KR0134458Y1 - Operating structure of external gear type oil pump - Google Patents
Operating structure of external gear type oil pump Download PDFInfo
- Publication number
- KR0134458Y1 KR0134458Y1 KR2019920027615U KR920027615U KR0134458Y1 KR 0134458 Y1 KR0134458 Y1 KR 0134458Y1 KR 2019920027615 U KR2019920027615 U KR 2019920027615U KR 920027615 U KR920027615 U KR 920027615U KR 0134458 Y1 KR0134458 Y1 KR 0134458Y1
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- KR
- South Korea
- Prior art keywords
- gear
- pump
- oil
- bearing cap
- idle
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/14—Bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
본 고안은 베어링캡에 아이들기어를 설치한 외접기어식 오일 펌프의 구동구조에 관한 것으로, 엔진의 실린더블럭(1)에 구동기어(2)와 이에 맞물린 아이들기어(3)를 갖춘 베어링캡(4)이 취부되고, 이 베어링캡(4)에 상기 아이들기어(30)와 맞물리면서 내측에 외접기어(7)가 설치된 피동기어(5)를 갖춘 펌프하우징이 공체된 구조로 이루어진 오일펌프에 있어서, 상기 펌프하우징(12)에 펌프기어(8)와 동축으로 연결되어 상기 아이들기어(3)와 연동되도록 피동기어(5)가 외장되는 한편, 오일입구(10)와 오일출구(11)가 각각 펌프하우징(12)의 측부에 형성된 구조로 되어 펌프를 소형화시킬 수 있도록 되어 있다.The present invention relates to a drive structure of an external gear oil pump in which an idle gear is installed in a bearing cap. A bearing cap (4) having a drive gear (2) and an idle gear (3) engaged therein in a cylinder block (1) of an engine is provided. In the oil pump having a structure in which a pump housing having a driven gear (5) having an external gear (7) installed therein is engaged with the bearing cap (4) and engaged with the idle gear (30). The driven gear 5 is externally connected to the pump housing 12 so as to be coaxially connected with the pump gear 8 so as to interlock with the idle gear 3, while the oil inlet 10 and the oil outlet 11 are respectively pumped. The structure formed in the side part of (12) is made to miniaturize a pump.
Description
제1도는 본 고안에 따른 개략적인 단면도이고,1 is a schematic cross-sectional view according to the present invention,
제2도 (a),(b)도는 각각 종래기술에 따른 개략적인 단면도이다.2 (a) and 2 (b) are schematic cross-sectional views according to the prior art, respectively.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 실린더블럭 2 : 구동기어1: Cylinder block 2: Drive gear
3 : 아이들기어 4 : 베어링캡3: idler gear 4: bearing cap
5 : 피동기어 6,9,12 : 펌프하우징5: driven gear 6,9,12: pump housing
7 : 로우터 8 : 펌프기어7: rotor 8: pump gear
10 : 오일입구 11 : 오일출구10: oil inlet 11: oil outlet
13 : 제 1 기어 14 : 제 2 기어13: first gear 14: second gear
본 고안은 차량엔진의 각 윤활부에 오일을 공급시키는 오일펌프에 관한 것으로, 특히 오일펌프를 소형화하여 설치공간을 최소화시킴으로써 소형엔젠에 장착시킬 수 있도록 베어링캡에 아이들기어를 설치한 외접기어식 오일펌프의 구동구조에 관한 것이다.The present invention relates to an oil pump for supplying oil to each lubrication part of a vehicle engine. In particular, an external gear type with an idle gear installed in a bearing cap to be mounted on a small engine by minimizing an installation space by minimizing an oil pump. The driving structure of the oil pump.
차량용 엔진에 필요한 윤활오일을 압송시키는 오일펌프는 보통 크랭크축에 의해 구동되면서 오일팬에 저장된 오일을 흡입가압시켜 엔진의 각 습동부위로 공급하는 장치인바, 이러한 오일펌프는 크게 제2도(a),(b)에 각각 도시된 로우터식 펌프와 기어식 펌프로 구분할 수 있다.The oil pump for pumping the lubricating oil required for the engine of the vehicle is a device that is driven by the crankshaft and suction-pressurized oil stored in the oil pan to supply to each sliding part of the engine. It can be divided into a rotor pump and a gear pump shown in (b), respectively.
먼저 로우터식펌프는 제2도(a)에 도시된 것과 같이, 실린더블럭(1)에 구동기어(2)와 이에 맞물린 아이들기어(3)를 갖춘 베어링캡(4)이 취부되고, (혹은 아이들기없이 오일펌프를 직접구동)이 베어링캡(4)의 양쪽으로 형성된 보울트구멍(도시되지 않음)을 통해 상기 아이들기어(3)에 맞물린 피동기어(5)가 설치된 펌프하우징(6)이 취부됨과 더불어, 상기 피동기어(5)의 내측에 로우터(7)가 중심이 편심된 상태로 설치된 구조로 되어 있어, 상기 구동기어(2)의 회전력이 아이들기어(3)를 매개로 피동기어(5)로 전달되면, 이 피동기어(5)에 설치된 로우터(7)가 편심된 상태로 회전되면서 오일을 흡입시키도록 되어 있었다.First, the rotor pump is mounted with a bearing cap 4 having a drive gear 2 and an idle gear 3 engaged therewith in the cylinder block 1, as shown in FIG. The pump housing 6 is installed with the driven gear 5 engaged with the idle gear 3 through bolt holes (not shown) formed at both sides of the bearing cap 4 with the oil pump directly driven. In addition, the rotor 7 is formed inside the driven gear 5 with the center eccentric, so that the rotational force of the drive gear 2 is driven through the idle gear 3. When it is transmitted to, the rotor 7 installed in the driven gear 5 is rotated in an eccentric state to suck the oil.
그러나 이러한 구조로 된 로우터식 오일펌프는, 피동기어(5)의 내측에 로우터(7)를 설치시켜야 하며 로우터 측이 내려와야 함으로 축간거리가 멀어져 피동기어(5)의 외경이 상대적으로 커지게 되어 대형 오일팬에만 취부시킬수 있어 중대형 엔진에만 적용시킬 수 있고, 또, 구조적으로 오일입출구를 펌프하우징 뒷쪽으로 설치하여야 함에 따라 크랭크축과의 간섭문제가 발생되는 등의 단점이 있다.However, in the rotor type oil pump having such a structure, the rotor 7 should be installed inside the driven gear 5 and the rotor side should be lowered so that the distance between the shafts is farther and the outer diameter of the driven gear 5 becomes relatively large. It can be mounted only on a large oil pan, so it can be applied only to medium and large engines, and also has a disadvantage in that an interference problem with the crankshaft occurs because the oil inlet and outlet are structurally installed to the rear of the pump housing.
한편 기어식펌프는 제2도(b)에 도시된 것과같은 구조로 되어 있는 바, 실린더블럭(1)에 구동기어(2)가 취부되고 베어링캡(4)의 양쪽으로 펌프기어(8)가 내장된 펌프하우징(9)이 부착됨과 더불어 상기 펌프기어(8)에는 동축으로 피동기어(5)가 설치되어 상기 구동기어(2)에 맞물린 구조로 되어 있다.On the other hand, the gear pump has a structure as shown in FIG. 2 (b), in which the drive gear 2 is mounted on the cylinder block 1, and the pump gear 8 is installed on both sides of the bearing cap 4. A built-in pump housing 9 is attached to the pump gear 8, and a driven gear 5 is installed coaxially with the driving gear 2.
따라서 상기 구동기어(2)의 회전력이 직접 피동기어(5)로 전달되게 되어, 이 피동 기어(5)를 매개로 펌프기어(8)가 회전되며 오일을 흡입시키도록 되어 있다.Therefore, the rotational force of the drive gear 2 is transmitted directly to the driven gear 5, so that the pump gear 8 is rotated through the driven gear 5 to suck oil.
그러나 이러한 기어식펌프 역시, 상기 피동기어(5)가 상대적으로 커지게 되어 소형엔진에는 적용시킬 수 없다는 결점이 있었다.However, such a gear pump also has the drawback that the driven gear 5 becomes relatively large and cannot be applied to a small engine.
이에 본 고안은 상기와 같은 결점을 해소하기 위해 안출된 것으로, 베어링캡에 아이들기어가 설치된 오일펌프피동기어를 소형화하여 설치공간을 최소화시킴으로서 소형엔진에 장착할 수 있도록 된 외접기어식 오일펄프를 제공함에 그 목적이 있다.The present invention has been devised to solve the above-mentioned drawbacks, and provides an external gear-type oil pulp that can be installed in a small engine by minimizing the installation space by miniaturizing the oil pump driven gear with the idle gear installed in the bearing cap. Has its purpose.
상기와 같은 목적을 달성하기 위한 본 고안은 엔진의 실린더 블럭에 구동기어와 이에 맞물린 아이들기어를 갖춘 베어링캡이 취부되고, 이 베어링캡에 상기 아이들기어와 맞물리면서 내측에 외접기어가 설치된 피동기어를 갖춘 펌프하우징의 공체된 구조로 이루어진 오일펌프에 있어서, 상기 펌프하우징에 펌프기어와 외접되면서 상기 아이들기어와 연동되도록 피동기어가 외장되는 한편, 오일입구와 오일출구가 각각 펌프하우징의 측부에 형성된 구조로 되어있다.The present invention for achieving the above object is provided with a bearing cap having a drive gear and an idle gear meshed to the cylinder block of the engine, the bearing cap is provided with a driven gear having an external gear installed therein while engaging the idle gear. In the oil pump having a common structure of the pump housing, the pump housing is external to the pump gear and the driven gear is externally interlocked with the idle gear, while the oil inlet and the oil outlet are formed on the side of the pump housing, respectively It is.
이하 본 고안을 첨부 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
제1도는 본 고안 외접기어식 오일 펌프의 단면도를 나타낸 것으로 제2도(a),(b)와 동일부위에는 동일참조부호가 도시되어 있는 바, 엔진의 실린더블럭(1)하부에 크랭크축(도시되지 않음)에 의해 회전되는 구동기어(2)와 이 구동기어(2)에 맞물린 아이들이어(3)가 설치된 베어링캡(4)이 소정의 체결수단을 매개로 취부됨과 더불어, 이 베어링캡(4)의 양쪽에 형성된 도시되지 않은 보울트구멍을 통해 피동기어(5)와 이에 맞물린 펌프기어(8)를 갖추면서 측면에 오일입부(10)와 오일출구(11)가 각각 설치된 펌프하우징(12)이 취부된 구조로 되어 있다.1 is a cross-sectional view of the external gear oil pump according to the present invention, and the same reference numerals are shown in the same parts as FIGS. 2 (a) and (b), and the crankshaft ( The drive cap 2 rotated by the not shown) and the bearing cap 4 provided with the idler 3 engaged with the drive gear 2 are mounted via a predetermined fastening means, and the bearing cap ( A pump housing 12 having an oil inlet 10 and an oil outlet 11 on each side, having a driven gear 5 and a pump gear 8 engaged therethrough through a bolt hole (not shown) formed at both sides of 4). This structure is attached.
그리고 상기 피동기어(5)는 제 1 기어(13)와 제 2 기어(14)로 이루어지면서 동일축상에 설치되어 상기 아이들기어(3)를 매개로 상호 연동되게 되는 바, 즉 상기 제 1 기어(13)는 아이들기어(3)에 맞물리고 제 2기어(14)는 펌프기어(8)에 맞물린 상태로 내장되어 있다.The driven gear 5 is formed of the first gear 13 and the second gear 14 and is installed on the same axis so that the driven gear 5 is interlocked with each other through the idle gear 3, that is, the first gear ( 13 is engaged with the idle gear 3 and the second gear 14 is embedded in the engaged state with the pump gear 8.
따라서 엔진의 크랭크축에 의해 회전되는 구동기어(2)와 맞물린 아이들기어(3)는 구동기어(2)로부터 전달받은 회전력으로 피동기어(5)의 제 1기어(13)를 구동시키고, 이에 따라 제 1기어(13)와 동일축상에 장착된 제 2 기어(14)가 상기 제 1 기어(13)와 연동되면서 펌프기어(8)를 구동시키게 됨에 따라 오일팬(도시되지 않음)에 저장된 오일은 오일입구(10)로 흡입되어 오일출구(11)와 연결된 오일파이프(도시되지 않음)를 통해 엔진의 각 습동부로 공급되게 된다.Therefore, the idle gear 3 meshed with the drive gear 2 rotated by the crankshaft of the engine drives the first gear 13 of the driven gear 5 with the rotational force transmitted from the drive gear 2, thereby. As the second gear 14 mounted on the same axis as the first gear 13 drives the pump gear 8 while interlocking with the first gear 13, the oil stored in the oil pan (not shown) It is sucked into the oil inlet 10 and is supplied to each sliding part of the engine through an oil pipe (not shown) connected to the oil outlet 11.
또한, 상기와 같은 구조로 이루어진 오일펌프는 오일입구(10) 및 오일출구(11)를 펌프하우징(12)의 측면에 각각 형성시키게 됨에 따라, 오일펌프가 취부되는 엔진의 크랭크샤프트와 간섭이 발생되지 않게 되어 오일팬의 설계작업을 간단하게 할 수 있을 뿐 아니라 설계범위의 향상도 도모되게 된다.In addition, the oil pump having the structure as described above is to form the oil inlet 10 and the oil outlet 11 on the side of the pump housing 12, respectively, the interference with the crankshaft of the engine to which the oil pump is mounted The design of the oil pan can be simplified, and the design range can be improved.
이상 설명한 것과 같이 본 고안 베어링캡에 아이들기어가 설치된 외접기어식 오일펌프구조에 의하면, 구동기어(2)와 맞물린 아이들기어(3)를 매개로 피동기어(5)와 연결된 펌프기어(8)를 구동시켜 오일팬내의 오일을 엔진의 각 섭동부위로 공급시키도록 되어, 피동기어(5)의 크기를 소형화하여 소형펌프화 시킬 수 있을 뿐 아니라, 오일입구(10)와 오일출구(11)를 펌프하우징(12)의 측면에 형성시킴에 따라 크랭크축과의 간섭을 방지할 수 있게 된다.As described above, according to the external gear oil pump structure in which the idler gear is installed in the bearing cap of the present invention, the pump gear 8 connected to the driven gear 5 through the idle gear 3 engaged with the drive gear 2 is connected. By driving the oil in the oil pan to the perturbation parts of the engine, the size of the driven gear 5 can be reduced to a small pump, and the oil inlet 10 and the oil outlet 11 can be pumped. By forming on the side of the housing 12 it is possible to prevent interference with the crankshaft.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019920027615U KR0134458Y1 (en) | 1992-12-30 | 1992-12-30 | Operating structure of external gear type oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019920027615U KR0134458Y1 (en) | 1992-12-30 | 1992-12-30 | Operating structure of external gear type oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940016488U KR940016488U (en) | 1994-07-25 |
| KR0134458Y1 true KR0134458Y1 (en) | 1999-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019920027615U KR0134458Y1 (en) | 1992-12-30 | 1992-12-30 | Operating structure of external gear type oil pump |
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| Country | Link |
|---|---|
| KR (1) | KR0134458Y1 (en) |
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1992
- 1992-12-30 KR KR2019920027615U patent/KR0134458Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR940016488U (en) | 1994-07-25 |
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