JPH0627493B2 - Lubrication system for piston and cylinder liners - Google Patents
Lubrication system for piston and cylinder linersInfo
- Publication number
- JPH0627493B2 JPH0627493B2 JP61023052A JP2305286A JPH0627493B2 JP H0627493 B2 JPH0627493 B2 JP H0627493B2 JP 61023052 A JP61023052 A JP 61023052A JP 2305286 A JP2305286 A JP 2305286A JP H0627493 B2 JPH0627493 B2 JP H0627493B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- cylinder liner
- piston
- cylinder
- cam
- 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
- Lubrication Of Internal Combustion Engines (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は２サイクルディーゼル機関のピストン及びシリ
ンダライナ潤滑装置に関する。The present invention relates to a piston and cylinder liner lubricating device for a two-cycle diesel engine.
２サイクルディーゼル機関における従来のシリンダ潤滑
油注油装置は，注油器のカムに１種類のリフトカーブを
持ち，カム１回転で１回の吐出を行う。この油圧は注油
器に導かれ逆止弁を作動させてシリンダライナに穿設さ
れている小孔からシリンダ油を噴出する。The conventional cylinder lubricating oil lubrication device in a two-cycle diesel engine has one type of lift curve on the cam of the lubricator, and discharges once per one rotation of the cam. This hydraulic pressure is guided to an oiling device to operate a check valve to eject cylinder oil from a small hole formed in the cylinder liner.
従来機関では注油器のカム１回転につき注油器から１回
シリンダ内に注油するが，注油孔がシリンダライナの半
径方向に加工してあることと，もともとピストンとの間
隙は小であるからシリンダ内面の１ケ所にシリンダ油を
吐出する。シリンダライナ内に吐出された油はシリンダ
ライナとピストンの潤滑をスムーズに行わせるためのも
のであるから，シリンダ油はシリンダライナ面に均等に
いきわたることが望ましいが，この点従来装置ではシリ
ンダライナ面内の吐出孔付近にのみ偏って吐出する欠点
があった。In the conventional engine, oil is injected into the cylinder once per revolution of the lubricator cam, but because the lubrication holes are machined in the radial direction of the cylinder liner and the gap with the piston is small originally, the inner surface of the cylinder is small. Cylinder oil is discharged to one location. Since the oil discharged into the cylinder liner is for smooth lubrication of the cylinder liner and piston, it is desirable that the cylinder oil spreads evenly over the cylinder liner surface. However, there is a drawback that the discharge is unevenly distributed only in the vicinity of the discharge holes.
本発明の目的は上記欠点を排除した潤滑装置を提供する
ことであり，その特徴とするところは，２サイクルディ
ーゼル機関のピストン及びシリンダライナの潤滑装置に
おいて，急激なリフト曲線と緩慢なリフト曲線とからな
る２種のリフト曲線を持つカムにより１回転に２回油溝
内に噴出する潤滑油の圧力を交互に変動させて注油する
注油機，シリンダライナ周方向に設けた潤滑油溝を連絡
する周方向の注油孔を備えたことである。An object of the present invention is to provide a lubrication apparatus which eliminates the above-mentioned drawbacks, and is characterized in that in a lubrication apparatus for a piston and a cylinder liner of a two-cycle diesel engine, a steep lift curve and a slow lift curve are provided. A cam with two types of lift curves consisting of 2 times connects the oiling machine that alternately changes the pressure of the lubricating oil ejected into the oil groove twice per revolution, and the lubricating oil groove provided in the circumferential direction of the cylinder liner. That is to say, it was provided with a circumferential lubrication hole.
この場合は，急激なリフトカーブのカムで吐出圧を高く
し，シリンダライナ内面周方向で注油孔よりより遠く
に，他方の緩慢なリフトカーブのカムでは，吐出圧を低
くして吐出孔付近にシリンダ油を吐出するようにし，シ
リンダライナ面に均等に油を吐出する。In this case, increase the discharge pressure with a cam with a sharp lift curve, and move it farther than the lubrication hole in the circumferential direction of the cylinder liner inner surface, and with the cam with a slow lift curve, lower the discharge pressure to near the discharge hole. Cylinder oil is discharged so that oil is evenly discharged onto the cylinder liner surface.
以下図面を参照して本発明による実施例につき説明す
る。Embodiments according to the present invention will be described below with reference to the drawings.
第１図は本発明による１実施例の注油器を示す断面図で
ある。FIG. 1 is a sectional view showing an oiling device according to one embodiment of the present invention.
図において，シリンダ潤滑用のシリンダ油３２を入れた
油タンク３１の中に，エンジンのクランク軸と連動する
カム軸２９を貫通させ，これに急激なリフトのカム曲線
２８と緩慢なリフトのカム曲線３７の２種の曲線を持っ
たカムを取付け，カム面と接触するローラ２６とこれを
支持するレバー２５は支点２７を中心に揺動し，カム曲
線に応じたリフトをプランジャ２２に与える。プランジ
ャ２２はばね２３によってレバー２５に押し付けられ，
その下限は調節ねじ２１で調節される。プランジャ２２
の下降時は，吸入弁１９が開となってフィルタ３０から
吸入管２０を経てシリンダ油３２を吸入し，上昇時は吐
出弁１８が開いてシリンダ油３２を給油管１４を通って
矢印方向へ送り出す。給油管１４は第２図に示すように
接手９を介して給油筒１３と接続しており，その先端部
は第３図に拡大して示すように，ばね５で支持された逆
止弁６を装備し，シリンダライナ１にねじ込まれてい
る。導油孔１６はシリンダライナ１に掘られた円周溝１
５即ち周方向に設けた潤滑油溝に横孔３８即ち周方向の
注油孔を介して連通しており，第５，６図はそのＡ矢視
した場合の展開図である。In the figure, an oil tank 31 containing cylinder oil 32 for cylinder lubrication is passed through a cam shaft 29 interlocking with the crankshaft of the engine, through which a sharp lift cam curve 28 and a slow lift cam curve are drawn. A cam having two kinds of curves 37 is attached, and a roller 26 which comes into contact with the cam surface and a lever 25 which supports the roller 26 swing around a fulcrum 27 to give a lift corresponding to the cam curve to the plunger 22. The plunger 22 is pressed against the lever 25 by the spring 23,
The lower limit is adjusted by the adjusting screw 21. Plunger 22
When descent, the suction valve 19 opens and sucks the cylinder oil 32 from the filter 30 through the suction pipe 20, and when rising, the discharge valve 18 opens and the cylinder oil 32 passes through the oil supply pipe 14 in the direction of the arrow. Send out. The oil supply pipe 14 is connected to the oil supply cylinder 13 via a joint 9 as shown in FIG. 2, and the tip end thereof is, as shown in an enlarged view in FIG. 3, a check valve 6 supported by a spring 5. It is equipped with and is screwed into the cylinder liner 1. The oil guide hole 16 is a circumferential groove 1 dug in the cylinder liner 1.
5, that is, the lubricating oil groove provided in the circumferential direction is communicated with each other through the lateral hole 38, that is, the lubricating oil hole in the circumferential direction, and FIGS. 5 and 6 are development views when the arrow A is viewed.
注油用カムは第４図にその概略形状を示すように，急激
なリフトのカム曲線２８と緩慢なリフトのカム曲線３７
の２種の曲線をもっており，給油管１４へ吐出される油
の圧力はこれらカム曲線に対応して図のように変化す
る。第５図は緩慢なリフト曲線にある時の油滴８の出方
を示し，この場合は油圧が低いので，油は円周溝１５に
タラタラと出て，出口近辺のみを潤滑する。第６図は急
激なリフト曲線にあるときの油滴８の状況であり，油圧
が高いので油は円周溝１５内の遠方までとどく。As shown in FIG. 4, the lubrication cam has a sharp lift cam curve 28 and a slow lift cam curve 37.
There are two types of curves, and the pressure of the oil discharged to the oil supply pipe 14 changes as shown in the figure corresponding to these cam curves. FIG. 5 shows how the oil droplets 8 come out when the lift curve is slow. In this case, since the oil pressure is low, the oil flickers into the circumferential groove 15 and lubricates only the vicinity of the outlet. FIG. 6 shows the situation of the oil droplet 8 when the lift curve is abrupt, and since the hydraulic pressure is high, the oil reaches far inside the circumferential groove 15.
上述の場合には次の効果がある。 In the above case, there are the following effects.
潤滑用の円周溝１５を設け，油噴出圧力を高低切換える
ようにした結果，ピストンとシリンダライナとの潤滑の
範囲が拡がり，シリンダライナの摩耗の減少やピストン
焼付き事故の減少が実現する。As a result of providing the circumferential groove 15 for lubrication and switching the oil ejection pressure between high and low, the range of lubrication between the piston and the cylinder liner is expanded, and wear of the cylinder liner and piston seizure accidents are reduced.
第１図は本発明による１実施例の注油器を示す断面図，
第２図はシリンダライナに給油筒を取付けた状態を示す
断面図，第３図は第２図のシリンダライナ近辺を拡大し
て示す断面図，第４図は注油カムのリフト曲線と対応す
る油圧曲線を示す線図，第５図は円周溝に低圧で注油し
たときの油滴の状態を示す説明図，第６図は円周溝に高
圧で注油したときの油滴の状態を示す説明図である。 １…シリンダライナ，１５…周方向の油溝，２８…急激
なリフト曲線，３７…緩慢なリフト曲線，３８…横孔。FIG. 1 is a sectional view showing an oiler according to one embodiment of the present invention,
FIG. 2 is a sectional view showing a state in which a cylinder is attached to the cylinder liner, FIG. 3 is an enlarged sectional view showing the vicinity of the cylinder liner in FIG. 2, and FIG. 4 is a lift curve of the lubrication cam and corresponding hydraulic pressure. Fig. 5 is a diagram showing a curve, Fig. 5 is an explanatory view showing the state of oil droplets when low pressure oil is applied to the circumferential groove, and Fig. 6 is an explanation showing the state of oil droplets when high pressure oil is applied to the circumferential groove. It is a figure. DESCRIPTION OF SYMBOLS 1 ... Cylinder liner, 15 ... Circumferential oil groove, 28 ... Rapid lift curve, 37 ... Slow lift curve, 38 ... Horizontal hole.
Claims (1)
シリンダライナの潤滑装置において、急激なリフト曲線
と緩慢なリフト曲線とからなる２種のリフト曲線を持つ
カムにより１回転に２回油溝内に噴出する潤滑油の圧力
を交互に変動させて注油する注油機，シリンダライナに
周方向に設けた潤滑油溝に連絡する周方向の注油孔を備
えたことを特徴とするピストン及びシリンダライナの潤
滑装置。1. A lubrication system for a piston and a cylinder liner of a two-cycle diesel engine, wherein a cam having two kinds of lift curves consisting of a rapid lift curve and a slow lift curve ejects into an oil groove twice per revolution. Lubricating device for piston and cylinder liner, characterized by alternately varying the pressure of the lubricating oil to lubricate, and a circumferential lubrication hole communicating with a lubricating oil groove provided in the circumferential direction on the cylinder liner .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61023052A JPH0627493B2 (en) | 1986-02-06 | 1986-02-06 | Lubrication system for piston and cylinder liners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61023052A JPH0627493B2 (en) | 1986-02-06 | 1986-02-06 | Lubrication system for piston and cylinder liners |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62182413A JPS62182413A (en) | 1987-08-10 |
| JPH0627493B2 true JPH0627493B2 (en) | 1994-04-13 |
Family
ID=12099671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61023052A Expired - Lifetime JPH0627493B2 (en) | 1986-02-06 | 1986-02-06 | Lubrication system for piston and cylinder liners |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0627493B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584164A (en) * | 1981-07-01 | 1983-01-11 | Konishiroku Photo Ind Co Ltd | Developing device |
| JPS59159708U (en) * | 1983-04-09 | 1984-10-26 | 三菱重工業株式会社 | Cylinder lubrication device |
-
1986
- 1986-02-06 JP JP61023052A patent/JPH0627493B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62182413A (en) | 1987-08-10 |
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