JPS6272449U - - Google Patents
Info
- Publication number
- JPS6272449U JPS6272449U JP16360985U JP16360985U JPS6272449U JP S6272449 U JPS6272449 U JP S6272449U JP 16360985 U JP16360985 U JP 16360985U JP 16360985 U JP16360985 U JP 16360985U JP S6272449 U JPS6272449 U JP S6272449U
- Authority
- JP
- Japan
- Prior art keywords
- oil passage
- crank journal
- crank
- compression ratio
- connecting rod
- 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 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 3
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- 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
構用油通路の縦断面図、第２図は第１図の装置の
側面図、第３図は可変圧縮比機構全体の縦断面図
、第４図は第３図の装置の直角方向からみた縦断
面図、である。
１……コネクテイングロツド、３……ピストン
ピン、５……偏心ベアリング、６……ロツクピン
、７……ロツクピン収納孔、８……ロツクピン係
合孔、１０……ロツクピンロツク用油圧通路、１
１……ロツクピンアンロツク用油圧通路、１２…
…シリンダブロツク、１３……高圧縮比用オイル
ホール、１４……低圧縮比用オイルホール、１５
，１６……オイル通路、１７……メタル軸受部、
１８……メタル軸受、１９，２０……オイル溝、
２１……クランクシヤフト、２２，２２ａ，２２
ｂ……クランクピン部、２３，２３ａ，２３ｂ…
…オイル通路、２４，２５……オイル溝。
Fig. 1 is a longitudinal sectional view of an oil passage for a variable compression ratio mechanism according to an embodiment of the present invention, Fig. 2 is a side view of the device shown in Fig. 1, and Fig. 3 is a longitudinal sectional view of the entire variable compression ratio mechanism. , FIG. 4 is a vertical cross-sectional view of the device of FIG. 3, viewed from the right angle. 1... Connecting rod, 3... Piston pin, 5... Eccentric bearing, 6... Lock pin, 7... Lock pin storage hole, 8... Lock pin engagement hole, 10... Hydraulic passage for lock pin lock, 1
1...Hydraulic passage for lock pin unlocking, 12...
...Cylinder block, 13...Oil hole for high compression ratio, 14...Oil hole for low compression ratio, 15
, 16...Oil passage, 17...Metal bearing part,
18...Metal bearing, 19,20...Oil groove,
21...Crankshaft, 22, 22a, 22
b...Crank pin part, 23, 23a, 23b...
...Oil passage, 24, 25...Oil groove.
Claims (1)
の間に、供給油圧の切替によりコネクテイングロ
ツドとピストンとの相対位置を切替えることが可
能な可変圧縮比機構を設け、該可変圧縮比機構へ
の油圧を、シリンダブロツクのオイルホールから
、クランクジヤーナルのメタル軸受部に形成され
たオイル通路、クランクシヤフト内をクランクジ
ヤーナル部からクランクピン部へと形成されたオ
イル通路を通して、コネクテイングロツド側へと
供給するようにした可変圧縮比機構用油通路にお
いて、前記クランクシヤフト内のクランクジヤー
ナル部からクランクピン部へのオイル通路を、気
筒間にあるクランクジヤーナル部から該クランク
ジヤーナル部の両側にある隣接するクランクピン
部へと通じる通路に構成したことを特徴とする可
変圧縮比機構用油通路。 A variable compression ratio mechanism is provided between the small end of the connecting rod and the piston pin, and the relative position between the connecting rod and the piston can be changed by changing the hydraulic pressure supplied. is supplied to the connecting rod from the oil hole in the cylinder block, through the oil passage formed in the metal bearing part of the crank journal, and through the oil passage formed inside the crankshaft from the crank journal part to the crank pin part. In the oil passage for a variable compression ratio mechanism, the oil passage from the crank journal part in the crankshaft to the crank pin part is connected from the crank journal part between the cylinders to the adjacent cranks on both sides of the crank journal part. An oil passage for a variable compression ratio mechanism, characterized in that the passage leads to a pin portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16360985U JPS6272449U (en) | 1985-10-26 | 1985-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16360985U JPS6272449U (en) | 1985-10-26 | 1985-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6272449U true JPS6272449U (en) | 1987-05-09 |
Family
ID=31091962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16360985U Pending JPS6272449U (en) | 1985-10-26 | 1985-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6272449U (en) |
-
1985
- 1985-10-26 JP JP16360985U patent/JPS6272449U/ja active Pending