JPH01157246U - - Google Patents
Info
- Publication number
- JPH01157246U JPH01157246U JP5218388U JP5218388U JPH01157246U JP H01157246 U JPH01157246 U JP H01157246U JP 5218388 U JP5218388 U JP 5218388U JP 5218388 U JP5218388 U JP 5218388U JP H01157246 U JPH01157246 U JP H01157246U
- Authority
- JP
- Japan
- Prior art keywords
- sun gear
- crankshaft
- attached
- eccentric bearing
- eccentric
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案の一実施例に係る内燃機関の圧
縮比可変機構の要部断面図、第２図は第１図の
―線に沿う断面図、第３図は第１図の角度調整
手段の概略構成図、第４図は第１図の装置の高圧
縮比状態におけるピストンの動きの変化を示した
特性図、第５図は第１図の装置の低圧縮比状態に
おけるピストンの動きの変化を示した特性図、で
ある。
２……ピストン、４……コネクテイングロツド
、６……クランクシヤフト、７……クランクピン
、８……偏心ベアリング、９……太陽歯車、１０
……遊星歯車、１４……角度調整手段、１９……
ＥＣＵ（電子制御装置）。
Fig. 1 is a cross-sectional view of a main part of a compression ratio variable mechanism for an internal combustion engine according to an embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the line - in Fig. 1, and Fig. 3 is an angle adjustment diagram of Fig. 1. A schematic configuration diagram of the means, FIG. 4 is a characteristic diagram showing changes in the movement of the piston in the high compression ratio state of the device shown in FIG. 1, and FIG. 5 is a characteristic diagram showing the movement of the piston in the low compression ratio state of the device shown in FIG. 2 is a characteristic diagram showing changes in . 2... Piston, 4... Connecting rod, 6... Crankshaft, 7... Crank pin, 8... Eccentric bearing, 9... Sun gear, 10
... Planetary gear, 14 ... Angle adjustment means, 19 ...
ECU (electronic control unit).
Claims (1)
ランクピンとの間に、内周と外周とを互いに偏心
させた偏心ベアリングを回転可能に介装し、該偏
心ベアリングに、前記クランクシヤフトの軸心に
位置する太陽歯車と噛合いかつ該太陽歯車と同一
の歯数を有する遊星歯車を取付け、前記太陽歯車
に、該太陽歯車の静止角度を調整する角度調整手
段を連結したことを特徴とする内燃機関の圧縮比
可変機構。 An eccentric bearing having an inner circumference and an outer circumference eccentric to each other is rotatably interposed between the connecting rod and the crank pin of the crankshaft, and a sun gear located at the axis of the crankshaft is attached to the eccentric bearing. A variable compression ratio mechanism for an internal combustion engine, characterized in that a planetary gear meshing with the sun gear and having the same number of teeth as the sun gear is attached, and an angle adjustment means for adjusting the rest angle of the sun gear is connected to the sun gear. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5218388U JPH01157246U (en) | 1988-04-20 | 1988-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5218388U JPH01157246U (en) | 1988-04-20 | 1988-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01157246U true JPH01157246U (en) | 1989-10-30 |
Family
ID=31278190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5218388U Pending JPH01157246U (en) | 1988-04-20 | 1988-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01157246U (en) |
-
1988
- 1988-04-20 JP JP5218388U patent/JPH01157246U/ja active Pending
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