KR19990041973A - Piston device for internal combustion engine - Google Patents
Piston device for internal combustion engine Download PDFInfo
- Publication number
- KR19990041973A KR19990041973A KR1019970062665A KR19970062665A KR19990041973A KR 19990041973 A KR19990041973 A KR 19990041973A KR 1019970062665 A KR1019970062665 A KR 1019970062665A KR 19970062665 A KR19970062665 A KR 19970062665A KR 19990041973 A KR19990041973 A KR 19990041973A
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- KR
- South Korea
- Prior art keywords
- piston
- oil
- internal combustion
- combustion engine
- porous plate
- Prior art date
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- Pistons, Piston Rings, And Cylinders (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
본 발명은 내연기관용 피스톤장치에 관한 것이며, 상세하게는 피스톤 핀에 냉각수단을 설치한 피스톤 장치에 관한 것으로서, 피스톤과 실린더 벽 사이의 윤활을 양호하게 하여 냉각을 증진토록 한 것이다.The present invention relates to a piston device for an internal combustion engine, and more particularly to a piston device provided with a cooling means in the piston pin, to improve the cooling by good lubrication between the piston and the cylinder wall.
본 발명은 피스톤(1)과 콘넥팅 로드(2)를 연결하는 피스톤 핀(3)에 콘넥팅로드(2)에 형성된 오일공급통로(4)와 연통되는 오일통로(5)를 형성하여 오일펌프에서 압송되는 오일을 공급토록 하고, 상기 오일통로(5)의 양단에 상기 오일통로(5)보다 그 직경을 크게 형성한 확대부(6)를 형성하여 다공판(7)을 설치함과 동시에 상기 다공판(7)의 내면에 필터(8)를 내장하며, 상기 다공판(7)의 선단에 호상의 비산망(9)을 설치하여서 된 것이다.The present invention forms an oil passage (5) in communication with the oil supply passage (4) formed in the connecting rod (2) on the piston pin (3) connecting the piston (1) and the connecting rod (2) oil pump And supplying the oil pumped from the, forming an enlarged portion (6) having a larger diameter than the oil passage (5) at both ends of the oil passage (5) to install a porous plate (7) The filter 8 is built in the inner surface of the porous plate 7, and the arc-shaped scattering net 9 is provided at the tip of the porous plate 7.
Description
본 발명은 내연기관용 피스톤 장치에 관한 것이며, 상세하게는 피스톤 핀에 냉각수단을 설치한 피스톤 장치에 관한 것이다.The present invention relates to a piston device for an internal combustion engine, and more particularly to a piston device provided with a cooling means in the piston pin.
주지하는 바와 같이 내연기관의 실린더 내의 연소가스 온도는 2,000℃ 이상이고, 피스톤이 실린더 내에서 왕복운동할 때 마찰열이 발생하므로 냉각수단을 구비하고 있으며, 상기한 냉각수단은 실린더 블록을 냉각하는 방법과 피스톤을 냉각하는 방법으로 대별된다.As is well known, the combustion gas temperature in the cylinder of the internal combustion engine is 2,000 ° C. or higher, and since frictional heat is generated when the piston reciprocates in the cylinder, the cooling means includes a cooling means. It is roughly classified as a method of cooling the piston.
상기한 피스톤의 냉각방법은 윤활에 의한 냉각으로서 피스톤의 하부에 오일링 홈을 형성함과 동시에 상기 오일링 홈에 원주방향으로 오일구멍을 형성하여 오일펌프로부터 공급되는 오일을 피스톤의 내부에 공급하여 피스톤을 냉각함과 동시에 오일구멍을 통하여 실린더 벽에 오일을 비산하여 피스톤과 실린더의 마찰열을 냉각하고 있다.The cooling method of the piston is cooling by lubrication to form an oil ring groove in the lower part of the piston and at the same time to form an oil hole in the circumferential direction in the oil ring groove to supply the oil supplied from the oil pump into the piston. At the same time as cooling the piston, oil is splashed on the cylinder wall through the oil hole to cool the frictional heat between the piston and the cylinder.
그러나 최근의 내연기관 특히 자동차용 내연기관은 출력을 크게 하기 위하여 회전 속도를 높이고, 체적효율을 증대하기 위하여 실린더 행정 안지름비(cylinder strok-bore ratio)가 1.0 이하인 단 행정 엔진을 채용하는 경향이기 때문에 피스톤이 과열되기 쉬우므로 상기한 냉각방법만을 채용할 경우에는 피스톤과 실린더의 습동면의 윤활이 양호하지 못하고, 윤활이 양호하지 못함에 따라 실린더의 변형을 일으키거나 실린더 벽의 유막이 파괴되며, 연소상태가 불량하게 되어 출력이 저하되는 문제점 등이 발생하는 것이다.However, in recent years, internal combustion engines, especially automotive internal combustion engines, tend to adopt a single stroke engine having a cylinder strok-bore ratio of 1.0 or less to increase the rotational speed to increase the output and increase the volumetric efficiency. Since the piston is likely to overheat, if only the cooling method described above is employed, lubrication of the piston and the sliding surfaces of the cylinder is not good, and the lubrication is not good, causing deformation of the cylinder or breaking of the oil film on the cylinder wall. The problem is that the state is bad and the output is reduced.
본 발명은 상기한 실정을 감안하여, 피스톤과 실린더 벽 사이의 윤활을 양호하게 하여 냉각을 증진토록 한 내연기관의 피스톤 장치를 제공하는 것을 목적으로 한다.SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a piston device of an internal combustion engine that improves cooling by lubricating between a piston and a cylinder wall.
상기한 목적을 달성하기 위하여, 본 발명은 피스톤과 콘넥팅 로드를 연결하는 피스톤 핀에 콘넥팅 로드에 형성된 오일공급통로와 연통되는 오일통로를 형성하고, 상기 오일통로의 양단에 확대부를 형성하여 다공판을 설치함과 동시에 그 내면에 필터를 내장하며, 상기 다공판의 선단에 비산망을 설치하여서 된 것이다.In order to achieve the above object, the present invention forms an oil passage in communication with the oil supply passage formed in the connecting rod on the piston pin connecting the piston and the connecting rod, and forming enlarged portions at both ends of the oil passage. By installing a blank plate, a filter is built into the inner surface thereof, and a scattering net is provided at the tip of the porous plate.
도 1은 본 발명의 실시예의 요부 절단 측면도.1 is a side view of an essential part of an embodiment of the present invention.
도 2는 본 발명의 실시예의 일요부 분해 사시도.Figure 2 is an exploded perspective view of the main part of the embodiment of the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of Symbols for Main Parts of Drawings>
1 : 피스톤 2 : 콘넥팅 로드1: Piston 2: Connecting Rod
3 : 피스톤 핀 4 : 오일공급통로3: piston pin 4: oil supply passage
5 : 오일통로 6 : 확대부5: oil path 6: enlarged part
7 : 다공판 8 : 필터7: perforated plate 8: filter
9 : 비산망9: flying net
본 발명은 도 1 내지 도 2에 도시한 바와 같이 피스톤(1)과 콘넥팅 로드(2)를 연결하는 피스톤 핀(3)에 콘넥팅 로드(2)에 형성된 오일공급통로(4)와 연통되는 오일통로(5)를 형성하여 오일펌프(미도시)에 압송되는 오일을 공급토록 하고, 상기 오일통로(5)의 양단에 상기 오일통로(5)보다 그 직경을 크게 형성한 확대부(6)를 형성하여 다공판(7)을 설치함과 동시에 상기 다공판(7)의 내면에 필터(8)를 내장하며, 상기 다공판(7)의 선단에 호상의 비산망(9)을 설치하여서 된 것이다.The present invention communicates with the oil supply passage (4) formed in the connecting rod (2) to the piston pin (3) connecting the piston (1) and the connecting rod (2) as shown in Figures 1 to 2 An enlarged portion 6 which forms an oil passage 5 so as to supply oil to be pumped to an oil pump (not shown), and has a larger diameter at both ends of the oil passage 5 than the oil passage 5. By forming a perforated plate (7) and at the same time to incorporate a filter (8) on the inner surface of the perforated plate (7), by installing an arc-shaped scattering net (9) at the tip of the perforated plate (7) will be.
미설명부호 9는 피스톤 핀(3) 지지 스냅링이다.Reference numeral 9 denotes a piston pin 3 support snap ring.
이상과 같은 본 발명은 오일펌프에서 압송되는 오일이 콘넥팅 로드(2)에 형성된 오일공급통로(4)를 경유하여 피스톤 핀(3)에 형성된 오일통로(5)로 유입되어 피스톤 핀(3) 및 피스톤 본체(1)를 냉각하고, 오일통로(5)에 유입된 오일을 확대부(5)에 설치한 다공판(7)을 통하여 필터(8)에서 이물질이 여과된 다음 비산망(9)에서 비산되면서 실린더 벽에 비산되어 피스톤이 실린더 벽에서 왕복운동할 때 유막이 형성되어 윤활을 하면서 피스톤과 실린더 벽을 냉각하는 것이다.In the present invention as described above, the oil pumped from the oil pump flows into the oil passage (5) formed in the piston pin (3) via the oil supply passage (4) formed in the connecting rod (2) to the piston pin (3) And foreign matters are filtered out of the filter 8 through the porous plate 7 in which the piston body 1 is cooled, and the oil flowing into the oil passage 5 is installed in the enlarged part 5. When the piston is scattered on the cylinder wall and the piston reciprocates in the cylinder wall, an oil film is formed to lubricate and cool the piston and the cylinder wall.
상기와 같이 오일이 실린더 벽에 비산될 때 피스톤 핀(3)에 형성된 확대부(6)에 의하여 분산됨과 동시에 다공판(7)은 호상으로 형성되어 있으므로 비산면적이 확대되기 때문에 실린더 벽의 윤활 부위가 확대되므로서 피스톤과 실린더 벽의 윤활이 양호하고 윤활이 양호함에 따라 냉각도 증진되는 것이다.When oil is scattered on the cylinder wall as described above, the lubrication portion of the cylinder wall is dispersed because the scattering area is enlarged because the porous plate 7 is formed in an arc shape while being dispersed by the enlarged portion 6 formed in the piston pin 3. As the piston is enlarged, the lubrication of the piston and the cylinder wall is good and the cooling is improved as the lubrication is good.
이상과 같이 본 발명은 오일펌프에서 피스톤 핀에 형성된 오일통로로 오일을 공급하여 피스톤을 냉각하고, 상기 오일을 피스톤 핀의 양단에 형성한 확대부에서 분산하여 실린더 벽의 윤활을 양호하게 하므로서 실린더 벽 및 피스톤의 변형을 방지하고 유막의 파손이 없으며, 연소상태를 양호하게 유지하여 출력이 저하되지 않는 등의 효과가 있는 것이다.As described above, the present invention supplies oil from the oil pump to the oil passage formed in the piston pin to cool the piston, and disperses the oil in the enlarged portions formed at both ends of the piston pin to improve lubrication of the cylinder wall. And preventing deformation of the piston, no damage to the oil film, and maintaining a good combustion state so that the output is not lowered.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970062665A KR100296629B1 (en) | 1997-11-25 | 1997-11-25 | Piston device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970062665A KR100296629B1 (en) | 1997-11-25 | 1997-11-25 | Piston device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990041973A true KR19990041973A (en) | 1999-06-15 |
| KR100296629B1 KR100296629B1 (en) | 2001-11-22 |
Family
ID=37528053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019970062665A KR100296629B1 (en) | 1997-11-25 | 1997-11-25 | Piston device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100296629B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100475813B1 (en) * | 2002-06-17 | 2005-03-10 | 현대자동차주식회사 | Cooling and lubrication apparatus for piston |
-
1997
- 1997-11-25 KR KR1019970062665A patent/KR100296629B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100475813B1 (en) * | 2002-06-17 | 2005-03-10 | 현대자동차주식회사 | Cooling and lubrication apparatus for piston |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100296629B1 (en) | 2001-11-22 |
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