JPH0511282Y2 - - Google Patents
Info
- Publication number
- JPH0511282Y2 JPH0511282Y2 JP1986121723U JP12172386U JPH0511282Y2 JP H0511282 Y2 JPH0511282 Y2 JP H0511282Y2 JP 1986121723 U JP1986121723 U JP 1986121723U JP 12172386 U JP12172386 U JP 12172386U JP H0511282 Y2 JPH0511282 Y2 JP H0511282Y2
- Authority
- JP
- Japan
- Prior art keywords
- bottomed cylindrical
- cylindrical plunger
- reservoir
- cylinder body
- rocker arm
- 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.)
- Expired - Lifetime
Links
- 238000003466 welding Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案はロツカーアームに組み込まれる、所謂
ビルトインタイプの油圧式バルブラツシユアジヤ
スタに関する。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a so-called built-in type hydraulic valve brush adjuster that is incorporated into a rocker arm.
従来の技術
従来のこの種の油圧式バルブラツシユアジヤス
タは、内部に摺動自在に嵌入させた有底円筒プラ
ンジヤを有するシリンダボデイを含み、シリンダ
ボデイはロツカーアームの受口に嵌め込まれる。
受口に続いて容量の大きいリザーバ室がロツカー
アームに形成される。BACKGROUND OF THE INVENTION A conventional hydraulic valve latch adjuster of this type includes a cylinder body having a bottomed cylindrical plunger slidably fitted therein, and the cylinder body is fitted into a socket of a rocker arm.
Adjacent to the socket, a large-capacity reservoir chamber is formed in the rocker arm.
考案が解決しようとする問題点
この構成では、リザーバ室の容積を大きく確保
するあまり、どうしてもロツカーアームの断面積
を大きくする必要があり、ロツカーアームの重量
増の要因になつている。その上有底円筒プランジ
ヤの肉厚も大きく設計される関係から、アジヤス
タ自体も重量が大きくなる。Problems to be Solved by the Invention In this configuration, in order to ensure a large volume of the reservoir chamber, it is necessary to increase the cross-sectional area of the rocker arm, which becomes a factor in increasing the weight of the rocker arm. Furthermore, since the wall thickness of the bottomed cylindrical plunger is designed to be large, the weight of the adjuster itself becomes large.
本考案は、リザーバ室の容積を大きく確保しな
がら、ロツカーアームの断面積を減少させること
ができ、かつプランジヤの重量軽減を図ることの
できる油圧式バルブラツシユアジヤスタを提供す
ることを目的とするものである。 The object of the present invention is to provide a hydraulic valve lash adjuster that can reduce the cross-sectional area of the rocker arm and reduce the weight of the plunger while ensuring a large volume of the reservoir chamber. It is something.
問題点を解決するための手段
本考案は、この目的を達成するために、ロツカ
ーアームの受口に嵌め込まれ、内部に薄肉の有底
円筒プランジヤを摺動自在に嵌入させたシリンダ
ボデイを備え、前記有底円筒プランジヤの内部
に、凹部を形成したリザーバ構成部品が嵌め込ま
れ、リザーバ構成部品の凹部で形成されたリザー
バ室を、ロツカーアーム内の油供給路と連通さ
せ、かつリザーバ構成部品と有底円筒プランジヤ
との間に構成された高圧室とチエツク弁を介して
連通させた油圧式バルブラツシユアジヤスタにお
いて、リザーバ構成部品をその上端においてシリ
ンダボデイの頂解放端に連結固定したことを特徴
とする油圧式バルブラツシユアジヤスタを提供す
る。Means for Solving the Problems In order to achieve this object, the present invention includes a cylinder body that is fitted into the socket of the rocker arm and has a thin-walled bottomed cylindrical plunger slidably fitted inside. A reservoir component with a recess formed inside the bottomed cylindrical plunger is fitted, and the reservoir chamber formed by the recess of the reservoir component is communicated with the oil supply path in the rocker arm, and the reservoir component and the bottomed cylindrical plunger are connected to each other. A hydraulic valve latch adjuster that communicates with a high pressure chamber formed between the plunger and the plunger via a check valve, characterized in that a reservoir component is connected and fixed at its upper end to the top open end of the cylinder body. Provides hydraulic valve lash adjusters.
実施例
今、本考案の実施例を添付図面を参照して一層
詳細に説明する。Embodiments Embodiments of the invention will now be described in more detail with reference to the accompanying drawings.
図面において、ロツカーアーム１には受口２が
設けられ、この受口２には、内部に摺動自在に嵌
入された薄肉の有底円筒プランジヤ３を有するシ
リンダボデイ４が嵌め込まれている。凹部５を形
成したリザーバ構成部品６が有底円筒プランジヤ
３の内部に位置し、そしてその上端はシリンダボ
デイの頂開放部に連結固定されている。この連結
はリザーバ構成部品の上端とシリンダボデイの頂
開放端とを図示のようにテーパにして互いに嵌合
させ、その接合部を溶接することによつて行われ
る。別の例として、リザーバ構成部品の上端とシ
リンダボデイの開放端とをねじによつて連結して
もよい。またリザーバ構成部品の上端外周に段部
を形成してこれをシリンダボデイの開放端に嵌め
込み、溶接によつて両者を連結してもよい。リザ
ーバ構成部品６の凹部５で構成されたリザーバ室
７はロツカーアームシヤフト８の中空部９、環状
溝１０、半径方向の穴１１、及びロツカーアーム
内の油供給路１２を介して油供給源と連通してい
る。リザーバ室７は、リザーバ構成部品６と有底
円筒プランジヤ３との間に構成された高圧室１３
とチエツク弁１４を介して連通する。１５はリテ
ーナ、１６は弁ばね、１７はリザーバ構成部品６
と有底円筒プランジヤ３との間に配置されたリタ
ーンスプリングである。 In the drawing, a rocker arm 1 is provided with a socket 2, and a cylinder body 4 having a thin-walled bottomed cylindrical plunger 3 slidably fitted into the socket 2 is fitted into the socket 2. A reservoir component 6 forming a recess 5 is located inside the bottomed cylindrical plunger 3, and its upper end is connected and fixed to the open top of the cylinder body. This connection is accomplished by tapering the upper end of the reservoir component and the top open end of the cylinder body, as shown, to fit into each other, and welding the joint. As another example, the upper end of the reservoir component and the open end of the cylinder body may be connected by a screw. Alternatively, a step may be formed on the outer periphery of the upper end of the reservoir component, and this step may be fitted into the open end of the cylinder body, and the two may be connected by welding. The reservoir chamber 7 constituted by the recess 5 of the reservoir component 6 is connected to the oil supply source via the hollow part 9 of the rocker arm shaft 8, the annular groove 10, the radial hole 11 and the oil supply channel 12 in the rocker arm. It's communicating. The reservoir chamber 7 includes a high pressure chamber 13 configured between the reservoir component 6 and the bottomed cylindrical plunger 3.
It communicates with the check valve 14 through the check valve 14. 15 is a retainer, 16 is a valve spring, 17 is a reservoir component 6
and the bottomed cylindrical plunger 3.
カム１８の回転によりバルブ１９が開かれる
と、弁ばね２０の作用により高圧室１３に高圧が
発生し、その間高圧室内の油は有底円筒プランジ
ヤ３とシリンダボデイ４との間に隙間より僅かに
外部に漏れ、その分有底円筒プランジヤ３は縮側
に変位する。バルブ１９が閉じると、リターンス
プリング１７の作用により有底円筒プランジヤ３
は伸び側に変位しようとし、その結果、高圧室１
３内に負圧が生じ、リザーバ室７より高圧室１３
へチエツク弁１４を通して油が流れる。リザーバ
室７には常に油が保持されているので、エンジン
の始動時等の無給油状態でも即座に空気が高圧室
に流れ込むことがない。 When the valve 19 is opened by the rotation of the cam 18, high pressure is generated in the high pressure chamber 13 by the action of the valve spring 20, and during this time the oil in the high pressure chamber is slightly smaller than the gap between the bottomed cylindrical plunger 3 and the cylinder body 4. The leakage to the outside causes the bottomed cylindrical plunger 3 to move toward the contraction side. When the valve 19 closes, the bottomed cylindrical plunger 3
tries to shift to the extension side, and as a result, high pressure chamber 1
Negative pressure is generated in the high pressure chamber 13 from the reservoir chamber 7.
Oil flows through the check valve 14. Since oil is always held in the reservoir chamber 7, air does not immediately flow into the high pressure chamber even when no oil is supplied, such as when starting the engine.
考案の効果
本考案では、リザーバ構成部品をその上端にお
いてシリンダボデイに連結して有底円筒プランジ
ヤの内部に配置したから、大きな容積のリザーバ
室をシリンダボデイ内において確保することがで
き、その分ロツカーアームの断面積を減少させる
ことができる。また、有底円筒プランジヤを薄肉
に構成しているから、その重量を軽減することが
できる。Effects of the invention In this invention, since the reservoir component is connected to the cylinder body at its upper end and placed inside the bottomed cylindrical plunger, a large volume reservoir chamber can be secured in the cylinder body, and the Rocker arm The cross-sectional area of can be reduced. Moreover, since the bottomed cylindrical plunger is constructed with a thin wall, its weight can be reduced.
添付図面は本考案による油圧式バルブラツシユ
アジヤスタの断面図である。
１……ロツカーアーム、２……受口、３……有
底円筒プランジヤ、４……シリンダボデイ、５…
…凹部、６……リザーバ構成部品、７……リザー
バ室、１２……油供給路、１３……高圧室、１４
……チエツク弁。
The accompanying drawing is a sectional view of a hydraulic valve lash adjuster according to the present invention. 1...Rotzker arm, 2...Socket, 3...Bottomed cylindrical plunger, 4...Cylinder body, 5...
... recess, 6 ... reservoir component, 7 ... reservoir chamber, 12 ... oil supply path, 13 ... high pressure chamber, 14
...Check valve.
Claims (1)
肉の有底円筒プランジヤを摺動自在に嵌入させた
シリンダボデイを備え、前記有底円筒プランジヤ
の内部に、凹部を形成したリザーバ構成部品が嵌
め込まれ、リザーバ構成部品の凹部で形成された
リザーバ室をロツカーアーム内の油供給路と連通
させ、かつリザーバ構成部品と有底円筒プランジ
ヤとの間に構成された高圧室とチエツク弁を介し
て連通させた油圧式バルブラツシユアジヤスタに
おいて、リザーバ構成部品をその上端においてシ
リンダボデイの頂解放端に連結固定したことを特
徴とする油圧式バルブラツシユアジヤスタ。 The cylinder body is fitted into the socket of the Rocker arm, and has a thin-walled bottomed cylindrical plunger slidably fitted therein, and a reservoir component having a recess formed in the bottomed cylindrical plunger is fitted into the bottomed cylindrical plunger. Hydraulic type in which a reservoir chamber formed by a concave part of a component is communicated with an oil supply path in a rocker arm, and communicated with a high pressure chamber formed between a reservoir component and a bottomed cylindrical plunger via a check valve. A hydraulic valve lash adjuster, characterized in that a reservoir component is connected and fixed at its upper end to the top open end of a cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986121723U JPH0511282Y2 (en) | 1986-08-08 | 1986-08-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986121723U JPH0511282Y2 (en) | 1986-08-08 | 1986-08-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6328806U JPS6328806U (en) | 1988-02-25 |
| JPH0511282Y2 true JPH0511282Y2 (en) | 1993-03-19 |
Family
ID=31011257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986121723U Expired - Lifetime JPH0511282Y2 (en) | 1986-08-08 | 1986-08-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0511282Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60206914A (en) * | 1984-03-31 | 1985-10-18 | Nittan Valve Kk | Automatic correction device for valve gap of hydraulic valve |
| JPS611812A (en) * | 1984-06-12 | 1986-01-07 | Nissan Motor Co Ltd | Valve driving device of internal-combustion engine |
-
1986
- 1986-08-08 JP JP1986121723U patent/JPH0511282Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60206914A (en) * | 1984-03-31 | 1985-10-18 | Nittan Valve Kk | Automatic correction device for valve gap of hydraulic valve |
| JPS611812A (en) * | 1984-06-12 | 1986-01-07 | Nissan Motor Co Ltd | Valve driving device of internal-combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6328806U (en) | 1988-02-25 |
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