JPS59141107U - Hydraulic valve lifter device - Google Patents
Hydraulic valve lifter deviceInfo
- Publication number
- JPS59141107U JPS59141107U JP3597883U JP3597883U JPS59141107U JP S59141107 U JPS59141107 U JP S59141107U JP 3597883 U JP3597883 U JP 3597883U JP 3597883 U JP3597883 U JP 3597883U JP S59141107 U JPS59141107 U JP S59141107U
- Authority
- JP
- Japan
- Prior art keywords
- plunger element
- coil spring
- compression coil
- pressure chamber
- retainer
- 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
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、オーバヘッドバルブ式エンジンの縦断面図、
第２図は、第１図のオーバヘッドバルブ式エンジンに用
いられる従来の油圧式バルブリフタ装置の縦断面図、第
３図は、第２図のＡ部拡大、 図、第４図は、第２図の
油圧式バルブリフタ装置の第２のプランジャ要素の縦断
面図、第５図は、第２図の油圧式バルブリフタ装置の第
１のプランジャ要素の縦断面図、第６図は、第２図の油
圧式バルブリフタ装置の第１の圧縮コイルばねの立面図
、第７図は、従来の他の油圧式バルブリフタ装置の一部
縦断面図、第８図は、本考案の一実施例に係る油圧式バ
ルブリフタ装置の縦断面図、第９図は、第８図のＢ部拡
大図である。
２２・・・第１プランジヤ要素、２４・・・第２のプラ
ンジャ要素、２５・・・端板、２６・・・油室、３３・
・・第２のプランジャ要素の下端壁、３４・・・圧力室
、３５・・・スカート部、３６・・・連通孔、３７．・
・・逆止弁、３Ｂ・・・第、１の圧縮コイルばね、３９
・・・ボール、４０・・・第２の圧縮コイルばね、４１
・・・リテーナ、４２・・・円筒部、４３・・・フラン
ジ部、４５・・・凹溝、４６・・・リテーナのフランジ
部の外周縁部、２１・・・油圧式バルブリフタ装置。Figure 1 is a longitudinal sectional view of an overhead valve type engine.
2 is a vertical cross-sectional view of a conventional hydraulic valve lifter device used in the overhead valve type engine shown in FIG. 1, FIG. 3 is an enlarged view of section A in FIG. 2, and FIG. FIG. 5 is a vertical sectional view of the first plunger element of the hydraulic valve lifter device of FIG. 2, and FIG. 6 is a longitudinal sectional view of the first plunger element of the hydraulic valve lifter device of FIG. FIG. 7 is a partial vertical sectional view of another conventional hydraulic valve lifter device, and FIG. 8 is a hydraulic valve lifter device according to an embodiment of the present invention. FIG. 9, a vertical cross-sectional view of the valve lifter device, is an enlarged view of section B in FIG. 8. 22... First plunger element, 24... Second plunger element, 25... End plate, 26... Oil chamber, 33...
... Lower end wall of second plunger element, 34 ... Pressure chamber, 35 ... Skirt portion, 36 ... Communication hole, 37.・
...Check valve, 3B...No. 1 compression coil spring, 39
... Ball, 40 ... Second compression coil spring, 41
. . . retainer, 42 . . . cylindrical portion, 43 . . . flange portion, 45 .
Claims (1)
１のプランジャ要素のシリンダボアに摺動可能に嵌装さ
れ、上方に開いたカップ状の第２のプランジャ要素とを
有し、該第２のプランジャ要素の上端部は端板により封
鎖され、該第２のプランジャ要素の内部には該端板によ
って郭定された油室が形成され、該油室にはエンジンの
オイルポンプより常時油が供給されており、前記第１の
プランジャ要素内には前記第２のプランジャ要素の下端
壁によって上限を限られた圧力室が形成されており、前
記第２のプランジャ要素の下端壁周縁には該圧力室内に
延びるスカート部が設けられ、前記第２のプランジャ要
素の下端壁には前記油室と前記圧力室とを連通ずる連通
孔が穿設されており、前記圧力室内には、該連通孔を通
って前記油室より前記圧力室に向かう油の流れのみを許
容する逆止弁と、前記第２のプランジャ要素を前記第・
１のプランジャ要素から引き方向に作用する第１
の圧縮コイルばねとが配置され、前記逆止弁は、ホール
と第２の圧縮コイルばねと、該ボールと該第２の圧縮コ
イルばねを保持するリテーナとから成り、該リテーナは
、前記第１の圧縮コイルばねの内径より小さい外径を有
する円筒部と、前記第１の圧縮コイルばねを外径より大
きい外径を有するフランジ部とから成り、前記リテーナ
と前記第１の圧縮コイルばねとは同心状に配置され、前
記リテーナのフランジ部が前記第１の圧縮コイルばねに
押圧されて前記リテーナ全体が第２のプランジャ要素の
下端壁の下面に固定され、前記リテーナの円筒部内部に
は、前記第２の圧縮コイルばねと、前記第２の圧縮コイ
ルばねの押圧力により前記圧力室側から前記連通孔を封
鎖する前記ボールとが配置され、前記第２のプランジャ
要素のスカート部の内側には円環状の凹溝が穿設され、
前記リテーナのフランジ部の外周縁部は該凹溝に遊嵌さ
れていることを特徴とする油圧式バルブリフタ装置。a cup-shaped first plunger element that opens upward; and a cup-shaped second plunger element that opens upward and is slidably fitted in a cylinder bore of the first plunger element; The upper end of the second plunger element is sealed by an end plate, and an oil chamber defined by the end plate is formed inside the second plunger element, and the oil chamber is constantly supplied with oil from the engine's oil pump. is supplied, a pressure chamber whose upper limit is limited by the lower end wall of the second plunger element is formed in the first plunger element, and a pressure chamber whose upper limit is limited by the lower end wall of the second plunger element is formed in the first plunger element. A skirt portion extending into the pressure chamber is provided, and a communication hole is provided in the lower end wall of the second plunger element to communicate the oil chamber and the pressure chamber. a check valve that only allows oil to flow from the oil chamber toward the pressure chamber through the hole;
a first plunger element acting in the pulling direction from one plunger element;
The check valve includes a hole, a second compression coil spring, and a retainer for holding the ball and the second compression coil spring. a cylindrical part having an outer diameter smaller than the inner diameter of the first compression coil spring; and a flange part having an outer diameter larger than the outer diameter of the first compression coil spring; The flange portion of the retainer is pressed by the first compression coil spring so that the entire retainer is fixed to the lower surface of the lower end wall of the second plunger element, and the cylindrical portion of the retainer includes: The second compression coil spring and the ball that seals the communication hole from the pressure chamber side by the pressing force of the second compression coil spring are disposed inside the skirt portion of the second plunger element. has an annular concave groove,
A hydraulic valve lifter device, wherein an outer peripheral edge of the flange portion of the retainer is loosely fitted into the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3597883U JPS59141107U (en) | 1983-03-11 | 1983-03-11 | Hydraulic valve lifter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3597883U JPS59141107U (en) | 1983-03-11 | 1983-03-11 | Hydraulic valve lifter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59141107U true JPS59141107U (en) | 1984-09-20 |
Family
ID=30166649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3597883U Pending JPS59141107U (en) | 1983-03-11 | 1983-03-11 | Hydraulic valve lifter device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59141107U (en) |
-
1983
- 1983-03-11 JP JP3597883U patent/JPS59141107U/en active Pending
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