JPH03123915U - - Google Patents
Info
- Publication number
- JPH03123915U JPH03123915U JP3491790U JP3491790U JPH03123915U JP H03123915 U JPH03123915 U JP H03123915U JP 3491790 U JP3491790 U JP 3491790U JP 3491790 U JP3491790 U JP 3491790U JP H03123915 U JPH03123915 U JP H03123915U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- spring
- internal combustion
- combustion engine
- protector
- 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 description 7
- 230000001012 protector Effects 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000002955 isolation Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図〜第６図は本考案の一実施例を示すもの
で、第１図は内燃機関の動弁機構の要部の正面断
面図、第２図は第１図に示したプロテクタをバル
ブスプリングの端部とともに示した平面図、第３
図は第２図の正面図、第４図は第２図のＡ−Ａ線
断面図、第５図は第２図の左側面図をバルブスプ
リングの一部とともに示した図、第６図は第２図
のＢ−Ｂ線断面拡大図、第７図は従来の内燃機関
の動弁機構の要部の正面図である。
１……エンジンバルブ、２……本体、４……リ
テーナ、６……バルブスプリング、６ａ……端部
、６ｂ……巻線部分、１１……バルブステム、１
２……バルブヘツド、１４……プロテクタ、１８
……防振板、１９……弾性ダンパ。
Figures 1 to 6 show an embodiment of the present invention. Figure 1 is a front cross-sectional view of the main parts of the valve mechanism of an internal combustion engine, and Figure 2 shows how the protector shown in Figure 1 is attached to the valve mechanism. Top view shown with the end of the spring, 3rd
The figure is a front view of Fig. 2, Fig. 4 is a sectional view taken along the line A-A of Fig. 2, Fig. 5 is a left side view of Fig. 2 together with a part of the valve spring, and Fig. 6 is a sectional view taken along line A-A of Fig. 2. FIG. 2 is an enlarged cross-sectional view taken along the line B-B in FIG. 2, and FIG. 7 is a front view of the main parts of a conventional valve mechanism of an internal combustion engine. DESCRIPTION OF SYMBOLS 1... Engine valve, 2... Main body, 4... Retainer, 6... Valve spring, 6a... End part, 6b... Winding part, 11... Valve stem, 1
2... Valve head, 14... Protector, 18
...Vibration isolation plate, 19...Elastic damper.
Claims (1)
バルブステムと、該バルブステムの一端側に設け
られて内燃機関の本体の吸気もしくは排気用の通
路の燃焼室への開口部を開閉するためのバルブヘ
ツドとを有するエンジンバルブと、前記バルブス
テムの他端側に取付けられたリテーナと内燃機関
の本体の一部に形成されたスプリングシート部と
の間に介在されて前記エンジンバルブを前記開口
部の閉方向に付勢する圧縮コイルスプリングから
なるバルブスプリングとを有する動弁機構であつ
て、前記バルブスプリングと前記リテーナとの間
及び前記バルブスプリングと前記スプリングシー
ト部との間にはそれぞれ環状のプロテクタを介在
させ、該プロテクタはその内側もしくは外側の周
縁部に前記バルブスプリングの対応する端部の少
なくとも一部に嵌合する立縁と、内側もしくは外
側の前記周縁部に立設されて対応するバルブスプ
リングの巻線の一部に該バルブスプリングのほぼ
半径方向で接触する防振板とを有して構成し、さ
らに前記プロテクタと、対応する前記バルブスリ
ングの前記端部に連続しかつ該端部より軸方向に
離隔した位置の巻線部分との間には弾性ダンパを
介在させたことを特徴とする内燃機関の動弁機構
。 A valve stem slidably attached to the main body of the internal combustion engine, and a valve stem provided at one end side of the valve stem for opening and closing an opening to the combustion chamber of an intake or exhaust passage in the main body of the internal combustion engine. The retainer is interposed between an engine valve having a valve head, a retainer attached to the other end of the valve stem, and a spring seat formed in a part of the main body of the internal combustion engine, and the engine valve is connected to the opening. The valve mechanism includes a valve spring made of a compression coil spring biased in a closing direction, and an annular protector is provided between the valve spring and the retainer and between the valve spring and the spring seat portion, respectively. The protector has a raised edge on its inner or outer peripheral edge that fits at least a part of the corresponding end of the valve spring, and a raised edge on the inner or outer peripheral edge that fits the corresponding valve. a vibration isolating plate that contacts a portion of the winding of the spring in a substantially radial direction of the valve spring, and is continuous with the protector and the end of the corresponding valve sling; A valve operating mechanism for an internal combustion engine, characterized in that an elastic damper is interposed between a winding portion located further apart in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3491790U JPH0740643Y2 (en) | 1990-03-30 | 1990-03-30 | Valve mechanism of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3491790U JPH0740643Y2 (en) | 1990-03-30 | 1990-03-30 | Valve mechanism of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03123915U true JPH03123915U (en) | 1991-12-17 |
| JPH0740643Y2 JPH0740643Y2 (en) | 1995-09-20 |
Family
ID=31539814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3491790U Expired - Lifetime JPH0740643Y2 (en) | 1990-03-30 | 1990-03-30 | Valve mechanism of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740643Y2 (en) |
-
1990
- 1990-03-30 JP JP3491790U patent/JPH0740643Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0740643Y2 (en) | 1995-09-20 |
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