JPS6212746U - - Google Patents
Info
- Publication number
- JPS6212746U JPS6212746U JP10408885U JP10408885U JPS6212746U JP S6212746 U JPS6212746 U JP S6212746U JP 10408885 U JP10408885 U JP 10408885U JP 10408885 U JP10408885 U JP 10408885U JP S6212746 U JPS6212746 U JP S6212746U
- Authority
- JP
- Japan
- Prior art keywords
- compression ratio
- eccentric bearing
- crankshaft
- counterweight
- oil
- 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
- 239000003921 oil Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は本考案の一実施例に係る圧縮比制御機
構の摩擦ローラ近傍の断面図、第２図は第１図と
は直角方向の断面図、第３図は第１図の機構への
オイル供給系の断面図、第４図は第３図とは直角
方向の断面図、第５図は第３図、第４図のオイル
供給系の切換系の系統図、第６図はピストン位置
とクランク角度との関係で示したピストン軌跡図
、である。
１…シリンダブロツク、２…ピストン、３…コ
ネクテイングロツド、４…ピストンピン、５…コ
ネクテイングロツドのピストンピン挿通孔、６…
偏心ベアリング、７…クランクシヤフトカウンタ
ウエイト、８…摩擦ローラ、９…シヤフト、１０
…アーム、１１…油圧シリンダ、１２…ピストン
、１３…切替弁、１４…ポンプ、１５…カウンタ
ウエイト外周面、１６…ロツクピン収納穴、１７
…ロツクピン、１８…ロツクピン係合穴、２０…
ロツクピンロツク用油圧通路、２１…ロツクピン
アンロツク用油圧通路、２２…ロツクピンガイド
溝、２３，２４…油溝、２５…クランクシヤフト
、２６…油通路、２７，２８…油溝、２９…高圧
縮比用メインオイル通路、３０…低圧縮比用メイ
ンオイル通路、３１…オイルパン、３２…潤滑油
、３３…オイルストレーナ、３４…リターンパイ
プ、３５…オイルポンプ、３６…切換弁、３７…
バツテリ、３８…イグニツシヨンスイツチ、３９
…リレー、４０…インテークマニホルド、４１…
吸気負圧スイツチ、４２…ポンプ室、４３…圧力
スイツチ。
FIG. 1 is a sectional view of the vicinity of the friction roller of a compression ratio control mechanism according to an embodiment of the present invention, FIG. 2 is a sectional view taken in a direction perpendicular to that of FIG. 1, and FIG. A cross-sectional view of the oil supply system, Fig. 4 is a cross-sectional view at right angles to Fig. 3, Fig. 5 is a system diagram of the switching system of the oil supply system shown in Figs. 3 and 4, and Fig. 6 is a piston position. FIG. 4 is a piston locus diagram showing the relationship between and crank angle. 1... Cylinder block, 2... Piston, 3... Connecting rod, 4... Piston pin, 5... Piston pin insertion hole of connecting rod, 6...
Eccentric bearing, 7... Crankshaft counterweight, 8... Friction roller, 9... Shaft, 10
...Arm, 11...Hydraulic cylinder, 12...Piston, 13...Switching valve, 14...Pump, 15...Counterweight outer circumferential surface, 16...Lock pin storage hole, 17
...Lock pin, 18...Lock pin engagement hole, 20...
Hydraulic passage for lock pin locking, 21... Hydraulic passage for lock pin unlocking, 22... Lock pin guide groove, 23, 24... Oil groove, 25... Crankshaft, 26... Oil passage, 27, 28... Oil groove, 29... High compression ratio 30...Main oil passage for low compression ratio, 31...Oil pan, 32...Lubricating oil, 33...Oil strainer, 34...Return pipe, 35...Oil pump, 36...Switching valve, 37...
Battery, 38...Ignition switch, 39
...Relay, 40...Intake manifold, 41...
Intake negative pressure switch, 42...Pump chamber, 43...Pressure switch.
Claims (1)
内外周を偏心させた偏心ベアリングを介装し、該
偏心ベアリングの回転によつて圧縮比を変えるよ
うにした圧縮比制御機構において、前記偏心ベア
リングとクランクシヤフトカウンタウエイトとの
間に回転自在の摩擦ローラを、偏心ベアリングと
クランクシヤフトカウンタウエイトに同時に接触
または離反可能に、シリンダブロツクから突出さ
せて介装したことを特徴とする圧縮比制御機構。 In a compression ratio control mechanism in which an eccentric bearing whose inner and outer circumferences are eccentric is interposed between a connecting rod and a piston pin, and the compression ratio is changed by rotation of the eccentric bearing, the eccentric bearing and the crankshaft A compression ratio control mechanism characterized in that a rotatable friction roller is interposed between the counterweight and the eccentric bearing and the crankshaft counterweight so as to protrude from the cylinder block so as to be able to come into contact with or separate from the crankshaft counterweight at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10408885U JPS6212746U (en) | 1985-07-10 | 1985-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10408885U JPS6212746U (en) | 1985-07-10 | 1985-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6212746U true JPS6212746U (en) | 1987-01-26 |
Family
ID=30977259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10408885U Pending JPS6212746U (en) | 1985-07-10 | 1985-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6212746U (en) |
-
1985
- 1985-07-10 JP JP10408885U patent/JPS6212746U/ja active Pending
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