JPS6178208U - - Google Patents
Info
- Publication number
- JPS6178208U JPS6178208U JP16325684U JP16325684U JPS6178208U JP S6178208 U JPS6178208 U JP S6178208U JP 16325684 U JP16325684 U JP 16325684U JP 16325684 U JP16325684 U JP 16325684U JP S6178208 U JPS6178208 U JP S6178208U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- exhaust valve
- lever
- lift control
- internal combustion
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図〜第７図はこの考案に係る内燃機関の吸
・排気弁リフト制御装置の一実施例を示す図であ
り、第１図はその要部縦断面図、第２図はその要
部平面図、第３図はそのリフト制御カムの取付方
法を示す分解斜視図、第４図はレバーの一端部を
示す斜視図、第５図は主に吸気弁のバルブリフト
特性を示すグラフ、第６図はレバー、ロツカアー
ムの移動を示す説明図、第７図は主に排気弁のバ
ルブリフト特性を示すグラフ、第８図および第９
図はこの考案の他の実施例を示す図であり、第８
図はその要部断面図、第９図は主に排気弁のバル
ブリフト特性を示すグラフ、第１０図はこの考案
のさらに他の実施例を示すその要部断面図、第１
１図および第１２図は従来の内燃機関の吸・排気
弁リフト制御装置を示す図でり、第１１図はその
縦断面図、第１２図はそのバルブリフト特性を示
すグラフである。
１１……吸・排気弁駆動カム、１２……吸・排
気弁、１３……ロツカアーム、１３ａ……背面、
１５……レバー、２０，３０，４０……リフト制
御カム、２２……円筒体、２３……フオーク。
1 to 7 are diagrams showing an embodiment of the intake/exhaust valve lift control device for an internal combustion engine according to this invention. FIG. 1 is a vertical cross-sectional view of the main part thereof, and FIG. 3 is an exploded perspective view showing how to install the lift control cam, FIG. 4 is a perspective view showing one end of the lever, and FIG. 5 is a graph mainly showing the valve lift characteristics of the intake valve. Figure 6 is an explanatory diagram showing the movement of the lever and rocker arm, Figure 7 is a graph mainly showing the valve lift characteristics of the exhaust valve, Figures 8 and 9
The figure shows another embodiment of this invention.
9 is a graph mainly showing the valve lift characteristics of the exhaust valve. FIG. 10 is a sectional view of the main part showing still another embodiment of this invention.
1 and 12 are diagrams showing a conventional intake/exhaust valve lift control device for an internal combustion engine, FIG. 11 is a longitudinal sectional view thereof, and FIG. 12 is a graph showing its valve lift characteristics. 11... Suction/exhaust valve drive cam, 12... Suction/exhaust valve, 13... Locker arm, 13a... Back side,
15... Lever, 20, 30, 40... Lift control cam, 22... Cylindrical body, 23... Fork.
Claims (1)
ドとに両端がそれぞれ係合して揺動自在に設けら
れたロツカアームの湾曲形成された背面を、該背
面に沿つて揺動自在に設けられたレバーに支点接
触させ、該レバーの一端部に係合させたリフト制
御カムの回動量を機関の運転条件に応じて制御し
、レバーの揺動位置を変化させることにより、レ
バーとロツカアームとの接触する支点位置を変化
させて吸・排気弁のリフト特性を可変制御する内
燃機関の吸・排気弁リフト制御装置において、機
関の運転条件に応じて上記レバーをその長手方向
に変位させることにより、上記ロツカアームの上
記吸・排気弁駆動カムに対するその円周方向の係
合位置を可変とする変位部材を設けたことを特徴
とする内燃機関の吸・排気弁リフト制御装置。 The curved back surface of the rocker arm, which is swingably provided with both ends engaged with the intake/exhaust valve drive cam and the stem end of the intake/exhaust valve, respectively, is swingably provided along the back surface. The rotation amount of the lift control cam, which is engaged with one end of the lever, is controlled according to the operating conditions of the engine, and the swing position of the lever is changed. In an internal combustion engine intake/exhaust valve lift control device that variably controls the lift characteristics of the intake/exhaust valves by changing the contacting fulcrum position, by displacing the lever in its longitudinal direction according to engine operating conditions, An intake/exhaust valve lift control device for an internal combustion engine, characterized in that a displacement member is provided to vary the engagement position of the rocker arm with respect to the intake/exhaust valve drive cam in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16325684U JPS6178208U (en) | 1984-10-29 | 1984-10-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16325684U JPS6178208U (en) | 1984-10-29 | 1984-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6178208U true JPS6178208U (en) | 1986-05-26 |
Family
ID=30721115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16325684U Pending JPS6178208U (en) | 1984-10-29 | 1984-10-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6178208U (en) |
-
1984
- 1984-10-29 JP JP16325684U patent/JPS6178208U/ja active Pending
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