JP3439110B2 - Reciprocating engine cylinder lubrication system - Google Patents
Reciprocating engine cylinder lubrication systemInfo
- Publication number
- JP3439110B2 JP3439110B2 JP05501998A JP5501998A JP3439110B2 JP 3439110 B2 JP3439110 B2 JP 3439110B2 JP 05501998 A JP05501998 A JP 05501998A JP 5501998 A JP5501998 A JP 5501998A JP 3439110 B2 JP3439110 B2 JP 3439110B2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder liner
- lubricating oil
- cylinder
- lubrication
- rod
- 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 - Lifetime
Links
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、シリンダ注油を行
なう往復動機関、特に大型２サイクルディーゼル機関に
おけるシリンダ注油装置に関する。
【０００２】
【従来の技術】図４はシリンダ注油を行なう大型２サイ
クルディーゼル機関における、シリンダライナの注油棒
取付部近傍の要部断面図である。
【０００３】図４において、１はシリンダライナであ
り、同シリンダライナ１には、その円周方向に沿って複
数個のシリンダ注油棒２が取付けられている。同注油棒
２は、シリンダライナ１の内面４に向かって開口し、シ
リンダ注油器（図示省略）から圧送された潤滑油をシリ
ンダライナ内面４に供給し、ピストンリング（図示省
略）と摺接する上記内面４を潤滑するようになってい
る。
【０００４】図５〜図７には上記大型ディーゼル機関用
シリンダライナの注油装置の要部が示され、図５は図４
のＡ−Ａ線断面図、図６は注油棒の先端部の外観図、図
７は図５に対応する作用説明図である。
【０００５】図５において、上記注油棒２は、その先端
縁がシリンダライナ１の内面４から僅かにライナ内部に
引き込まれるように取付けられ、上記内面４に摺接する
ピストンリング（図示省略）との干渉を避けており、ま
た潤滑油の通路穴つまり注油穴２ａは上記内面４にほぼ
直角方向に開口されている。
【０００６】
【発明が解決しようとする課題】上記ディーゼル機関の
運転時において、注油棒２の注油穴２ａからシリンダラ
イナ１の内面４に供給される潤滑油は、図７に示される
ように、シリンダライナの内面４から盛り上がるように
して内面４に吐出される。
【０００７】このため、上記従来のものにおいては、こ
の盛り上がった潤滑油の一部がシリンダライナ１内部の
掃気流６によって吹き飛ばされて潤滑油の飛沫７となっ
てシリンダライナ内部に飛散し、シリンダライナ内面４
の潤滑に供用されず、燃焼等によって消費され、潤滑油
消費量増大の一因となる、という問題点がある。
【０００８】本発明の目的は、シリンダライナ内面に吐
出された潤滑油が掃気流等のシリンダライナ内部の気流
に吹き飛ばされるのを阻止して、潤滑油をシリンダ潤滑
に効率的に供用して潤滑油消費率を低減できる往復動機
関のシリンダ注油装置を提供することにある。
【０００９】
【課題を解決するための手段】本発明は上記問題点を解
決するもので、その要旨とする手段は、シリンダライナ
に取付けられて同ライナの内面に開口する注油棒から潤
滑油を吐出して上記内面を潤滑するようにした往復動機
関において、上記シリンダライナは、潤滑油が円周方向
及び軸方向に万遍なく流れるように、上記注油棒の開口
部を中央部に配してその周囲を円弧状断面として、上記
内面から所定深さ陥没された陥没部が形成されてなると
ともに、上記注油棒は、上記陥没部内において同陥没部
の壁面に沿う方向に潤滑油を吐出させる吐出穴が設けら
れてなることを特徴とする往復動機関のシリンダ注油装
置にある。
【００１０】上記手段によれば、注油棒の吐出口から吐
出されたシリンダ潤滑油は、同注油棒の開口部を中央部
に配してその周囲を円弧状断面としたことにより、シリ
ンダ内の掃気流の影響を受けることが殆ど無い陥没部内
に流出して、陥没部の内壁に沿う方向に盛り上がるよう
に拡げられた後、シリンダライナ内面に流動し、その円
周方向及び軸方向に万遍なく流れて前記シリンダライナ
内面に拡散される。
【００１１】従って、上記手段によれば、注油棒からシ
リンダライナ内面に吐出された潤滑油が掃気流により吹
き飛ばされて燃焼等によって消費されることが無く、シ
リンダ内面に万遍なく拡散され、従来のものよりも有効
にシリンダ潤滑に供される。
【００１２】
【発明の実施の形態】以下図１〜図３及び図４を参照し
て本発明の実施形態につき詳細に説明する。図４は本発
明が適用されるシリンダライナ及び注油棒の取付態様を
示す要部縦断面図である。図４において、１はシリンダ
ライナであり、同シリンダライナ１には、その円周方向
に沿って複数個の注油棒２が取付けられている。同注油
棒２は、シリンダライナ１の内部に開口し、シリンダ注
油器（図示省略）から圧送された潤滑油をシリンダライ
ナ内面４に供給し、ピストンリング（図示省略）と摺接
する上記内面４を潤滑するようになっている。
【００１３】以上の構成は従来のものと同様である。本
発明の実施形態ではシリンダライナ１の内面及び注油棒
２を改良している。
【００１４】図１〜図３は本発明の実施形態に係るシリ
ンダライナの注油棒取付部及び注油棒の詳細を示し、図
１は図４のＡ−Ａ線断面に相当する図、図２は図１に相
当する作用説明図、図３は注油棒先端部の要部斜視図で
ある。図１において、２はシリンダライナ１の取付穴１
ａに円周方向複数個（等間隔が好ましい）取付けられた
注油棒である。
【００１５】上記シリンダライナ１には、上記注油棒２
の取付部の周囲の内面４を所定深さに亘り円弧断面状に
陥没させた陥没部８が形成され、上記陥没部８のほぼ中
央部に上記注油棒２が取付けられている。上記注油棒２
は、図２に示されるように、その先端部を有底に形成
し、半径方向にシリンダ油を吐出させるための吐出穴５
が少なくとも２個穿設されている。
【００１６】そして上記注油棒２は、これに設けられた
吐出穴５がシリンダライナ１の内面４の円周方向に向く
ように、同シリンダライナ１の取付穴１ａに固定され
る。この場合、上記注油棒２は、上記吐出穴５が上記陥
没部８内に開口するように、かつ先端面がシリンダライ
ナ１の内面４よりも突出しないように取付けられてい
る。
【００１７】上記のように構成されたシリンダライナ及
び注油棒を備えたディーゼル機関の運転時において、注
油器（図示省略）から圧送された潤滑油１０は、上記注
油棒２の先端の吐出穴５からこれの向きである内面４の
円周方向に吐出される。この場合、上記潤滑油１０は、
図３に示されるように、先ず上記陥没部８内に吐出さ
れ、同陥没部８の内壁面の方向に盛り上がるようにして
同内壁面に沿って流れた後、シリンダライナ内面４に至
り、同内面４に沿って円周方向及び軸方向に万遍なく流
れて、内面４を潤滑する。
【００１８】従って、この実施形態によれば、注油棒２
からシリンダライナ内面４に供給される潤滑油は掃気流
６（図７参照）の流動が殆ど無い陥没部８内に流出して
陥没部８内で拡げられた後、シリンダライナ内面４に流
動するので、従来のもののように掃気流６により吹き飛
ばされることがなく、万遍なくシリンダライナ内面４に
沿って拡散される。これにより、従来のものよりも潤滑
油が有効にシリンダライナ内面４の潤滑に供用される。
【００１９】
【発明の効果】本発明は以上のように構成されており、
本発明によれば、シリンダライナ内面に注油棒の開口部
を中央部に配してその周囲を円弧状断面とした陥没部を
設けるとともに、注油棒の端部の吐出穴から陥没部の壁
面に沿うように潤滑油を吐出するように構成したので、
注油棒の吐出穴から吐出された潤滑油は、シリンダ内の
掃気流の影響を受けることが殆ど無く陥没部の壁面に沿
って拡げられた後シリンダライナ内面に流動し拡散され
ることとなり、従来のもののように掃気流により吹き飛
ばされ、燃焼等により消費されることはない。従って、
潤滑油はシリンダライナ内面に万遍なく拡散されて、有
効にシリンダ潤滑に供用されることとなり、潤滑油消費
率が低減される。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reciprocating engine for lubricating cylinders, and more particularly to a cylinder lubricating apparatus for a large two-stroke diesel engine. 2. Description of the Related Art FIG. 4 is a cross-sectional view of a main part in the vicinity of a lubrication rod mounting portion of a cylinder liner in a large two-stroke diesel engine for lubricating a cylinder. In FIG. 4, reference numeral 1 denotes a cylinder liner, and a plurality of cylinder lubrication rods 2 are attached to the cylinder liner 1 along the circumferential direction. The lubrication rod 2 opens toward the inner surface 4 of the cylinder liner 1, supplies the lubricating oil fed from a cylinder lubricator (not shown) to the cylinder liner inner surface 4, and comes into sliding contact with a piston ring (not shown). The inner surface 4 is lubricated. FIGS. 5 to 7 show the essential parts of a lubricating device for the cylinder liner for a large diesel engine. FIG.
6 is an external view of the tip of the lubrication rod, and FIG. 7 is an operation explanatory view corresponding to FIG. In FIG. 5, the lubricating rod 2 is mounted so that its leading edge is slightly drawn into the liner from the inner surface 4 of the cylinder liner 1, and is connected to a piston ring (not shown) that slides on the inner surface 4. The interference is avoided, and the passage hole for lubricating oil, that is, the lubrication hole 2a is opened substantially perpendicularly to the inner surface 4. [0006] During the operation of the diesel engine, the lubricating oil supplied from the lubrication hole 2a of the lubrication rod 2 to the inner surface 4 of the cylinder liner 1 is, as shown in FIG. The liquid is discharged to the inner surface 4 so as to rise from the inner surface 4 of the cylinder liner. For this reason, in the above-mentioned conventional type, a part of the raised lubricating oil is blown off by the scavenging flow 6 inside the cylinder liner 1 to become lubricating oil droplets 7 and scattered inside the cylinder liner. Liner inner surface 4
Is not used for lubrication, but is consumed by combustion or the like, which causes an increase in consumption of lubricating oil. SUMMARY OF THE INVENTION It is an object of the present invention to prevent lubricating oil discharged to the inner surface of a cylinder liner from being blown off by an air flow inside the cylinder liner such as a scavenging flow, and to efficiently use the lubricating oil for cylinder lubrication. An object of the present invention is to provide a cylinder lubrication device for a reciprocating engine that can reduce the oil consumption rate. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a gist of the invention is to supply lubricating oil from a lubrication rod attached to a cylinder liner and opened on the inner surface of the liner. In a reciprocating engine that discharges and lubricates the inner surface, the cylinder liner is arranged so that the lubricating oil
And as flow axially evenly, around the its by arranging the opening of the oil feed rod to the central portion as an arc-shaped cross section, together with the recess which is recessed a predetermined depth from the inner surface is formed The lubrication rod is provided with a discharge hole for discharging lubricating oil in a direction along a wall surface of the depression within the depression, and is a cylinder lubrication device for a reciprocating engine. [0010] According to the above means, the cylinder lubricating oil discharged from the discharge port of the lubrication rod moves the opening of the lubrication rod to the central portion.
And the surrounding area is formed in an arc-shaped cross section, so that it flows out into the depression which is hardly affected by the scavenging flow in the cylinder, and is expanded so as to rise in the direction along the inner wall of the depression. to flow into the cylinder liner inner surface, the circle
The fluid flows evenly in the circumferential direction and the axial direction and is diffused into the inner surface of the cylinder liner . Therefore, according to the above-described means, the lubricating oil discharged from the lubrication rod to the inner surface of the cylinder liner is not blown off by the scavenging flow and consumed by combustion or the like, but is diffused uniformly to the inner surface of the cylinder. Is more effective for cylinder lubrication than that of DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. FIG. 4 is a longitudinal sectional view of a main part showing a mounting mode of a cylinder liner and a lubrication rod to which the present invention is applied. In FIG. 4, reference numeral 1 denotes a cylinder liner, and a plurality of lubrication rods 2 are attached to the cylinder liner 1 along the circumferential direction. The lubrication rod 2 is opened inside the cylinder liner 1 to supply the lubricating oil pressure-fed from a cylinder lubricator (not shown) to the cylinder liner inner surface 4 and slide the lubricating oil on the piston ring (not shown). It is designed to be lubricated. The above configuration is the same as the conventional one. In the embodiment of the present invention, the inner surface of the cylinder liner 1 and the lubrication rod 2 are improved. 1 to 3 show details of a lubrication rod mounting portion and a lubrication rod of a cylinder liner according to an embodiment of the present invention. FIG. 1 is a view corresponding to a cross section taken along line AA of FIG. FIG. 3 is an operation explanatory view corresponding to FIG. 1, and FIG. In FIG. 1, reference numeral 2 denotes a mounting hole 1 of a cylinder liner 1.
The lubrication rod is attached to a plurality in the circumferential direction (preferably at equal intervals). The cylinder liner 1 includes the lubrication rod 2
A concave portion 8 is formed by depressing the inner surface 4 around the mounting portion into a circular cross section over a predetermined depth, and the lubrication rod 2 is mounted substantially at the center of the concave portion 8. The above lubrication rod 2
As shown in FIG. 2, a discharge hole 5 for forming a tip end portion with a bottom and discharging cylinder oil in a radial direction is provided.
At least two are provided. The lubrication rod 2 is fixed to the mounting hole 1a of the cylinder liner 1 so that the discharge hole 5 provided in the rod 2 faces the circumferential direction of the inner surface 4 of the cylinder liner 1. In this case, the lubrication rod 2 is attached so that the discharge hole 5 opens into the depression 8 and the tip surface does not protrude from the inner surface 4 of the cylinder liner 1. During operation of the diesel engine having the above-configured cylinder liner and lubrication rod, the lubricating oil 10 pressure-fed from the lubricator (not shown) is supplied to the discharge hole 5 at the tip of the lubrication rod 2. Is discharged in the circumferential direction of the inner surface 4 which is the direction of this. In this case, the lubricating oil 10
As shown in FIG. 3, first, the liquid is discharged into the depression 8 and flows along the inner wall surface so as to rise in the direction of the inner wall surface of the depression 8 before reaching the cylinder liner inner surface 4. It flows evenly in the circumferential and axial directions along the inner surface 4 to lubricate the inner surface 4. Therefore, according to this embodiment, the lubrication rod 2
The lubricating oil supplied to the inner surface 4 of the cylinder liner flows out into the recess 8 where the scavenging flow 6 (see FIG. 7) hardly flows, spreads in the recess 8, and then flows to the inner surface 4 of the cylinder liner. Therefore, the gas is not blown off by the scavenging flow 6 as in the conventional case, but is diffused uniformly along the inner surface 4 of the cylinder liner. As a result, the lubricating oil is more effectively used for lubricating the inner surface 4 of the cylinder liner than the conventional one. The present invention is configured as described above.
According to the present invention, the opening of the lubrication rod is provided on the inner surface of the cylinder liner.
In addition to providing a recessed part with a circular arc cross section around the center part, and configured to discharge lubricating oil along the wall of the recessed part from the discharge hole at the end of the lubrication rod,
Lubricating oil discharged from the discharge port of the lubrication bar, in the cylinder
It is almost unaffected by the scavenging flow and is spread along the wall of the depressed portion, then flows and diffuses into the inner surface of the cylinder liner, and is blown away by the scavenging flow and consumed by combustion etc. as in the conventional case Never. Therefore,
The lubricating oil is evenly diffused into the inner surface of the cylinder liner, and is effectively used for cylinder lubrication, thereby reducing the lubricating oil consumption rate.
【図面の簡単な説明】
【図１】本発明の実施形態に係るシリンダライナの注油
棒取付部を示す、図４のＡ−Ａ線断面に相当する図。
【図２】上記実施形態における注油棒先端部の斜視図。
【図３】上記実施形態における作用説明図。
【図４】シリンダライナ上部の断面図。
【図５】従来例を示す図１応当図。
【図６】従来例を示す図２応当図
【図７】従来例の作用説明図
【符号の説明】
１ シリンダライナ
２ シリンダ注油棒
４ 内面
５ 吐出穴
８ 壁面
１０ シリンダ油BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view corresponding to a cross section taken along line AA of FIG. 4, showing a lubrication rod mounting portion of a cylinder liner according to an embodiment of the present invention. FIG. 2 is a perspective view of a tip of a lubrication rod in the embodiment. FIG. 3 is an operation explanatory view in the embodiment. FIG. 4 is a sectional view of an upper portion of a cylinder liner. FIG. 5 is an equivalent view of FIG. 1 showing a conventional example. FIG. 6 is an equivalent view of FIG. 2 showing a conventional example. FIG. 7 is an operation explanatory view of a conventional example. [Description of References] 1 Cylinder liner 2 Cylinder lubrication rod 4 Inner surface 5 Discharge hole 8 Wall surface 10 Cylinder oil
Claims (1)
の内面に開口する注油棒から潤滑油を吐出して上記内面
を潤滑するようにした往復動機関において、上記シリン
ダライナは、潤滑油が円周方向及び軸方向に万遍なく流
れるように、上記注油棒の開口部を中央部に配してその
周囲を円弧状断面として、上記内面から所定深さ陥没さ
れた陥没部が形成されてなるとともに、上記注油棒は、
上記陥没部内において同陥没部の壁面に沿う方向に潤滑
油を吐出させる吐出穴が設けられてなることを特徴とす
る往復動機関のシリンダ注油装置。(57) [Claim 1] A reciprocating engine which is attached to a cylinder liner and discharges lubricating oil from an oiling rod opened to the inner surface of the liner to lubricate the inner surface. The cylinder liner allows the lubricating oil to flow evenly in the circumferential and axial directions.
As the periphery of that by arranging the opening of the oil feed rod to the central portion as an arc-shaped cross section, together with the recess which is recessed a predetermined depth from the inner surface is formed, the lubrication bar,
A cylinder lubricating device for a reciprocating engine, characterized in that a discharge hole for discharging lubricating oil is provided in the recessed portion in a direction along a wall surface of the recessed portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05501998A JP3439110B2 (en) | 1998-03-06 | 1998-03-06 | Reciprocating engine cylinder lubrication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05501998A JP3439110B2 (en) | 1998-03-06 | 1998-03-06 | Reciprocating engine cylinder lubrication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11257037A JPH11257037A (en) | 1999-09-21 |
| JP3439110B2 true JP3439110B2 (en) | 2003-08-25 |
Family
ID=12986967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05501998A Expired - Lifetime JP3439110B2 (en) | 1998-03-06 | 1998-03-06 | Reciprocating engine cylinder lubrication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3439110B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004019630A1 (en) * | 2004-04-22 | 2005-11-17 | Wacker Construction Equipment Ag | Oil supply for an internal combustion engine |
| JP5200203B2 (en) * | 2008-07-24 | 2013-06-05 | Ｊｘ日鉱日石シッピング株式会社 | Pressure wave oil feeding type cylinder lubricator |
| JP2022072289A (en) * | 2020-10-29 | 2022-05-17 | 株式会社ジャパンエンジンコーポレーション | Cylinder liner and marine internal combustion engine |
-
1998
- 1998-03-06 JP JP05501998A patent/JP3439110B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11257037A (en) | 1999-09-21 |
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