JPS62190811U - - Google Patents
Info
- Publication number
- JPS62190811U JPS62190811U JP7927986U JP7927986U JPS62190811U JP S62190811 U JPS62190811 U JP S62190811U JP 7927986 U JP7927986 U JP 7927986U JP 7927986 U JP7927986 U JP 7927986U JP S62190811 U JPS62190811 U JP S62190811U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- exhaust valve
- exhaust
- valve
- spring
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims 3
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図及び第２図は本考案の実施例に関するも
ので、第１図は本実施例の概要を示す縦断面図、
第２図は第１図のＡ部分拡大断面図である。第３
図は本考案の他の実施例に関するもので、本実施
例のニードルベアリングの拡大断面図である。
１……ロツカーアーム、１０１……当り面、２
……ロツカーシヤフト、３……吸排気弁、６……
リテーナ、６０１……リテーナ本体、６０２……
ニードルベアリング、６１２……上面ケース、６
１２ａ……上面スリツト、６２２……下面ケース
、６２２ａ……下面スリツト、６３２……ニード
ルローラ、７……スプリング。
1 and 2 relate to an embodiment of the present invention, and FIG. 1 is a vertical sectional view showing an outline of the embodiment;
FIG. 2 is an enlarged sectional view of part A in FIG. 1. Third
The figure relates to another embodiment of the present invention, and is an enlarged sectional view of the needle bearing of this embodiment. 1...Rotzker arm, 101...Attaching surface, 2
...Rotsuka shaft, 3...Intake and exhaust valve, 6...
Retainer, 601... Retainer body, 602...
Needle bearing, 612...Top case, 6
12a...Top slit, 622...Bottom case, 622a...Bottom slit, 632...Needle roller, 7...Spring.
Claims (1)
と、 内燃機関と同期して回転するカムと、 ロツカーシヤフトに支持されており、前記吸排
気弁に当接する略球面形状の当り面によつて前記
カムの作動を前記吸排気弁に伝達するロツカーア
ームと、 前記吸排気弁を閉方向に常時付勢するスプリン
グと、 前記吸排気弁と前記スプリングとの間に設けら
れ、前記吸排気弁に固定したリテーナ本体と、前
記スプリングとの間に介在させたニードルベアリ
ングとにより構成され、前記吸排気弁と前記スプ
リング間の回転抵抗を小さくする摩擦低減機構と を有し、前記ロツカーアームの吸排気弁への作用
点を前記吸排気弁の軸線から前記ロツカーシヤフ
トの軸線方向に所定量偏倚させた弁回転装置にお
いて、 前記摩擦低減機構のニードルベアリングは複数
のニードルローラと、前記ニードルローラを内部
で保持するスリツトを有するケースとから構成さ
れ、前記ケースは前記リテーナ本体の外周部より
もさらに外周側に突出していることを特徴とする
内燃機関の弁回転装置。[Scope of Claim for Utility Model Registration] An intake and exhaust valve that opens and closes an intake and exhaust port opening into a combustion chamber, a cam that rotates in synchronization with the internal combustion engine, and a shaft that is supported by a rocker shaft and that abuts the intake and exhaust valve. a rocker arm that transmits the operation of the cam to the intake and exhaust valves through a spherical contact surface; a spring that constantly biases the intake and exhaust valves in the closing direction; and a rocker arm that is provided between the intake and exhaust valves and the springs. and a friction reduction mechanism configured by a retainer body fixed to the intake/exhaust valve and a needle bearing interposed between the spring and reducing rotational resistance between the intake/exhaust valve and the spring. , in a valve rotation device in which a point of action of the rocker arm on the intake and exhaust valve is offset by a predetermined amount from the axis of the intake and exhaust valve in the axial direction of the rocker shaft, the needle bearing of the friction reduction mechanism includes a plurality of needle rollers, 1. A valve rotation device for an internal combustion engine, comprising a case having a slit for holding a needle roller therein, the case projecting further outward than the outer circumference of the retainer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986079279U JPH0723525Y2 (en) | 1986-05-26 | 1986-05-26 | Valve rotation device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986079279U JPH0723525Y2 (en) | 1986-05-26 | 1986-05-26 | Valve rotation device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62190811U true JPS62190811U (en) | 1987-12-04 |
| JPH0723525Y2 JPH0723525Y2 (en) | 1995-05-31 |
Family
ID=30928994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986079279U Expired - Lifetime JPH0723525Y2 (en) | 1986-05-26 | 1986-05-26 | Valve rotation device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0723525Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3304878A1 (en) * | 1983-02-12 | 1984-08-16 | INA Wälzlager Schaeffler KG, 8522 Herzogenaurach | Device for rotating internal combustion engine valves loaded by helical springs |
-
1986
- 1986-05-26 JP JP1986079279U patent/JPH0723525Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3304878A1 (en) * | 1983-02-12 | 1984-08-16 | INA Wälzlager Schaeffler KG, 8522 Herzogenaurach | Device for rotating internal combustion engine valves loaded by helical springs |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0723525Y2 (en) | 1995-05-31 |
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