JPH03122208U - - Google Patents
Info
- Publication number
- JPH03122208U JPH03122208U JP2954990U JP2954990U JPH03122208U JP H03122208 U JPH03122208 U JP H03122208U JP 2954990 U JP2954990 U JP 2954990U JP 2954990 U JP2954990 U JP 2954990U JP H03122208 U JPH03122208 U JP H03122208U
- Authority
- JP
- Japan
- Prior art keywords
- swinging member
- camshaft
- cam
- cams
- valve
- 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
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
Description
第１図は本考案の一実施例に係る可変バルブ駆
動装置を表わす断面図、第２図は第１図中の−
線矢視図、第３図はカムの斜視図、第４図は低
速型カムと高速型カムのカムリフトを表わすグラ
フ、第５図乃至第８図は本考案の他の実施例に係
る可変バルブ駆動装置を表わす一部破断平面図で
ある。
図面中、１……バルブ、３……ロツカシヤフト
、３ａ……中空部、４，５１，７１……ロツカア
ーム、５……ピボツト、６……ローラシヤフト、
７……ローラ、８……シリンダ室、９……圧縮コ
イルばね、１２，１３……カム、１７……ピスト
ンである。
FIG. 1 is a sectional view showing a variable valve drive device according to an embodiment of the present invention, and FIG.
3 is a perspective view of the cam, FIG. 4 is a graph showing the cam lift of the low-speed cam and the high-speed cam, and FIGS. 5 to 8 are variable valves according to other embodiments of the present invention. FIG. 3 is a partially cutaway plan view showing the drive device. In the drawings, 1... valve, 3... rocker shaft, 3a... hollow part, 4, 51, 71... rocker arm, 5... pivot, 6... roller shaft,
7...Roller, 8...Cylinder chamber, 9...Compression coil spring, 12, 13...Cam, 17...Piston.
Claims (1)
当接部に当接することで該揺動部材によつてバル
ブを開閉駆動するバルブ駆動装置において、互い
にプロフイールの異なる複数のカムをカム軸に並
設し、前記当接部をカム軸の軸方向に沿つて前記
複数のカムの並設範囲で移動可能に支持し、当接
するカムの変更を行なうために前記当接部の駆動
を行なう駆動手段を前記揺動部材に設けたことを
特徴とする可変バルブ駆動装置。 In a valve drive device in which a cam provided on a rotating camshaft contacts a contact portion of a swinging member to open and close a valve by the swinging member, a plurality of cams with different profiles are mounted on the camshaft. a drive that supports the abutting portion movably along the axial direction of the camshaft within a range in which the plurality of cams are arranged side by side, and drives the abutting portion in order to change the cam to be abutted; A variable valve driving device characterized in that means is provided on the swinging member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2954990U JPH03122208U (en) | 1990-03-26 | 1990-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2954990U JPH03122208U (en) | 1990-03-26 | 1990-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03122208U true JPH03122208U (en) | 1991-12-13 |
Family
ID=31532303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2954990U Pending JPH03122208U (en) | 1990-03-26 | 1990-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03122208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019214982A (en) * | 2018-06-13 | 2019-12-19 | 株式会社オティックス | Variable valve mechanism of internal combustion engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63208604A (en) * | 1987-02-25 | 1988-08-30 | Mazda Motor Corp | Valve system for engine |
-
1990
- 1990-03-26 JP JP2954990U patent/JPH03122208U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63208604A (en) * | 1987-02-25 | 1988-08-30 | Mazda Motor Corp | Valve system for engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019214982A (en) * | 2018-06-13 | 2019-12-19 | 株式会社オティックス | Variable valve mechanism of internal combustion engine |
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