KR200179277Y1 - Governor structure of injection pump - Google Patents
Governor structure of injection pump Download PDFInfo
- Publication number
- KR200179277Y1 KR200179277Y1 KR2019960068781U KR19960068781U KR200179277Y1 KR 200179277 Y1 KR200179277 Y1 KR 200179277Y1 KR 2019960068781 U KR2019960068781 U KR 2019960068781U KR 19960068781 U KR19960068781 U KR 19960068781U KR 200179277 Y1 KR200179277 Y1 KR 200179277Y1
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- KR
- South Korea
- Prior art keywords
- governor
- injection pump
- diesel engine
- fuel
- injection
- 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
- 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
-
- 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
- F02M59/18—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps characterised by the pumping action being achieved through release of pre-compressed springs
Abstract
본 고안은 디젤 엔진의 연료 분사펌프에 관한 것으로서, 더욱 상세하게는 챠져 에어압력에 따라 분사되는 연료량을 조절하는 터보챠져 디젤엔진의 인젝션 펌프의 조속기에 있어서, 조속기의 스트로크 텐션조정을 용이하게 한 디젤엔진 인젝션 펌프의 조속기구조에 관한 것이다.The present invention relates to a fuel injection pump of a diesel engine, and more particularly, a diesel that facilitates stroke tension adjustment of a governor in a governor of an injection pump of a turbocharged diesel engine that adjusts the amount of fuel injected according to a charger air pressure. The governor structure of the engine injection pump.
본 고안에 따른 디젤엔진 인젝션 펌프의 조속기구조는, 조속기스프링(1), 프리텐셔너(2), 조정스크류를 포함하여 챠져 에어압력에 따라 분사되는 연료량을 조절하는 터보챠져 디젤엔진의 인젝션 펌프의 조속기에 있어서,The governor structure of the diesel engine injection pump according to the present invention, including the governor spring (1), the pretensioner (2), the adjustment screw to the governor of the injection pump of the turbocharged diesel engine for adjusting the amount of fuel injected in accordance with the charger air pressure In
상기 조정스크류(11)에 조속기의 스트로크 텐션조정을 용이하게 하기위한 조정스크류(10)를 조속기커버로 2중적으로 설치한 것을 특징으로 한다.The adjusting screw 11 is characterized in that the adjustment screw 10 for facilitating the adjustment of the stroke tension of the governor is provided as a double governor cover.
이에 따라 조속기커버를 탈거할 필요없이 스트로크와 스프링 프리텐셔너를 용이하게 조정할 수 있게 되며, 이에 따라 터보챠져 디젤엔진의 인젝션 펌프의 조속기 매칭을 용이하게 수행하는 것이 가능하게 되는 등의 효과가 있다.Accordingly, it is possible to easily adjust the stroke and the spring pretensioner without having to remove the governor cover, whereby it is possible to easily perform the governor matching of the injection pump of the turbocharged diesel engine.
Description
본 고안은 디젤 엔진의 연료 분사펌프에 관한 것으로서, 더욱 상세하게는 에어압력에 따라 분사되는 연료량을 조절하는 터보챠져 디젤엔진의 인젝션 펌프의 조속기에 있어서, 조속기의 스트로크 텐션조정을 용이하게 한 디젤엔진 인젝션 펌프의 조속기구조에 관한 것이다.The present invention relates to a fuel injection pump of a diesel engine, and more particularly, in a governor of an injection pump of a turbocharged diesel engine that adjusts the amount of fuel injected according to air pressure, a diesel engine that facilitates stroke tension adjustment of the governor. The governor structure of the injection pump.
디젤 엔진은 열에너지를 기계적인 에너지로 바꾸는 주요부분의 구조(실린더헤드, 실린더블록, 피스톤커넥팅 어셈블리, 크랭크축, 캠축, 밸브기구)에 있어서는 본질적으로 가솔린엔진과 다른점은 없다.Diesel engines are essentially indistinguishable from gasoline engines when it comes to the construction of major parts (cylinder heads, cylinder blocks, piston connecting assemblies, crankshafts, camshafts, valve mechanisms) that convert thermal energy into mechanical energy.
다만 연료의 연소과정에 있어서 가솔린 엔진은 공기와 연료의 혼합기를 압축한 후 전기적 불꽃으로 점화하는데 비하여, 디젤 엔진은 공기만을 흡입하고 높은 압축비로 압축하여 그 온도가 500-600℃ 이상되게 한 후 연료를 분사펌프에서 가압하여 분사노즐로 실린더내에 분사시켜 자기착화(압축착화)시키는 점이 다르다.In the combustion process of fuel, however, gasoline engines compress air and fuel mixtures and ignite them with electrical sparks, whereas diesel engines only suck air and compress it at a high compression ratio to make the temperature above 500-600 ℃. Is pressurized by the injection pump and injected into the cylinder by the injection nozzle, thereby causing self ignition (compression ignition).
따라서 디젤 엔진은 전기점화장치(배전기, 점화코일, 고압케이블, 점화플러그 등)를 필요로 하지 않고, 분사펌프와 분사노즐로 구성된 연료분사장치를 필요로 한다.Therefore, diesel engines do not require electric ignition devices (distributors, ignition coils, high voltage cables, spark plugs, etc.) but require a fuel injection device consisting of an injection pump and injection nozzles.
디젤엔진의 연료 분사장치는, 연료탱크, 연료공급펌프, 연료여과기, 분사펌프, 분사파이프, 분사노즐 등으로 구성되어 있다.The fuel injection device of a diesel engine is comprised of a fuel tank, a fuel supply pump, a fuel filter, an injection pump, an injection pipe, an injection nozzle, etc.
연료공급펌프는 연료를 연료탱크로부터 펌핑하여 여과기를 거쳐 분사펌프의 저압측에 공급하는 기능을 한다.The fuel supply pump functions to pump fuel from the fuel tank and to supply the low pressure side of the injection pump through a filter.
연료여과기는 연료 중에 포함된 불순물과 물을 분리하여 분사펌프와 분사노즐로부터 격리시키는 역할을 한다.The fuel filter separates impurities and water contained in the fuel and isolates them from the injection pump and the injection nozzle.
본 고안과 관련된 상기 분사펌프는 기관의 부하와 속도에 알맞도록 계량하여 크랭크각을 기준하여 알맞는 시기에 연소사이클에 적합한 분사율을 분사노즐에 공급하는 역할을 한다.The injection pump according to the present invention serves to supply the injection nozzle with a suitable injection rate for the combustion cycle at a suitable time based on the crank angle by measuring to suit the load and speed of the engine.
분사펌프 본체는 하우징, 캠축, 롤러태핏, 펌프 일리먼트, 딜리버리밸브, 컨트롤기구 등으로 구성되어 있다.The injection pump main body is composed of a housing, a camshaft, a roller tappet, a pump element, a delivery valve, a control mechanism, and the like.
디리버리밸브 어셈블리는 플런저배럴 상부에 설치되어 있다.The delivery valve assembly is mounted on top of the plunger barrel.
따라서 펌프플런저에 의해 계량,송출된 연료가 분사파이프를 거쳐 분사노즐에 공급되기 위해서는 먼저 딜리버리밸브를 통과하여야 한다.Therefore, the fuel metered and delivered by the pump plunger must first pass through the delivery valve in order to be supplied to the injection nozzle through the injection pipe.
딜리버리밸브는 분사종료시 분사펌프 엘리먼트의 고압실과 분사파이프 사이를 차단하고, 이어서 분사파이프내 연료압력을 저하시킨다. 동시에 분사파이프의 잔압을 유지하는 기능을 한다.The delivery valve shuts off between the high pressure chamber of the injection pump element and the injection pipe at the end of the injection, and subsequently lowers the fuel pressure in the injection pipe. At the same time, it maintains the residual pressure of the injection pipe.
고지대에서는 저지대에 비해 공기밀도가 낮기 때문에 대기압이 현저히 낮다. 대기압이 낮으면 결과적으로 충진율이 저하되므로 분사량을 감소시켜야 한다.At high altitudes, air pressure is significantly lower than at low altitudes, resulting in significantly lower atmospheric pressures. At low atmospheric pressures, the filling rate is consequently lowered and the injection volume must be reduced.
조속기는 대기압 대신에 절대과급압력을 이용하여 전부하 분사량을 조정한다,The governor uses absolute supercharge pressure instead of atmospheric pressure to adjust the full load injection volume.
과급기관의 충진율은 과급압력의 영향을 받는다.The filling rate of the turbocharger is affected by the turbocharge.
그리고 과급압력은 대기압의 영향을 크게 받는다.The boost pressure is greatly affected by atmospheric pressure.
즉, 대기압과 과급압력에 의해 과급공기통로의 절대압력이 결정된다.That is, the absolute pressure of the boost air passage is determined by the atmospheric pressure and the boost pressure.
조속기는 과급공기통로의 절대압력이 일정수준 이하로 낮아지면 컨트롤롯드를 분사량이 감소하는 방향으로 밀도록 되어 있다.The governor is designed to push the control rod in the direction of decreasing injection volume when the absolute pressure in the supercharged air passage drops below a certain level.
그런데 종래의 조속기는 조속기스프링과 스프링 프리 텐셔너를 변경하기 위해서는 조속기커버를 탈거해야 하는 폐단이 있었다.However, the conventional governor has a closed end to remove the governor cover in order to change the governor spring and the spring-tensioner.
본 고안은 상기와 같은 종래의 문제점을 해결하기 위하여 안출된 것으로서, 본 고안의 목적은 에어압력에 따라 분사되는 연료량을 조절하는 터보챠져 디젤엔진의 인젝션 펌프의 조속기에 있어서, 조속기의 스트로크 텐션조정을 용이하게 한 디젤엔진 인젝션 펌프의 조속기구조를 제공하는데 있다.The present invention has been made to solve the conventional problems as described above, the object of the present invention is to adjust the stroke tension of the governor in the governor of the injection pump of the turbocharged diesel engine to adjust the amount of fuel injected in accordance with the air pressure It is to provide a governor structure of a diesel engine injection pump.
상기 목적을 달성하기 위한 본 고안의 디젤엔진 인젝션 펌프의 조속기구조는, 조속기스프링 프리텐셔너 조정스크류에 조속기커버로 설치되는 이중 스크류를 설치하여 조속기커버를 탈거할 필요없이 스트로크와 스프링 프리텐셔너를 조정할 수 있도록 한 것을 특징으로 한다.The governor structure of the diesel engine injection pump of the present invention for achieving the above object is to install a double screw installed in the governor spring pretensioner adjusting screw as the governor cover so that the stroke and the spring pretensioner can be adjusted without having to remove the governor cover. It is characterized by.
상기 특징에 의해 터보챠져 디젤엔진의 인젝션 펌프의 조속기 매칭을 용이하게 수행하게 되는 것이 가능하게 된다.This feature makes it possible to easily perform the governor matching of the injection pump of the turbocharged diesel engine.
도 1은 종래의 조속기구조를 나타낸 요부 단면도,1 is a cross-sectional view of a main part showing a conventional governor structure;
도 2은 본 고안에 따른 조속기구조를 나타낸 요부 단면도이다.2 is a sectional view showing main parts of a governor structure according to the present invention.
< 도면의 주요 부분에 대한 부호의 설명><Description of the reference numerals for the main parts of the drawings>
1: 조속기스프링 2: 조속기프리텐셔너1: governor spring 2: governor pretensioner
3,10,11: 조정스크류3,10,11: adjusting screw
이하 첨부된 도면을 참고하여 본 고안의 실시예를 상술하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 종래의 조속기구조를 나타낸 요부 단면도이고, 도 2는 본 고안에 따른 조속기구조를 나타낸 요부 단면도이다.1 is a cross-sectional view of a main part of a conventional governor structure, and FIG. 2 is a cross-sectional view of a main part of a governor structure according to the present invention.
도시된 바와 같이 본 고안의 본 고안의 디젤엔진 인젝션 펌프의 조속기구조는, 조속기스프링(1), 프리텐셔너(2), 조정스크류를 포함하여 에어압력에 따라 분사되는 연료량을 조절하는 터보챠져 디젤엔진의 인젝션 펌프의 조속기에 있어서, 상기 조정스크류(11)에 조속기의 스트로크 텐션조정을 용이하게 하기위한 조정스크류(10)를 조속기커버로 2중적으로 설치한다.As shown, the governor structure of the diesel engine injection pump according to the present invention includes a governor spring (1), a pretensioner (2), and an adjustment screw to control the amount of fuel injected according to the air pressure. In the governing machine of the injection pump, the adjusting screw 11 is provided with a governor cover twice in order to facilitate the adjustment of the stroke tension of the governor.
이러한 구조에 의해 별도로 설치한 조정스크류(10)가 조속기커버의 외부로 노출되어져 상기 조속기커버를 탈거할 필요없이 조정스크류(10)의 조정만으로 내부의 스트로크와 스프링 프리텐셔너(2)의 조정이 가능하게 된다.With this structure, the adjustment screw 10 separately installed is exposed to the outside of the governor cover so that the stroke and the spring pretensioner 2 can be adjusted by adjusting the adjustment screw 10 only without removing the governor cover. do.
즉 조속기커버를 탈거할 필요없게 되어 번거러움이 없이 조속기스트로크와 조속기스프링 프리텐셔너의 조정하는 것을 용이하게 수행하게 된다.In other words, it is not necessary to remove the governor cover, thereby making it easy to adjust the governor stroke and the governor spring pretensioner without any hassle.
이상에서 설명한 바와 같이 본 고안의 디젤엔진 인젝션 펌프의 조속기구조는, 조속기스프링 프리텐셔너 조정스크류에 조속기커버로 설치되는 이중 스크류를 설치한 구조에 의해, 조속기커버를 탈거할 필요없이 스트로크와 스프링 프리텐셔너를 용이하게 조정할 수 있게 되며, 이에 따라 터보챠져 디젤엔진의 인젝션 펌프의 조속기 매칭을 용이하게 수행하는 것이 가능하게 되는 등의 효과가 있다.As described above, the governor structure of the diesel engine injection pump according to the present invention has a double screw installed in the governor spring pretensioner adjusting screw as a governor cover, so that the stroke and the spring pretensioner can be easily removed without removing the governor cover. It can be adjusted, so that it is possible to easily perform the governor matching of the injection pump of the turbocharged diesel engine, and the like.
본 고안은 기재된 구체예에 대해서만 상세히 설명되었지만 본 고안의 사상과 범위내에서 변형이나 변경할 수 있음은 본 고안이 속하는 분야의 당업자에게는 명백한 것이며, 그러한 변형이나 변경은 첨부한 실용신안등록 청구범위에 속한다 할 것이다.Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art to which the present invention pertains, but it can be modified or changed within the spirit and scope of the present invention. something to do.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960068781U KR200179277Y1 (en) | 1996-12-31 | 1996-12-31 | Governor structure of injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960068781U KR200179277Y1 (en) | 1996-12-31 | 1996-12-31 | Governor structure of injection pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980055554U KR19980055554U (en) | 1998-10-07 |
| KR200179277Y1 true KR200179277Y1 (en) | 2000-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960068781U KR200179277Y1 (en) | 1996-12-31 | 1996-12-31 | Governor structure of injection pump |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200179277Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100444855B1 (en) * | 2001-09-26 | 2004-08-18 | 현대자동차주식회사 | Adjusting screw mounting structure and pre-stroke adjusting method of electronic injector |
-
1996
- 1996-12-31 KR KR2019960068781U patent/KR200179277Y1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100444855B1 (en) * | 2001-09-26 | 2004-08-18 | 현대자동차주식회사 | Adjusting screw mounting structure and pre-stroke adjusting method of electronic injector |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980055554U (en) | 1998-10-07 |
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