JPS6145310Y2 - - Google Patents
Info
- Publication number
- JPS6145310Y2 JPS6145310Y2 JP14157678U JP14157678U JPS6145310Y2 JP S6145310 Y2 JPS6145310 Y2 JP S6145310Y2 JP 14157678 U JP14157678 U JP 14157678U JP 14157678 U JP14157678 U JP 14157678U JP S6145310 Y2 JPS6145310 Y2 JP S6145310Y2
- Authority
- JP
- Japan
- Prior art keywords
- cooling water
- water passage
- uneven surface
- liner
- holes
- 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 16
- 238000009835 boiling Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
本考案は往復動内燃機関のシリンダライナに関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cylinder liner for a reciprocating internal combustion engine.
従来のこの種のシリンダライナの冷却水通路ａ
の表面は第１図に示すように平滑面であつた。こ
のために熱伝達率が悪かつた。 Cooling water passage a of a conventional cylinder liner of this type
The surface was smooth as shown in FIG. This resulted in poor heat transfer coefficient.
本考案は上記の事情に鑑みなされたものであつ
て、その目的とするところは冷却水通路の表面を
従来のものの平滑面に比べその熱伝達係数が大き
いものにして必要冷却流量及びウオータポンプの
必要馬力を低減し、エンジンの燃料消費量の低減
を計ることにある。 The present invention was developed in view of the above circumstances, and its purpose is to make the surface of the cooling water passage have a larger heat transfer coefficient than the smooth surface of the conventional one, thereby reducing the required cooling flow rate and the water pump. The aim is to reduce the required horsepower and reduce engine fuel consumption.
以下、本考案を第２図以下を参照して説明す
る。図面中１はライナ本体であり、このライナ本
体１に冷却水通路２が形成してある。この冷却水
通路２の表面は多孔質による凹凸面３になされて
いる。 Hereinafter, the present invention will be explained with reference to FIG. 2 and subsequent figures. In the drawings, reference numeral 1 denotes a liner body, and a cooling water passage 2 is formed in this liner body 1. The surface of this cooling water passage 2 is made into an uneven surface 3 made of porous material.
この凹凸面３には多数の孔又はトンネル４が存
在し、そのトンネル４には多数の外部への開口が
ある。 A large number of holes or tunnels 4 are present in this uneven surface 3, and the tunnels 4 have a large number of openings to the outside.
しかして、冷却水通路２に冷却水が流れ凹凸面
３において、孔又はトンネル４が冷却水の沸騰核
を形成するため沸騰が促進され、このため熱伝達
係数は従来のライナーの冷却水通路における平滑
面に比べ格段に良くなる。 As the cooling water flows through the cooling water passage 2 and the holes or tunnels 4 form boiling nuclei of the cooling water on the uneven surface 3, boiling is promoted. Much better than a smooth surface.
本考案は以上詳述したようにライナ本体１に設
けられた冷却水通路２の表面に、冷却水の沸騰を
促進する外部に開口するトンネル４、多数の孔を
有する多孔質の凹凸面４を形成したことを特徴と
する往復動内燃機関のシリンダライナである。 As described in detail above, the present invention includes a tunnel 4 that opens to the outside to promote boiling of the cooling water, and a porous uneven surface 4 having a large number of holes on the surface of the cooling water passage 2 provided in the liner body 1. 1 is a cylinder liner for a reciprocating internal combustion engine, characterized by the following:
従つて冷却水通路２に冷却水が流れ凹凸面３に
おいて、孔またはトンネル４が冷却水の沸騰核を
形成するため沸騰が促進され、このため熱伝達係
数は従来のライナーの冷却水通路における平滑面
に比べ格段に良くなり、このため必要冷却流量及
びウオータポンプの必要馬力が低減できエンジン
の燃料消費量の低減を計ることができる。 Therefore, the cooling water flows through the cooling water passage 2 and the holes or tunnels 4 form boiling nuclei of the cooling water on the uneven surface 3, so boiling is promoted, and therefore the heat transfer coefficient is lower than that of the smooth cooling water passage of a conventional liner. Therefore, the required cooling flow rate and the required horsepower of the water pump can be reduced, and the fuel consumption of the engine can be reduced.
第１図は従来のシリンダライナーの一部省略し
た縦断面図、第２図は本考案一実施例の一部省略
した縦断面図、第３図は第２図部の拡大図であ
る。
１はライナ本体、２は冷却水通路、３は凹凸
面。
FIG. 1 is a partially omitted vertical cross-sectional view of a conventional cylinder liner, FIG. 2 is a partially omitted longitudinal cross-sectional view of an embodiment of the present invention, and FIG. 3 is an enlarged view of the portion shown in FIG. 1 is the liner body, 2 is the cooling water passage, and 3 is the uneven surface.
Claims (1)
に、冷却水の沸騰を促進する外部に開口するトン
ネル４、多数の孔を有する多孔質の凹凸面４を形
成したことを特徴とする往復動内燃機関のシリン
ダライナ。 A reciprocating motion characterized by forming, on the surface of a cooling water passage 2 provided in a liner body 1, a tunnel 4 opening to the outside to promote boiling of the cooling water, and a porous uneven surface 4 having a large number of holes. Cylinder liner for internal combustion engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14157678U JPS6145310Y2 (en) | 1978-10-17 | 1978-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14157678U JPS6145310Y2 (en) | 1978-10-17 | 1978-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5559151U JPS5559151U (en) | 1980-04-22 |
| JPS6145310Y2 true JPS6145310Y2 (en) | 1986-12-19 |
Family
ID=29117517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14157678U Expired JPS6145310Y2 (en) | 1978-10-17 | 1978-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6145310Y2 (en) |
-
1978
- 1978-10-17 JP JP14157678U patent/JPS6145310Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5559151U (en) | 1980-04-22 |
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