JPS61204936U - - Google Patents
Info
- Publication number
- JPS61204936U JPS61204936U JP8758585U JP8758585U JPS61204936U JP S61204936 U JPS61204936 U JP S61204936U JP 8758585 U JP8758585 U JP 8758585U JP 8758585 U JP8758585 U JP 8758585U JP S61204936 U JPS61204936 U JP S61204936U
- Authority
- JP
- Japan
- Prior art keywords
- lock pin
- eccentric bearing
- connecting rod
- compression ratio
- type variable
- 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
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
第１図は本考案の第１実施例に係る偏心ベアリ
ングタイプ可変圧縮比機構のロツクピン係合構造
の断面図、第２図は本考案の第２実施例に係る偏
心ベアリングタイプ可変圧縮比機構のロツクピン
係合構造の断面図、第３図は本考案の第３実施例
に係る偏心ベアリングタイプ可変圧縮比機構のロ
ツクピン係合構造の断面図、第４図は従来のロツ
クピン係合構造の断面図、第５図は従来の偏心ベ
アリングタイプ可変圧縮比機構の断面図、第６図
は第５図の機構の第５図とは直角方向の断面図、
である。
３……コネクテイングロツド、４……ピストン
ピン、６……偏心ベアリング、７……ロツクピン
係合孔、８……ロツクピン、９……ロツクピン収
納穴、１２……縮径部、１３……摺動部、１４…
…突び出た部分、１５……大径部、１６……テー
パ部。
FIG. 1 is a sectional view of the lock pin engagement structure of the eccentric bearing type variable compression ratio mechanism according to the first embodiment of the present invention, and FIG. 2 is a sectional view of the eccentric bearing type variable compression ratio mechanism according to the second embodiment of the present invention. 3 is a sectional view of the lock pin engagement structure of the eccentric bearing type variable compression ratio mechanism according to the third embodiment of the present invention, and FIG. 4 is a sectional view of the conventional lock pin engagement structure. , FIG. 5 is a cross-sectional view of a conventional eccentric bearing type variable compression ratio mechanism, and FIG. 6 is a cross-sectional view of the mechanism shown in FIG. 5 in a direction perpendicular to FIG.
It is. 3...Connecting rod, 4...Piston pin, 6...Eccentric bearing, 7...Lock pin engagement hole, 8...Lock pin, 9...Lock pin storage hole, 12...Reduced diameter portion, 13... Sliding part, 14...
...protruding portion, 15...large diameter portion, 16...tapered portion.
Claims (1)
偏心ベアリングを介装し、該偏心ベアリングの回
転量に応じてピストンのコネクテイングロツドに
対する相対位置を変化させて圧縮比を変化させ、
偏心ベアリングに設けたロツクピン係合孔にコネ
クテイングロツドに設けたロツクピン収納穴に摺
動自在に嵌挿したロツクピンを出し入れすること
により偏心ベアリングの回転をロツクまたはフリ
ーにさせた偏心ベアリングタイプ可変圧縮比機構
において、前記ロツクピンの外周と前記ロツクピ
ン収納穴との間隙をロツクピン先端側を大とした
ことを特徴とする偏心ベアリングタイプ可変圧縮
比機構のロツクピン係合構造。 An eccentric bearing is interposed between the piston pin and the connecting rod, and the compression ratio is changed by changing the relative position of the piston to the connecting rod in accordance with the amount of rotation of the eccentric bearing.
Eccentric bearing type variable compression that locks or frees rotation of the eccentric bearing by inserting and removing the lock pin that is slidably inserted into the lock pin storage hole provided in the connecting rod and into the lock pin engagement hole provided in the eccentric bearing. A lock pin engagement structure for an eccentric bearing type variable compression ratio mechanism, characterized in that the gap between the outer periphery of the lock pin and the lock pin storage hole is made larger on the tip side of the lock pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8758585U JPH0338426Y2 (en) | 1985-06-12 | 1985-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8758585U JPH0338426Y2 (en) | 1985-06-12 | 1985-06-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61204936U true JPS61204936U (en) | 1986-12-24 |
| JPH0338426Y2 JPH0338426Y2 (en) | 1991-08-14 |
Family
ID=30639942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8758585U Expired JPH0338426Y2 (en) | 1985-06-12 | 1985-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0338426Y2 (en) |
-
1985
- 1985-06-12 JP JP8758585U patent/JPH0338426Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0338426Y2 (en) | 1991-08-14 |