JPS61192546U - - Google Patents
Info
- Publication number
- JPS61192546U JPS61192546U JP7753385U JP7753385U JPS61192546U JP S61192546 U JPS61192546 U JP S61192546U JP 7753385 U JP7753385 U JP 7753385U JP 7753385 U JP7753385 U JP 7753385U JP S61192546 U JPS61192546 U JP S61192546U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- pin boss
- combustion engine
- internal combustion
- engine according
- 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.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 claims 7
- 229910000838 Al alloy Inorganic materials 0.000 claims 2
- 238000005242 forging Methods 0.000 claims 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Description
図面はこの考案の一実施例を示すもので、第１
図はピストンの縦断面図、第２図はその一部を截
断して示すピストンの底面図である。
４ａ…下側半部、４ｂ…上側半部。
The drawing shows one embodiment of this invention.
The figure is a vertical sectional view of the piston, and FIG. 2 is a partially cutaway bottom view of the piston. 4a...lower half, 4b...upper half.
Claims (1)
形成する頂部とを有し、円筒部の内壁に円筒部軸
芯と直交する方向に配置されたピストンピンボス
を設けると共に、前記ピストンピンボスの内端面
の下側半部を上側半部に比して短小に形成してな
る内燃機関のピストン。 (2) 円筒部、頂部およびピストンピンボスはア
ルミニウム合金によつて一体的に鋳造されている
実用新案登録請求の範囲第１項記載の内燃機関の
ピストン。 (3) 円筒部、頂部およびピストンピンボスはア
ルミニウム合金を鍛造して一体的に形成してある
実用新案登録請求の範囲第１項記載の内燃機関の
ピストン。 (4) 前記ピストンピンボスの内端面の下側半部
は上側半部に比して約１〜５mm程度短小に形成し
てなる実用新案登録請求の範囲第１項記載の内燃
機関のピストン。 (5) ピストンピンボスの内端面の上側半部には
比較的大きな外側へ突形の円弧状面取りが施して
ある実用新案登録請求の範囲第１項記載の内燃機
関のピストン。 (5) ピストンピンボスの内端面の上側半部には
上側半部との段差の大きさと略等しい外側へ突形
の円弧状面取りが施してある実用新案登録請求の
範囲第１項記載の内燃機関のピストン。[Claims for Utility Model Registration] (1) A piston that has a cylindrical part that slides inside the cylinder and a top part that forms a combustion chamber, and is arranged on the inner wall of the cylindrical part in a direction perpendicular to the axis of the cylindrical part. A piston for an internal combustion engine, wherein a pin boss is provided, and a lower half of an inner end surface of the piston pin boss is formed to be shorter than an upper half. (2) The piston for an internal combustion engine according to claim 1, wherein the cylindrical portion, the top portion, and the piston pin boss are integrally cast from an aluminum alloy. (3) The piston for an internal combustion engine according to claim 1, wherein the cylindrical portion, the top portion, and the piston pin boss are integrally formed by forging an aluminum alloy. (4) The piston for an internal combustion engine according to claim 1, wherein the lower half of the inner end surface of the piston pin boss is formed to be about 1 to 5 mm shorter than the upper half. (5) The piston for an internal combustion engine according to claim 1, wherein the upper half of the inner end surface of the piston pin boss has a relatively large arcuate chamfer that projects outward. (5) The internal combustion engine according to claim 1, wherein the upper half of the inner end surface of the piston pin boss has an outwardly projecting arcuate chamfer that is approximately equal to the size of the step from the upper half. piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7753385U JPS61192546U (en) | 1985-05-24 | 1985-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7753385U JPS61192546U (en) | 1985-05-24 | 1985-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61192546U true JPS61192546U (en) | 1986-11-29 |
Family
ID=30620682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7753385U Pending JPS61192546U (en) | 1985-05-24 | 1985-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61192546U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56167831A (en) * | 1980-05-28 | 1981-12-23 | Yanmar Diesel Engine Co Ltd | Piston for internal combustion engine |
| JPS5930505A (en) * | 1982-08-12 | 1984-02-18 | Matsushita Electric Ind Co Ltd | Substrate for optical devices |
-
1985
- 1985-05-24 JP JP7753385U patent/JPS61192546U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56167831A (en) * | 1980-05-28 | 1981-12-23 | Yanmar Diesel Engine Co Ltd | Piston for internal combustion engine |
| JPS5930505A (en) * | 1982-08-12 | 1984-02-18 | Matsushita Electric Ind Co Ltd | Substrate for optical devices |
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