KR100216786B1 - Structure for cooling a piston - Google Patents
Structure for cooling a piston Download PDFInfo
- Publication number
- KR100216786B1 KR100216786B1 KR1019960064400A KR19960064400A KR100216786B1 KR 100216786 B1 KR100216786 B1 KR 100216786B1 KR 1019960064400 A KR1019960064400 A KR 1019960064400A KR 19960064400 A KR19960064400 A KR 19960064400A KR 100216786 B1 KR100216786 B1 KR 100216786B1
- Authority
- KR
- South Korea
- Prior art keywords
- piston
- oil
- pin
- fitted
- cooling structure
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
- F02F3/22—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
본 발명은 차량의 엔진에 설치되는 피스톤의 냉각구조에 관한 것으로 오일제트에 의해 분사되는 오일이 직접 피스톤의 몸체 내부를 흐르도록 하는 피스톤의 냉각구조를 제공하는데 있다.The present invention relates to a cooling structure of a piston installed in an engine of a vehicle, and provides a cooling structure of a piston such that oil injected by an oil jet flows directly inside the body of the piston.
본 발명은 상기와 같은 목적을 달성하기 위한 수단으로서, 피스톤(2)의 핀 보스부(23)에 끼워지는 피스톤핀(31), 피스톤핀에 끼워지는 커넥팅로드(3)를 포함하는 피스톤에 있어서,The present invention as a means for achieving the above object, in the piston comprising a piston pin 31 fitted to the pin boss portion 23 of the piston (2), a connecting rod (3) fitted to the piston pin ,
피스톤(2)의 하사점 위치에서 피스톤의 스컷부(24)를 향해 상향 경사지게 오일을 분사하도록 실린더 블록(1)에 마련되는 오일제트(11)와;An oil jet (11) provided in the cylinder block (1) to inject oil at an inclined upward direction toward the cut portion (24) of the piston at the bottom dead center position of the piston (2);
상기 오일제트(11)로부터 분사되는 오일이 피스톤(2) 몸체 내부를 순환하도록 안내하는 통로로서 그의 입구부(21)는 피스톤의 스컷부(24)에 형성되고 그의 출구부(25)는 피스톤의 배면을 향해 형성되는 오일순환통로(22)와;로 구성되어 있음을 특징으로 한다.A passage for guiding the oil jetted from the oil jet 11 to circulate inside the body of the piston 2, the inlet portion 21 of which is formed in the cut portion 24 of the piston and the outlet portion 25 of the piston Characterized in that consisting of; and the oil circulation passage 22 formed toward the rear.
Description
본 발명은 차량의 엔진에 설치되는 피스톤의 냉각구조에 관한 것이다.The present invention relates to a cooling structure of a piston installed in an engine of a vehicle.
엔진에서는 피스톤이 열부하(약 250℃ 이상)를 많이 받는다. 따라서 피스톤의 배면을 향하여 오일을 공급하므로서 피스톤을 냉각시키는 방식이 이용된다. 그러나 종래 엔진의 경우 도 3 에 도시하는 것과같이 실린더 블록(a)의 일측면의 피스톤 하부에 설치된 오일제트(e)는 오일의 압력압에 의해 피스톤(b)의 저면을 향해 오일을 비산시키는 역할을 한다. 따라서 오일이 미치는 부분은 피스톤의 하부로서 스컷부나 커넥팅로드(c)의 소단부(d)만이 냉각효과를 볼 수 있으며 최대고온 부분인 헤드부분은 효과적인 냉각이 불가능한 것이다.In the engine, the piston receives a lot of heat load (about 250 ° C or more). Therefore, a method of cooling the piston while supplying oil toward the rear surface of the piston is used. However, in the case of a conventional engine, as shown in FIG. 3, the oil jet (e) installed under the piston of one side of the cylinder block (a) serves to scatter oil toward the bottom of the piston (b) by the pressure of the oil. Do it. Therefore, the oil portion is only the small end (d) of the cut portion or the connecting rod (c) as the lower portion of the piston can see the cooling effect, the head portion of the maximum high temperature portion is not effective cooling.
이에 본 발명은 상기한 문제점을 개선시키기 위하여 오일제트에 의해 분사되는 오일이 직접 피스톤의 몸체 내부를 흐르도록 하는 피스톤의 냉각구조를 제공하는데 있다.Accordingly, the present invention is to provide a cooling structure of the piston to allow the oil injected by the oil jet to flow directly inside the body of the piston in order to improve the above problems.
상기한 목적을 달성하기 위한 수단으로 본 발명은,The present invention as a means for achieving the above object,
피스톤(2)의 핀 보스부(23)에 끼워지는 피스톤핀(31), 피스톤핀(31)에 끼워지는 커넥팅로드(3)를 포함하는 피스톤에 있어서,In a piston comprising a piston pin 31 fitted to the pin boss portion 23 of the piston 2 and a connecting rod 3 fitted to the piston pin 31,
피스톤(2)의 하사점 위치에서 피스톤의 스컷부(23)를 향해 상향 경사지게 오일을 분사하도록 실린더 블록(1)에 마련되는 오일제트(11)와;An oil jet (11) provided in the cylinder block (1) to inject oil at an inclined upward direction toward the cut portion (23) of the piston at the bottom dead center position of the piston (2);
상기 오일제트(11)로부터 분사되는 오일이 피스톤(2) 몸체 내부를 순환하도록 안내하는 통로로서 그의 입구부(21)는 피스톤의 스컷부(24)에 형성되고 그의 출구부(25)는 피스톤의 배면을 향해 형성되는 오일순환통로(22)와;로A passage for guiding the oil jetted from the oil jet 11 to circulate inside the body of the piston 2, the inlet portion 21 of which is formed in the cut portion 24 of the piston and the outlet portion 25 of the piston An oil circulation passage 22 formed toward the rear surface;
구성되어 있음을 특징으로 한다.It is characterized by being configured.
도 1 은 본 발명에 의한 피스톤이 상사점에 위치한 냉각구조를 나타내는 정단면도1 is a front sectional view showing a cooling structure in which a piston according to the present invention is located at a top dead center;
도 2 는 본 발명에 의한 피스톤이 하사점에 위치한 냉각구조를 나타내는 정단면도Figure 2 is a front sectional view showing a cooling structure in which the piston according to the present invention is located at the bottom dead center.
도 3 은 종래의 구성을 보인 정단면도Figure 3 is a front sectional view showing a conventional configuration
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 실린더 블록 2 : 피스톤1: cylinder block 2: piston
3 : 커넥팅로드 11 : 오일제트3: connecting rod 11: oil jet
21 : 입구부 22 : 오일순환통로21: inlet 22: oil circulation passage
23 : 핀 보스부 24 : 스컷부23: pin boss portion 24: cut portion
25 : 출구부 31 : 피스톤핀25: outlet 31: piston pin
32 : 소단부32: small end
이하 첨부한 실시예 도면을 참조하여 본 발명을 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
도 1은 본 발명에 의한 피스톤이 상사점에 위치할 때의 냉각구조를 나타내는 정단면도이며, 도 2는 본 발명에 의한 피스톤이 하사점에 이르렀을 때 냉각구조를 나타내는 정단면도로서 피스톤(2)의 핀보스부(23)에는 피스톤핀(31)이 끼워지고 피스톤핀(31)에는 커넥팅로드(3)의 소단부(23)가 끼워진다.1 is a front sectional view showing a cooling structure when the piston according to the present invention is located at a top dead center, and FIG. 2 is a front sectional view showing a cooling structure when the piston according to the present invention reaches a bottom dead center. The pin pin portion 23 of the piston pin 31 is fitted into the piston pin 31, the small end 23 of the connecting rod (3) is fitted.
상기 피스톤(2)에는 스컷부(24)로부터 시작하는 입구부(21)와 몸체의 내부를 통과한 뒤 배면의 출구부(25)로 순환할 수 있도록 오일순환통로(22)를 구비하였으며, 상기 오일순환통로(22)로 오일을 공급하기 위하여 실린더 블록(1)의 일측면에는 피스톤이 하사점에 이르렀을 때 오일순환통로(22)의 입구부(21)와 일치하도록 형성한 오일제트(11)를 구성시키므로서 오일의 원활한 흐름이 이루어 지도록 하였다.The piston (2) was provided with an oil circulation passage (22) so as to circulate to the inlet portion (21) starting from the cut portion 24 and the outlet portion 25 on the back after passing through the interior of the body, In order to supply oil to the oil circulation passage 22, an oil jet 11 formed at one side of the cylinder block 1 to coincide with the inlet portion 21 of the oil circulation passage 22 when the piston reaches the bottom dead center. ) To ensure a smooth flow of oil.
상기와같이 구성된 본 발명은 피스톤(2)이 상사점에 위치할 때에는 오일제트(11)로부터 분사된 오일은 피스톤(2)의 스커트부나 소단부(32)와 핀 보스부(23)를 비롯한 피스톤 배면, 즉 크라운부에 분사되어 피스톤(2)의 배면을 냉각시키게 되며 피스톤(2)이 이동하여 하사점에 이르렀을때에는 오일제트(11)와 오일순환통로(22)의 입구부(21)가 일치하게 되므로서 오일제트로부터 분사되는 오일은 분산되지않고 전량 오일순환통로(22)를 순환하면서 피스톤 몸체를 냉각시키게 된다.According to the present invention configured as described above, when the piston (2) is located at the top dead center, the oil injected from the oil jet (11) includes a piston including the skirt portion or the small end portion (32) and the pin boss portion (23) of the piston (2). It is injected to the back, that is, the crown portion to cool the back of the piston (2) When the piston 2 moves to reach the bottom dead center, the oil jet 11 and the inlet portion 21 of the oil circulation passage 22 is As the oil is injected from the oil jet is not dispersed, the piston body is cooled while circulating the entire oil circulation passage 22 without being dispersed.
이상과 같은 본 발명은 알루미늄 재질인 피스톤의 냉각을 위하여 오일순환통로를 형성하는 것에 의해 간단히 피스톤의 냉각이 가능하게 되어 압축비를 증대시켜 엔진 출력향상이 가능할 뿐만아니라 피스톤의 내구력을 향상 시킬수 있는 것이다.In the present invention as described above, by forming an oil circulation passage for cooling the piston made of aluminum, the piston can be simply cooled, thereby increasing the compression ratio and improving the engine output, as well as improving the durability of the piston.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960064400A KR100216786B1 (en) | 1996-12-11 | 1996-12-11 | Structure for cooling a piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960064400A KR100216786B1 (en) | 1996-12-11 | 1996-12-11 | Structure for cooling a piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980046111A KR19980046111A (en) | 1998-09-15 |
| KR100216786B1 true KR100216786B1 (en) | 1999-09-01 |
Family
ID=19487263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960064400A KR100216786B1 (en) | 1996-12-11 | 1996-12-11 | Structure for cooling a piston |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100216786B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100405783B1 (en) * | 2000-12-04 | 2003-11-15 | 현대자동차주식회사 | Piston cooling device |
| KR20040005201A (en) * | 2002-07-09 | 2004-01-16 | 현대자동차주식회사 | Cooling apparatus for Piston |
-
1996
- 1996-12-11 KR KR1019960064400A patent/KR100216786B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980046111A (en) | 1998-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100216786B1 (en) | Structure for cooling a piston | |
| JPH11132101A (en) | Cooling system of piston for internal combustion engine | |
| JP2594905B2 (en) | Liquid-cooled engine cooling system | |
| US2443518A (en) | Cooling system for internal-combustion engines | |
| US3165095A (en) | Cylinder head | |
| KR200152412Y1 (en) | Cooling structure of cylinder block | |
| KR100365204B1 (en) | Structure for cooling valve seat of cylinder head | |
| JPH0311398Y2 (en) | ||
| JPH064021Y2 (en) | Piston cooling device for internal combustion engine | |
| KR20100018868A (en) | Water jacket structure of gasoline direct injection engine for cooling injector | |
| JPS6129969Y2 (en) | ||
| JPH10176599A (en) | Piston for internal combustion engine | |
| JPH0755289Y2 (en) | Reciprocating engine piston | |
| KR100427068B1 (en) | Cooling effect elevation device of piston | |
| JPS5856353Y2 (en) | Internal combustion engine cylinder liner cooling system | |
| KR19980052638U (en) | Cylinder reinforcement structure | |
| KR960005723Y1 (en) | Piston oil-hole | |
| JP2014088840A (en) | Structure of oil jet nozzle | |
| KR19990020861U (en) | Cooling structure of the engine oil pan | |
| KR19980050744U (en) | Cylinder block cooling structure of multi-cylinder engine | |
| KR0149269B1 (en) | Siamese cylinder block of water cooled engine | |
| RU2033536C1 (en) | Device for cooling pistons of two-stroke internal combustion engine | |
| KR0137518Y1 (en) | Oil gallery for engine piston | |
| JPH0219564Y2 (en) | ||
| KR19980074252A (en) | Diesel engine in indirect injection combustion chamber with direct injection combustion chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| LAPS | Lapse due to unpaid annual fee |