KR200208877Y1 - Timing sleeve control structure of fuel injection pump for diesel engine - Google Patents
Timing sleeve control structure of fuel injection pump for diesel engine Download PDFInfo
- Publication number
- KR200208877Y1 KR200208877Y1 KR2019970029556U KR19970029556U KR200208877Y1 KR 200208877 Y1 KR200208877 Y1 KR 200208877Y1 KR 2019970029556 U KR2019970029556 U KR 2019970029556U KR 19970029556 U KR19970029556 U KR 19970029556U KR 200208877 Y1 KR200208877 Y1 KR 200208877Y1
- Authority
- KR
- South Korea
- Prior art keywords
- timing
- timing sleeve
- sleeve
- control structure
- fuel injection
- Prior art date
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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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/16—Adjustment of injection timing
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/48—Assembling; Disassembling; Replacing
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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)
- High-Pressure Fuel Injection Pump Control (AREA)
Abstract
본 고안은 디젤엔진용 연료분사장치에 관한 것으로, 연소실에 연료를 분사시킴에 있어서 분사시기 및 분사율을 제어하는 타이밍 슬리브의 상, 하 방향 작동을 위한 제어구조에 관한 것으로,The present invention relates to a fuel injection device for a diesel engine, and relates to a control structure for up and down operation of a timing sleeve for controlling the injection timing and injection rate in injecting fuel into a combustion chamber.
펌프하우징의 내부에 타이밍 슬리브가 장착된 플런저가 스프링으로 탄설되고, 그 하부에는 캠이 축설되며 상부에는 딜리버리 밸브 홀더가 장착된 연료펌프에 있어서, 타이밍 로드에 기어형상의 링을 축삽하여 록크 스크류에 의해 고정하고, 그 링의 치차 부분의 타이밍 슬리브 외주면의 스크류에 치합되게 한 것이다.A fuel pump with a timing plunger fitted with a timing sleeve inside a pump housing, a cam built into a lower portion thereof, and a delivery valve holder mounted on an upper portion thereof, in which a gear-shaped ring is inserted into a timing rod to a lock screw. And a screw on the outer circumferential surface of the timing sleeve of the gear portion of the ring.
Description
본 고안은 디젤엔진용 연료분사장치에 관한 것으로, 연소실에 연료를 분사시킴에 있어서 분사시기 및 분사율을 제어하는 타이밍 슬리브의 상, 하 방향 작동을 위한 제어구조에 관한 것이다.The present invention relates to a fuel injection device for a diesel engine, and relates to a control structure for the up and down operation of the timing sleeve for controlling the injection timing and injection rate in the injection of fuel into the combustion chamber.
디젤엔진용 연료분사장치는 디젤엔진의 연소실에 엔진이 필요료 하는 적정의 연료량을 필요한 시기에 적정한 형태로 분사시키는 기능을 주로 하는 장치이다.The fuel injection device for a diesel engine is a device which mainly functions to inject a proper amount of fuel required by an engine into a combustion chamber of a diesel engine in an appropriate form at a necessary time.
이러한 기능을 수행하기 위하여 연료분사장치는 도 1 의 도시와 같이 분사량을 고압화하는 펌프부(3), 분사량을 제어하는 거버너부(4) 및 분사시기를 제어하는 타이머부(1)로 구성되어 있다.In order to perform this function, the fuel injection device is composed of a pump part 3 for increasing the injection amount, a governor part 4 for controlling the injection amount, and a timer part 1 for controlling the injection timing, as shown in FIG. have.
그 타이머부(1)는 타이밍 슬리브(11)가 상하방향으로 이동되면서 그 기능을 수행하며 타이밍 슬리브(11)가 아래 방향으로 움직이면 플런저(10)의 방출포트를 일찍 막음으로 분사시기가 빨라지며 반대로 위쪽으로 움직이면 분사시기가 느려지게 된다.The timer unit 1 performs the function while the timing sleeve 11 is moved up and down. When the timing sleeve 11 is moved downward, the timing of injection is early by blocking the discharge port of the plunger 10. Moving upwards will slow down the jet.
이러한 타이밍슬리브(11)의 상하 운동 제어구조로서 종래의 것은 도 6 의 도시와 같이, 타이머 슬리브(11)의 일측홈(11')에 타이밍 로드(7)에 끼워진 한 개의 핀(15)의 결합에 의해 타이밍 슬리브(11)를 상하로 조절하게 구성되어 있다.As the vertical motion control structure of the timing sleeve 11, the conventional one is coupled to one pin 15 fitted to the timing rod 7 in one groove 11 'of the timer sleeve 11, as shown in FIG. It is comprised so that the timing sleeve 11 may be adjusted up and down by this.
전기한 종래의 타이밍 슬리브 제어구조는 한 개의 핀으로 상하 조절을 하는 것이어서 기구적으로 상한계와 하한계의 폭이 짧으며 엔진에서 요구하는 분사시기의 범위 이상이 된다고 해도 작동하기 위한 공간을 많이 차지하는 문제가 있고, 플런저와 타이밍 슬리브와의 접촉 운동에서 마찰 저항 즉 유체점성과의 마찰에 의하여 플런저가 상하 운동시 타임슬리브의 떨림 현상이 발생하는 문제가 있다.The conventional timing sleeve control structure described above uses a single pin to adjust up and down, so that the upper and lower limits are mechanically short, and take up a lot of space to operate even if the engine exceeds the range of injection timing required by the engine. In the contact motion between the plunger and the timing sleeve, there is a problem in that the slewing of the time sleeve occurs when the plunger moves up and down due to friction between the frictional resistance, that is, fluid viscosity.
본 고안은 타이밍 슬리브의 제어구조에 있어서 전기한 바와 같은 문제점을 제거코저 떨림현상이 발생될 수 있는 근본원인이 될 수 있는 요인을 좀 더 안정적으로 하기 위한 방편으로 기어 형상의 링에 의해 타이밍로드 중심에서 타이밍 슬리브의 접촉점까지 거리를 줄여 모멘트아암을 짧게 하므로서 안정적인 제어를 할 수 있게 한 타이밍 슬리브 제어구조를 제공함에 그 고안의 목적이 있다.The present invention eliminates the problems described above in the control structure of the timing sleeve, and as a way to more stabilize the factors that may be the root cause of the occurrence of vibration, the center of the timing rod by the gear-shaped ring It is an object of the present invention to provide a timing sleeve control structure that enables stable control by shortening the moment arm by reducing the distance to the contact point of the timing sleeve.
도 1 은 본 고안의 구조가 구성된 연료분사장치의 개략도1 is a schematic view of a fuel injection device configured in accordance with the present invention
도 2 는 본 고안 도 1 의 A-A선 단면도2 is a cross-sectional view taken along line A-A of the present invention FIG.
도 3 은 본 고안 도 2 의 B부 설명도3 is an explanatory view of part B of the present invention FIG.
도 4 는 본 고안 타이밍 슬리브의 사시도4 is a perspective view of the present invention timing sleeve
도 5 는 본 고안의 제어 작동 설명도5 is a control operation explanatory diagram of the present invention
도 6 은 종래 제어구조의 설명도6 is an explanatory diagram of a conventional control structure;
〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
1 : 타이머 2 : 콘트롤박스1: Timer 2: Control Box
3 : 펌프 4 : 거버너3: pump 4: governor
5 : 펌프하우징 6 : 링5: pump housing 6: ring
6' : 링의 치차 7 : 타이밍 로드6 ': gear of ring 7: timing rod
8 : 플런저 블록 9 : 딜리버리 밸브 홀더8: plunger block 9: delivery valve holder
10 : 플런저 11 : 타이밍 슬리브10 plunger 11: timing sleeve
11' : 타이밍 슬리브의 홈 11" : 타이밍 슬리브의 스크류11 ': groove in the timing sleeve 11 ": screw in the timing sleeve
12 : 스프링 13 : 캠12: spring 13: cam
14 : 록크스크류 15 : 핀14: lock screw 15: pin
이하, 본 고안의 실시예를 첨부도면에 의하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail by the accompanying drawings.
도 2 는 본 고안 연료분사펌프의 전체 단면 설명도이다.Figure 2 is an overall cross-sectional view of the fuel injection pump of the present invention.
펌프하우징(5)의 내부에 타이밍 슬리브(11)가 장착된 플런저(10)가 스프링(12)으로 탄설되고, 그 하부에는 캠(13)이 축설되며, 상부에는 딜리버리밸브홀더(9)가 장착된 연료분사펌프에 있어서, 타이밍 로드(7)에 기어형상의 링(6)을 축삽하여 록크스크류(14)에 의해 고정하고, 그 링(6)의 치차(6') 부분이 타이밍 슬리브(11) 외주면의 스크류(11")에 치합되게 한다.A plunger 10 having a timing sleeve 11 mounted inside the pump housing 5 is piled up with a spring 12, a cam 13 is built in a lower portion thereof, and a delivery valve holder 9 is mounted in an upper portion thereof. In the conventional fuel injection pump, the gear-shaped ring 6 is inserted into the timing rod 7 and fixed by the lock screw 14, and the gear 6 'portion of the ring 6 is the timing sleeve 11. ) To the screw 11 "of the outer peripheral surface.
도면중 미실명부호 8은 플런저 블록이다.Unrealized reference numeral 8 in the figure is a plunger block.
이와 같은 본 고안의 작용을 설명한다.This will be described the operation of the present invention.
연료분사펌프가 작동할 시에는 엔진측에서 구동력을 받아 커플링을 통해 캠(13)을 구동하게 되고, 캠(13)으로부터 회전력을 수직으로 전달받아 플런저(10)가 상하로 운동하며 플런저(10)에 의해 압송된 고압의 연료가 딜리버리 밸브를 통하여 고압의 파이프를 통하여 엔진에 까지 압송된다.When the fuel injection pump operates, the cam 13 is driven through the coupling by receiving a driving force from the engine side, and the plunger 10 moves up and down while receiving the rotational force vertically from the cam 13. The high pressure fuel pumped by) is pumped to the engine through the high pressure pipe through the delivery valve.
이때 콘트롤박스(2)로부터 동력을 전달받아 회전 운동하는 타이밍 로드(7)가 그 주면에 축삽된 링(6)을 회전시키므로서 그 치차(6')에 치합된 타이밍 슬리브(11)가 상하로 승강된다.At this time, the timing sleeve 11 engaged with the gear 6 'is rotated up and down while the timing rod 7 which rotates by receiving power from the control box 2 rotates the ring 6 inserted in the main surface thereof. It is elevated.
이렇게 승하강되는 타이밍 슬리브(11)는 아래 방향으로 움직일 때 플런저(10)의 포트를 일찍 막음으로 분사시기가 빨라지며 반대로 위쪽으로 움직이면 분사시기가 느려진다.When the timing sleeve 11 is moved up and down in this way, the injection timing is accelerated by blocking the port of the plunger 10 early and the injection timing is slowed when moving upward.
이때 타이밍 로드(7)의 중심에서 타이밍 슬리브(11) 접촉점의 거리인 모멘트가 종래보다 작아 섭동 저항에 의한 떨림 현상이 줄어 좀 더 안정적인 제어가 된다.At this time, the moment, which is the distance between the timing sleeve 11 and the contact point at the center of the timing rod 7, is smaller than that of the related art, and thus, the shaking phenomenon due to the perturbation resistance is reduced, resulting in more stable control.
또, 링(6)의 치차(6')와 타이밍 슬리브(11)의 스크류(11")와 결합할 시에 록크스크류(4)를 풀어 링(6)을 공회전시켜 링(6)과 타이밍 슬리브(11)간의 상하 편차를 조정한 후 다시 조여주므로서 그 설치가 용이하다.In addition, when engaging the gear 6 'of the ring 6 and the screw 11 "of the timing sleeve 11, the lock screw 4 is released and the ring 6 is idling to rotate the ring 6 and the timing sleeve. It is easy to install by adjusting and retightening up and down deviation between (11).
이상과 같이 본 고안은 기어 형태를 갖는 링에 의해 타이밍 슬리브의 상하 승강운동을 제어되게 하므로서 엔진이 필요로 하는 시기에 정확한 분사를 할 수 있는 동시에 섭동 저항에 의한 떨림 현상이 줄어드므로 보다 안정적인 제어가 가능한 효과가 있다.As described above, the present invention allows the up and down movement of the timing sleeve to be controlled by a ring having a gear shape, so that accurate injection can be performed at the time required by the engine, and at the same time, the shaking phenomenon due to the perturbation resistance is reduced. Has the possible effect.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR2019970029556U KR200208877Y1 (en) | 1997-10-24 | 1997-10-24 | Timing sleeve control structure of fuel injection pump for diesel engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR2019970029556U KR200208877Y1 (en) | 1997-10-24 | 1997-10-24 | Timing sleeve control structure of fuel injection pump for diesel engine |
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KR19990016204U KR19990016204U (en) | 1999-05-25 |
KR200208877Y1 true KR200208877Y1 (en) | 2001-03-02 |
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KR2019970029556U KR200208877Y1 (en) | 1997-10-24 | 1997-10-24 | Timing sleeve control structure of fuel injection pump for diesel engine |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101501379B1 (en) * | 2013-10-21 | 2015-03-12 | 현대중공업 주식회사 | Injection timing control structure for fuel injection pump |
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CN110617167B (en) * | 2019-10-31 | 2024-07-23 | 中船动力研究院有限公司 | Fuel injection pump and engine |
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1997
- 1997-10-24 KR KR2019970029556U patent/KR200208877Y1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101501379B1 (en) * | 2013-10-21 | 2015-03-12 | 현대중공업 주식회사 | Injection timing control structure for fuel injection pump |
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