JPS6342841U - - Google Patents
Info
- Publication number
- JPS6342841U JPS6342841U JP13560686U JP13560686U JPS6342841U JP S6342841 U JPS6342841 U JP S6342841U JP 13560686 U JP13560686 U JP 13560686U JP 13560686 U JP13560686 U JP 13560686U JP S6342841 U JPS6342841 U JP S6342841U
- Authority
- JP
- Japan
- Prior art keywords
- lock pin
- connecting rod
- engagement hole
- guide groove
- sectional
- 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
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は本考案の第１実施例に係る可変圧縮比
機構の偏心ベアリングの部分断面図、第２図は第
１図の―線に沿う断面図、第３図イは第２図
のＢ―Ｂ線に沿う断面図、第３図ロは第２図のＣ
―Ｃ線に沿う断面図、第３図ハは第２図のＤ―Ｄ
線に沿う断面図、第４図は第１図の偏心ベアリン
グをコネクテイングロツドとピストンピンとの間
に装着した状態の断面図、第５図は本考案の第２
実施例に係る可変圧縮比機構の偏心ベアリングの
断面図、第６図イは第５図のＥ―Ｅ線に沿う断面
図、第６図ロは第５図のＦ―Ｆ線に沿う断面図、
第６図ハは第５図のＧ―Ｇ線に沿う断面図、第７
図は従来の可変圧縮比機構の断面図、第８図は第
７図の―線に沿う断面図、である。
２０……コネクテイングロツド、２１……ピス
トンピン、２７，４１……ロツクピン、２８……
ロツクピン係合孔、３０，４２……ロツクピン案
内溝、Ａ……ロツクピンとロツクピン係合孔とに
よつて形成される室、Ｗ１，Ｗ２……ロツクピン
案内溝の溝幅。
1 is a partial sectional view of an eccentric bearing of a variable compression ratio mechanism according to a first embodiment of the present invention, FIG. - Cross-sectional view along line B, Figure 3 B is C in Figure 2
- Cross-sectional view along line C, Figure 3 C is D-D in Figure 2
4 is a sectional view of the eccentric bearing shown in FIG. 1 installed between the connecting rod and the piston pin, and FIG.
A sectional view of an eccentric bearing of a variable compression ratio mechanism according to an embodiment, FIG. 6A is a sectional view taken along line EE in FIG. 5, and FIG. 6B is a sectional view taken along line FF in FIG. 5. ,
Figure 6C is a cross-sectional view taken along line GG in Figure 5;
The figure is a sectional view of a conventional variable compression ratio mechanism, and FIG. 8 is a sectional view taken along the line - in FIG. 7. 20... Connecting rod, 21... Piston pin, 27, 41... Lock pin, 28...
Lock pin engaging hole, 30, 42... Lock pin guide groove, A... Chamber formed by the lock pin and lock pin engaging hole, W 1 , W 2 ... Groove width of the lock pin guide groove.
Claims (1)
回転可能に介装され、外周面に、前記コネクテイ
ングロツド側に摺動自在に設けられ油圧によつて
駆動されるロツクピンをロツクピン係合孔に誘導
するロツクピン案内溝を設けた可変圧縮比機構の
偏心ベアリングにおいて、前記ロツクピン案内溝
の溝幅を、前記ロツクピン係合孔に近づくにつれ
て狭くなるように形成したことを特徴とする可変
圧縮比機構の偏心ベアリング。 A lock pin is rotatably interposed between the piston pin and the connecting rod, is slidably provided on the outer peripheral surface of the connecting rod, and is driven by hydraulic pressure to guide the lock pin into the lock pin engagement hole. An eccentric bearing for a variable compression ratio mechanism provided with a lock pin guide groove, characterized in that the groove width of the lock pin guide groove is formed to become narrower as it approaches the lock pin engagement hole. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13560686U JPS6342841U (en) | 1986-09-05 | 1986-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13560686U JPS6342841U (en) | 1986-09-05 | 1986-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6342841U true JPS6342841U (en) | 1988-03-22 |
Family
ID=31037949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13560686U Pending JPS6342841U (en) | 1986-09-05 | 1986-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6342841U (en) |
-
1986
- 1986-09-05 JP JP13560686U patent/JPS6342841U/ja active Pending