KR0136535Y1 - Fuel rail of a natural gas automobile - Google Patents
Fuel rail of a natural gas automobile Download PDFInfo
- Publication number
- KR0136535Y1 KR0136535Y1 KR2019960026579U KR19960026579U KR0136535Y1 KR 0136535 Y1 KR0136535 Y1 KR 0136535Y1 KR 2019960026579 U KR2019960026579 U KR 2019960026579U KR 19960026579 U KR19960026579 U KR 19960026579U KR 0136535 Y1 KR0136535 Y1 KR 0136535Y1
- Authority
- KR
- South Korea
- Prior art keywords
- fuel
- natural gas
- fuel rail
- fuel supply
- peripheral surface
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0245—High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
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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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0215—Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
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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
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0017—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor related to fuel pipes or their connections, e.g. joints or sealings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
본 고안은 천연가스자동차의 연료레일에 관한 것으로서, 엔진의 회전속도가 빠르게 변화 하더라도 각 실린더에 항상 균등하고, 충분한 연료가 공급되도록 하기 위한 것으로, 양단부가 막힌 파이프형상으로 되고, 내부에는 연료가 채워지는 공간부가 형성되며, 양측 단부로부터 소정 거리의 뒷쪽 외주면에는 나사관통공을 갖는 브라켓이 형성되는 한편, 앞쪽의 외주면에는 길이 방향을 따라 일정한 간격으로 다수개의 인젝터가 설치되고, 우측의 단부쪽 외주면에는 연료공급파이프와 연결되는 연료공급니플이 형성된 천연가스자동차의 연료레일에 있어서, 상기 연료레일의 양단부측 앞쪽 외주면에는 연료파이프가 연결되는 연료공급니플이 각각 장착되어 구성한 것이다.The present invention relates to a fuel rail of a natural gas vehicle, so that even if the rotational speed of the engine changes rapidly, the cylinders are always equally supplied and sufficient fuel is supplied. Is formed with a space, a bracket having a screw through hole is formed on the rear outer peripheral surface of the predetermined distance from both ends, while the front outer peripheral surface is provided with a plurality of injectors at regular intervals along the longitudinal direction, the outer peripheral surface on the right end side In a fuel rail of a natural gas vehicle in which a fuel supply nipple is connected to a fuel supply pipe, a fuel supply nipple to which a fuel pipe is connected is mounted on an outer circumferential surface at both ends of the fuel rail.
Description
본 고안은 천연가스자동차의 연료레일에 관한 것으로, 보다 자세하게는 엔진 회전속도의 증가에 따라서 소모량이 많아지는 연료를 안정적으로 공급하기 위하여, 엔진에 연료를 공급하는 연료레일에 유입구를 복수개로 설치한 천연가스자동차의 연료레일에 관한 것이다.The present invention relates to a fuel rail of a natural gas vehicle, and more particularly, in order to stably supply fuel that is consumed as the engine rotation speed increases, a plurality of inlets are provided in the fuel rail for supplying fuel to the engine. The fuel rail of a natural gas vehicle.
종래 천연가스자동차의 연료레일은 도 1에 도시한 바와 같이 양단부가 막힌 파이프형상으로 되고, 내부에는 연료가 채워지는 공간부가 형성되며, 양측 단부로부터 소정 거리의 뒤쪽 외주면(2)에는 나사관통공(6)을 갖는 브라켓(4)이 형성되는 한편, 우측 단부로부터 소정 거리의 외주면(2) 앞쪽에는 연료공급파이프(30)가 연결되는 연료공급니플(8)이 형성되고, 그 옆으로는 길이 방향을 따라 일정한 간격으로 다수개의 연료인젝터(25)가 장착된다.As shown in FIG. 1, a fuel rail of a conventional natural gas vehicle has a pipe shape in which both ends are blocked, and a space part in which fuel is filled is formed therein, and a screw through hole is formed at the rear outer peripheral surface 2 of a predetermined distance from both ends. A bracket 4 having 6) is formed, while a fuel supply nipple 8, to which a fuel supply pipe 30 is connected, is formed in front of the outer circumferential surface 2 at a predetermined distance from the right end thereof, and in the longitudinal direction thereof. A plurality of fuel injectors 25 are mounted at regular intervals.
이와 같이 형성된 천연가스자동차의 연료레일은 엔진의 흡기다기관(35)에 설치되며, 이때 상기의 인젝터(25)는 상기 흡기다기관(35)의 설치공(36)에 각각 삽입 설치된다.The fuel rail of the natural gas vehicle thus formed is installed in the intake manifold 35 of the engine, and the injector 25 is inserted into the installation hole 36 of the intake manifold 35, respectively.
연료공급파이프를 통해 연료레일로 공급된 연료(천연가스:NG)는 연료인젝터를 통해 각 실린더로 분배된다.The fuel (natural gas: NG) supplied to the fuel rail through the fuel supply pipe is distributed to each cylinder through the fuel injector.
한편, 공급되는 상기의 연료는 대기압보다 약간 높은 압력을 갖는 기체상태의 천연가스이며, 상기의 연료인젝터는 일종의 솔레노이드식 밸브장치로서, 밸브 몸체에 설치된 솔레노이드가 ECM(Electronic Control Module)의 신호에 따라 자화(磁化)가 되며 플런져밸브를 들어올리고 이때, 연료분사공을 통해 상기의 연료(천연가스:NG)가 상대적으로 압력이 낮은 실린더내부로 분사된다.On the other hand, the fuel supplied is a natural gas of a gas state having a pressure slightly higher than atmospheric pressure, the fuel injector is a kind of solenoid valve device, the solenoid installed in the valve body according to the signal of ECM (Electronic Control Module) It becomes magnetized and lifts the plunger valve. At this time, the fuel (natural gas: NG) is injected into the cylinder having a relatively low pressure through the fuel injection hole.
천연가스 자동차는 가솔린 자동차와는 달리 기체상태로 된 연료가 사용되므로 단위 체적당 연료의 중량이 매우 작아 충분한 연료의 공급을 위해서 용량이 큰 연료레일이 사용된다.Unlike gasoline cars, natural gas vehicles use fuel in gaseous state, so the fuel weight per unit volume is very small, and a large-capacity fuel rail is used to supply sufficient fuel.
하지만, 종래 천연가스자동차의 연료레일은 연료공급니플이 하나이기 때문에 엔진의 회전속도가 빠르게 증가될 경우 충분한 연료가 공급되지 못하는 문제점이 있으며, 또한, 한 쪽으로 치우쳐서 설치되어 있기때문에 연료공급니플로부터 멀리 설치되어 있는 실린더는 가까운 곳에 있는 실린더에 비해 상대적으로 연료의 공급이 충분치 못해 엔진파워의 밸런스가 맞지않고 출력이 감소되는 문제점이 있다.However, since the fuel rail of the conventional natural gas vehicle has only one fuel supply nipple, there is a problem in that sufficient fuel is not supplied when the rotation speed of the engine is increased rapidly. Also, since the fuel rail is installed in one side, it is far from the fuel supply nipple. The installed cylinder has a problem that the output of the engine is not balanced and the output is reduced due to insufficient fuel supply compared to the cylinder in the vicinity.
본 고안은 상기와 같은 문제점을 해결하기 위한 것으로, 그 목적은 엔진의 회전속도가 빠르게 변화 하더라도 항상 충분한 연료가 공급되고, 각실린더에 똑같은 양의 연료가 공급되도록 하기 위한 새로운 형태의 천연가스자동차의 연료레일을제공하고자 하는 것이다.The present invention is to solve the above problems, and its purpose is to provide a sufficient amount of fuel, even if the rotational speed of the engine changes rapidly, and to provide the same amount of fuel to each cylinder of the new type of natural gas vehicle To provide a fuel rail.
이러한, 목적을 달성하기 위하여, 본 고안은 양단부가 막힌 파이프형상으로 되고, 내부에는 연료가 채워지는 공간부가 형성되며, 양측 단부로부터 소정 거리의 뒷쪽 외주면에는 나사관통공을 갖는 브라켓이 형성되는 한편, 앞쪽의 외주면에는 길이 방향을 따라 일정한 간격으로 다수개의 인젝터가 설치된 천연가스자동차의 연료레일에 있어서, 상기 연료레일의 양단부측 앞쪽 외주면에는 연료파이프가 연결되는 연료공급니플이 각각 형성되어 이루어진 것을 특징으로 한다.In order to achieve the above object, the present invention has a pipe shape in which both ends are clogged, a space portion in which fuel is filled is formed, and a bracket having a screw through hole is formed at the rear outer peripheral surface of a predetermined distance from both ends, In the fuel rail of the natural gas vehicle is provided with a plurality of injectors at regular intervals along the longitudinal direction on the front outer peripheral surface, the fuel supply nipple is connected to the fuel pipe is formed on the front outer peripheral surface of both ends of the fuel rail, respectively. do.
도 1은 종래 천연가스자동차의 연료레일을 나타내는 분해사시도,1 is an exploded perspective view showing a fuel rail of a conventional natural gas vehicle,
도 2는 본 고안에 따른 천연가스자동차의 연료레일을 나타내는 분해사시도이다.2 is an exploded perspective view showing a fuel rail of a natural gas vehicle according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 연료레일 20 : 연료공급니플10: fuel rail 20: fuel supply nipple
25 : 인젝터 30 : 연료파이프25: injector 30: fuel pipe
도 2는 본 고안에 따른 연료레일을 나타내는 분해사시도로서, 이에 도시한 바와 같이 양단부가 막힌 파이프 형상으로 되고, 내부에는 연료가 채워지는 공간부(18)가 형성되며, 양측 단부로부터 소정 거리의 뒷쪽 외주면(12)에는 나사관통공(16)을 갖는 브라켓(14)이 형성되는 한편, 앞쪽의 외주면(12)에는 길이 방향을 따라 일정한 간격으로 다수개의 인젝터(25)가 설치되며, 상기 연료레일(10)의 양단부측 앞쪽 외주면(12)에는 연료공급파이프(30)가 연결되는 연료공급니플(20)이 각각 형성된다.Figure 2 is an exploded perspective view showing a fuel rail according to the present invention, as shown therein is a pipe shape blocked at both ends, there is formed a space portion 18 is filled with fuel, the rear of a predetermined distance from both ends The outer circumferential surface 12 is formed with a bracket 14 having a screw through hole 16, while the front outer circumferential surface 12 is provided with a plurality of injectors 25 at regular intervals along the longitudinal direction, the fuel rail ( The fuel supply nipples 20 to which the fuel supply pipes 30 are connected are formed at the front outer circumferential surfaces 12 at both end sides of 10.
이와 같이 형성된 천연가스자동차의 연료레일은 엔진의 흡기다기관(35)에 고정브라켓(14)이 고정볼트로 고정되며, 양 단부측의 연료공급니플(20)에는 연료공급파이프(30)가 각각 연결되는 한편, 상기의 인젝터(25)는 상기 흡기다기관(35)의 설치공(36)에 각각 삽입 설치된다.The fuel rail of the natural gas vehicle thus formed is fixed to the intake manifold 35 of the engine by the fixing bracket 14 fixed bolts, and the fuel supply pipes 30 are connected to the fuel supply nipples 20 at both ends. On the other hand, the injector 25 is inserted into the installation hole 36 of the intake manifold 35, respectively.
본 고안은 두개의 연료공급니플을 통해서 연료가 공급되므로 항상 충분한 공급이 이루어지며, 여러곳에서 공급되므로 각 실린더에 똑같은 분배가 이루어져 엔진출력의 저하가 방지되는 효과가 있다.The present invention is supplied with fuel through two fuel supply nipples, so that sufficient supply is always made, and since it is supplied from several places, the same distribution is made to each cylinder, thereby reducing the engine output.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960026579U KR0136535Y1 (en) | 1996-08-29 | 1996-08-29 | Fuel rail of a natural gas automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960026579U KR0136535Y1 (en) | 1996-08-29 | 1996-08-29 | Fuel rail of a natural gas automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980012990U KR19980012990U (en) | 1998-06-05 |
| KR0136535Y1 true KR0136535Y1 (en) | 1999-03-20 |
Family
ID=19465240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960026579U KR0136535Y1 (en) | 1996-08-29 | 1996-08-29 | Fuel rail of a natural gas automobile |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0136535Y1 (en) |
-
1996
- 1996-08-29 KR KR2019960026579U patent/KR0136535Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980012990U (en) | 1998-06-05 |
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