JPS5922274Y2 - Piston rings for internal combustion engines - Google Patents
Piston rings for internal combustion enginesInfo
- Publication number
- JPS5922274Y2 JPS5922274Y2 JP4424778U JP4424778U JPS5922274Y2 JP S5922274 Y2 JPS5922274 Y2 JP S5922274Y2 JP 4424778 U JP4424778 U JP 4424778U JP 4424778 U JP4424778 U JP 4424778U JP S5922274 Y2 JPS5922274 Y2 JP S5922274Y2
- Authority
- JP
- Japan
- Prior art keywords
- piston
- flat surface
- internal combustion
- cylinder
- piston ring
- 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
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Description
【考案の詳細な説明】
本考案はエンジンの体積効率を高めるため、シリンダ及
びピストンの横断面をその左右が同一円弧でかつその円
弧の両端を直線又は曲線で結んだ長円形とする内燃エン
ジンに適用される内燃エンジン用ピストンリングに関す
る。[Detailed description of the invention] In order to increase the volumetric efficiency of the engine, this invention is an internal combustion engine in which the cross section of the cylinder and piston is an oval shape with the same circular arc on the left and right sides, and both ends of the arc are connected with a straight line or a curved line. The present invention relates to a piston ring for an internal combustion engine.
この種ピストンリングは、１個の合い口を有する一体形
に形成するときは、そのシリンダ内挿時の張力分布は円
弧部の中心で最大となり、円弧部の両側に沿って順次低
下して円弧部の両端に連る直線或は曲線部で略最小とな
り、このため円弧部においてシリンダとリングとが摩耗
してガス洩れを来たす等の不都合を有していた。When this type of piston ring is formed into an integral shape with one joint, the tension distribution when inserted into the cylinder is maximum at the center of the circular arc part, and gradually decreases along both sides of the circular arc part. It is substantially at its minimum at the straight or curved portions that extend to both ends of the section, and therefore the cylinder and ring wear out at the arcuate portions, resulting in inconveniences such as gas leakage.
本考案はかかる不都合を改良するためになされたもので
あって、これを図示実施例について説明すると１はシリ
ンダ、２はピストン、３はピストンリングを示し、該リ
ング３は、シリンダ１に挿入時の外形をシリンダ１及び
ピストン２の横断面と同様に、左右が同一円弧の円弧部
４，４で、かつ該円弧部４，４の両端を直線で結んだ直
線部５とからなる長円形に形成され、その長軸方向即ち
、円弧部４の一方の中心に合い口６を設けることにより
、一体型に形成されている。The present invention has been made to improve such inconveniences, and to explain this with reference to the illustrated embodiment, 1 is a cylinder, 2 is a piston, 3 is a piston ring, and when the ring 3 is inserted into the cylinder 1, Similar to the cross section of the cylinder 1 and piston 2, the outer shape is an oval shape consisting of circular arc parts 4, 4 having the same arc on the left and right sides, and a straight part 5 connecting both ends of the circular arc parts 4, 4 with a straight line. By providing an abutment 6 in the long axis direction, that is, in the center of one of the circular arc portions 4, it is integrally formed.
然して、その辷り面７は円弧部４の中心で、第４図に示
すようにリングの厚さと同じ幅を有する最大のフラット
面７ａとすると共に、直線部３で第５図に示すように上
端を一定のテーパー面７ｂとすることにより形成される
最小のフラット面７Ｃとし、且つこれら最大フラット面
７ａと最小フラット面７Ｃとを円弧部４の側面で接続す
ることにより、第６図に示すように漸次幅の変化する可
変フラット面７ｄに形成されている。As shown in FIG. 4, the sliding surface 7 is the largest flat surface 7a having the same width as the thickness of the ring, as shown in FIG. As shown in FIG. It is formed on a variable flat surface 7d whose width gradually changes.
このように本考案によるときは、両端を円弧部とし、且
つこれらを直線或は曲線で結ぶことにより長円形に形成
されるピストンリングを一体形としてその合い口を長軸
方向に形成したからリングは装着時の張力を不等に変化
させることなく容易にピストンに装着でき又、その張力
分布の大きな円弧部の辷り面をその張力分布の小さな直
線部の辷り面より大きくシ、而もその円弧部の辷り面は
円弧部の張力変化に応じて、これを可変面としたので、
辷り面の面圧の均等なものが容易に得られ、かくて摩擦
損失の少ないピストンリングが得られると共にその合い
口６をトップリングとセカンドノングとで１８０°ずれ
て設定することにより合い口からのガス洩れを防止でき
る効果を有する。In this way, according to the present invention, the piston ring is integrally formed into an oval shape by having both ends as arcuate parts and connecting these parts with a straight line or a curved line, and the abutment is formed in the longitudinal direction. can be easily attached to the piston without unevenly changing the tension when attached, and the sliding surface of the circular arc part with a large tension distribution is larger than the sliding surface of the straight part with a small tension distribution, and the circular arc The sliding surface of the part is made to be a variable surface according to the change in tension of the arc part, so
A piston ring with uniform surface pressure on the sliding surface can be easily obtained, and thus a piston ring with low friction loss can be obtained.In addition, by setting the abutment 6 of the top ring and the second nong 180 degrees apart from each other, the abutment can be improved. This has the effect of preventing gas leakage from.
図面は本考案の一実施例を示すもので第１図は使用状態
を示す一部欠截図、第２図は第１図ＡＡ線断面図、第３
図はピストンリングの平面図、第４図は、第３図ＣＣ線
断面図、第５図は第３図ＣＣ線断面図、第６図は第３図
ＣＣ線断面図である。
１・・・・・・シリンダ、２・・・・・・ピストン、３
・・・・・・ピストンリング、４・・・・・・円弧部、
５・・・・・・直線部、６・・・・・・合い口、７・・
・・・・辷り面。The drawings show one embodiment of the present invention, and Fig. 1 is a partially cutaway view showing the state of use, Fig. 2 is a sectional view taken along the line AA in Fig. 1, and Fig. 3
4 is a sectional view taken along the line CC in FIG. 3, FIG. 5 is a sectional view taken along the line CC in FIG. 3, and FIG. 6 is a sectional view taken along the line CC in FIG. 3. 1...Cylinder, 2...Piston, 3
... Piston ring, 4 ... Arc part,
5... Straight section, 6... Joint, 7...
・・・・Slip surface.
Claims (1)
かつその円弧の両端を直線或は曲線で結んだ長円形とす
る内燃エンジンにおいて、前記ピストンのピストンリン
グを長軸方向に合い口を有する一体形とし、該ピストン
リングのシリンダとの辷り面を前記左右円弧の中心でリ
ング厚さと同じ幅の最大フラット面に形成すると共に前
記直線或は曲線でテーパー面を介して切欠いた最小フラ
ット面に形成し且つ前記左右の円弧の両側で、前記最大
フラット面と最小フラット面とを接続する可変フラット
面に形成したことを特徴とする内燃エンジン用ピストン
リング。In an internal combustion engine in which the cross section of the cylinder and piston is an oval shape with the same arc on the left and right sides and both ends of the arc are connected by a straight line or a curve, the piston ring of the piston is an integral type having an opening in the longitudinal direction. The sliding surface of the piston ring with the cylinder is formed into a maximum flat surface having the same width as the ring thickness at the center of the left and right circular arcs, and a minimum flat surface cut out by the straight line or curve through a tapered surface. A piston ring for an internal combustion engine, characterized in that a variable flat surface is formed on both sides of the left and right circular arcs to connect the maximum flat surface and the minimum flat surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4424778U JPS5922274Y2 (en) | 1978-04-06 | 1978-04-06 | Piston rings for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4424778U JPS5922274Y2 (en) | 1978-04-06 | 1978-04-06 | Piston rings for internal combustion engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54147307U JPS54147307U (en) | 1979-10-13 |
| JPS5922274Y2 true JPS5922274Y2 (en) | 1984-07-03 |
Family
ID=28920198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4424778U Expired JPS5922274Y2 (en) | 1978-04-06 | 1978-04-06 | Piston rings for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5922274Y2 (en) |
-
1978
- 1978-04-06 JP JP4424778U patent/JPS5922274Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54147307U (en) | 1979-10-13 |
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