KR100208754B1 - Indirect high-pressure pump for directly injecting gasoline fuel to an intake port - Google Patents
Indirect high-pressure pump for directly injecting gasoline fuel to an intake port Download PDFInfo
- Publication number
- KR100208754B1 KR100208754B1 KR1019960053509A KR19960053509A KR100208754B1 KR 100208754 B1 KR100208754 B1 KR 100208754B1 KR 1019960053509 A KR1019960053509 A KR 1019960053509A KR 19960053509 A KR19960053509 A KR 19960053509A KR 100208754 B1 KR100208754 B1 KR 100208754B1
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- South Korea
- Prior art keywords
- cylinder
- pump
- fuel
- gasoline fuel
- chamber
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/025—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by a single piston
-
- 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
- F02M37/04—Feeding by means of driven pumps
- F02M37/046—Arrangements for driving diaphragm-type pumps
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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)
- Reciprocating Pumps (AREA)
Abstract
본 발명의 목적은 연료의 압축분사 작동을 위한 실린더와 플런저의 마모를 저감하고 엔진의 흡기력을 높이기 위하여 흡기포트내에 가솔린 연료를 직접 분사하는 간접식 고압 펌프를 제공하는데 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide an indirect high pressure pump that directly injects gasoline fuel into an intake port to reduce the wear of the cylinder and plunger for the compression injection operation of the fuel and increase the intake force of the engine.
상기한 목적을 달성하기 위하여 본 발명은 실린더(1)와; 상기 실린더(1)를 압력실(5)과 펌프실(4)로 구획하는 다이어프램(3)과; 상기 펌프실(4)로 가솔린 연료를 유입시키는 인렛포트(6)와; 상기 다이어프램(3)의 변형으로 상기 펌프실(4)을 압축시에 연료를 분사하는 아웃렛포트(7)와; 상기 압력실(5)의 공기를 압축하는 플런저(2)와; 를 포함하여 구성되어 있음을 그 요지로 하고 있다.The present invention and the cylinder (1) to achieve the above object; A diaphragm (3) for dividing the cylinder (1) into a pressure chamber (5) and a pump chamber (4); An inlet port 6 for introducing gasoline fuel into the pump chamber 4; An outlet port 7 for injecting fuel during compression of the pump chamber 4 by deformation of the diaphragm 3; A plunger 2 for compressing air in the pressure chamber 5; Its main point is that it is configured to include.
Description
본 발명은 흡기포트 내에 직접 분사하는 방식의 가솔린 연료용 간접식 고압펌프에 관한 것이다.The present invention relates to an indirect high-pressure pump for gasoline fuel by direct injection into the intake port.
통상 인젝션 펌프는 제2도에 도시하는 것과 같이 플런저(20)의 실린더(21) 내에서의 왕복 구동에 의해 연료를 압축하여 딜리버리 밸브(22)와 노즐을 통해 분사하게 된다.In general, the injection pump compresses fuel by reciprocating driving in the cylinder 21 of the plunger 20 and injects it through the delivery valve 22 and the nozzle as shown in FIG.
그러나, 디이젤 기관의 분사펌프와 달리 가솔린 엔진의 연료분사 펌프는 윤활성을 기대할 수 없어 실린더(21)와 플런저(20)가 쉽게 마모되는 단점이 있게 된다.However, unlike the injection pump of the diesel engine, the fuel injection pump of the gasoline engine cannot expect lubricity, so that the cylinder 21 and the plunger 20 are easily worn.
이에 본 발명은 상기한 문제점을 감안하여 제안된 것으로서 그의 목적으로 하는 바는 연료의 압축분사 작동을 위한 실린더와 플런저의 마모를 저감하고 엔진의 흡기력을 높이기 위하여 흡기포트내에 가솔린 연료를 직접 분사하는 간접식 고압펌프를 제공하는데 있다.Therefore, the present invention has been proposed in view of the above problems, and its object is to directly inject gasoline fuel into the intake port to reduce the wear of the cylinder and plunger for the compression injection operation of the fuel and to increase the intake force of the engine. An indirect high pressure pump is provided.
상기한 목적을 달성하기 위하여 본 발명은The present invention to achieve the above object
일측에는 가솔린 연료가 유입되기 위한 인렛포트가 형성되고, 타측에는 연료가 분사되기 위한 아웃렛 포트가 형성된 실린더를 포함하는 펌프에 있어서,In one side, an inlet port for gasoline fuel is introduced is formed, the other side of the pump comprising a cylinder formed with an outlet port for injection of fuel,
상기 실린더의 중간부분에 설치되어 실린더를 압력실과 펌프실로 구획하며, 외력에 의해 변형되어 펌프실 내에 존재하는 연료가 아웃렛포트를 통해 분사되도록 하는 다이어프램과;A diaphragm installed at an intermediate portion of the cylinder to divide the cylinder into a pressure chamber and a pump chamber, and to be deformed by an external force so that fuel existing in the pump chamber is injected through the outlet port;
상기 실린더의 압력실측에 길게 형성되며, 그 일단에는 공기가 유출입되기 위한 구멍이 천공되어 있는 원통부와;A cylindrical portion formed on the pressure chamber side of the cylinder and having one end perforated with an air flow in and out of the cylinder;
압축스프링에 의해 탄지된 상태로 그 일단이 원통부의 내부에 삽입되며, 전후진하여 압력실 내의 공기를 압축시켜 다이어프램이 변형되도록 하는 외력을 간접적으로 가하는 플런저;를 포함하여 구성되어 있음을 그 요지로 하고 있다.One end is inserted into the cylinder portion in a state supported by the compression spring, and the plunger for indirectly exerting an external force to compress the air in the pressure chamber to deform the diaphragm by moving forward and backward. Doing.
제1도는 본 발명에 의한 간접식 고압펌프의 일실시예를 나타내는 도면.1 is a view showing an embodiment of an indirect high pressure pump according to the present invention.
제2도는 종래기술.2 is a prior art.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 실린더 2 : 플런저1: cylinder 2: plunger
3 : 다이어프램 4 : 펌프실3: diaphragm 4: pump chamber
5 : 압력실 6 : 인렛포트5: Pressure chamber 6: Inlet port
7 : 아웃렛포트 8 : 압축스프링7: Outlet Port 8: Compression Spring
이하 본 발명의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.
제1도는 본 발명에 의한 간접식 고압펌프의 일 실시예를 나타내는 도면으로 본 발명의 간접식 고압펌프는 크게 실린더(1)와 플런저(2) 및 다이어프램(3)으로 구성된다.1 is a view showing an embodiment of an indirect high pressure pump according to the present invention. The indirect high pressure pump of the present invention is mainly composed of a cylinder 1, a plunger 2, and a diaphragm 3.
상기 실린더(1)는 다이어프램(3)에 의해 펌프실(4)과 압력실(5)로 구획되며 펌프실(4)의 일측에는 가솔린 연료가 유입되는 인렛포트(6)가 형성되고 그의 타측에는 연료를 분사하는 아웃렛포트(7)가 형성되어 있다.The cylinder 1 is divided into a pump chamber 4 and a pressure chamber 5 by a diaphragm 3, and an inlet port 6 through which gasoline fuel is introduced is formed at one side of the pump chamber 4, and the fuel is provided at the other side thereof. The outlet port 7 which injects is formed.
상기 실린더(1)의 압력실(5) 측에는 원통부(1a)가 길게 형성되어 있는데, 이 원통부(1a)에는 플런저(2)가 왕복이동 가능하게 마련되어 있으며 상기 플런저(2)는 압축스프링(8)에 의해 바깥측으로 탄발되도록 지지되고 있다.A cylindrical portion 1a is formed on the pressure chamber 5 side of the cylinder 1, and the cylindrical portion 1a is provided with a plunger 2 to reciprocate, and the plunger 2 has a compression spring ( 8) is supported to be shot outwards.
그리고, 상기 원통부(1a)에는 공기가 유출입되기 위한 구멍(9)이 천공되어 있으며, 상기 원통부(1a)는 하우징(10) 내에 수용되어 있다.In addition, a hole 9 through which air flows in and out is drilled in the cylindrical portion 1a, and the cylindrical portion 1a is accommodated in the housing 10.
이에따라 전원이 공급되어 플런저(2)가 스프링을 압축하면서 전진하면 구멍(9)을 차단하면서 압력실(5) 내의 공기를 압축하게 되며 다이어프램(3)은 펌프실(4) 측으로 팽출된다.Accordingly, when power is supplied and the plunger 2 moves forward while compressing the spring, the air 9 in the pressure chamber 5 is compressed while blocking the hole 9, and the diaphragm 3 expands toward the pump chamber 4 side.
다이어프램(3)이 팽출되면 펌프실(4)의 용적이 감소되므로 펌프실(4) 내의 가솔린연료는 아웃렛포트(7)를 통해 고압으로 분출되어지게 된다.When the diaphragm 3 expands, the volume of the pump chamber 4 is reduced, so that the gasoline fuel in the pump chamber 4 is ejected at a high pressure through the outlet port 7.
전원공급이 끊기면 플런저(2)는 압축스프링(8)의 탄발력에 의해 후퇴하게 되며 압력실(5) 측으로 팽출되므로 펌프실(4)에 형성되는 부압에 의해 인렛포트(6)를 통해 가솔린 연료가 유입되어지게 되며 다시 전원이 공급되어 플런저(2)가 전진하면 앞서 설명한 것과 같이 압력실(5) 내의 고압으로 압축되는 공기압에 의하여 간접적으로 작용하는 힘에 의하여 펌프실(4) 내의 연료가 분사되어지게 되는 것이다.When the power supply is cut off, the plunger 2 is retracted by the elastic force of the compression spring 8 and swells toward the pressure chamber 5 so that gasoline fuel is injected through the inlet port 6 by the negative pressure formed in the pump chamber 4. When the plunger 2 moves forward, the fuel in the pump chamber 4 is injected by the force acting indirectly by the air pressure compressed to the high pressure in the pressure chamber 5 as described above. Will be.
여기서 플런저(2)의 작동방식으로 전기적 솔레노이드 방식을 설명하였으나 종래의 예인 제2도에서와 같이 페이스탬과 롤러 및 캠디스크를 사용하는 기계적 방식이어도 관계없음을 밝힌다.Herein, the electrical solenoid method has been described as an operation method of the plunger 2, but as shown in FIG. 2, which is a conventional example, a mechanical method using a face stamp, a roller, and a cam disk is disclosed.
이상과 같은 본 발명의 간접식 고압펌프는 플런저의 운동으로 압력실의 공기를 압축하고 그 압력에 의해 다이어프램이 변형되어 펌프실 내를 압축하여 연료를 고압으로 직접 흡기포트내에 분사하게 되는 간접방식을 채택하므로써 가솔린 엔진의 흡기력이 상승하여 엔진의 성능을 향상하고 펌프의 실린더와 플런저 마모를 감소시키게 되는 효과가 있게 된다.As described above, the indirect high pressure pump of the present invention adopts an indirect method in which the air in the pressure chamber is compressed by the movement of the plunger and the diaphragm is deformed by the pressure to compress the pump chamber to inject fuel directly into the intake port at high pressure. This increases the intake power of the gasoline engine, thereby improving the engine performance and reducing the wear of the cylinder and plunger of the pump.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960053509A KR100208754B1 (en) | 1996-11-12 | 1996-11-12 | Indirect high-pressure pump for directly injecting gasoline fuel to an intake port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960053509A KR100208754B1 (en) | 1996-11-12 | 1996-11-12 | Indirect high-pressure pump for directly injecting gasoline fuel to an intake port |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980035231A KR19980035231A (en) | 1998-08-05 |
| KR100208754B1 true KR100208754B1 (en) | 1999-07-15 |
Family
ID=19481588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960053509A KR100208754B1 (en) | 1996-11-12 | 1996-11-12 | Indirect high-pressure pump for directly injecting gasoline fuel to an intake port |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100208754B1 (en) |
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1996
- 1996-11-12 KR KR1019960053509A patent/KR100208754B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR19980035231A (en) | 1998-08-05 |
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