JPH01158541U - - Google Patents
Info
- Publication number
- JPH01158541U JPH01158541U JP4998188U JP4998188U JPH01158541U JP H01158541 U JPH01158541 U JP H01158541U JP 4998188 U JP4998188 U JP 4998188U JP 4998188 U JP4998188 U JP 4998188U JP H01158541 U JPH01158541 U JP H01158541U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- piston ring
- groove
- ring groove
- combustion engine
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図はピストンの側面図、第２図はピストン
リング溝底面の外周の実際の熱膨張による変化の
一例を示す、第１図の―線に沿い矢印方法か
ら見た説明図、第３図は本考案にかかるピストン
リング溝構造の一実施例を示す、第２図と同様の
図、第４図はピストンリング溝底面の外周の熱膨
張による変化を示す、第２図と同様の図、第５図
は本考案に基づく第１の方法を施したピストンリ
ング溝構造を示す、第２図と同様の図、第６図は
本考案に基づく第２の方法を施したピストンリン
グ溝構造を示す、第２図と同様の図、第７図は二
枚合せリングを装着したピストンの部分断面図で
ある。
Ａ……冷間時のピストンリング溝底面の外周
、Ｂ……最大熱膨張時におけるピストンリング
溝底面の外周、Ｒ……ピストンリングの内周、１
……ピストン、２……ピストンヘツド、３……ス
カート、４……ピストンリング溝、５……ピスト
ンピン穴、６……ピンボス。
Figure 1 is a side view of the piston, Figure 2 is an explanatory diagram showing an example of changes in the outer periphery of the bottom surface of the piston ring groove due to actual thermal expansion, as seen from the direction of the arrow along the - line in Figure 1, and Figure 3. is a diagram similar to FIG. 2 showing an embodiment of the piston ring groove structure according to the present invention; FIG. 4 is a diagram similar to FIG. 2 showing changes due to thermal expansion of the outer periphery of the bottom surface of the piston ring groove; Figure 5 shows a piston ring groove structure using the first method based on the present invention, a view similar to Figure 2, and Figure 6 shows a piston ring groove structure using the second method based on the present invention. FIG. 7 is a partial cross-sectional view of a piston equipped with a two-piece ring. A... Outer circumference of the bottom surface of the piston ring groove when cold, B... Outer circumference of the bottom surface of the piston ring groove at maximum thermal expansion, R... Inner circumference of the piston ring, 1
... Piston, 2 ... Piston head, 3 ... Skirt, 4 ... Piston ring groove, 5 ... Piston pin hole, 6 ... Pin boss.
Claims (1)
リング溝を、ピストンの最大熱膨張時におけるそ
の溝底面とピストンリング内周面とのクリアラン
スが全周にわたりほぼ均一な所定値となるよう、
略ピンボス方向の溝底面をスラスト・反スラスト
方向より深く形成した内燃機関のピストンのピス
トンリング溝構造。 A piston ring groove is formed on the outer periphery of a piston of an internal combustion engine so that the clearance between the bottom surface of the groove and the inner circumferential surface of the piston ring at the time of maximum thermal expansion of the piston is approximately uniform over the entire circumference.
A piston ring groove structure for an internal combustion engine piston in which the bottom surface of the groove in the direction of the pin boss is deeper than in the thrust/anti-thrust direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4998188U JPH0636284Y2 (en) | 1988-04-15 | 1988-04-15 | Piston ring groove structure of piston of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4998188U JPH0636284Y2 (en) | 1988-04-15 | 1988-04-15 | Piston ring groove structure of piston of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01158541U true JPH01158541U (en) | 1989-11-01 |
| JPH0636284Y2 JPH0636284Y2 (en) | 1994-09-21 |
Family
ID=31276065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4998188U Expired - Lifetime JPH0636284Y2 (en) | 1988-04-15 | 1988-04-15 | Piston ring groove structure of piston of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0636284Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019154908A1 (en) * | 2018-02-07 | 2019-08-15 | Federal-Mogul Nürnberg GmbH | Piston for an internal combustion engine and method for producing a piston |
-
1988
- 1988-04-15 JP JP4998188U patent/JPH0636284Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019154908A1 (en) * | 2018-02-07 | 2019-08-15 | Federal-Mogul Nürnberg GmbH | Piston for an internal combustion engine and method for producing a piston |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0636284Y2 (en) | 1994-09-21 |