KR100475918B1 - cylinder wall of cylinder block of an engine - Google Patents

cylinder wall of cylinder block of an engine Download PDF

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Publication number
KR100475918B1
KR100475918B1 KR10-2002-0055725A KR20020055725A KR100475918B1 KR 100475918 B1 KR100475918 B1 KR 100475918B1 KR 20020055725 A KR20020055725 A KR 20020055725A KR 100475918 B1 KR100475918 B1 KR 100475918B1
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KR
South Korea
Prior art keywords
cylinder wall
cylinder
engine
shared
thickness
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KR10-2002-0055725A
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Korean (ko)
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KR20040024187A (en
Inventor
노준헌
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현대자동차주식회사
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Priority to KR10-2002-0055725A priority Critical patent/KR100475918B1/en
Publication of KR20040024187A publication Critical patent/KR20040024187A/en
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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 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1816—Number of cylinders four
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/20—Multi-cylinder engines with cylinders all in one line

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

본 발명은 인접한 두 실린더가 공유한 실린더벽의 공유부에 연속하여 연결되는 실린더벽 부분의 두께를 다른 곳보다 얇게 형성하도록 함으로써, 사이아미즈 엔진의 공유된 실린더벽의 냉각이 보다 효율적으로 이루어질 수 있도록 한다.According to the present invention, the thickness of the cylinder wall portion continuously connected to the shared portion of the cylinder wall shared by two adjacent cylinders is made thinner than that of the other, so that the shared cylinder wall of the Siamese engine can be cooled more efficiently. Make sure

Description

엔진 실린더블록의 실린더벽{cylinder wall of cylinder block of an engine}Cylinder wall of cylinder block of an engine

본 발명은 엔진의 실린더블록에 관한 것으로서, 보다 상세하게는 실린더블록에서 피스톤의 왕복운동을 가이드하기 위해 실린더를 형성하는 실린더벽의 구조에 관한 것이다.The present invention relates to a cylinder block of an engine, and more particularly to a structure of a cylinder wall forming a cylinder to guide the reciprocating movement of a piston in the cylinder block.

도 1에는 일반적인 사이아미즈 엔진(siamese engine)의 실린더블록(100)이 도시되어 있는바, 인접한 실린더(102)들은 실린더벽(104)을 서로 공유하고 있고, 이 실린더벽의 공유부(106)에는 냉각수가 흐를 수 있는 슬롯이 형성되어 있지 않다.1 shows a cylinder block 100 of a typical siamese engine, in which adjacent cylinders 102 share a cylinder wall 104 with each other, and a shared portion 106 of the cylinder wall. There is no slot formed in the cooling water flow.

따라서, 이와 같은 구조의 실린더블록(100)에서는 냉각을 위한 냉각수의 흐름이 인접한 두 실린더의 사이에서 이루어지지 못해서, 개별적인 각 실린더의 주변에서 고른 열전달이 이루어지지 못하는 문제점이 있다. Therefore, in the cylinder block 100 of such a structure, the flow of the cooling water for cooling is not made between two adjacent cylinders, and there is a problem in that even heat transfer is not performed around the respective individual cylinders.

더구나, 실린더벽(104)을 공유하는 사이아미즈 엔진에서 상기 실린더벽의 공유부(106)는 양쪽의 실린더(102)로부터 열을 공급 받게 되므로 냉각의 필요성은 실린더벽의 다른 부위보다 크면서도, 냉각수와의 접촉상태는 더욱 불리하여 실린더벽(104)에 작용하는 열부하의 불균형이 크게 초래되는 문제점이 있다.Moreover, in the Siamese engine sharing the cylinder wall 104, the share 106 of the cylinder wall receives heat from both cylinders 102, so that the need for cooling is greater than other parts of the cylinder wall. The contact state with the coolant is further disadvantageous, which causes a large imbalance of heat load acting on the cylinder wall 104.

이에 본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 사이아미즈 엔진의 공유된 실린더벽의 냉각이 보다 효율적으로 이루어질 수 있도록 한 엔진 실린더블록의 실린더벽을 제공함에 그 목적이 있다. Accordingly, an object of the present invention is to provide a cylinder wall of an engine cylinder block that enables the cooling of a shared cylinder wall of a Siamese engine more efficiently.

상기한 바와 같은 목적을 달성하기 위한 본 발명 엔진 실린더블록의 실린더벽은 실린더벽의 인접한 두 실린더에 공유된 공유부에 연속하여 연결되는 실린더벽 부분의 실린더벽 두께는 다른 부분에 비하여 얇게 형성된 것을 특징으로 한다.The cylinder wall of the engine cylinder block of the present invention for achieving the object as described above is characterized in that the thickness of the cylinder wall portion of the cylinder wall portion that is connected in succession to the shared portion shared to two adjacent cylinders of the cylinder wall is thinner than other portions It is done.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 2는 본 발명에 따른 엔진 실린더블록의 실린더벽의 일실시예를 도시한 것으로서, 실린더벽(1)의 인접한 두 실린더에 공유된 공유부(3)에 연속하여 연결되는 실린더벽 부분(5)의 두께는 다른 부분에 비하여 얇게 형성되어 있다.2 shows an embodiment of a cylinder wall of an engine cylinder block according to the invention, in which a cylinder wall part 5 is connected in series to a shared part 3 shared by two adjacent cylinders of the cylinder wall 1. The thickness of is formed thinner than other parts.

본 실시예에서는, 상기 공유부(3)에 연속하여 연결되는 실린더벽 부분(5)의 두께를 실린더벽의 흡기측 및 배기측으로부터 점진적으로 얇아지도록 형성하였다.In this embodiment, the thickness of the cylinder wall portion 5 continuously connected to the sharing section 3 is formed so as to gradually become thinner from the intake side and the exhaust side of the cylinder wall.

물론, 상기 공유부(3)에 연속하여 연결되는 실린더벽 부분(5)이 상기와 같이 실린더벽(1)의 흡기측 및 배기측으로부터 점진적으로 얇아지지 않고, 국소적으로 다소 급격히 얇아지도록 형성할 수도 있을 것이나, 이러한 경우에는 응력집중의 문제가 수반될 것이다.Of course, the cylinder wall portion 5 which is continuously connected to the sharing part 3 is formed so as not to be gradually thinned from the intake side and the exhaust side of the cylinder wall 1, but rather thinly locally. It may be possible, but in this case, the problem of stress concentration will be accompanied.

상기한 바와 같은 실린더벽(1)의 구조를 가지게 되면, 자연적으로 실린더벽의 공유부(3) 폭이 작아지고, 워터자켓(7)의 냉각수가 실린더벽의 공유부(3)쪽으로 보다 깊은 곳까지 유동하게 됨으로써, 실린더벽 공유부(3)의 열집중을 효과적으로 해소시키면서 실린더벽(1)의 보다 효과적인 냉각작용을 도모할 수 있다.With the structure of the cylinder wall 1 as described above, the width of the shared part 3 of the cylinder wall naturally decreases, and the coolant of the water jacket 7 is deeper toward the shared part 3 of the cylinder wall. By being flowed up to, it is possible to more effectively cool the cylinder wall 1 while effectively eliminating the heat concentration of the cylinder wall sharing part 3.

또한, 상기한 바와 같은 효과적인 냉각작용을 수반하면서도 실린더벽의 흡기측 및 배기측에는 충분한 벽 두께를 확보할 수 있어서, 엔진의 작동시에 발생하는 압력에 대해서 실린더벽의 변형이 효과적으로 방지될 수 있다.In addition, it is possible to ensure a sufficient wall thickness on the intake side and the exhaust side of the cylinder wall with the effective cooling action as described above, so that the deformation of the cylinder wall can be effectively prevented against the pressure generated during operation of the engine.

참고적으로, 도 3은 본 발명이 적용된 구체적인 엔진의 평면도로서, 두 실린더의 공유부(3)에 연속하여 연결되는 실린더벽 부분(5)의 두께를 실린더벽의 흡기측 및 배기측으로부터 점진적으로 얇아지도록 형성한 것을 도시하고 있다.For reference, FIG. 3 is a plan view of a specific engine to which the present invention is applied, and the thickness of the cylinder wall portion 5 continuously connected to the shared portion 3 of the two cylinders is gradually increased from the intake side and the exhaust side of the cylinder wall. The thing formed so that it may become thin is shown.

본 실시예에서 상기 실린더벽의 흡기측 및 배기측의 두께는 7.5mm이고 상기 공유부에 연속하여 연결되는 실린더벽 부분(5)의 실린더벽 두께는 5.9mm로서 상기 7.5mm로부터 5.9mm로 점진적으로 실린더벽의 두께가 얇아지게 형성되어 있다.In this embodiment, the thickness of the intake side and the exhaust side of the cylinder wall is 7.5 mm, and the cylinder wall thickness of the cylinder wall portion 5 continuously connected to the sharing part is 5.9 mm, gradually increasing from 7.5 mm to 5.9 mm. The thickness of the cylinder wall is formed thin.

이상과 같이 본 발명에 의하면, 인접한 두 실린더가 공유한 실린더벽의 공유부에 연속하여 연결되는 실린더벽 부분의 두께를 다른 곳보다 얇게 형성하도록 함으로써, 사이아미즈 엔진의 공유된 실린더벽의 냉각이 보다 효율적으로 이루어질 수 있도록 한다. As described above, according to the present invention, the thickness of the cylinder wall portion continuously connected to the sharing portion of the cylinder wall shared by two adjacent cylinders is made thinner than that of the other, thereby cooling the shared cylinder wall of the Siamese engine. Make it more efficient.

도 1은 종래의 일반적인 실린더블록의 평면도,1 is a plan view of a conventional general cylinder block,

도 2은 본 발명에 따른 실린더블록의 평면도,2 is a plan view of a cylinder block according to the present invention;

도 3은 본 발명이 적용된 구체적인 엔진의 실린더블록 평면도이다.3 is a plan view of a cylinder block of a specific engine to which the present invention is applied.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

1; 실린더벽One; Cylinder wall

3; 실린더벽의 공유부3; Shared part of cylinder wall

5; 실린더벽의 공유부에 연속하여 연결되는 실린더벽 부분5; Cylinder wall part connected continuously to the shared part of the cylinder wall

7; 워터자켓7; Water jacket

Claims (2)

실린더벽의 인접한 두 실린더에 공유된 공유부에 연속하여 연결되는 실린더벽 부분의 두께는 실린더벽의 흡기측 및 배기측으로부터 점진전으로 얇아지도록 형성된 것을 특징으로 하는 엔진 실린더블록의 실린더벽.A cylinder wall of an engine cylinder block, characterized in that the thickness of the portion of the cylinder wall that is continuously connected to the shared portion shared by two adjacent cylinders of the cylinder wall is thinned progressively from the intake side and the exhaust side of the cylinder wall. 삭제delete
KR10-2002-0055725A 2002-09-13 2002-09-13 cylinder wall of cylinder block of an engine KR100475918B1 (en)

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KR10-2002-0055725A KR100475918B1 (en) 2002-09-13 2002-09-13 cylinder wall of cylinder block of an engine

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Application Number Priority Date Filing Date Title
KR10-2002-0055725A KR100475918B1 (en) 2002-09-13 2002-09-13 cylinder wall of cylinder block of an engine

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KR100475918B1 true KR100475918B1 (en) 2005-03-10

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61167143A (en) * 1985-01-18 1986-07-28 Honda Motor Co Ltd Cooling apparatus for cylinder block of water cooling type multicylinder internal-combustion engine
JPS63164523U (en) * 1987-04-15 1988-10-26
JPH0476252A (en) * 1990-07-19 1992-03-11 Nippon Light Metal Co Ltd Concatenated type cylinder liners for internal combustion engine
KR930013454A (en) * 1991-12-27 1993-07-21 전성원 Cylinder block of car engine
JPH10213006A (en) * 1997-01-29 1998-08-11 Yamaha Motor Co Ltd Cylinder block of engine
JPH10238398A (en) * 1997-02-26 1998-09-08 Toyota Motor Corp Cylinder block and manufacture thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61167143A (en) * 1985-01-18 1986-07-28 Honda Motor Co Ltd Cooling apparatus for cylinder block of water cooling type multicylinder internal-combustion engine
JPS63164523U (en) * 1987-04-15 1988-10-26
JPH0476252A (en) * 1990-07-19 1992-03-11 Nippon Light Metal Co Ltd Concatenated type cylinder liners for internal combustion engine
KR930013454A (en) * 1991-12-27 1993-07-21 전성원 Cylinder block of car engine
JPH10213006A (en) * 1997-01-29 1998-08-11 Yamaha Motor Co Ltd Cylinder block of engine
JPH10238398A (en) * 1997-02-26 1998-09-08 Toyota Motor Corp Cylinder block and manufacture thereof

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Publication number Publication date
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