KR200144021Y1 - Distribution type fuel injection device for plural uniform pressure stroke - Google Patents
Distribution type fuel injection device for plural uniform pressure stroke Download PDFInfo
- Publication number
- KR200144021Y1 KR200144021Y1 KR2019960020733U KR19960020733U KR200144021Y1 KR 200144021 Y1 KR200144021 Y1 KR 200144021Y1 KR 2019960020733 U KR2019960020733 U KR 2019960020733U KR 19960020733 U KR19960020733 U KR 19960020733U KR 200144021 Y1 KR200144021 Y1 KR 200144021Y1
- Authority
- KR
- South Korea
- Prior art keywords
- fuel injection
- injection device
- pressure
- plunger
- barrel
- Prior art date
Links
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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
-
- 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
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 디젤엔진의 연료 분사장치에 있어서, 배럴(Barrel)에 있는 균압홀(Hole)을 4개로 하여 매 기통으로의 분사시마다 토출포트(port)내에 있는 압력을 균일하게 하여 줌으로써 안정된 분사상태가 되도록 한 복수균압행정 디젤엔진용 분배형연료분사 장치에 관한 것으로, 하이드로올릭 헤드(Hydraulic head)에 분배배럴과 플런저 및 딜리버리밸브가 장착된 연료 분사장치에 있어서, 분배배럴의 주벽에 1개의 흡입포트와 4개의 토출포트와 함께 4개의 균압홀을 형성한 것이다.The present invention is a fuel injector of a diesel engine, which has four equalization holes in a barrel to uniformly pressurize the pressure in the discharge port every time the cylinder is injected into a stable injection state. A fuel injection device having a distribution barrel, a plunger and a delivery valve mounted on a hydraulic head, comprising: one suction port on the main wall of the distribution barrel. And four equalization holes together with four discharge ports.
Description
본 고안은 디젤엔진의 연료 분사장치에 있어서, 배럴(Barrel)에 있는 균압홀(Hole)을 4개로 하여 매 기통으로의 분사시마다 토출포트(port)내에 있는 압력을 균일하게 하여 줌으로써 안정된 분사상태가 되도록 한 복수균압행정 디젤엔진용 분배형연료분사 장치에 관한 것이다.The present invention is a fuel injector of a diesel engine, which has four equalization holes in a barrel to uniformly pressurize the pressure in the discharge port every time the cylinder is injected into a stable injection state. A distributed fuel injection device for a plurality of equal pressure stroke diesel engines is disclosed.
디젤기관의 연료분사장치는 연료탱크내의 연료를 연료펌프를 거쳐 하이드로올릭헤드(Hydraulic head)에 장착된 플런저와 분배배럴의 분배에 의해 딜리버리밸브를 거쳐 노즐로 분사되는 것이다.The fuel injection of the diesel engine is injected into the nozzle through the delivery valve by distributing the fuel in the fuel tank through the fuel pump and the distribution of the plunger and the distribution barrel mounted on the hydraulic head.
기존의 배럴에는 기통수와 같은 토출포트가 4개 구성되고, 1개의 균압홀과 1개의 흡입포트가 있으며, 플런저에는 기통수와 같은 슬리트(slit)와 1개의 토출 슬리트, 1개의 균압슬리트로 되어 있다.The existing barrel has four discharge ports, such as cylinder water, one equalization hole and one suction port, and the plunger has a slitting, one discharge slits, and one equalization slot. It's a lit.
전기한 기존의 연료분사장치는 그 배럴에 형성된 균압홀이 기통수와 일치되지 않는 1개로 되어 있어 균압행정시에 4개의 토출포트내의 토출압력을 동시에 균일하게 조정하지 못하므로서 분사상태가 안정스럽지 못한 문제가 있다.The conventional fuel injection device described above has one equalization hole formed in the barrel, which does not match the number of cylinders. Therefore, the injection pressure is not stable because the discharge pressure in the four discharge ports cannot be uniformly adjusted at the same time during the equalization stroke. there is a problem.
본 고안은 복수균압행정 디젤엔진용 분배형 연료분사장치에 있어서, 전기한 기존의 문제점을 제거하고, 연료의 균압행정이 동시에 이루어지게 하여 안정된 분사 상태가 되도록 하기 위하여 배럴의 균압홀을 4개로 하여 균압행정시에 토출포트내에 있는 압력을 동시에 균일하게 하여 줌으로써 안정된 분사상태가 이루어지게 한 연료 분사장치를 고안한 것이다.The present invention is to distribute the fuel injection device for a multiple pressure stroke diesel engine, to eliminate the existing problems, and to equalize the fuel stroke at the same time to make a stable injection state of the four equalization holes of the barrel The fuel injector is designed to achieve a stable injection state by simultaneously equalizing the pressure in the discharge port during the equalization stroke.
도 1 은 본 고안의 분사행정시 설명도1 is an explanatory view of the injection stroke of the present invention
도 2 는 본 고안의 균압행정시 설명도2 is an explanatory diagram of equal pressure administration of the present invention
도 3 은 본 고안 복수 균압배럴의 단면도Figure 3 is a cross-sectional view of the subject multiple pressure equalization barrel
* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
1 : 고압챔버 2 : 흡입포트1: high pressure chamber 2: suction port
3 : 흡입슬리트 4 : 플런저3: suction slit 4: plunger
5 : 분배배럴 7 : 딜리버리밸브5: Distribution Barrel 7: Delivery Valve
8, 8' : 균압슬리트 9 : 토출포트8, 8 ': Equal pressure slitting 9: Discharge port
9' : 토출홀 10 : 균압홀9 ': discharge hole 10: equalization hole
이하, 본 고안의 실시예를 첨부도면에 의하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail by the accompanying drawings.
도 1 및 도 2는 디젤엔진의 연료분사장치 중 하이드로올릭 헤드부분을 도시한 것으로서, 도 1은 분사행정시의 단면도이고, 도 2는 균압행정시의 단면도이다.1 and 2 show a hydro-oly head portion of a fuel injection device of a diesel engine, FIG. 1 is a sectional view at the time of injection stroke, and FIG. 2 is a sectional view at the pressure equalization stroke.
하이드로올릭헤드(20)에 분배배럴(5)과 플런저(4) 및 딜리버리 밸브(7)가 장착된 연료 분사장치에 있어서, 도 3의 도시와 같이 분배배럴(5)의 주벽에 1개의 흡입포트(2)와 4개의 토출포트(9)와 함께 균압홀(10)을 4개로 구성한다.In the fuel injector equipped with the distribution barrel 5, the plunger 4, and the delivery valve 7 in the hydro-olic head 20, one suction port is provided on the circumferential wall of the distribution barrel 5 as shown in FIG. Four equalization holes 10 are formed together with (2) and four discharge ports 9.
플런저(4)에도 기존의 흡입슬리트(3) 및 토출슬리트(8) 및 균압슬리트(8')를 그대로 유지한다. 또, 플런저(4)의 균압슬리트(8')를 4개로 변경하여, 분배배럴(5)의 균압홀(10)은 1개로 유지하는 경우도 동일한 효과를 볼 수 있다.In the plunger 4, the existing suction slits 3, the discharge slits 8 and the pressure equalizing slits 8 'are kept as they are. The same effect can also be obtained when the equalization slits 8 'of the plunger 4 are changed to four and the equalization holes 10 of the distribution barrel 5 are kept to one.
이와 같은 연료분사장치는 플런저(4)가 하강할 때 배럴(5)의 흡입포트(2)와 플런저(4)의 흡입슬리트(3)가 일치하면서 펌프실내의 연료유가 고압챔버(1)와 플런저 내부로 흡입되고, 플런저(4)가 상승하면서 플런저(4)의 토출슬리트(8)와 배럴(5)의 토출포트(9) 및 토출홀(9')과 만나 딜리버리밸브(7) 스프링의 세트력을 이겨 딜리버리밸브(7)를 밀어올려 도 1의 도시와 같은 상태로 분사하게 된다.The fuel injection is such that when the plunger 4 descends, the suction port 2 of the barrel 5 and the suction slit 3 of the plunger 4 coincide with each other. The suction valve is sucked into the plunger, and the plunger 4 is raised to meet the discharge slits 8 of the plunger 4, the discharge port 9 and the discharge hole 9 'of the barrel 5, and the delivery valve 7 spring. By pushing the set force of and pushes the delivery valve (7) is sprayed in a state as shown in FIG.
플런저(4)는 다시 1회전 하면서 엔진의 기통수와 같은 각 토출포트(9)로 분사시킨 후 바로 배럴(5)의 토출포트(9) 및 토출홀(9')과 플런저(4)의 균압홀(10)과 만나게 되어 도 2의 도시와 같은 상태로 되므로 배럴(5)의 토출포트(9)와 토출홀(9') 사이에 있는 연료유를 펌프실내압과 같은 압력으로 떨어뜨리는 것이다.The plunger 4 is rotated once again and injected into each discharge port 9 such as the number of cylinders of the engine, and immediately after the discharge port 9 and the discharge hole 9 ′ of the barrel 5 are equal to the plunger 4. Since the pressure hole 10 meets the state shown in FIG. 2, the fuel oil between the discharge port 9 and the discharge hole 9 ′ of the barrel 5 is dropped to a pressure equal to the internal pressure of the pump chamber.
이상과 같이 본 고안은 배럴에 있는 균압홀을 4개로 하여 매 기통으로의 분사시마다 토출포트내에 있는 압력을 균일하게 하여 줌으로써 안정된 분사상태가 이루어지는 효과가 있다.As described above, the present invention has the effect of achieving a stable injection state by making four pressure equalizing holes in the barrel equalize the pressure in the discharge port for each injection into the cylinder.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960020733U KR200144021Y1 (en) | 1996-07-12 | 1996-07-12 | Distribution type fuel injection device for plural uniform pressure stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960020733U KR200144021Y1 (en) | 1996-07-12 | 1996-07-12 | Distribution type fuel injection device for plural uniform pressure stroke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR980008577U KR980008577U (en) | 1998-04-30 |
| KR200144021Y1 true KR200144021Y1 (en) | 1999-06-15 |
Family
ID=19461396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960020733U KR200144021Y1 (en) | 1996-07-12 | 1996-07-12 | Distribution type fuel injection device for plural uniform pressure stroke |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200144021Y1 (en) |
-
1996
- 1996-07-12 KR KR2019960020733U patent/KR200144021Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR980008577U (en) | 1998-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE50010227D1 (en) | FUEL INJECTION SYSTEM FOR A COMBUSTION ENGINE | |
| GB777536A (en) | Improvements in or relating to fuel injection equipment | |
| ES2168981A1 (en) | Fuel injection method and system for an internal combustion engine | |
| EP3885546A1 (en) | Pre-chamber type diesel engine | |
| US3348488A (en) | Distributor fuel injection pump with precharging and pilot injection | |
| KR200144021Y1 (en) | Distribution type fuel injection device for plural uniform pressure stroke | |
| GB1046951A (en) | Liquid fuel injection pumps for use with internal combustion engines | |
| GB1145977A (en) | Improvements in fuel injection pumps for internal combustion engines | |
| US4229148A (en) | Fuel injection pump | |
| DK176162B1 (en) | Fuel pump for internal combustion engines, especially large slow-moving marine diesel engines | |
| US6260538B1 (en) | Fuel system | |
| JPS54134222A (en) | Distributive fuel injection pump | |
| JPS56106060A (en) | Fuel injector for internal combustion engine | |
| US4951626A (en) | Electrically controlled fuel injection pump | |
| CN105697205B (en) | A kind of array distribution formula electrical control oil spray pump high pressure fuel distributor | |
| KR100296314B1 (en) | Delivery valve of injection pump for diesel engine | |
| US4414947A (en) | Fuel injection system for multi-cylinder internal combustion engines, having high injection pressure | |
| KR950006881B1 (en) | Fuel injection pump for i. c. engine | |
| EP0978648B1 (en) | Distributor arrangement | |
| JPS6079153A (en) | Multi-fuel injection valve | |
| JPS58206867A (en) | Different liquid injecting apparatus for multi-cylinder internal-combustion engine | |
| JP2704634B2 (en) | Fuel supply device for fuel injection pump | |
| JPH0216356A (en) | Distributing and control valve for fuel injection pump | |
| RU1825884C (en) | Internal-combustion engine | |
| JPH0455249Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| LAPS | Lapse due to unpaid annual fee |