KR930013459A publication Critical patent/KR930013459A/en
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Publication of KR940003533B1 publication Critical patent/KR940003533B1/en

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Classifications

    • 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
    • F02M26/41—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories characterised by the arrangement of the recirculation passage in relation to the engine, e.g. to cylinder heads, liners, spark plugs or manifolds; characterised by the arrangement of the recirculation passage in relation to specially adapted combustion chambers
    • 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
    • F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
    • F02M26/15—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system in relation to engine exhaust purifying apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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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)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

The auxiliary exhausted-gas injection apparatus is constructed that an exhaust multi-pipe, an exhaust gas filter, a heatproofing device, and a surge tank are provided and connected to an auxiliary exhausted-gas sprayer, thereby increasing the fuel spraying effect.

Description

연료 분무향상을 위한 배기가스 보조 분사장치Exhaust Auxiliary Injector for Improved Fuel Spray

제1도는 본 발명의 계통도.1 is a schematic diagram of the present invention.

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

1 : 배기다기관 2 : 배기가스필터1: exhaust manifold 2: exhaust gas filter

2' : 방열기 3 : 서어지탱크2 ': radiator 3: surge tank

4 : 연료분사기 5 : 배기가스 보조 분사기4 fuel injector 5 exhaust gas auxiliary injector

6 : 카탈리틱 컨버터 7 : 연료탱크6: Catalytic Converter 7: Fuel Tank

8 : 연료펌프 9 : 연료필터8 fuel pump 9 fuel filter

10 : 연료레귤레이터 11 : 스로틀 바디10: fuel regulator 11: throttle body

12 : 충진실 13 : 흡기다기관12: filling chamber 13: intake manifold

14 : 연소실14: combustion chamber

본 발명은 엔진 연료분사기의 연료 분무화 향상을 위한 보조 분사장치에 고온 고압의 배기가스를 연료와 함께 분사하여 연료 분무의 기화를 촉진시킴과 동시에 유해가스 배출을 감소시키기 위한 장치이다.The present invention is an apparatus for promoting the vaporization of fuel spray by reducing the high-pressure and high-pressure exhaust gas with the fuel to the auxiliary injector for improving the fuel atomization of the engine fuel injector and at the same time reduce the emission of harmful gases.

종래 분사기를 통하여 연료를 분사하는 개솔린엔진에 있어서 연료의 무화도를 높히기 위해 압축공기를 연료분무 주위로 분사하거나 별도의 예열장치로 연료를 예열하는 방안이 고려되고 있으나 공기보조분사의 경우 공기의 압력을 충분히 높이기 위한 공기 압축기의 가격이 높아 원가 상승요인이 되며 압력증가에 따라 공기 유량도 증가하여 기존의 연료 분사를 위하여 ECU를 수정해야 하는 문제점이 따른다. 또한 연료의 기화를 돕기 위하여 연료 예열장치를 부착하거나 연료분무 주위에 열선을 설치하는 장치도 있으나 이는 전기 소모량이 많고 화재의 위험도 무시할 수 없는 결점이 있다.In the conventional gasoline engine that injects fuel through an injector, in order to increase the atomization of the fuel, a method of injecting compressed air around the fuel spray or preheating the fuel with a separate preheater is considered. The cost of the air compressor to sufficiently increase the cost increases, and the air flow rate increases with increasing pressure, which requires modification of the ECU for conventional fuel injection. In addition, there is a device that attaches a fuel preheating device or installs a heating wire around the fuel spray to assist the vaporization of the fuel, but it has a drawback that the electricity consumption is high and the risk of fire cannot be ignored.

본 발명은 이와 같은 종래의 결점을 제거코져 엔진 배기가스를 연료와 함께 분사하는 장치를 창출한 것으로서 그 요지를 첨부도면에 의하여 상세히 설명하면 다음과 같다. 배기다기관(1)에서 배기가스 필터(2), 방열기(2')를 경유 서어지탱크(3)에 배관하고 이를 연료분사기(4)의 주위로 분사되게 배기가스 보조 분사기(5)에 배관 연결시킨 구조이다. 도면중 미설명부호(6)은 카탈리틱(7)은, 연료탱크(8)은, 연료펌프(9)는, 연료필터(10)은, 연료 레귤레이터(11)은, 스토틀 바디(12)는, 충진실(13)은, 흡기다기관(14)는 연소실이다.The present invention is to create a device for injecting the engine exhaust gas with fuel to remove such a conventional defect as described in detail with reference to the accompanying drawings as follows. In the exhaust manifold (1), the exhaust gas filter (2) and the radiator (2 ') are piped to the surge tank (3) via a pipe connection to the exhaust gas auxiliary injector (5) to be injected around the fuel injector (4). It is a structure. In the drawing, reference numeral 6 denotes a catalytic 7, a fuel tank 8, a fuel pump 9, a fuel filter 10, a fuel regulator 11, and a stottle body 12. In the filling chamber 13, the intake manifold 14 is a combustion chamber.

이와 같이된 본 발명은 연료 분무 주위로 분사되는 배기가스의 높은 온도는 연료의 기화를 촉진시키며 배기가스의 높은 압력으로 인한 빠른 분사 속도는 연료분무를 구성하는 연료입자의 크기를 더욱 작게 감소시켜 연료와 공기의 혼합도를 향상시키고 결과적으로 연소효율을 향상시키게 된다. 또한 배기가스 일부를 흡기포트에 환원하여 재연소시킴으로써 기존의 배기가스 재순환장치(EGR 시스템)의 역할도 겸하는 장치이다. 만일 보조 분사기(5)로 분사되는 배기가스의 양이 기존의 ECR 시스템에서 환원시키는 양보다 작을 경우는 서어지탱크(3)에 제삼의 배기가스유로를 분기시켜 기존의 EGR 유로와 연결시킴으로써 배기가스 순환량의 일부는 보조 분사기(5)로, 나머지는 기존의 EGR 방식대로 충진실(12)로 환원시키는 장치도 가능하다.In the present invention, the high temperature of the exhaust gas injected around the fuel spray promotes vaporization of the fuel, and the rapid injection speed due to the high pressure of the exhaust gas further reduces the size of the fuel particles constituting the fuel spray, thereby reducing the fuel. This improves the mixing of and air and consequently the combustion efficiency. In addition, by reducing part of the exhaust gas to the intake port and re-burning, it also serves as a conventional exhaust gas recirculation device (EGR system). If the amount of exhaust gas injected into the auxiliary injector 5 is smaller than the amount reduced by the existing ECR system, the third exhaust gas passage is branched to the surge tank 3 and connected to the existing EGR flow path. A part of the circulation amount can be reduced to the auxiliary injector 5 and the rest to the filling chamber 12 according to the conventional EGR method.

작동중 방열기(2')는 고온의 배기가스를 원하는 온도로 낮출 필요가 있을 경우 부착되며 서어지탱크(3)는 불규칙한 배기가스의 압력 변환 및 유량 변화를 감소시키는 역할을 한다.During operation, the radiator 2 'is attached when it is necessary to lower the hot exhaust gas to the desired temperature, and the surge tank 3 serves to reduce the pressure change and the flow rate change of the irregular exhaust gas.

그러므로 연료 분무 향상을 위한 보조 분사 장치로써 별도의 공기 압축장치가 필요하지 않고 배기가스의 높은 압력과 온도를 동시에 이용하므로 연료 분무향상효과가 크며 유해 배기가스 배출감소를 위한 종래의 기술인 배기가스 재순환 장치의 효과를 겸할 수 있는 것이다.Therefore, as an auxiliary injection device for improving fuel atomization, a separate air compressor is not required, and the high pressure and temperature of the exhaust gas are simultaneously used, so the fuel atomization effect is large, and the conventional exhaust gas recirculation device for reducing harmful emissions is not required. It can combine the effects of.

Claims (1)

배기다기관(1)에서 배기가스필터(2), 방열기(2')를 경유, 서어지탱크(3)에 배관하고 이를 연료 분사기(4)의 주위로 분사되게 배기가스 보조분사기(5)에 배관 연결시킨 것과 배기가스 재순환 장치의 역할을 겸하도록 한 것을 특징으로 하는 연료 분무 향상을 위한 배기가스 보조 분사장치.In the exhaust manifold 1, the exhaust gas filter 2 and the radiator 2 ′ are piped to the surge tank 3 via the exhaust gas filter 2 and the exhaust gas filter 2 is injected to the surroundings of the fuel injector 4. An exhaust gas auxiliary injector for improving fuel spray, characterized in that it is connected and serves as an exhaust gas recirculation device.
KR1019910024145A 1991-12-24 1991-12-24 Auxiliary ejecting apparatus KR940003533B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910024145A KR940003533B1 (en) 1991-12-24 1991-12-24 Auxiliary ejecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910024145A KR940003533B1 (en) 1991-12-24 1991-12-24 Auxiliary ejecting apparatus

Publications (2)

Publication Number Publication Date
KR930013459A KR930013459A (en) 1993-07-21
KR940003533B1 true KR940003533B1 (en) 1994-04-23

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020081526A (en) * 2001-04-18 2002-10-28 한국기계연구원 Exhaust gas assisted fuel injection system of internal combustion engine
KR100535541B1 (en) * 2002-10-22 2005-12-08 현대자동차주식회사 Distribution character improvementing device of EGR system

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KR930013459A (en) 1993-07-21

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