JPH01160141U - - Google Patents
Info
- Publication number
- JPH01160141U JPH01160141U JP5596288U JP5596288U JPH01160141U JP H01160141 U JPH01160141 U JP H01160141U JP 5596288 U JP5596288 U JP 5596288U JP 5596288 U JP5596288 U JP 5596288U JP H01160141 U JPH01160141 U JP H01160141U
- Authority
- JP
- Japan
- Prior art keywords
- compression ratio
- valve body
- connecting rod
- hydraulic passage
- high compression
- 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 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims 1
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図は本考案の一実施例に係る可変圧縮比機
構の油圧通路の要部断面図、第２図は第１図の
―線に沿う断面図、第３図は第１図の装置の油
圧通路の全体断面図、第４図は第１図の可変圧縮
比機構におけるクランクシヤフト近傍のオイル通
路の斜視図、第５図は実願昭６２―１７２６１９
号に記載されている弁体の過度の動きを規制させ
るようにした場合の断面図、第６図は第５図の
―線に沿う断面図、第７図は従来の可変圧縮比
機構の一例を示す断面図、第８図は第７図の―
線に沿う断面図、である。
２４……コネクテイングロツド、２５……クラ
ンクシヤフト、２６……偏心ベアリング、２７…
…ロツクピン係合孔、２８……ロツクピン、３０
……高圧縮比用油圧通路、４１……弁体、４２…
…ストツパー手段。
FIG. 1 is a cross-sectional view of a main part of a hydraulic passage of a variable compression ratio mechanism according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line - in FIG. 1, and FIG. 4 is a perspective view of the oil passage near the crankshaft in the variable compression ratio mechanism of FIG. 1, and FIG. 5 is a general sectional view of the hydraulic passage.
Figure 6 is a cross-sectional view taken along the line - in Figure 5, and Figure 7 is an example of a conventional variable compression ratio mechanism. Figure 8 is a cross-sectional view showing Figure 7.
It is a cross-sectional view along the line. 24...Connecting rod, 25...Crankshaft, 26...Eccentric bearing, 27...
... Lock pin engagement hole, 28 ... Lock pin, 30
... Hydraulic passage for high compression ratio, 41 ... Valve body, 42 ...
…stopper means.
Claims (1)
偏心ベアリングを回転可能に介装し、前記コネク
テイングロツド側に摺動自在に設けられたロツク
ピンを、該コネクテイングロツドに形成された高
圧縮比用油圧通路にクランクシヤフト側から間欠
的に圧送されるオイルにより偏心ベアリングのロ
ツクピン係合孔に係合させ、該偏心ベアリングの
回転をロツクさせるようにした内燃機関の可変圧
縮比機構において、前記高圧縮比用油圧通路に、
慣性力によつて該高圧縮比用油圧通路を開閉する
弁体を設け、該弁体と前記ロツクピンとの間に、
弁体との当接によつて回転し該弁体の過度の動き
を規制するストツパー手段を設けたことを特徴と
する可変圧縮比機構の油圧通路。 An eccentric bearing is rotatably interposed between the piston pin and the connecting rod, and a lock pin slidably provided on the connecting rod side is connected to a high compression ratio shaft formed on the connecting rod. In a variable compression ratio mechanism for an internal combustion engine, the high compression In the specific hydraulic passage,
A valve body is provided that opens and closes the high compression ratio hydraulic passage by inertia, and between the valve body and the lock pin,
A hydraulic passage for a variable compression ratio mechanism, characterized in that it is provided with a stopper means that rotates upon contact with a valve body and restricts excessive movement of the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5596288U JPH01160141U (en) | 1988-04-27 | 1988-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5596288U JPH01160141U (en) | 1988-04-27 | 1988-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01160141U true JPH01160141U (en) | 1989-11-07 |
Family
ID=31281847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5596288U Pending JPH01160141U (en) | 1988-04-27 | 1988-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01160141U (en) |
-
1988
- 1988-04-27 JP JP5596288U patent/JPH01160141U/ja active Pending