JPS6231748U - - Google Patents
Info
- Publication number
- JPS6231748U JPS6231748U JP12263285U JP12263285U JPS6231748U JP S6231748 U JPS6231748 U JP S6231748U JP 12263285 U JP12263285 U JP 12263285U JP 12263285 U JP12263285 U JP 12263285U JP S6231748 U JPS6231748 U JP S6231748U
- Authority
- JP
- Japan
- Prior art keywords
- lock pin
- connecting rod
- eccentric
- bearing
- outer circumference
- 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 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 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実施例に係る圧縮比可変
機構の縦断面図、第2図は本考案の第2実施例に
係る圧縮比可変機構の縦断面図、第3図は本考案
の第3実施例に係る圧縮比可変機構の縦断面図、
第4図は従来から知られている圧縮比可変機構の
縦断面図、第5図は第4図の装置の直角方向から
みた縦断面図、である。
20…コネクテイングロツド、21…ピストン
ピン、22…偏心ベアリング、23…ロツクピン
、24…ロツクピン収納孔、25…ロツクピン係
合孔、26…ロツクピンロツク用油圧通路、28
,29,30…絞り。
FIG. 1 is a vertical cross-sectional view of a variable compression ratio mechanism according to a first embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of a variable compression ratio mechanism according to a second embodiment of the present invention, and FIG. 3 is a vertical cross-sectional view of a variable compression ratio mechanism according to a second embodiment of the present invention. A vertical cross-sectional view of a variable compression ratio mechanism according to a third embodiment of
FIG. 4 is a longitudinal cross-sectional view of a conventionally known variable compression ratio mechanism, and FIG. 5 is a vertical cross-sectional view of the apparatus shown in FIG. 4 as viewed from the right angle direction. 20...Connecting rod, 21...Piston pin, 22...Eccentric bearing, 23...Lock pin, 24...Lock pin storage hole, 25...Lock pin engagement hole, 26...Hydraulic passage for lock pin lock, 28
, 29, 30...Aperture.
Claims (1)
ピンの外周との間に、内周円と外周円とが互に偏
心した偏心ベアリングを介装し、コネクテイング
ロツド軸方向に油圧で駆動されるロツクピンによ
り、前記偏心ベアリングの回転を固定または自由
にする内燃機関の圧縮比可変機構において、前記
ロツクピン駆動用の油圧通路中に、絞りを設けた
ことを特徴とする圧縮比可変機構の油圧通路。 An eccentric bearing is interposed between the inner circumference of the small end of the connecting rod and the outer circumference of the piston pin, and the inner circumference and outer circumference of the bearing are eccentric to each other, and the connecting rod is hydraulically driven in the axial direction. A variable compression ratio mechanism for an internal combustion engine in which rotation of the eccentric bearing is fixed or freed by a lock pin, characterized in that a restriction is provided in the hydraulic passage for driving the lock pin. .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12263285U JPS6231748U (en) | 1985-08-12 | 1985-08-12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12263285U JPS6231748U (en) | 1985-08-12 | 1985-08-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6231748U true JPS6231748U (en) | 1987-02-25 |
Family
ID=31013003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12263285U Pending JPS6231748U (en) | 1985-08-12 | 1985-08-12 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6231748U (en) |
-
1985
- 1985-08-12 JP JP12263285U patent/JPS6231748U/ja active Pending
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