JPH0387906U - - Google Patents
Info
- Publication number
- JPH0387906U JPH0387906U JP14948889U JP14948889U JPH0387906U JP H0387906 U JPH0387906 U JP H0387906U JP 14948889 U JP14948889 U JP 14948889U JP 14948889 U JP14948889 U JP 14948889U JP H0387906 U JPH0387906 U JP H0387906U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder block
- partition wall
- side wall
- wall
- communication hole
- 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.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims description 7
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
第１図は実施例に係るシリンダブロツクの部分
縦断面図、第２図はシリンダブロツク本体を下か
ら見た底面図。
１……エンジン本体、２〜４，６〜８……気筒
、１４……シリンダブロツク本体、１４ａ……シ
リンダブロツク本体の側壁、１５……ロアブロツ
ク、１５ａ……ロアブロツクの側壁、１７……オ
イルリターン孔、１８……クランク室、１９……
隔壁、２０……軸受部、２１……連通孔、Ｌ１…
…連通孔側の肉厚、Ｌ２……シリンダブロツク外
部側の肉厚。
FIG. 1 is a partial longitudinal cross-sectional view of a cylinder block according to an embodiment, and FIG. 2 is a bottom view of the cylinder block main body viewed from below. 1...Engine body, 2-4, 6-8...Cylinder, 14...Cylinder block body, 14a...Side wall of cylinder block body, 15...Lower block, 15a...Side wall of lower block, 17...Oil return Hole, 18... Crank chamber, 19...
Partition wall, 20...Bearing portion, 21...Communication hole, L1 ...
...Thickness on the communication hole side, L 2 ...Thickness on the outside side of the cylinder block.
Claims (1)
クシフトを挟んで上下に分割されたシリンダブロ
ツク本体とロアブロツクとで構成され、 該シリンダブロツクは、そのクランク室が、気
筒間において、前記シリンダブロツクの一の側壁
から他の側壁にわたつて延びる隔壁で仕切られて
、該隔壁に前記クランクシヤフトの軸受部が形成
され、 該隔壁と前記シリンダブロツクの側壁との合流
部には、前記隔壁側に、該隔壁で仕切られた一の
クランク室と他のクランク室とを連通する連通孔
が設けられ、前記側壁側に、前記シリンダブロツ
ク本体から前記ロアブロツクに連なるオイルリタ
ーン孔が設けられたエンジンのシリンダブロツク
構造において、 前記オイルリターン孔と前記連通孔との間の肉
厚が除肉されて、前記連通孔の有効断面積が拡大
されている、 ことを特徴とするエンジンのシリンダブロツク構
造。[Claims for Utility Model Registration] A cylinder block of a multi-cylinder engine is composed of a cylinder block main body and a lower block which are divided into upper and lower parts with a crank shift in between, and the cylinder block has a crank chamber between the cylinders. The cylinder block is partitioned by a partition wall extending from one side wall to the other side wall, and a bearing portion of the crankshaft is formed in the partition wall, and a junction of the partition wall and the side wall of the cylinder block is provided with a partition wall extending from one side wall to another side wall. A communication hole communicating between one crank chamber and another crank chamber partitioned by the partition wall is provided on the partition wall side, and an oil return hole is provided on the side wall side leading from the cylinder block body to the lower block. A cylinder block structure for an engine, characterized in that a wall thickness between the oil return hole and the communication hole is removed to enlarge an effective cross-sectional area of the communication hole. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14948889U JPH0721850Y2 (en) | 1989-12-26 | 1989-12-26 | Engine cylinder block structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14948889U JPH0721850Y2 (en) | 1989-12-26 | 1989-12-26 | Engine cylinder block structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0387906U true JPH0387906U (en) | 1991-09-09 |
| JPH0721850Y2 JPH0721850Y2 (en) | 1995-05-17 |
Family
ID=31695877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14948889U Expired - Fee Related JPH0721850Y2 (en) | 1989-12-26 | 1989-12-26 | Engine cylinder block structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0721850Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011179483A (en) * | 2010-03-04 | 2011-09-15 | Honda Motor Co Ltd | Multi-cylinder engine |
| JP2015063905A (en) * | 2013-09-24 | 2015-04-09 | 本田技研工業株式会社 | Oil recovery device of internal combustion engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5568890B2 (en) * | 2009-06-02 | 2014-08-13 | スズキ株式会社 | Oil breather device for motorcycle engines |
-
1989
- 1989-12-26 JP JP14948889U patent/JPH0721850Y2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011179483A (en) * | 2010-03-04 | 2011-09-15 | Honda Motor Co Ltd | Multi-cylinder engine |
| JP2015063905A (en) * | 2013-09-24 | 2015-04-09 | 本田技研工業株式会社 | Oil recovery device of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0721850Y2 (en) | 1995-05-17 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |