JPS6118197Y2 - - Google Patents
Info
- Publication number
- JPS6118197Y2 JPS6118197Y2 JP12550878U JP12550878U JPS6118197Y2 JP S6118197 Y2 JPS6118197 Y2 JP S6118197Y2 JP 12550878 U JP12550878 U JP 12550878U JP 12550878 U JP12550878 U JP 12550878U JP S6118197 Y2 JPS6118197 Y2 JP S6118197Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- groove
- straight
- semicircular
- resistant
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000003566 sealing material Substances 0.000 claims description 5
- 238000003754 machining Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は自動車その他の内燃エンジンのシリン
ダ装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to cylinder devices for internal combustion engines such as automobiles and others.
出願人は先にシリンダ及びピストン２の平面形
状を左右両側の半円形部とその中間の直線部とか
ら成る略長円形に形成した内燃エンジンを提案し
た。 The applicant has previously proposed an internal combustion engine in which the planar shape of the cylinder and piston 2 is approximately oval, consisting of semicircular portions on both left and right sides and a straight portion in the middle.
而して、この種エンジンのシリンダは、その半
円形部と、直線部とを夫々別個の工具で別工程に
て加工するため曲率のある半円形部と曲率のない
直線部との加工では、その両者が交わる接点で実
際上完全に同一平面に形成することが困難で、従
つて両者が接する接点に加工段差が生ずる不都合
があつた。 Therefore, in the cylinder of this type of engine, the semicircular part and the straight part are machined in separate processes using separate tools, so when machining the semicircular part with curvature and the straight part without curvature, In practice, it is difficult to form completely on the same plane at the contact point where the two intersect, and therefore there is an inconvenience that a processing step occurs at the contact point where the two contact.
本考案はかゝる不都合を解消することを目的と
したもので、シリンダ１及びピストン２の平面形
状を左右両側の半円形部３，３と、その中間の直
線部４，４とから成る略長円形に形成した内燃エ
ンジンにおいて、前記シリンダ１の半円形部３，
３と直線部４，４とが交わる内壁面部分５に、該
シリンダ１の軸線方向の凹溝６を形成し、該凹溝
６に前記内壁面部分５を平滑面とすべく耐熱、耐
磨耗性のシール材７を充填したことを特徴とす
る。各凹溝６は半円形部３と直線部４との交点９
から直線部４側にかけて形成することが好まし
く、かくすることによつてシリンダ内壁面１０の
加工時半円形部３を加工する工具と直線部４を加
工する工具が該凹溝６に逃げて半円形部３と直線
部４との交叉部に加工段差の発生を防止すると共
に加工後該凹溝６内に充填されるシール材７の表
面７ａを成形容易な平坦面で形成し得る。各凹溝
６は第２図に示した角形溝の他に第３図示のよう
な蟻溝或は第４図示のような丸形溝に形成しても
よい。 The present invention aims to eliminate such inconveniences, and the planar shape of the cylinder 1 and piston 2 is made up of semicircular parts 3, 3 on both the left and right sides, and straight parts 4, 4 in the middle. In an internal combustion engine formed in an oval shape, the semicircular portion 3 of the cylinder 1,
A concave groove 6 in the axial direction of the cylinder 1 is formed in the inner wall surface portion 5 where the straight portions 4 and 3 intersect, and a heat-resistant and abrasion-resistant material is formed in the groove 6 in order to make the inner wall surface portion 5 a smooth surface. It is characterized by being filled with an abrasive sealing material 7. Each groove 6 is located at the intersection 9 of the semicircular part 3 and the straight part 4.
It is preferable to form it from the side of the straight part 4 to the side of the straight part 4. By doing so, the tool for machining the circular part 3 and the tool for machining the straight part 4 of the cylinder inner wall surface 10 escape into the groove 6 and form the half part. It is possible to prevent the occurrence of processing steps at the intersection of the circular portion 3 and the straight portion 4, and to form the surface 7a of the sealing material 7, which is filled into the groove 6 after processing, with a flat surface that is easy to mold. In addition to the rectangular groove shown in FIG. 2, each groove 6 may be formed into a dovetail groove as shown in the third figure or a round groove as shown in the fourth figure.
このように本考案によるときは長円形シリンダ
１の半円形部３と直線部４とが交わる内壁面部分
５にシリンダ１の軸線方向の凹溝６を形成したの
で半円形部３の加工と直線部４の加工とを夫々別
個の工具で行なつても各工具が該凹溝６に逃げて
半円形部３と直線部４とが交わる内壁面部分５に
加工段差が発生せず、而も該凹溝６には内壁面部
分５を平滑面とすべく耐熱、耐磨耗性のシール材
７を充填したものであるからシリンダ内壁の加工
が簡単容易になる等の効果を有する。 In this way, according to the present invention, the groove 6 in the axial direction of the cylinder 1 is formed in the inner wall surface part 5 where the semicircular part 3 and the straight part 4 of the oval cylinder 1 intersect. Even if the machining of the portion 4 is performed using separate tools, each tool escapes into the groove 6 and no machining step is generated on the inner wall surface portion 5 where the semicircular portion 3 and the straight portion 4 intersect. Since the groove 6 is filled with a heat-resistant and abrasion-resistant sealing material 7 to make the inner wall surface portion 5 a smooth surface, the inner wall of the cylinder can be easily machined.
第１図は本考案の実施例を示す截断側面図、第
２図は第１図の−線截断平面図、第３図及び
第４図は夫々第２及び第３実施例の截断平面図で
ある。
１……シリンダ、２……ピストン、３，３……
半円形部、４，４………直線部、５……内壁面部
分、６……凹溝、７……耐熱性耐磨耗性シール
材。
Fig. 1 is a cutaway side view showing an embodiment of the present invention, Fig. 2 is a cutaway plan view taken along the line - - of Fig. 1, and Figs. 3 and 4 are cutaway plan views of the second and third embodiments, respectively. be. 1...Cylinder, 2...Piston, 3,3...
Semicircular portion, 4, 4... Straight portion, 5... Inner wall surface portion, 6... Concave groove, 7... Heat resistant and abrasion resistant sealing material.
Claims (1)
側の半円形部３，３と、その中間の直線部４，４
とから成る略長円形に形成した内燃エンジンにお
いて、前記シリンダ１の半円形部３，３と直線部
４，４とが交わる内壁面部分５に、該シリンダ１
の軸線方向の凹溝６を形成し、該凹溝６に前記内
壁面部分５を平滑面とすべく耐熱、耐磨耗性のシ
ール材７を充填したことを特徴とする内燃エンジ
ンのシリンダ装置。 The planar shape of the cylinder 1 and piston 2 has semicircular parts 3, 3 on both left and right sides, and straight parts 4, 4 in the middle.
In an internal combustion engine formed into a substantially oval shape consisting of
A cylinder device for an internal combustion engine, characterized in that a concave groove 6 is formed in the axial direction, and the concave groove 6 is filled with a heat-resistant and wear-resistant sealing material 7 to make the inner wall surface portion 5 a smooth surface. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12550878U JPS6118197Y2 (en) | 1978-09-14 | 1978-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12550878U JPS6118197Y2 (en) | 1978-09-14 | 1978-09-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5544019U JPS5544019U (en) | 1980-03-22 |
| JPS6118197Y2 true JPS6118197Y2 (en) | 1986-06-03 |
Family
ID=29086474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12550878U Expired JPS6118197Y2 (en) | 1978-09-14 | 1978-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6118197Y2 (en) |
-
1978
- 1978-09-14 JP JP12550878U patent/JPS6118197Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5544019U (en) | 1980-03-22 |
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