KR200144018Y1 - Structure for adjusting the valve lift of the fuel injector for a compressed natural gas engine - Google Patents
Structure for adjusting the valve lift of the fuel injector for a compressed natural gas engine Download PDFInfo
- Publication number
- KR200144018Y1 KR200144018Y1 KR2019960024261U KR19960024261U KR200144018Y1 KR 200144018 Y1 KR200144018 Y1 KR 200144018Y1 KR 2019960024261 U KR2019960024261 U KR 2019960024261U KR 19960024261 U KR19960024261 U KR 19960024261U KR 200144018 Y1 KR200144018 Y1 KR 200144018Y1
- Authority
- KR
- South Korea
- Prior art keywords
- valve lift
- fuel injector
- fuel
- valve
- compressed natural
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 24
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract description 10
- 239000003345 natural gas Substances 0.000 title abstract description 5
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
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
본 고안은 압축 천연가스를 연료로 사용하는 엔진에 장착되는 연료분사기(CNG INJECTOR)의 밸브 리프트(Valve Lift) 조절구조에 관한 것으로,The present invention relates to a valve lift control structure of a fuel injector (CNG INJECTOR) mounted on an engine using compressed natural gas as fuel.
연료분사기 몸체의 선단에 노즐넛트로 결합된 노즐몸체 내측에 니들밸브가 내입되어그 전후 이동에 따라 연료를 분사시키는 연료분사기에 있어서, 니들밸브의 후단을 직선형으로 형성하고, 이에 임의의 두께와 삽입홈을 갖는 원판상의 리프트피스를 삽입하여 그 두께에 따라 밸브리프트를 조절되게 한 것이다.In a fuel injector in which a needle valve is inserted into a nozzle body coupled to a nozzle nut at the tip of the fuel injector body and injects fuel according to its forward and backward movement, the rear end of the needle valve is formed in a straight line, and thus the thickness and insertion of the needle valve are linear. The lift piece on the disk with groove is inserted to adjust the valve lift according to its thickness.
Description
본 고안은 압축 천연가스를 연료로 사용하는 엔진에 장착되는 연료분사기(CNG INJECTOR)의 밸브 리프트(Valve Lift) 조절구조에 관한 것이다.The present invention relates to a valve lift control structure of a fuel injector (CNG INJECTOR) mounted on an engine using compressed natural gas as fuel.
압축 천연가스나 가솔린을 연료로 사용하는 엔진 연료분사기는 니들 밸브의 움직임의 스트로크를 규제하기 위한 밸브리프트를 갖는다. 그런데 기존의 연료분사기의 밸브리프트의 조절방식은 도 4 의 도시와 같이 노즐몸체(3)와 니들밸브(4)의 후측에 원판(9)의 형태를 형성하여 그와 맞닿는 연료분사기 몸체(1)간의 간격에 밸브리프트(7)가 형성되게 하였다.Engine fuel injectors using compressed natural gas or gasoline as fuel have a valve lift to regulate the stroke of the movement of the needle valve. However, the control method of the valve lift of the conventional fuel injector forms a disc 9 on the rear side of the nozzle body 3 and the needle valve 4 as shown in FIG. The valve lift 7 was formed in the interval between the two.
그러나 전기한 밸브리프트의 형성방법은 노즐몸체와 니들밸브의 성형시에 미리 밸브리프트를 고려하여 가공하여야 되기 때문에 작은 치수의 밸브리프트를 맞추기 위해 각 부품의 치수가 매우 작은 공차를 가질 수 밖에 없어 가공의 정밀성이 높아야 되므로 가공에 어려움이 따랐다.However, the valve lift formation method mentioned above must be processed in consideration of the valve lift when forming the nozzle body and the needle valve. Therefore, the size of each component must have a very small tolerance to match the valve lift of the small size. Machining was difficult because of high precision.
본 고안은 연료분사기를 제작함에 있어서, 전기한 바와 같은 문제점을 제거코저 임의의 두께를 갖는 리프트 피스(Lift Piece)를 별도 형성하여 이에 의해 밸브리프트의 간격을 조절할 수 있게 한 압축 천연가스엔진용 연료분사기의 밸브 리프트 조절구조를 고안한 것이다.The present invention eliminates the above-mentioned problems in the manufacture of a fuel injector, and removes a lift piece having an arbitrary thickness so that the fuel for compressed natural gas engine can adjust the interval of the valve lift. The valve lift control structure of the injector is designed.
도 1 은 본 고안의 분사기의 전체 단면도1 is a cross-sectional view of the injector of the present invention
도 2 는 본 고안의 분사기의 밸브리프트 설명도2 is an explanatory view of the valve lift of the injector of the present invention
도 3 은 본 고안의 리프트피스의 사시도3 is a perspective view of a lift piece of the present invention
도 4 는 기존의 연료분사기의 밸브리프트 설명도4 is an explanatory view of a valve lift of a conventional fuel injection machine;
도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings
1 : 연료분사기 몸체 2 : 노즐넛트1: fuel injector body 2: nozzle nut
3 : 노즐몸체4 : 니들밸브3: nozzle body 4: needle valve
5 : 삽입홈6 : 리프트피스5: insertion groove 6: lift piece
7 : 밸브리프트7: valve lift
이하, 본 고안의 실시예를 첨부 도면에 의하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail by the accompanying drawings.
도 1 및 도 2의 도시와 같이 연료분사기 몸체(1)의 선단에 노즐넛트(2)로 결합된 노즐몸체(3) 내측에 니들밸브(4)가 내입되어 그 전후 이동에 따라 연료를 분사시키는 연료분사기에 있어서, 니들밸브(4)의 후단을 직선형으로 형성하고, 이에 도 3의 도시와 같이 임의의 두께와 삽입홈(5)을 갖는 원판상의 리프트피스(6)를 형성하여 삽입하여 밸브리프트(7)를 조절되게 한 것이다.As shown in FIGS. 1 and 2, a needle valve 4 is inserted into the nozzle body 3 coupled to the nozzle nut 2 at the tip of the fuel injector body 1 to inject fuel according to its forward and backward movement. In the fuel injector, the rear end of the needle valve 4 is formed in a straight line, and as shown in FIG. 3, a disk-shaped lift piece 6 having an arbitrary thickness and an insertion groove 5 is formed and inserted into the valve lift. (7) is to be adjusted.
도면 중 미설명부호 8은 아마츄어(AMATEUR)이다.Reference numeral 8 in the drawings is an amateur AMATEUR.
이와 같이 된 본 고안의 작용을 설명한다.The operation of the present invention thus made will be described.
노즐몸체(3) 내측에 결합되는 니들밸브(4)를 모두 동일한 규격으로 대량 생산하여도 이에 각기 다른 두께를 갖는 리프트피스(6)를 삽입홈(5)을 이용하여 결합 사용하므로서 그 두께에 따라 제한되는 니들밸브(4)의 전후 이동 스트로크가 달라지므로 그 이동구간에 따른 밸브리프트(7)를 임의대로 조절할 수 있다.Although the needle valves 4 coupled to the inside of the nozzle body 3 are mass-produced in the same size, the lift pieces 6 having different thicknesses are coupled to each other using the insertion grooves 5 according to the thickness thereof. Since the forward and backward movement stroke of the limited needle valve 4 is different, the valve lift 7 according to the movement section can be arbitrarily adjusted.
그러므로 제작시에 밸브리프트(7)를 고려할 필요가 없어 대량 생산이 가능하므로 원가절감을 이룰 수 있는 것이다.Therefore, there is no need to consider the valve lift (7) at the time of mass production is possible to achieve a cost reduction.
이상과 같이 본 고안은 연료분사기에 있어서, 임의의 두께를 갖는 리프트 피스를 별도 형성하여 이에 의해 밸브리프트를 조절되게 하므로서 연료분사기의 제작시에 밸브리프트를 미리 고려할 필요가 없이 그 제작이 용이하고 동일한 규격으로 대량 생산할 수 있어 원가 절감의 효과도 있다.As described above, the present invention provides a fuel injection machine, in which a lift piece having an arbitrary thickness is separately formed so that the valve lift can be adjusted by the fuel injection machine. It can also be mass-produced in size, which can reduce costs.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960024261U KR200144018Y1 (en) | 1996-08-12 | 1996-08-12 | Structure for adjusting the valve lift of the fuel injector for a compressed natural gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960024261U KR200144018Y1 (en) | 1996-08-12 | 1996-08-12 | Structure for adjusting the valve lift of the fuel injector for a compressed natural gas engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980010802U KR19980010802U (en) | 1998-05-15 |
| KR200144018Y1 true KR200144018Y1 (en) | 1999-06-15 |
Family
ID=19463724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960024261U KR200144018Y1 (en) | 1996-08-12 | 1996-08-12 | Structure for adjusting the valve lift of the fuel injector for a compressed natural gas engine |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200144018Y1 (en) |
-
1996
- 1996-08-12 KR KR2019960024261U patent/KR200144018Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980010802U (en) | 1998-05-15 |
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