KR19980042202U - Car fuel injector - Google Patents
Car fuel injector Download PDFInfo
- Publication number
- KR19980042202U KR19980042202U KR2019960055298U KR19960055298U KR19980042202U KR 19980042202 U KR19980042202 U KR 19980042202U KR 2019960055298 U KR2019960055298 U KR 2019960055298U KR 19960055298 U KR19960055298 U KR 19960055298U KR 19980042202 U KR19980042202 U KR 19980042202U
- Authority
- KR
- South Korea
- Prior art keywords
- fuel
- injector
- intake
- intake manifold
- air
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 48
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 238000009736 wetting Methods 0.000 abstract description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10019—Means upstream of the fuel injection system, carburettor or plenum chamber
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10281—Means to remove, re-atomise or redistribute condensed fuel; Means to avoid fuel particles from separating from the mixture
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
흡기 매니폴드나 흡기 밸브의 페이스면에 연료가 점착되는 월 웨팅을 방지하여, 엔진의 성능을 향상시키고자 한다. 이를 위하여, 본 고안의 연료 분사장치는 엔진부압에의해 흡기가 유입되는 흡기 매니폴드(2)와, 그 흡기 매니폴드로 연료를 분사하는 인젝터(1)와, 그 인젝터의 앞쪽에 설치되어 엔진의 흡기 행정시 공기를 분사하여 월 웨팅된 연료를 연소실(3)로 불어 넣는 에어 노즐(6)로 구성된 것을 특징으로 한다.It is intended to improve the performance of the engine by preventing wall wetting that fuel adheres to the face surface of the intake manifold or the intake valve. To this end, the fuel injector of the present invention has an intake manifold (2) into which intake air is introduced by engine negative pressure, an injector (1) for injecting fuel into the intake manifold, and installed in front of the injector. It is characterized in that it consists of an air nozzle (6) for injecting air during the intake stroke to blow the wall wetted fuel into the combustion chamber (3).
Description
본 고안은 자동차의 연료 분사장치에 관한 것으로서, 보다 구체적으로는 흡기 매니폴드로 분사되는 연료의 월 웨팅(wall-wetting)을 방지하여, 엔진의 성능을 향상시킬 수 있도록 한 연료 분사장치에 관한 것이다.The present invention relates to a fuel injector of an automobile, and more particularly, to a fuel injector capable of preventing wall wetting of fuel injected into an intake manifold to improve engine performance. .
주지된 바와 같이, 전자식 가솔린 분사(EGI; Electronic Gasoling Injection) 시스템은 일정한 압력으로 유지된 연료를 흡기 매니폴드 내부에 분사하는 방식이며, 분사량의 제어는 전자식 분사 밸브(injector)를 엔진의 각 사이클마다 흡입공기량에 따라, 어느 시간동안 개방시키는 간헐 분사방식으로 이루어진다.As is well known, the Electronic Gasoling Injection (EGI) system is a method of injecting fuel maintained at a constant pressure into the intake manifold, and the control of the injection amount is performed by using an electronic injection valve for each cycle of the engine. According to the intake air amount, it is made of the intermittent injection method which opens for some time.
이러한 전자식 가솔린 분사 시스템은 크게 연료 계통과, 공기 계통, 및 전자 제어장치로 구성된다.This electronic gasoline injection system is largely composed of a fuel system, an air system, and an electronic controller.
상기 연료 계통은 연료가 저장되어 있는 연료탱크, 상기 연료를 압송하는 연료펌프, 연료내의 불순물을 제거하는 연료 필터, 연료의 압력을 일정하게 유지시키는 압력 조정기, 연료를 흡기 포트로 분사시키는 인젝터, 잔여 연료를 연료 탱크로 보내는 리턴 파이프로 구성된다.The fuel system includes a fuel tank in which fuel is stored, a fuel pump for transporting the fuel, a fuel filter for removing impurities in the fuel, a pressure regulator for maintaining a constant pressure of the fuel, an injector for injecting fuel into the intake port, and a residual fuel tank. It consists of a return pipe that sends fuel to the fuel tank.
종래 공지된 자동차의 연료장치가 도 1에 잘 나타나 있다.The fuel system of a conventionally known automobile is shown well in FIG.
도시된 바와 같이, 종래의 연료장치는 연료펌프로부터 공급된 연료가 실린더에 상당하는 수의 각각의 인젝터(1)를 통해 흡기 매니폴드(2)로 분사되므로서, 흡기와 혼합된 후 연소(3)실로 공급된다.As shown, the conventional fuel device is fueled from the fuel pump is injected into the intake manifold 2 through a corresponding number of cylinders through each injector 1, so that the fuel is mixed with the intake and then burned (3). It is supplied to the thread.
이 경우, 흡기 매니폴드(2)는 크랭크 샤프트에 연동되는 캠에 의해 상,하 작동되는 흡기 밸브(4)에 의해 개폐되며, 그 흡기 밸브(4)의 개방시 전자제어유닛(ECU)에 의해 제어되는 인젝터(1)로부터 연료가 분사된다.In this case, the intake manifold 2 is opened and closed by an intake valve 4 which is operated up and down by a cam interlocked with the crankshaft, and by the electronic control unit (ECU) when the intake valve 4 is opened. Fuel is injected from the controlled injector 1.
상술한 종래의 연료 장치에 있어서, 인젝터(1)로부터 흡기 매니폴드(2)로 분사되는 연료의 흡기 밸브(4)의 페이스면(5)이나 흡기 매니폴드(2) 내면에 점착되는 월 웨팅이발생되는 문제점이 있다.In the above-described conventional fuel device, wall wetting adhered to the face surface 5 of the intake valve 4 of the fuel injected from the injector 1 to the intake manifold 2 or the inner surface of the intake manifold 2 is formed. There is a problem that occurs.
이러한 월 웨팅은 흡기 효율을 저하시키고, 연료의 미립화를 방해하여, 혼합기의 형성을 저하시키므로서, 혼합기의 불완전 연소, 연료 소비, 유해가스의 배출, 및 엔진의 출력을 저하시키는 문제점을 초래한다.Such wall wetting lowers the intake efficiency, hinders atomization of the fuel, and lowers the formation of the mixer, resulting in incomplete combustion of the mixer, fuel consumption, emission of harmful gases, and lowering the engine output.
이러한 종래 기술의 문제점을 해소하기 위한 목적에서 안출된 것으로, 본 고안은 흡기 매니폴드와 흡기 밸브의 페이스면에 연료가 점착되는 것을 방지하여, 엔진의 성능을 향상시키고자 한다.In order to solve the problems of the prior art, the present invention is to prevent the fuel adhered to the face surface of the intake manifold and the intake valve, to improve the performance of the engine.
도 1은 일반적인 연료 분사장치를 도시한 단면도.1 is a cross-sectional view showing a general fuel injector.
도 2는 본 고안에 의한 자동차의 연료 분사장치를 도시한 일부 단면도.2 is a partial cross-sectional view showing a fuel injector of an automobile according to the present invention.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1-인젝터2-흡기, 매니폴드1-injector 2-intake, manifold
3-연소실4-흡기 밸브3-combustion chamber 4-intake valve
6-에어 노즐6-air nozzle
상술한 목적을 달성하기 위하여, 본 고안은 다음과 같은 수단으로 실현되는 자동차의 연료 분사장치를 제안한다.In order to achieve the above object, the present invention proposes a fuel injector of an automobile realized by the following means.
즉, 본 고안의 연료 분사장치는 연소실과 연통되어 엔진 부압에 의해 흡기가 유입되는 흡기 매니폴드와, 그 흡기 매니폴드로 연료를 분사하는 인젝터와, 그 인젝터의 앞쪽에 설치되어 엔진의 흡기 행정시 공기를 분사하여 월 웨팅된 연료를 연소실로 불어 넣는 에어 노즐로 구성된 것을 특징으로 한다.In other words, the fuel injector of the present invention communicates with the combustion chamber and is provided with an intake manifold into which intake air is introduced by engine negative pressure, an injector for injecting fuel into the intake manifold, and installed in front of the injector, Characterized in that it consists of an air nozzle for injecting air to blow the wall wetted fuel into the combustion chamber.
이러한 구성에 따라, 상기 흡기 매니폴드 및 흡기 밸브의 페이스면에는 연료의 점착이 발생되지 않으며, 연료가 점착되더라도 에어 노즐로부터 분사되는 공기에 의해 연소실로 유입된다.According to this configuration, adhesion of fuel does not occur on the face surfaces of the intake manifold and the intake valve, and the fuel is introduced into the combustion chamber by the air injected from the air nozzle even if the fuel is adhered.
이하, 본 고안을 실현하는 바람직한 일 실시예를 첨부 도면에 의거하여 보다 상세하게 설명한다.Hereinafter, a preferred embodiment for realizing the present invention will be described in more detail with reference to the accompanying drawings.
[실시예]EXAMPLE
도 2는 본 실시예에 관련된 자동차의 연료 분사장치를 보인 일부 단면도이다.2 is a partial sectional view showing a fuel injector of a vehicle according to the present embodiment.
본 실시예를 설명함에 있어, 종래 기술에서 인용된 도면과 동일한 본 실시예의 구성에 대해서는 동일한 부호를 사용하고 있으며, 설명의 명료성을 위해 다시 설명하지 않는다.In describing the present embodiment, the same reference numerals are used for the configuration of the present embodiment, which is the same as the drawings cited in the prior art, and will not be described again for clarity.
도면에서의 설명 부호 (1)은 인젝터, (2)느 흡기 매니폴드, (3)은 연소실, (4)는 흡기 밸브를 지칭한다.In the drawings, reference numeral 1 denotes an injector, 2 an intake manifold, 3 a combustion chamber, and 4 an intake valve.
이러한 구성에 있어서, 본 실시예는 흡기 매니폴드(2)와 흡기 밸브(4)의 페이스면에 점착되는 연료 즉, 월 웨팅된 연료를 제거하기 위해, 에어 노즐(6)을 구비하여 이루어진다.In this configuration, the present embodiment is provided with an air nozzle 6 to remove fuel adhered to the face surfaces of the intake manifold 2 and the intake valve 4, that is, the wall wetted fuel.
보다 구체적으로, 엔진 부압에 의해 외부 공기가 유입되는 흡기 매니폴드(2)의 임의의 위치에는 엔진의 흡기 행정시 흡기 밸브(4) 및 흡기 매니폴드(2)의 내부로 강제적으로 공기를 분사하는 에어 노즐(6)이 설치된다.More specifically, at any position of the intake manifold 2 into which outside air is introduced by the engine negative pressure, air is forcedly injected into the intake valve 4 and the intake manifold 2 during the intake stroke of the engine. The air nozzle 6 is installed.
이 에어 노즐(6)은 인젝터(1)의 앞쪽(도면의 우측)에 설치되어, 인젝터(1)로부터 분사되는 연료의 후방에 공기를 분사하며, 흡기 밸브(4) 및 흡기 매니폴드(2)의 벽면에 점착되는 연료를 연소실로 불어 넣는다.The air nozzle 6 is installed in front of the injector 1 (right side of the drawing), injects air to the rear of the fuel injected from the injector 1, the intake valve 4 and the intake manifold 2 The fuel adhering to the wall of the gas is blown into the combustion chamber.
상술한 본 실시예의 구성에 따라, 본 고안의 흡기 매니폴드(2) 및 흡기 밸브(4)에는 월 웨팅이 발생되지 않는다.According to the configuration of this embodiment described above, wall wetting is not generated in the intake manifold 2 and the intake valve 4 of the present invention.
한편, 본 실시예에 의한 에어 노즐(6)은 ECU에 의해 그 분사시기가 제어된다. 이 경우, 공전속도제어(ISC) 밸브의 역할을 대신할 수도 있다.On the other hand, the injection timing of the air nozzle 6 according to the present embodiment is controlled by the ECU. In this case, it may take the role of an idle speed control (ISC) valve.
이상에서 설명된 실시예를 통하여, 본 고안에 의한 자동차의 연료 분사장치는 종래 기술에 문제점을 실질적으로 해소하게 됨을 알 수 있다.Through the embodiments described above, it can be seen that the fuel injector of the vehicle according to the present invention substantially solves the problems in the prior art.
즉, 본 고안에 의하면 월 웨팅을 방지하므로서, 외부 공기의 흡입 효율을 높이고, 혼합기의 형성을 향상시키는 효과를 얻게 된다.That is, according to the present invention, while preventing the wall wetting, the effect of increasing the suction efficiency of the outside air and improving the formation of the mixer is obtained.
이러한 효과는 회박연소 엔진을 실현하게 되며, 연료의 소비를 줄이고 엔진의 성능을 향상시키는 효과를 얻게 된다.This effect results in a burn-in engine, reducing fuel consumption and improving engine performance.
또한, 혼합기의 연소성의 향상으로 배출 가스의 유해 성분을 저감시키므로써, 배출가스 규제에 대한 대응 효과를 얻게 된다.In addition, by improving the combustibility of the mixer to reduce the harmful components of the exhaust gas, it is possible to obtain a corresponding effect to the emission gas regulation.
또한, 엔진의 출력을 향상시키는 효과를 얻게 된다.In addition, the effect of improving the output of the engine is obtained.
한편, 본 고안은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 실용신안등록 청구의 범위에서 청구하는 본 고안의 요지를 벗어남이 없이 당해 고안이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능할 것이다.On the other hand, the present invention is not limited to the above-described specific preferred embodiment, any person having ordinary knowledge in the field to which the subject innovation belongs without departing from the gist of the subject innovation claimed in the utility model registration claims Modifications may be made.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960055298U KR19980042202U (en) | 1996-12-24 | 1996-12-24 | Car fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960055298U KR19980042202U (en) | 1996-12-24 | 1996-12-24 | Car fuel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980042202U true KR19980042202U (en) | 1998-09-25 |
Family
ID=53994998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960055298U KR19980042202U (en) | 1996-12-24 | 1996-12-24 | Car fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19980042202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9853155B2 (en) | 2013-07-17 | 2017-12-26 | Taiwan Semiconductor Manufacturing Company, Ltd. | MOS devices having epitaxy regions with reduced facets |
-
1996
- 1996-12-24 KR KR2019960055298U patent/KR19980042202U/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9853155B2 (en) | 2013-07-17 | 2017-12-26 | Taiwan Semiconductor Manufacturing Company, Ltd. | MOS devices having epitaxy regions with reduced facets |
| US10062781B2 (en) | 2013-07-17 | 2018-08-28 | Taiwan Semiconductor Manufacturing Company, Ltd. | MOS devices having epitaxy regions with reduced facets |
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