KR100195485B1 - High pressure direct injection device - Google Patents
High pressure direct injection device Download PDFInfo
- Publication number
- KR100195485B1 KR100195485B1 KR1019960053300A KR19960053300A KR100195485B1 KR 100195485 B1 KR100195485 B1 KR 100195485B1 KR 1019960053300 A KR1019960053300 A KR 1019960053300A KR 19960053300 A KR19960053300 A KR 19960053300A KR 100195485 B1 KR100195485 B1 KR 100195485B1
- Authority
- KR
- South Korea
- Prior art keywords
- fuel
- direct injection
- air
- pressure
- injector
- Prior art date
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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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
- F02M63/0265—Pumps feeding common rails
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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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
본 발명은 고압력 가솔린 다이렉트 인젝션장치에 관한 것으로, 연료탱크(13)내의 연료를 각 인젝터(11)들이 공통 접속된 컴온레일(12)로 공급시키는 연료펌프(10)와; 상기 인젝터(11)를 통해 연료가 공급되며 엔진 연소실내에 장착되는 다이렉트인젝션(20)과; 이 다이렉트인젝션(20)에 외부의 공기를 소정의 압력으로 공급시키는 에어콤프레셔(30)와; 상기 컴온레일(12)내의 잔여 압력을 연료탱크(13)로 리턴시키는 연료압력 레규레이터(40)와; 상기 에어콤프레셔(30)로 부터 공급되는 에어중 잔여 압력분을 대기로 방출시키는 에어압력 레규레이터(50)와; 트로틀포지션과 TDC펄스 및 밧데리전압등을 감지하여 상기 인젝터(11)와 다이렉트 인젝션(20)을 콘트롤하는 ECU(60)로 구성되는 것에 의해, 연비와 코스트 및 중량을 감소할 수있다.The present invention relates to a high pressure gasoline direct injection device, comprising: a fuel pump (10) for supplying fuel in a fuel tank (13) to a comon rail (12) to which injectors (11) are commonly connected; Direct injection (20) is supplied fuel through the injector 11 and mounted in the engine combustion chamber; An air compressor (30) for supplying external air to the direct injection (20) at a predetermined pressure; A fuel pressure regulator (40) for returning the residual pressure in the come-on rail (12) to the fuel tank (13); An air pressure regulator (50) for releasing residual pressure in the air supplied from the air compressor (30) to the atmosphere; By comprising the ECU 60 which detects the throttle position, the TDC pulse and the battery voltage, and controls the injector 11 and the direct injection 20, fuel economy, cost and weight can be reduced.
또, 유해 배기가스의 배출을 감소시켜 각종 배기가스 규제에 대응할 수 있는 등의 매우 유용한 발명인 것이다.In addition, it is a very useful invention such that the emission of harmful exhaust gas can be reduced to cope with various exhaust gas regulations.
Description
본 발명은 고압력 가솔린 다이렉트 인젝션장치에 관한 것으로, 더 상세하게는 연비와 코스트, 그리고 중량을 저하시키고 유해 배기가스의 방출을 줄일 수 있도록 발명된 것이다.The present invention relates to a high pressure gasoline direct injection device, and more particularly, to reduce fuel consumption, cost and weight, and to reduce the emission of harmful exhaust gas.
일반적으로 자동차의 연료계통은 도 1 에서와 같이 연료를 연료펌프에 의해 강제 공급시키고, 연료필터를 경우하여 딜리버리 파이프에서 인젝터 및 콜드스타트 인젝터로 분배된다.In general, the fuel system of an automobile is forcibly supplied with fuel by a fuel pump as shown in FIG. 1, and the fuel filter is distributed from the delivery pipe to the injector and the cold start injector.
압력 레귤레이터는 인젝터로 보내는 연료의 압력을 흡기 매니폴드내의 압력보다 항상 높은압력으로 유지하는 것으로, 남은 연료는 리턴파이프를 통해 연료탱크로 되돌려 보낸다.The pressure regulator maintains the pressure of the fuel sent to the injector at a pressure that is always higher than the pressure in the intake manifold. The remaining fuel is returned to the fuel tank through the return pipe.
그리고, 인젝터는 콘트롤유니트에서 송신하는 신호에 의해 작동하며 연료를 흡기 매니폴드내로 분사한다.The injector is operated by signals transmitted from the control unit and injects fuel into the intake manifold.
콜트스타트 인젝터는 저온 시동시에 연료를 서지탱클 분사하여 시동성을 좋게 하는 것이다.The colt start injector is to start the fuel by injecting a surge tank in a cold start.
상기와 같이 이루어진 종래 연료계통에 의하면, 날로 강화되는 배기가스규제의 대응과 더불어 중량의 다운, 코스트다운등의 문제를 해결할 수 없다.According to the conventional fuel system made as described above, it is not possible to solve the problems such as weight down, cost down, etc. in addition to the exhaust gas regulation to be reinforced.
즉, 종래 인젝트장치에 의하면 배기가스에 대한 규제대응을 위하면 중량과 코스트가 상승하고, 또 코스트와 중량을 다운시키면 배기가스규제 대응이 문제되는 등의 폐단이 있었던 것이다.In other words, according to the conventional injector, the weight and cost are increased to comply with the regulation on the exhaust gas, and the exhaust gas regulation response is problematic when the cost and weight are lowered.
도 1 은 종래 연료공급계통을 보인 블록도,1 is a block diagram showing a conventional fuel supply system,
도 2 는 본 발명의 다이렉트 인젝션 장치도.2 is a direct injection apparatus of the present invention.
도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings
10 - 연료펌프11 - 인젝터10-fuel pump 11-injector
12 - 컴온레인13 - 연료탱크12-come on lane 13-fuel tank
20 - 다이렉트인젝션30 - 에어콤프레셔20-Direct Injection 30-Air Compressor
40 - 연료압력 레규레이터50 - 에어압력 레규레이터40-Fuel Pressure Regulator 50-Air Pressure Regulator
60 - ECU60-ECU
이러한 본 발명의 목적은, 연료탱크(13)내의 연료를 각 인젝터(11)들이 공통 접속된 컴온레일(12)로 공급시키는 연료펌프(10)와;The object of the present invention is a fuel pump (10) for supplying fuel in the fuel tank 13 to the comon rail 12 to which each injector 11 is commonly connected;
상기 인젝터(11)를 통해 연료가 공급되며 엔진 연소실내에 장착되는 다이렉트인젝션(20)과;Direct injection (20) is supplied fuel through the injector 11 and mounted in the engine combustion chamber;
이 다이렉트인젝션(20)에 외부의 공기를 소정의 압력으로 공급시키는 에어콤프레셔(30)와;An air compressor (30) for supplying external air to the direct injection (20) at a predetermined pressure;
상기 컴온레일(12)내의 잔여 압력을 연료탱크(13)로 리턴시키는 연료압력 레규레이터(40)와;A fuel pressure regulator (40) for returning the residual pressure in the come-on rail (12) to the fuel tank (13);
상기 에어콤프레셔(30)로 부터 공급되는 에어중 잔여 압력분을 대기로 방출시키는 에어압력 레규레이터(50)와;An air pressure regulator (50) for releasing residual pressure in the air supplied from the air compressor (30) to the atmosphere;
트로틀포지션과 TDC펄스 및 밧데리전압등을 감지하여 상기 인젝터(11)와 다이렉트 인젝션(20)을 콘트롤하는 ECU(60)로 구성되는 것에 의해 달성된다.It is achieved by being composed of the ECU 60 which controls the injector 11 and the direct injection 20 by detecting the throttle position and the TDC pulse and the battery voltage.
상기한 본 발명에 의하면, 연비와 코스트 및 중량이 감소된다.According to the present invention described above, fuel economy, cost and weight are reduced.
또, 유해가스 배출을 줄여 각종 규제에 대응할 수 있는 것이다.In addition, it is possible to respond to various regulations by reducing the emission of harmful gases.
이하, 첨부된 도면에 의거하여 본 발명의 바람직한 실시예를 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2 는 본 발명의 회로 구성을 도시하고 있다.2 shows a circuit configuration of the present invention.
이 도면에서와 같이 연료탱크(13)내의 연료를 연료펌프(10)를 통해 컴온레일(12)로 공급시키게 되는 데, 이 컴온레일(12)에는 기존의 각 인젝터(11)들이 공통 접속된다.As shown in this figure, the fuel in the fuel tank 13 is supplied to the comon rail 12 through the fuel pump 10, and the existing injectors 11 are commonly connected to the comon rail 12.
그리고, 이 인젝터(11)를 통하여 엔진 연소실내에 장착되는 다이렉트인젝션(20)으로 연료가 보내게 된다.The fuel is then sent to the direct injection 20 mounted in the engine combustion chamber through the injector 11.
한편, 다이렉트인젝션(20)에 필요한 공기는 외부로 부터 소정의 압력으로 에어콤프레셔(30)에 의해 강제 공급시키게 된다.On the other hand, the air required for the direct injection 20 is forcibly supplied by the air compressor 30 at a predetermined pressure from the outside.
이때, 에어콤프레셔(30)로 부터 공급되는 에어중 잔여 압력분을 대기로 방출시키기 위해 에어압력 레규레이터(50)가 에어 공급라인에 접속된다.At this time, the air pressure regulator 50 is connected to the air supply line in order to discharge the residual pressure in the air supplied from the air compressor 30 to the atmosphere.
그리고, 상기 컴온레일(12)내의 잔여 압력을 연료탱크(13)로 리턴시키기 위해 연료압력 레규레이터(40)가 설치된다.In addition, a fuel pressure regulator 40 is installed to return the remaining pressure in the comon rail 12 to the fuel tank 13.
따라서, 연료펌프(10)로 부터 인젝터(11)를 거쳐 연료가 다이렉트인젝션(20)으로 공급됨과 아울러 에어콤퓨레셔(30)를 거친 에어도 함께 공급되어, ECU(60)가 다이렉트인젝션(20)을 구동할 때 연료와 에어가 동시에 연소실로 공급토록 하는 것이다.Therefore, fuel is supplied from the fuel pump 10 to the injector 11 via the injector 11, and the air passing through the air compressor 30 is also supplied, so that the ECU 60 receives the direct injection 20. Fuel and air to the combustion chamber at the same time.
이때, 상기 ECU(60)는 트로틀포지션과 TDC펄스 및 밧데리전압등을 종합적으로 감지하여 상기 인젝터(11)와 다이렉트 인젝션(20)을 콘트롤하게 된다.At this time, the ECU 60 controls the injector 11 and the direct injection 20 by comprehensively detecting the throttle position, the TDC pulse, and the battery voltage.
이상에서 설명한 바와 같이 본 발명에 의하면, 연비와 코스트 및 중량을 감소할 수 있다.As described above, according to the present invention, fuel economy, cost, and weight can be reduced.
또, 유해 배기가스의 배출을 감소시켜 각종 배기가스 규제에 대응할 수 있는 등의 매우 유용한 발명인 것이다.In addition, it is a very useful invention such that the emission of harmful exhaust gas can be reduced to cope with various exhaust gas regulations.
본 발명의 목적은 연비와 코스트 및 중량을 다운시킬 수 있도록 한 고압력 가솔린 다이렉트 인젝션장치를 제공하는 데 있다.It is an object of the present invention to provide a high pressure gasoline direct injection apparatus which can lower fuel economy, cost and weight.
본 발명의 다른 목적은 유해 배기가스의 배출을 줄여 규제에 대응할 수 있도록 한 고압력 가솔린 다이렉트 인젝션장치를 제공하는 데 있다.Another object of the present invention is to provide a high-pressure gasoline direct injection device that can reduce the emission of harmful exhaust gas to cope with the regulation.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960053300A KR100195485B1 (en) | 1996-11-11 | 1996-11-11 | High pressure direct injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960053300A KR100195485B1 (en) | 1996-11-11 | 1996-11-11 | High pressure direct injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980035069A KR19980035069A (en) | 1998-08-05 |
| KR100195485B1 true KR100195485B1 (en) | 1999-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960053300A KR100195485B1 (en) | 1996-11-11 | 1996-11-11 | High pressure direct injection device |
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| Country | Link |
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| KR (1) | KR100195485B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102019100B1 (en) | 2018-06-08 | 2019-09-06 | 주식회사 지승개발 | Nonpoint pollution source processing apparatus and construction method thereof |
-
1996
- 1996-11-11 KR KR1019960053300A patent/KR100195485B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102019100B1 (en) | 2018-06-08 | 2019-09-06 | 주식회사 지승개발 | Nonpoint pollution source processing apparatus and construction method thereof |
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| Publication number | Publication date |
|---|---|
| KR19980035069A (en) | 1998-08-05 |
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