JPH0734837A - Cylinder lubricating device - Google Patents
Cylinder lubricating deviceInfo
- Publication number
- JPH0734837A JPH0734837A JP20201093A JP20201093A JPH0734837A JP H0734837 A JPH0734837 A JP H0734837A JP 20201093 A JP20201093 A JP 20201093A JP 20201093 A JP20201093 A JP 20201093A JP H0734837 A JPH0734837 A JP H0734837A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- oil
- sliding surface
- cylinder liner
- liner
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
- F01M2001/083—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は往復動型内燃機関、往復
動型圧縮機等におけるシリンダライナの摺動面を潤滑す
るためのシリンダ注油装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder lubrication device for lubricating a sliding surface of a cylinder liner in a reciprocating internal combustion engine, a reciprocating compressor or the like.
【０００２】[0002]
【従来の技術】内燃機関、特に大形ディーゼル機関にお
いては、ピストンのシリンダライナへの焼付きを防止す
るため、シリンダライナの摺動面へシリンダ油を注入す
る注油装置を備えている。2. Description of the Related Art An internal combustion engine, especially a large diesel engine, is provided with an oiling device for injecting cylinder oil into the sliding surface of the cylinder liner in order to prevent the piston from seizing on the cylinder liner.
【０００３】この種シリンダ注油装置の１例が図２に示
されている。図において、01はシリンダライナ、02はピ
ストン、03はシリンダカバー、04はピストン02に嵌装さ
れたピストンリング、05はシリンダカバー03内に形成さ
れた排気通路、06は排気弁である。An example of this type of cylinder lubrication device is shown in FIG. In the figure, 01 is a cylinder liner, 02 is a piston, 03 is a cylinder cover, 04 is a piston ring fitted in the piston 02, 05 is an exhaust passage formed in the cylinder cover 03, and 06 is an exhaust valve.
【０００４】010 はシリンダライナ01の壁内に円周方向
に沿って等間隔を隔てて複数個設けられた注油棒であ
る。この注油棒010 はシリンダライナ01の摺動面014 の
磨耗が最も大きくなる軸方向位置に設置され、注油器(
図示せず) から注油管013 を経て送給されたシリンダ油
012 を注油孔011 を経て摺動面014 に注入する。Reference numeral 010 is an oil-filling rod provided in the wall of the cylinder liner 01 at equal intervals along the circumferential direction. This lubrication rod 010 is installed at the axial position where the sliding surface 014 of the cylinder liner 01 is the most worn, and the lubricator (
Cylinder oil sent from (not shown) via lubrication pipe 013
012 is injected into the sliding surface 014 through the oiling hole 011.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来のシリンダ注油装置においては、次のような問題点が
あった。シリンダ油012 は注油孔011 よりシリンダライ
ナ01の摺動面014 に供給されるが、このシリンダ油012
は周方向には広がり難いため、注油孔011 の上下にはシ
リンダ油012 が潤沢に存在する場合でも、隣接する注油
孔011 の中間付近はシリンダ油が不足し易いため、この
中間付近に発生する焼付きや異常磨耗を起点として機関
の運転が不可能になったり、ピストンリング04やシリン
ダライナ01の交換時期を早める結果となる。However, the conventional cylinder lubrication device described above has the following problems. Cylinder oil 012 is supplied to the sliding surface 014 of the cylinder liner 01 through the oiling hole 011.
Since it is difficult to spread in the circumferential direction, even when there is plenty of cylinder oil 012 above and below the oiling hole 011, the cylinder oil is likely to run short near the middle of the adjacent oiling holes 011. As a result, seizure or abnormal wear may cause the engine to become inoperable, or the piston ring 04 or cylinder liner 01 may be replaced earlier.
【０００6 】本発明は上記に鑑み、シリンダライナの摺
動面の全面に亘ってシリンダ油を均一に分布するように
供給し、局部的なシリンダ油不足に基づく異常磨耗や焼
付きの発生を防止できるシリンダ注油装置を提供するこ
とを目的とする。In view of the above, the present invention supplies the cylinder oil so as to be uniformly distributed over the entire sliding surface of the cylinder liner, and prevents the occurrence of abnormal wear or seizure due to a local lack of cylinder oil. An object of the present invention is to provide a cylinder lubrication device that can be used.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記目的を達
成するために発明されたものであって、その要旨とする
ところは、往復動するピストンが摺動するシリンダライ
ナの摺動面に向けてシリンダ油を扇状に噴射するシリン
ダ油噴射弁を上記シリンダライナの円周方向に沿って間
隔を隔てて複数個設けたことを特徴とするシリンダ注油
装置にある。SUMMARY OF THE INVENTION The present invention has been invented to achieve the above object, and its gist is to provide a sliding surface of a cylinder liner on which a reciprocating piston slides. The cylinder oil injection device is provided with a plurality of cylinder oil injection valves for injecting cylinder oil in a fan shape toward the circumference of the cylinder liner at intervals.
【０００７】[0007]
【作用】本発明は上記構成を具えているため、シリンダ
油はシリンダ油噴射弁からシリンダライナの摺動面に向
けて扇状に噴射されてこの摺動面の全面に亘って均一に
分布する。Since the present invention has the above-mentioned structure, the cylinder oil is sprayed in a fan shape from the cylinder oil injection valve toward the sliding surface of the cylinder liner, and is evenly distributed over the entire sliding surface.
【０００８】[0008]
【実施例】図１には、本発明の１実施例に係る大形ディ
ーゼル機関のシリンダ注油装置が示されている。図にお
いて、１はシリンダライナ、２はピストン、４はピスト
ン２に嵌装されたピストンリング、３はシリンダカバ
ー、５はシリンダカバー３内に形成された排気通路、６
は排気弁、15は掃気ポートである。ピストン２はピスト
ンリング４をシリンダライナ１の摺動面14に摺接させな
がら往復動する。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a cylinder lubrication device for a large diesel engine according to an embodiment of the present invention. In the figure, 1 is a cylinder liner, 2 is a piston, 4 is a piston ring fitted to the piston 2, 3 is a cylinder cover, 5 is an exhaust passage formed in the cylinder cover 3, 6
Is an exhaust valve and 15 is a scavenging port. The piston 2 reciprocates while the piston ring 4 is in sliding contact with the sliding surface 14 of the cylinder liner 1.
【０００９】７はシリンダカバー３に取り付けられたシ
リンダ油噴射弁である。この噴射弁７はシリンダライナ
１の円周方向に沿って等間隔を隔てて複数個設けられ、
これから扇状に噴射されたシリンダ油がシリンダライナ
１の摺動面14のうち最も磨耗し易い部位、即ち、ピスト
ンロークの少なくとも上半分に対応する部位に向かうよ
うにその噴口の向き及び大きさが設定されている。A cylinder oil injection valve 7 is attached to the cylinder cover 3. A plurality of injection valves 7 are provided at equal intervals along the circumferential direction of the cylinder liner 1,
The direction and size of the injection port are set so that the fan-shaped injected cylinder oil will be directed to the most easily worn part of the sliding surface 14 of the cylinder liner 1, that is, the part corresponding to at least the upper half of the piston row. Has been done.
【００１０】このシリンダ油噴射弁７の形式はジャーキ
式燃料噴射装置に適用される自動弁式噴射弁が好適であ
るが、この形式には限定されず、シリンダ油を所定のタ
イミングで噴射させ得る機能を有するものであれば良
い。13は上記各シリンダ油噴射弁７と注油器（図示せ
ず）とを接続する注油管である。The type of the cylinder oil injection valve 7 is preferably an automatic valve type injection valve applied to a jerk type fuel injection device, but it is not limited to this type and the cylinder oil can be injected at a predetermined timing. What has a function may be used. Reference numeral 13 is an oiling pipe that connects each of the cylinder oil injection valves 7 and an oiling device (not shown).
【００１１】しかして、ディーゼル機関の運転時、ピス
トン２が下死点から上昇して圧縮行程に入り、圧縮行程
の前半の時期に、クランク軸に連動されて注油タイミン
グが制御されている注油器（図示せず）からシリンダ油
が注油管13を経てシリンダ油噴射弁７に送給され、その
自動弁を押し開いて同噴射弁７からシリンダライナ１の
摺動面14へ向けて扇状に噴出せしめられる。When the diesel engine is in operation, however, the piston 2 rises from the bottom dead center to enter the compression stroke, and the lubrication timing is controlled in conjunction with the crankshaft during the first half of the compression stroke. Cylinder oil (not shown) is fed to the cylinder oil injection valve 7 through the oil injection pipe 13, pushes the automatic valve open, and ejects from the same injection valve 7 toward the sliding surface 14 of the cylinder liner 1 in a fan shape. Be punished.
【００１２】この場合、シリンダ油噴射弁７はその噴口
から噴射されたシリンダ油がシリンダライナ１の円周方
向に沿って扇状に拡散され、かつ、円周方向に沿って油
膜が途切れる部位が生じないようにその噴射モード、噴
射時期が制御される。In this case, the cylinder oil injection valve 7 has a portion where the cylinder oil injected from the injection port is fan-shaped diffused along the circumferential direction of the cylinder liner 1 and the oil film is interrupted along the circumferential direction. The injection mode and injection timing are controlled so as not to exist.
【００１３】しかして、シリンダライナ１の摺動面14上
にその円周方向に沿って途切れることなく分布したシリ
ンダ油の油膜上をピストンリング４が上昇し、更に、燃
焼行程において、上記油膜上を下降することとなるの
で、シリンダライナ１の摺動面14には常時一定の油膜が
形成されることとなり、ピストンリング４の焼付きや摺
動面14の異常磨耗の発生が防止される。Therefore, the piston ring 4 rises above the oil film of the cylinder oil distributed on the sliding surface 14 of the cylinder liner 1 along its circumferential direction without interruption, and further, in the combustion stroke, above the oil film. Since a constant oil film is always formed on the sliding surface 14 of the cylinder liner 1, seizure of the piston ring 4 and abnormal wear of the sliding surface 14 are prevented.
【００１４】[0014]
【発明の効果】本発明はシリンダライナの摺動面に向け
てシリンダ油を扇状に噴射するシリンダ油噴射弁をシリ
ンダライナの円周方向に沿って間隔を隔てて複数個設け
たため、この噴射弁の噴射タイミング、噴射角、噴射量
等を適宜制御することにより、シリンダライナの摺動面
の円周方向に沿って途切れることなくシリンダ油の油膜
を形成することができる。これにより、ピストンリング
の焼付きや、シリンダライナの摺動面の異常磨耗の発生
を防止することができる。また、シリンダ油が有効に利
用されることとなり、シリンダ油消費率を低減しうる。According to the present invention, a plurality of cylinder oil injection valves for injecting cylinder oil in a fan shape toward the sliding surface of the cylinder liner are provided at intervals along the circumferential direction of the cylinder liner. By appropriately controlling the injection timing, the injection angle, the injection amount, etc., the oil film of the cylinder oil can be formed without interruption along the circumferential direction of the sliding surface of the cylinder liner. As a result, it is possible to prevent seizure of the piston ring and abnormal wear of the sliding surface of the cylinder liner. Further, the cylinder oil is effectively used, and the cylinder oil consumption rate can be reduced.
【図１】本発明の１実施例に係わる大型ディーゼル機関
のシリンダ注油装置を示す断面図である。FIG. 1 is a sectional view showing a cylinder oiling device for a large diesel engine according to an embodiment of the present invention.
【図２】従来の注油装置を示す断面図である。。FIG. 2 is a cross-sectional view showing a conventional oiling device. .
１ シリンダライナ ２ ピストン ３ シリンダカバー ４ ピストンリング ７ シリンダ油噴射弁 14 摺動面 1 Cylinder liner 2 Piston 3 Cylinder cover 4 Piston ring 7 Cylinder oil injection valve 14 Sliding surface
Claims (1)
ライナの摺動面に向けてシリンダ油を扇状に噴射するシ
リンダ油噴射弁を上記シリンダライナの円周方向に沿っ
て間隔を隔てて複数個設けたことを特徴とするシリンダ
注油装置。1. A plurality of cylinder oil injection valves for injecting cylinder oil in a fan shape toward a sliding surface of a cylinder liner on which a reciprocating piston slides at intervals along the circumferential direction of the cylinder liner. Cylinder lubrication device characterized by being provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20201093A JPH0734837A (en) | 1993-07-23 | 1993-07-23 | Cylinder lubricating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20201093A JPH0734837A (en) | 1993-07-23 | 1993-07-23 | Cylinder lubricating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0734837A true JPH0734837A (en) | 1995-02-03 |
Family
ID=16450433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20201093A Withdrawn JPH0734837A (en) | 1993-07-23 | 1993-07-23 | Cylinder lubricating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0734837A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000028194A1 (en) * | 1998-11-05 | 2000-05-18 | Hans Jensen Lubricators A/S | Lubrication system for large diesel engines |
-
1993
- 1993-07-23 JP JP20201093A patent/JPH0734837A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000028194A1 (en) * | 1998-11-05 | 2000-05-18 | Hans Jensen Lubricators A/S | Lubrication system for large diesel engines |
| US6547038B1 (en) | 1998-11-05 | 2003-04-15 | Hans Jensen Lubricators A/S | Lubrication system for large diesel engines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20001003 |