JPH03122210U - - Google Patents
Info
- Publication number
- JPH03122210U JPH03122210U JP3248390U JP3248390U JPH03122210U JP H03122210 U JPH03122210 U JP H03122210U JP 3248390 U JP3248390 U JP 3248390U JP 3248390 U JP3248390 U JP 3248390U JP H03122210 U JPH03122210 U JP H03122210U
- Authority
- JP
- Japan
- Prior art keywords
- bearing cap
- crankshaft
- skirt
- part forming
- block
- 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
- 238000009423 ventilation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
図面は本考案の実施例を示し、第１図はシリン
ダブロツクの概略構成図、第２図はロアブロツク
の平面図、第３図は第２図の−線断面図、第
４図は第２図の−線断面図である。
１……シリンダブロツク、２……アツパーブロ
ツク、３……ロアブロツク、７……下部スカート
、８，９，１０，１１……ベアリングキヤツプ部
、１３……新気導入通路、２０，２１……円弧状
リブ、２０ｂ……戻り口。
The drawings show an embodiment of the present invention; FIG. 1 is a schematic diagram of the cylinder block, FIG. 2 is a plan view of the lower block, FIG. 3 is a cross-sectional view taken along the line -- in FIG. FIG. 1... Cylinder block, 2... Upper block, 3... Lower block, 7... Lower skirt, 8, 9, 10, 11... Bearing cap portion, 13... Fresh air introduction passage, 20, 21... Arc-shaped rib, 20b...Return port.
Claims (1)
ト部と、クランクシヤフトのベアリングキヤツプ
を形成するベアリングキヤツプ部とが一体的に設
けられたロアブロツクを備えたエンジンにおいて
、 上記ロアブロツクには、スカート部より延び且
つベアリングキヤツプ部間を連結する円弧状のリ
ブが、クランク軸ウエブ及びコネクテイングロツ
ドの回転軌跡を逃げるように設けられ、 上記円弧状リブのクランク軸回転かき下げ側の
ベアリングキヤツプ部間におけるブローバイガス
換気用の新気導入通路が位置しない部位には、リ
ターンオイルの戻り口が貫設されていることを特
徴とするエンジンのブロツク構造。[Scope of Claim for Utility Model Registration] In an engine equipped with a lower block in which a skirt part forming the skirt of the cylinder block and a bearing cap part forming the bearing cap of the crankshaft are integrally provided, the lower block has the following features: An arcuate rib extending from the skirt portion and connecting the bearing cap portions is provided so as to escape the rotation locus of the crankshaft web and the connecting rod, and the bearing cap on the crankshaft rotation side of the arcuate rib is provided. An engine block structure characterized in that a return port for return oil is provided through a portion where a fresh air introduction passage for blow-by gas ventilation between parts is not located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3248390U JP2521666Y2 (en) | 1990-03-27 | 1990-03-27 | Engine block structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3248390U JP2521666Y2 (en) | 1990-03-27 | 1990-03-27 | Engine block structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03122210U true JPH03122210U (en) | 1991-12-13 |
| JP2521666Y2 JP2521666Y2 (en) | 1996-12-25 |
Family
ID=31535478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3248390U Expired - Lifetime JP2521666Y2 (en) | 1990-03-27 | 1990-03-27 | Engine block structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2521666Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008175093A (en) * | 2007-01-16 | 2008-07-31 | Yanmar Co Ltd | Ladder frame |
-
1990
- 1990-03-27 JP JP3248390U patent/JP2521666Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008175093A (en) * | 2007-01-16 | 2008-07-31 | Yanmar Co Ltd | Ladder frame |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2521666Y2 (en) | 1996-12-25 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |