JP2518270Y2 - Cylinder liner cooling water passage - Google Patents
Cylinder liner cooling water passageInfo
- Publication number
- JP2518270Y2 JP2518270Y2 JP1992068056U JP6805692U JP2518270Y2 JP 2518270 Y2 JP2518270 Y2 JP 2518270Y2 JP 1992068056 U JP1992068056 U JP 1992068056U JP 6805692 U JP6805692 U JP 6805692U JP 2518270 Y2 JP2518270 Y2 JP 2518270Y2
- Authority
- JP
- Japan
- Prior art keywords
- cooling water
- cylinder liner
- hole
- water passage
- horizontal
- 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 - Fee Related
Links
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、シリンダライナの冷却
水通路に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling water passage for a cylinder liner.
【０００２】[0002]
【従来の技術】以下、従来のシリンダライナの冷却水通
路を図５〜図８を用いて説明する。2. Description of the Related Art A conventional cooling water passage for a cylinder liner will be described below with reference to FIGS.
【０００３】通常、シリンダライナ１のカラー部２は図
示しないシリンダジャケットとシリンダヘッドの間に挟
まれて、ヘッドボルトによって固定されている。又、前
記カラー部２の内面即ち燃焼室壁１０は高温の燃焼ガス
にさらされているので、カラー部２には燃焼圧力や熱応
力による円周方向応力が加わり、クラック等の損傷が発
生することがあった。そこでカラー部２の部材を保護す
るため、該カラー部２を冷却することが従来から行われ
ていた。Usually, the collar portion 2 of the cylinder liner 1 is sandwiched between a cylinder jacket (not shown) and a cylinder head and fixed by head bolts. Further, since the inner surface of the collar portion 2, that is, the combustion chamber wall 10 is exposed to high-temperature combustion gas, circumferential stress due to combustion pressure and thermal stress is applied to the collar portion 2 and damage such as cracks occurs. There was an occasion. Therefore, in order to protect the members of the collar portion 2, the collar portion 2 has conventionally been cooled.
【０００４】図中３はカラー部２内にキリ穴加工によっ
て形成した縦穴、図中４は、前記縦穴３と同様にキリ穴
加工して形成した横穴４であり、該縦穴３と横穴４によ
って冷却水通路７が構成されている。該冷却水通路７は
前記縦穴３の中心線５と横穴４の中心線６とを同一平面
上で交差させるように形成することによって、前記縦穴
３と横穴４とを連通させている。Reference numeral 3 in the drawing is a vertical hole formed in the collar portion 2 by drilling, and reference numeral 4 in the drawing is a horizontal hole 4 formed by drilling similarly to the vertical hole 3 described above. The cooling water passage 7 is configured. The cooling water passage 7 connects the vertical hole 3 and the horizontal hole 4 by forming the center line 5 of the vertical hole 3 and the center line 6 of the horizontal hole 4 so as to intersect each other on the same plane.
【０００５】又、図中８は縦穴３に形成された冷却水入
口部、９は横穴４に形成された冷却水出口部を示してい
る。Further, in the figure, 8 indicates a cooling water inlet formed in the vertical hole 3, and 9 indicates a cooling water outlet formed in the horizontal hole 4.
【０００６】上述したシリンダライナ１の冷却水通路７
によると、冷却水は縦穴３の冷却水入口部８から冷却水
通路７に入って該冷却水通路７内を流通し、この間シリ
ンダライナ１のカラー部２及び燃焼室壁１０を冷却し
て、前記横穴４の冷却水出口部９から前記カラー部２の
外部へと流出していく。The cooling water passage 7 of the cylinder liner 1 described above.
According to the above, the cooling water enters the cooling water passage 7 from the cooling water inlet portion 8 of the vertical hole 3 and flows in the cooling water passage 7, while cooling the collar portion 2 of the cylinder liner 1 and the combustion chamber wall 10, The cooling water outlet portion 9 of the lateral hole 4 flows out to the outside of the collar portion 2.
【０００７】[0007]
【考案が解決しようとする課題】しかしながら、上記従
来のシリンダライナ１の冷却水通路７には、以下のよう
な問題があった。However, the cooling water passage 7 of the conventional cylinder liner 1 has the following problems.
【０００８】即ち、冷却水通路７を形成するために縦穴
３と横穴４の各々の中心線５，６を同一平面上で交差さ
せていたため、縦穴３と横穴４の交差部ａの形状急峻部
では、燃焼圧力や熱応力による円周方向応力によって応
力の集中が起こっていた。又、内燃機関の機関出力増加
による熱応力の増加や内燃機関の低燃費化を図るための
圧力の増加等による機械的応力の増加によって、前記交
差部ａへの応力の集中が更に大きくなる傾向にあり、よ
って前記交差部ａにクラック等の損傷が発生するという
問題があった。That is, since the center lines 5 and 6 of the vertical holes 3 and the horizontal holes 4 are made to intersect on the same plane to form the cooling water passage 7, the steep shape of the intersection a of the vertical holes 3 and the horizontal holes 4 is formed. , Stress concentration occurred due to circumferential pressure due to combustion pressure and thermal stress. In addition, the concentration of stress at the intersection a tends to be further increased due to an increase in thermal stress due to an increase in engine output of the internal combustion engine and an increase in mechanical stress due to an increase in pressure for achieving low fuel consumption of the internal combustion engine. Therefore, there is a problem that damage such as cracks occurs at the intersection a.
【０００９】本考案は、上述の実情に鑑み、応力の集中
を低減してクラック等の損傷を防止し得るようにしたシ
リンダライナの冷却水通路を提供することを目的とする
ものである。In view of the above situation, it is an object of the present invention to provide a cooling water passage for a cylinder liner in which stress concentration is reduced and damage such as cracks can be prevented.
【００１０】[0010]
【課題を解決するための手段】本考案は、シリンダライ
ナのカラー部に縦穴と横穴とを交差させて成るシリンダ
ライナの冷却水通路において、前記縦穴の中心線と前記
横穴の中心線とを水平方向に所要距離ずらして交差させ
て前記縦穴と前記横穴とを連通したことを特徴とするシ
リンダライナの冷却水通路に係るものである。According to the present invention, in a cooling water passage of a cylinder liner formed by intersecting a vertical hole and a horizontal hole in a collar portion of the cylinder liner, the center line of the vertical hole and the center line of the horizontal hole are made horizontal. The cooling water passage of the cylinder liner is characterized in that the vertical hole and the horizontal hole are communicated with each other by shifting a required distance in a direction and intersecting each other.
【００１１】[0011]
【作用】縦穴の中心線と横穴の中心線とを水平方向に所
要距離ずらして交差させて縦穴と横穴とを連通させてい
るので、燃焼圧力や熱応力による円周方向応力が発生し
たとしても、縦穴と横穴との交差部に形状急峻部が無い
ので応力の集中が低減する。従って交差部にクラック等
の損傷が生じにくくなる。[Operation] Since the vertical hole and the horizontal hole are made to communicate with each other by horizontally shifting the center line of the vertical hole and the center line of the horizontal hole by shifting the required distance in the horizontal direction so that the vertical hole and the horizontal hole communicate with each other, even if circumferential pressure due to combustion pressure or thermal stress occurs Since there is no sharp portion at the intersection of the vertical hole and the horizontal hole, the concentration of stress is reduced. Therefore, damage such as cracks is less likely to occur at the intersection.
【００１２】[0012]
【実施例】以下、本考案の実施例を図面に基いて説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】図１〜図４は、本考案の一実施例を示すも
ので、図中、図５〜図８に示したものと同一の構成部分
については同一の符号を付すことによって説明を省略
し、以下、本考案に特有の構成についてのみ説明する。FIGS. 1 to 4 show an embodiment of the present invention. In the drawings, the same components as those shown in FIGS. 5 to 8 are designated by the same reference numerals and their description is omitted. However, only the configuration unique to the present invention will be described below.
【００１４】即ち、本考案では、縦穴３の中心線５と横
穴４の中心線６とを水平方向に所要距離Ｌずらして交差
させ、前記縦穴３と横穴４とのオーバーラップ部ｏにお
いて縦穴３と横穴４とを連通させることにより、シリン
ダライナ１のカラー部２、燃焼室壁１０を冷却するため
の冷却水が流通する冷却水通路１１を形成している。That is, in the present invention, the center line 5 of the vertical hole 3 and the center line 6 of the horizontal hole 4 are crossed with each other by shifting the required distance L in the horizontal direction, and the vertical hole 3 is formed at the overlapping portion o of the vertical hole 3 and the horizontal hole 4. And the lateral hole 4 communicate with each other to form a cooling water passage 11 through which cooling water for cooling the collar portion 2 of the cylinder liner 1 and the combustion chamber wall 10 flows.
【００１５】上述した如く、縦穴３の中心線５と横穴４
の中心線６とを、水平方向に所要距離Ｌずらして交差さ
せて、縦穴３と横穴４とを連通させているので、燃焼圧
力や熱応力による円周方向応力が発生したとしても、交
差部に形状急峻部が形成されないことにより、縦穴３と
横穴４との交差部ｂへの応力の集中が低減される。As described above, the center line 5 of the vertical hole 3 and the horizontal hole 4
Since the vertical hole 3 and the horizontal hole 4 are made to communicate with each other by intersecting the center line 6 of the above with the required distance L in the horizontal direction, even if circumferential pressure due to combustion pressure or thermal stress occurs, the intersection Since no sharp-edged portion is formed at, the stress concentration at the intersection b between the vertical hole 3 and the horizontal hole 4 is reduced.
【００１６】従って交差部ｂにクラック等の損傷が生じ
にくくなると共に、シリンダライナ１のカラー部２、燃
焼室壁１０はより大きな燃焼圧力や熱応力に耐え得るこ
とができる。Therefore, damage such as cracks is less likely to occur at the intersection b, and the collar portion 2 of the cylinder liner 1 and the combustion chamber wall 10 can withstand greater combustion pressure and thermal stress.
【００１７】尚、本考案は、上述の実施例にのみ限定さ
れるものではなく、本考案の要旨を逸脱しない範囲内に
おいて種々変更を加え得ることは勿論である。It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the scope of the present invention.
【００１８】[0018]
【考案の効果】以上説明したように、本考案のシリンダ
ライナの冷却水通路によれば、縦穴の中心線と横穴の中
心線とを、水平方向に所要距離ずらして交差させて、縦
穴と横穴とを連通させているので、交差部に形状急峻部
が形成されず、よって燃焼圧力や熱応力による円周方向
応力が発生したとしても、縦穴と横穴との交差部への応
力の集中を大幅に低減する事ができるので、前記縦穴と
横穴との交差部にクラック等の損傷が生じにくくなると
共に、シリンダライナはより大きな燃焼圧力や熱応力に
耐え得ることができるという優れた効果を奏し得る。As described above, according to the cooling water passage of the cylinder liner of the present invention, the center line of the vertical hole and the center line of the horizontal hole are made to intersect each other while being horizontally displaced by a required distance, and the vertical hole and the horizontal hole are crossed. Since there is no sharp-edged portion formed at the intersection, and even if circumferential stress due to combustion pressure or thermal stress occurs, the concentration of stress at the intersection of the vertical hole and the horizontal hole is greatly increased. Since it can be reduced to, the damage such as cracks is less likely to occur at the intersection of the vertical hole and the horizontal hole, and the cylinder liner can exert an excellent effect that it can withstand a larger combustion pressure and thermal stress. .
【図１】本考案の一実施例の縦断面図である。FIG. 1 is a longitudinal sectional view of one embodiment of the present invention.
【図２】図１のＩＩ部拡大断面図である。FIG. 2 is an enlarged cross-sectional view of a II part in FIG.
【図３】図２のＩＩＩ−ＩＩＩ方向断面図である。3 is a sectional view taken along line III-III in FIG.
【図４】図２のＩＶ方向矢視図である。FIG. 4 is a view on arrow IV in FIG.
【図５】従来のシリンダライナの縦断面図である。FIG. 5 is a longitudinal sectional view of a conventional cylinder liner.
【図６】図５のＶＩ部拡大断面図である。6 is an enlarged sectional view of a VI portion of FIG.
【図７】図６のＶＩＩ−ＶＩＩ方向断面図である。7 is a sectional view taken along line VII-VII in FIG.
【図８】図６のＶＩＩＩ方向矢視図である。8 is a view on arrow VIII in FIG.
１ シリンダライナ ２ カラー部 ３ 縦穴 ４ 横穴 ５ 縦穴３の中心線 ６ 横穴４の中心線 １１ 冷却水通路 Ｌ 所要距離 1 Cylinder Liner 2 Collar 3 Vertical Hole 4 Horizontal Hole 5 Center Line of Vertical Hole 6 Center Line of Horizontal Hole 4 11 Cooling Water Passage L Required Distance
Claims (1)
とを交差させて成るシリンダライナの冷却水通路におい
て、前記縦穴の中心線と前記横穴の中心線とを水平方向
に所要距離ずらして交差させて前記縦穴と前記横穴とを
連通したことを特徴とするシリンダライナの冷却水通
路。1. In a cooling water passage of a cylinder liner formed by intersecting a vertical hole and a horizontal hole in a collar portion of the cylinder liner, the center line of the vertical hole and the center line of the horizontal hole are made to intersect each other with a horizontal shift of a required distance. A cooling water passage for a cylinder liner, characterized in that the vertical hole and the horizontal hole are communicated with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992068056U JP2518270Y2 (en) | 1992-09-03 | 1992-09-03 | Cylinder liner cooling water passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992068056U JP2518270Y2 (en) | 1992-09-03 | 1992-09-03 | Cylinder liner cooling water passage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0625516U JPH0625516U (en) | 1994-04-08 |
| JP2518270Y2 true JP2518270Y2 (en) | 1996-11-27 |
Family
ID=13362747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992068056U Expired - Fee Related JP2518270Y2 (en) | 1992-09-03 | 1992-09-03 | Cylinder liner cooling water passage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2518270Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6984477B2 (en) * | 2018-02-15 | 2021-12-22 | トヨタ自動車株式会社 | Cylinder block |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49120036A (en) * | 1973-03-26 | 1974-11-16 | ||
| JPS5115745A (en) * | 1974-07-29 | 1976-02-07 | Mitsubishi Heavy Ind Ltd | SHIRINDARAINAFURANJIBUNO REIKYAKUKOZO |
| JPS575511A (en) * | 1980-06-12 | 1982-01-12 | Kawasaki Heavy Ind Ltd | Cylinder liner cooling process |
| JPS62253945A (en) * | 1986-03-31 | 1987-11-05 | Tech Res Assoc Highly Reliab Marine Propul Plant | Cylinder cooling structure of liquid-cooling internal combustion engine |
-
1992
- 1992-09-03 JP JP1992068056U patent/JP2518270Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0625516U (en) | 1994-04-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |