KR200409695Y1 - Cylinder Bore Forming Perforated Intermittent Oil Pockets - Google Patents

Cylinder Bore Forming Perforated Intermittent Oil Pockets Download PDF

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Publication number
KR200409695Y1
KR200409695Y1 KR2020050031436U KR20050031436U KR200409695Y1 KR 200409695 Y1 KR200409695 Y1 KR 200409695Y1 KR 2020050031436 U KR2020050031436 U KR 2020050031436U KR 20050031436 U KR20050031436 U KR 20050031436U KR 200409695 Y1 KR200409695 Y1 KR 200409695Y1
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KR
South Korea
Prior art keywords
cylinder bore
honing
oil pocket
porous
oil pockets
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KR2020050031436U
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Korean (ko)
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오진수
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오진수
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    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • F02F1/20—Other cylinders characterised by constructional features providing for lubrication
    • 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
    • F02F1/00—Cylinders; Cylinder heads 

Abstract

본 고안은 내연기관의 실린더 블록(1)의 보어면을 다공 간헐층 오일 포켓(2)로 가공 하므로서 마찰 표면구조에 지속적인 윤활유막을 형성하도록 하기위한 고안이다.The present invention is designed to form a continuous lubricant film on the friction surface structure by processing the bore surface of the cylinder block (1) of the internal combustion engine into the porous intermittent layer oil pocket (2).

내연기관, 실린더블럭, 실린더 보어면, 윤활유막, 내 시저성, 마찰특성, 내마모성, 경계윤활, 호닝, 빗살문양, 융착, 고착, 다공간헐층 Internal combustion engine, Cylinder block, Cylinder bore surface, Lubricating oil film, Scleresis resistance, Friction property, Wear resistance, Boundary lubrication, Honing, Comb glyph, Fusion, Fixation

Description

다공 간헐층 오일 포켓을 형성시킨 실린더 보어{omitted}Cylinder bore forming a porous intermittent oil pocket

[도 1] 기존의 호닝 작업으로 생성된 보어면의 호닝 문양을 갖는 기존의 실린더 블록1 is a conventional cylinder block having a honing pattern of a bore surface generated by a conventional honing operation.

[도 2] 다공간헐층 오일포켓(2)이 가공된 실린더 보어면과 피스톤(3)과의 관계가 보여진 도면2 is a view showing the relationship between the cylinder bore surface and the piston 3 in which the multi-spaced hull layer oil pocket 2 is processed

[도 3] 실린더 보어면에 윤활을 최적화 시켜 내 시저성을 극대화 시킨 다공 간헐층 오일 포켓(2)을 가공한 실린더 블록3 is a cylinder block machined with a porous intermittent layer oil pocket (2) that maximizes scissor resistance by optimizing lubrication on the cylinder bore surface

[도 4] 오일 포켓 가공 공구Fig. 4 Oil pocketing tool

[도 5] 오일 포켓 가공 방법 일례5 is an example of an oil pocket processing method

* 도면 중 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1 - 실린더 블록1-cylinder block

2 - 다공 간헐층 오일 포켓2-Perforated Intermittent Oil Pocket

2-1 - 다공 간헐층 오일 포켓의 또 다른 문양2-1-Another Glyph of the Perforated Intermittent Oil Pocket

3 - 피스톤3-piston

4- 피스톤링4- piston ring

5- 콘넥팅로드5-connecting rod

6- 플러그6-plug

7 - 기존의 미세한 빗살 문양의 호닝면7-Honing Side of Traditional Fine Comb Pattern

8 - 별도로 개발한 가공 공구8-separately developed machining tools

9 - 초경 이나 열처리 된 쇠9-carbide or heat-treated metal

10 - 공구 회전10-tool rotation

11 - 공구가 가공할 보어의 내면을 따라서 이송11-tool traverses along the inside of the bore to be machined

기존에는 호닝 가공에 의하여 기관의 실린더 보어면이나 압축기 및 진공펌프의 보어면에 윤활 유막을 형성 하기 위하여 (도 1)과 같이 미세한 빗살문양(3)으로 된 호닝 면이 생긴다.Conventionally, a honing surface having a fine comb pattern 3 is formed to form a lubricating oil film on a cylinder bore surface of an engine or a bore surface of a compressor and a vacuum pump by honing.

그 미세한 호닝면에 윤활유가 침투하여 유막을 형성하는데 고속 또는 장시간 가동으로 인하여 호닝면은 쉽게 마모되어 유막이 파괴 되고 이는 피스톤과 보어면이 마찰열로 인하여 융착 고착되는 경우가 종종 발생한다.Lubricating oil penetrates the fine honing surface to form an oil film. Due to high speed or long operation, the honing surface is easily worn and the oil film is destroyed, which often causes the piston and bore surface to be fusion-bonded due to frictional heat.

따라서 빗살문양의 호닝을 깊고 거칠게 가공하면 윤활성은 좋아지나 오일 홈의 연속성으로 인하여 연소실에 압축된 혼합기가 누설 됨에 따라서 효율이 저하되며 연료 소모가 많아지게 된다.Therefore, if the comb pattern honing is processed deeply and roughly, the lubricity is improved, but as the compressed compressor leaks into the combustion chamber due to the continuity of the oil groove, efficiency decreases and fuel consumption increases.

특히 소형 고속엔진에 있어서는 미세한 빗살문양의 호닝 작업으로는 실린더 보어의 상 하사 점 부근에서의 유막이 유지되기 어려운 경계윤활 상태가 된다. 따라서 마찰성능과 내 시저 성능이 중요하게 요구된다.Particularly, in a small high speed engine, a fine comb-shaped honing operation results in a boundary lubrication state in which an oil film near the top and bottom dead center of the cylinder bore is hard to be maintained. Therefore, friction performance and scissor performance are important.

따라서 본 고안은 이와 같은 문제점을 해결하기위한 것으로 본 고안의 목적은 확실한 윤활 유막 형성을 위하여 점선처럼 끊어지고 연결됨이 반복하는 깊은 홈을 다공 간헐층 오일 포켓(2)이라 하고 이를 형성 하므로써 내시저성을 극대화 하는데 있다.Therefore, the present invention is to solve such a problem, and the purpose of the present invention is to form a deep groove in which the breaks and connections are repeated like a dotted line for forming a reliable lubricating oil film. To maximize.

이러한 본 고안의 목적은, 다공 간헐층 오일 포켓(2)을 형성 하는 것이며 이 기술은 비행기, 자동차, 배등의 내연기관의 실린더 보어 내면에 적용할 수 있다 이러한 다공 간헐층 오일 포켓(2)을 형성 하기 위해선 (도 4)과 같이 초경이나 열처리한 강한 쇠(9)로 되어진 가공 공구(8)를 별도로 개발하여 (도 5)처럼 가공 공구(8)를, 공구 중심에서 회전(10) 하면서, 가공할 구멍윤곽(보어내경)을 따라서 공구가 이송(11)하여 점선처럼 끊어지고 연결됨이 반복하는 오일 포켓용 홈을 가공하므로서 다공 간헐층 오일 포켓(2)을 가공할 수 있다. 이때 공구 회전 속도와, 공구가 이송하는 속도를 조절 하면 (도 3)에서 와 같이 (2)과 (2-1)의 처럼 문양이 생긴다. 그리고 이는 단편적인 가공 방법의 예를 말한 것이며 그 외의 가공 방법으로도 다공 간헐층 오일 포켓을 형성할 수 있으며, 다공 간헐층 오일 포켓(2)을 가공한 다음 호닝 작업을 할 수도 있으며 호닝작업에서의 장점인 가공 공차를 최적화 할 수 있다.The purpose of this invention is to form a porous intermittent layer oil pocket (2) and this technique can be applied to the inner surface of the cylinder bore of an internal combustion engine such as airplanes, automobiles, ships. To this end, as shown in FIG. 4, a machining tool 8 made of cemented carbide or heat treated strong metal 9 is separately developed, and the machining tool 8 is rotated 10 at the center of the tool, as shown in FIG. The porous intermittent layer oil pocket 2 can be machined by processing the oil pocket groove that the tool is transported 11 along the hole contour (bore inner diameter) to be broken and connected like a dotted line. At this time, if the tool rotation speed and the speed at which the tool is transported are adjusted, a pattern is generated as in (2) and (2-1) as shown in FIG. 3. And this refers to an example of a fractional processing method, and other processing methods can also form a porous intermittent layer oil pocket, can also be processed by honing after processing the porous intermittent layer oil pocket (2) The machining allowance, which is an advantage, can be optimized.

상기 목적을 갖는 본 고안에 따르면 다공 간헐층의로 형성되어진 오일 포켓 에 저장된 윤활유로 인하여 최적화된 윤막형성이 이루어져 내 시저성이 극대화되며 내마모성이 증대됨에 따라서 수명이 향상되고 연료 효율이 향상됨은 물론 마찰 표면이 감소 함과 동시 냉각 특성이 좋아짐에 따라서 고속엔진에 유리하다.According to the present invention having the above object, the lubricating oil stored in the oil pocket formed of the porous intermittent layer is optimized to form a lubrication layer, thereby maximizing the scissor resistance and increasing the wear resistance, as well as improving the fuel efficiency and friction. As the surface is reduced and the simultaneous cooling characteristic is improved, it is advantageous for high speed engine.

Claims (1)

실린더 내면의 보어면에 다공 간헐적 오일포켓(2) 가공 문양을 갖는 실린더 보어Cylinder bore with a porous intermittent oil pocket (2) processing pattern on the bore surface of the cylinder inner surface
KR2020050031436U 2005-11-03 2005-11-03 Cylinder Bore Forming Perforated Intermittent Oil Pockets KR200409695Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2827194A1 (en) 2013-07-16 2015-01-21 Hwabaek Engineering Co., Ltd. Apparatus and method for forming lubricant recess having minute configuration in curved inner surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2827194A1 (en) 2013-07-16 2015-01-21 Hwabaek Engineering Co., Ltd. Apparatus and method for forming lubricant recess having minute configuration in curved inner surface

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