JPS6235845Y2 - - Google Patents
Info
- Publication number
- JPS6235845Y2 JPS6235845Y2 JP2292083U JP2292083U JPS6235845Y2 JP S6235845 Y2 JPS6235845 Y2 JP S6235845Y2 JP 2292083 U JP2292083 U JP 2292083U JP 2292083 U JP2292083 U JP 2292083U JP S6235845 Y2 JPS6235845 Y2 JP S6235845Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- cylinder head
- cooling water
- engine
- passage
- 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.)
- Expired
Links
- 239000000498 cooling water Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 22
- 230000006866 deterioration Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
Description
【考案の詳細な説明】
この考案は、潤滑油の通路を設けた４サイクル
エンジンのエンジンブロツクに関する。[Detailed Description of the Invention] This invention relates to an engine block for a four-stroke engine provided with a passage for lubricating oil.
オーバーヘツドカムタイプの４サイクルエンジ
ンでは、第１図および第２図に示すように、オイ
ルポンプによつて圧送したオイルをシリンダヘツ
ド１のカムシヤフト２やタペツトの摺動部に供給
し、潤滑を終えたオイルはカムシヤフトハウジン
グ３を出て、シリンダヘツド１およびシリンダブ
ロツク４のウオータジヤケツト５の外壁６を縦に
貫通するオイル落下通路７を落下してオイルパン
８に戻されるようになつている。 In an overhead cam type 4-cycle engine, as shown in Figures 1 and 2, oil is pumped by an oil pump and supplied to the camshaft 2 of the cylinder head 1 and the sliding parts of the tappet to finish lubrication. The oil leaves the camshaft housing 3, falls through an oil drop passage 7 that vertically penetrates the outer wall 6 of the water jacket 5 of the cylinder head 1 and the cylinder block 4, and is returned to the oil pan 8. .
この考案は、上記のオイル循環のメカニズムを
利用し、エンジン冷却水によつてオイルを同時に
冷却させることによつて、オイルの劣化を防いで
寿命を延ばすように図つた４サイクルエンジンの
エンジンブロツクを提供するものである。 This idea utilizes the above-mentioned oil circulation mechanism to simultaneously cool the oil with engine cooling water, thereby preventing oil deterioration and extending its life. This is what we provide.
第３図および第４図にこの考案の好ましい実施
例を示す。 A preferred embodiment of this invention is shown in FIGS. 3 and 4.
シリンダブロツク４のウオータジヤケツト５の
一部には、冷却水の入口９が開口し、ウオータポ
ンプ１０が装設されて、ラジエタによつて冷やさ
れた冷却水を導入している。 A cooling water inlet 9 is opened in a part of the water jacket 5 of the cylinder block 4, and a water pump 10 is installed to introduce cooling water cooled by a radiator.
この冷却水入口４に面して外壁６ａに縦の凸条
１１が突設され、その中心を縦に貫通してオイル
落下通路１２が設けられている。シリンダヘツド
１の各部を潤滑したオイルの一部がこのオイル落
下通路１２を通つてオイルパン８に落下して戻
る。オイル落下通路１２の外表は導入されたばか
りの低温度の冷却水の流れに３方を晒されている
ので、落下途中のオイルは効果的に冷却される。 A vertical protrusion 11 is protruded from the outer wall 6a facing the cooling water inlet 4, and an oil falling passage 12 is provided vertically passing through the center thereof. A portion of the oil that has lubricated various parts of the cylinder head 1 falls through this oil drop passage 12 into the oil pan 8 and returns. Since the outer surface of the oil falling passage 12 is exposed on three sides to the flow of low-temperature cooling water that has just been introduced, the oil that is falling is effectively cooled.
以上のように、この考案に係る４サイクルエン
ジンのエンジンブロツクは、シリンダヘツドから
シリンダブロツクを縦に貫通するオイル落下通路
を、ウオータジヤケツトの冷却水入口に突設した
凸条の中に設けたもので、低温度の冷却水でオイ
ルを効果的に冷却し、オイルの温度が上昇するの
を抑え、オイルの劣化を防いでオイル寿命を長く
する。オイル冷却のための専用補器を用いること
なく、シリンダブロツクと一体に構成でき、コス
トアツプを招かずにエンジン潤滑系の機能を向上
する効果がある。 As described above, in the engine block of the four-stroke engine according to this invention, an oil fall passage that vertically penetrates the cylinder block from the cylinder head is provided in the protrusion protruding from the cooling water inlet of the water jacket. This system effectively cools the oil with low-temperature cooling water, suppresses oil temperature rise, prevents oil deterioration, and extends oil life. It can be constructed integrally with the cylinder block without using a dedicated auxiliary device for oil cooling, and has the effect of improving the function of the engine lubrication system without increasing costs.
第１図および第２図は従来のエンジンブロツク
を示し、第１図は第２図Ｂ−Ｂ矢視縦断面図、第
２図は第１図Ａ−Ａ矢視横断面図であり、第３図
および第４図はこの考案の１実施例になるエンジ
ンブロツクで、第３図は第４図Ｄ−Ｄ矢視縦断面
図、第４図は第３図Ｃ−Ｃ矢視横断面図である。
１……シリンダヘツド、４……シリンダブロツ
ク、５……ウオータジヤケツト、８……オイルパ
ン、９……冷却水入口、１１……凸条、１２……
オイル落下通路。
1 and 2 show a conventional engine block, FIG. 1 is a longitudinal sectional view taken along the line B-B in FIG. 2, FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 3 and 4 show an engine block according to an embodiment of this invention, in which FIG. 3 is a vertical sectional view taken along the line D-D in FIG. 4, and FIG. 4 is a cross-sectional view taken along the line C-C in FIG. 3. It is. 1...Cylinder head, 4...Cylinder block, 5...Water jacket, 8...Oil pan, 9...Cooling water inlet, 11...Protrusion, 12...
oil fall passage.
Claims (1)
ド各部を潤滑したのち、シリンダヘツドおよびシ
リンダブロツクのウオータジヤケツト外壁を縦に
貫通するオイル落下通路よりオイルパンに戻るよ
うにしたものにおいて、ウオータジヤケツトへの
冷却水入口部に縦の凸条を突設し、オイル落下通
路をこの凸条内に設けたことを特徴とする４サイ
クルエンジンのエンジンブロツク。 The oil is pumped by an oil pump to lubricate each part of the cylinder head, and then returns to the oil pan through an oil drop passage that vertically penetrates the outer walls of the water jacket of the cylinder head and cylinder block. An engine block for a four-stroke engine, characterized in that a vertical protrusion is provided at the cooling water inlet and an oil falling passage is provided within the protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2292083U JPS59130013U (en) | 1983-02-21 | 1983-02-21 | 4-cycle engine engine block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2292083U JPS59130013U (en) | 1983-02-21 | 1983-02-21 | 4-cycle engine engine block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59130013U JPS59130013U (en) | 1984-08-31 |
| JPS6235845Y2 true JPS6235845Y2 (en) | 1987-09-11 |
Family
ID=30154010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2292083U Granted JPS59130013U (en) | 1983-02-21 | 1983-02-21 | 4-cycle engine engine block |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59130013U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2685837B2 (en) * | 1988-10-11 | 1997-12-03 | 本田技研工業株式会社 | Oil return structure of engine |
-
1983
- 1983-02-21 JP JP2292083U patent/JPS59130013U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59130013U (en) | 1984-08-31 |
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