JPS6012648U - internal combustion engine - Google Patents
internal combustion engineInfo
- Publication number
- JPS6012648U JPS6012648U JP10487083U JP10487083U JPS6012648U JP S6012648 U JPS6012648 U JP S6012648U JP 10487083 U JP10487083 U JP 10487083U JP 10487083 U JP10487083 U JP 10487083U JP S6012648 U JPS6012648 U JP S6012648U
- Authority
- JP
- Japan
- Prior art keywords
- combustion engine
- internal combustion
- cylinder
- microns
- cylinder bore
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図のａは、本考案の１実施例に係る内燃機関の縦断
面図、第１図のｂは、第１図のａの内燃機関のシリンダ
ボアの内壁面における表面粗さを示す説明図、第２図は
、第１図のａの内燃機関のシリンダボアの内壁面の模様
を示す説明図である。
１・・・・・・内燃機関、２・・・・・・シリンダヘッ
ド、３・・・・・・シリンダブロック、４・・・・・・
クランクケース、５・・・・・・ピストン、７・・・・
・・オイルリング、８・・・・・・シリンダボア、９・
・・・・・上部内壁面（シリンダボアの内壁面のうち、
ピストンが上死点及びその近傍にあるときにオイルリン
グが接する位置からシリンダヘッド寄りの部分）、１０
・・・・・・下部内壁面（シリンダボアの内壁面のうち
、ピストンが上死点及びその近傍にあるときにオイルリ
ングが接する位置からクランクケース寄りの部分）。1A is a longitudinal sectional view of an internal combustion engine according to an embodiment of the present invention, and FIG. 1B is an explanatory diagram showing the surface roughness of the inner wall surface of the cylinder bore of the internal combustion engine of FIG. , FIG. 2 is an explanatory diagram showing the pattern of the inner wall surface of the cylinder bore of the internal combustion engine of FIG. 1a. 1... Internal combustion engine, 2... Cylinder head, 3... Cylinder block, 4...
Crankcase, 5...Piston, 7...
・・Oil ring, 8・・・・Cylinder bore, 9・
... Upper inner wall surface (of the inner wall surface of the cylinder bore,
(the part near the cylinder head from the position where the oil ring contacts when the piston is at or near top dead center)
...Lower inner wall surface (the part of the inner wall surface of the cylinder bore that is closer to the crankcase than the position where the oil ring contacts when the piston is at or near top dead center).
Claims (1)
ースとを有し、該シリンダブロック内にはシリンダボア
が穿設され、該シリンダボアにはピストンが往復摺動可
能に嵌挿されている内燃機関であって、前記シリンダボ
アの内壁面に関して、前記ピストンが上死点及びその近
傍にあるときにオイルリングが接する位置から前記シリ
ンダヘッド寄りの部分については、その表面粗さが約０
゜５ミクロン以下とされ、オイルリングが接する前記位
置から前記クランクケース寄りの部分については、その
表面粗さが約０．８ミクロン以上で約３．５ミクロン以
下とされていることを特徴とする内燃機関。An internal combustion engine that has a cylinder, a head, a cylinder block, and a crankcase, a cylinder bore is bored in the cylinder block, and a piston is fitted into the cylinder bore so as to be able to reciprocate and slide, Regarding the inner wall surface of the cylinder bore, the surface roughness of the portion near the cylinder head from the position where the oil ring contacts when the piston is at or near top dead center is about 0.
5 microns or less, and the surface roughness of the portion closer to the crankcase from the position where the oil ring contacts is approximately 0.8 microns or more and approximately 3.5 microns or less. Internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10487083U JPS6012648U (en) | 1983-07-05 | 1983-07-05 | internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10487083U JPS6012648U (en) | 1983-07-05 | 1983-07-05 | internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6012648U true JPS6012648U (en) | 1985-01-28 |
Family
ID=30246061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10487083U Pending JPS6012648U (en) | 1983-07-05 | 1983-07-05 | internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6012648U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000283291A (en) * | 1999-03-31 | 2000-10-13 | Nippon Piston Ring Co Ltd | Cylinder liner |
| JP2010138711A (en) * | 2008-12-09 | 2010-06-24 | Hino Motors Ltd | Cylinder liner structure |
-
1983
- 1983-07-05 JP JP10487083U patent/JPS6012648U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000283291A (en) * | 1999-03-31 | 2000-10-13 | Nippon Piston Ring Co Ltd | Cylinder liner |
| JP2010138711A (en) * | 2008-12-09 | 2010-06-24 | Hino Motors Ltd | Cylinder liner structure |
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