KR0131648Y1 - Piston pin of internal combustion engine - Google Patents
Piston pin of internal combustion engine Download PDFInfo
- Publication number
- KR0131648Y1 KR0131648Y1 KR2019940036275U KR19940036275U KR0131648Y1 KR 0131648 Y1 KR0131648 Y1 KR 0131648Y1 KR 2019940036275 U KR2019940036275 U KR 2019940036275U KR 19940036275 U KR19940036275 U KR 19940036275U KR 0131648 Y1 KR0131648 Y1 KR 0131648Y1
- Authority
- KR
- South Korea
- Prior art keywords
- piston pin
- ball
- internal combustion
- combustion engine
- present
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J7/00—Piston-rods
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
본 고안은 내연기관용 피스톤 핀에 관한 것으로서, 열전도를 양호하게 하여 냉각성능을 향상시키므로서 소착 및 긁힘 마모를 방지토록 한 것이다.The present invention relates to a piston pin for an internal combustion engine, to improve the thermal conductivity to improve the cooling performance to prevent seizure and scratch wear.
본 고안은 피스톤 핀 본체(1)에 밀페중공부(2)를 형성하여 열전도성이 양호한 금속나트륨(3)을 충진함과 동시에 볼(4)을 좌우로 유동할 수 있게 끼워 넣고, 볼(4)의 양측에 코일스프링(5)(5')을 설치하여서 된 것이다. 상기한 금속나트륨(3)은 융점이 95℃이고 비점이 882.9℃이며, 그 충진 양은 밀폐중공부(2) 체적의 40 - 60%가 적당하다.The present invention forms a sealed hollow portion (2) in the piston pin body (1) to fill the metal sodium (3) with good thermal conductivity, while inserting the ball (4) to flow from side to side, the ball (4) The coil springs 5 and 5 'are provided on both sides of the coil. The metal sodium (3) has a melting point of 95 ° C. and a boiling point of 882.9 ° C., and the filling amount thereof is suitably 40 to 60% of the volume of the closed hollow part 2.
Description
제1도는 본 고안의 실시예의 단면도.1 is a cross-sectional view of an embodiment of the present invention.
제2도는 본 고안의 실시예의 설치상태 단면도.2 is a cross-sectional view of the installation state of the embodiment of the present invention.
제3도는 종래의 피스톤 핀의 단면도.3 is a cross-sectional view of a conventional piston pin.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 피스톤 핀 본체 2 : 밀폐중공부1: piston pin body 2: airtight hollow part
3 : 금속나트륨 4 : 볼3: sodium metal 4: ball
5,5' : 코일스프링5,5 ': coil spring
본 고안은 내연기관용 피스톤 핀에 관한 것이다.The present invention relates to a piston pin for an internal combustion engine.
주지하는 바와 같이 피스톤 핀은 피스톤과 커넥팅 로드를 연결하여 피스톤이 받는 폭발압력을 커넥팅 로드를 통하여 크랭크축에 전달하는 것이므로 항상 변화하는 하중을 받고 있고 연소실의 발생열에 의하여 고온상태를 유지하고 있어서 피스톤과 피스톤 핀의 열부하에 의하여 소착 및 긁힘(scuffing) 마모현상이 발생되므로 냉각수단을 고려하여야 한다. 그러나 종래의 피스톤 핀은 제3도에 도시한 바와 같이 피스톤 핀 본체(10)에 중공부(11)를 형성한 것이므로 피스톤 핀 본체(10)를 피스톤의 보수부에 설치하면 중공부(11)가 실린더 벽에 의하여 폐쇄되므로서 중공부(11)에서의 열전달이 불량하여 냉각이 양호하지 못한 결점이 있는 것이다.As is well known, the piston pin connects the piston and the connecting rod to transfer the explosion pressure received by the piston to the crankshaft through the connecting rod. Therefore, the piston pin is constantly changing the load and maintains a high temperature by the heat generated in the combustion chamber. Cooling means should be considered as sintering and scuffing wear occur due to the thermal load on the piston pins. However, since the conventional piston pin is a hollow portion 11 formed in the piston pin body 10 as shown in FIG. 3, when the piston pin body 10 is installed in the repair portion of the piston, the hollow portion 11 is There is a drawback of poor cooling due to poor heat transfer at the hollow part 11 as it is closed by the cylinder wall.
본 고안은 상기한 결점을 시정하여 열전도를 양호하게 하여 냉각성능이 향상되는 내연기관용 피스톤 핀을 제공하는 것을 목적으로 한다.The object of the present invention is to provide a piston pin for an internal combustion engine that improves cooling performance by correcting the above-described drawbacks and improving cooling performance.
본 고안은 상기한 목적을 달성하기 위하여 피스톤 핀 본체에 밀폐중공부를 형성하여 금속나트륨을 충진함과 동시에 불을 좌우로 유동할 수 있게 끼워넣고, 볼의 양측에 코일스프링을 설치하여서 된 것이다.In order to achieve the above object, the present invention forms a sealed hollow portion in the piston pin body to fill the metal sodium and to insert the fire to flow from side to side, and to install coil springs on both sides of the ball.
이하 실시예를 도면에 의하여 설명한다.Embodiments will be described below with reference to the drawings.
본 고안은 제1도에 도시한 바와 같이 피스톤 핀 본체(1)에 밀폐중공부(2)를 형성하여 열전도성이 양호한 금속나트륨(3)을 충진함과 동시에 볼(4)을 좌우로 유동할 수 있게 끼워 넣고, 볼(4)의 양측에 코일스프링(5)(5')을 설치하여서 된 것이다. 상기한 금속나트륨(3)은 융점이 95℃이고 비점이 882.9℃이며, 그 충진 양은 밀폐중공부(2) 체적의 40 - 60%가 적당하다.The present invention forms a sealed hollow portion 2 in the piston pin body 1 as shown in FIG. 1 to fill the metal sodium 3 having good thermal conductivity and to simultaneously flow the ball 4 from side to side. The coil springs 5 and 5 'are provided on both sides of the ball 4 so as to be fitted. The metal sodium (3) has a melting point of 95 ° C. and a boiling point of 882.9 ° C., and the filling amount thereof is suitably 40 to 60% of the volume of the closed hollow part 2.
미 설명부호 6은 피스톤, 7은 커넥팅 로드이다.Reference numeral 6 denotes a piston and 7 a connecting rod.
이상과 같은 본 고안은 실린더내의 연소가스의 발생열은 피스톤(6)을 경유하여 피스톤 핀 본체(1)에 전도되면서 밀폐중공부(2)에 충진한 금속나트륨(3)에 전도되고, 피스톤은 축압 및 관성에 의하여 좌우방향으로 움직이므로 이때 밀폐중공부(2)에 끼워 넣은 볼(4)도 코일스프링(5)(5')의 압축·인장을 반복하면서 좌우방향으로 유동하여 금속나트륨(3)에 동적흐름을 유발시켜서 금속나트륨(3)의 전도열을 외부로 방출하는 것이다.The present invention as described above is generated heat of the combustion gas in the cylinder is conducted to the piston pin body (1) via the piston (6) while being conducted to the metal sodium (3) filled in the closed hollow portion (2), the piston is accumulated And the ball 4 inserted into the sealed hollow part 2 also flows from side to side while repeating the compression and tensioning of the coil springs 5 and 5 'by the inertia. By inducing dynamic flow in the conduction heat of the sodium metal (3) to the outside.
이상과 같이 본 고안은 피스톤 핀 본체에 밀폐중공부를 형성하여 금속나트륨을 충진함과 동시에 볼에 의하여 금속나트륨의 동적흐름을 유발하여 피스톤 핀을 냉각시키므로서 그 냉각성능이 양호하게 피스톤 핀의 소착 및 긁힘 마모현상을 방지할 수 있는 등의 효과가 있는 것이다.As described above, the present invention forms a sealed hollow portion in the piston pin body to fill the metal sodium and at the same time cause the dynamic flow of the metal sodium by the ball to cool the piston pin, so that the cooling performance is well adhered to the piston pin. And the effect of being able to prevent scratch wear phenomenon.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940036275U KR0131648Y1 (en) | 1994-12-27 | 1994-12-27 | Piston pin of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940036275U KR0131648Y1 (en) | 1994-12-27 | 1994-12-27 | Piston pin of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960023669U KR960023669U (en) | 1996-07-22 |
| KR0131648Y1 true KR0131648Y1 (en) | 1998-12-01 |
Family
ID=19403126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019940036275U KR0131648Y1 (en) | 1994-12-27 | 1994-12-27 | Piston pin of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0131648Y1 (en) |
-
1994
- 1994-12-27 KR KR2019940036275U patent/KR0131648Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR960023669U (en) | 1996-07-22 |
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