JPS63183405U - - Google Patents
Info
- Publication number
- JPS63183405U JPS63183405U JP7376187U JP7376187U JPS63183405U JP S63183405 U JPS63183405 U JP S63183405U JP 7376187 U JP7376187 U JP 7376187U JP 7376187 U JP7376187 U JP 7376187U JP S63183405 U JPS63183405 U JP S63183405U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- actuator
- combustion engine
- internal combustion
- drive device
- 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
- 239000012530 fluid Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Description
第１〜３図は本考案の第１実施例で第１図はシ
ステム全体構成図、第２図はアクチユエータの開
弁開始時の作用説明図、第３図は同閉弁直前のク
ツシヨン作用説明図、第４図は第２実施例の断面
図である。
４…油圧発生器のピストン、５…同カム、８…
アクチユエータのシリンダ、９…同ピストン、１
２…油圧発生器、１３…アクチユエータ、１５…
油圧発生器の油室、２２…クツシヨン片、２３…
クツシヨン室、２４…アクチユエータの油室、２
５…絞り。
Figures 1 to 3 are the first embodiment of the present invention, Figure 1 is an overall system configuration diagram, Figure 2 is an illustration of the action of the actuator when the valve starts to open, and Figure 3 is an explanation of the action of the cushion just before the valve is closed. 4 are sectional views of the second embodiment. 4... Piston of the hydraulic generator, 5... Cam, 8...
Actuator cylinder, 9...Same piston, 1
2... Hydraulic generator, 13... Actuator, 15...
Oil chamber of hydraulic generator, 22...Cushion piece, 23...
Cushion chamber, 24...actuator oil chamber, 2
5...Aperture.
Claims (1)
と、シリンダ内に前記カムと当接したピストンが
往復動自在に収容され非圧縮性流体が充満した油
室１５が形成された油圧発生器と、シリンダ内に
弁と当接したピストンが往復動自在に収容され非
圧縮性流体が充満され前記油圧発生器の油室１５
と連通したアクチユエータとを備えた内燃機関の
弁駆動装置において、アクチユエータのピストン
に嵌挿されたセンタ穴付のクツシヨン片２２と、
該クツシヨン片の下部に設けられたクツシヨン室
２３と、ピストンの上下動により前記クツシヨン
室と油室２４との通路をそれぞれ絞り又は開放す
る手段とを有してなる内燃機関の弁駆動装置。 A hydraulic generator including a cam that rotates in synchronization with a crankshaft of an internal combustion engine, and a cylinder in which a piston in contact with the cam is reciprocably housed and an oil chamber 15 filled with incompressible fluid is formed; A piston in contact with a valve is housed in a cylinder so as to be able to reciprocate, and is filled with incompressible fluid.
In the valve drive device for an internal combustion engine, the valve drive device includes an actuator communicating with the actuator, a cushion piece 22 with a center hole fitted into the piston of the actuator;
A valve drive device for an internal combustion engine, comprising a cushion chamber 23 provided at the lower part of the cushion piece, and means for respectively constricting or opening passages between the cushion chamber and the oil chamber 24 by vertical movement of a piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987073761U JPH057451Y2 (en) | 1987-05-19 | 1987-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987073761U JPH057451Y2 (en) | 1987-05-19 | 1987-05-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63183405U true JPS63183405U (en) | 1988-11-25 |
| JPH057451Y2 JPH057451Y2 (en) | 1993-02-25 |
Family
ID=30918380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987073761U Expired - Lifetime JPH057451Y2 (en) | 1987-05-19 | 1987-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH057451Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010050702A3 (en) * | 2008-10-27 | 2010-08-05 | 현대중공업 주식회사 | Apparatus for controlling the degree of damping during the shut-off of an exhaust valve of a large diesel engine |
| WO2010050701A3 (en) * | 2008-10-27 | 2010-08-05 | 현대중공업 주식회사 | Damping apparatus for exhaust valve for preventing cavitation in hydraulic exhaust valve-driving apparatus of large diesel engine |
| JP2013501870A (en) * | 2009-08-07 | 2013-01-17 | ジェイコブス ビークル システムズ、インコーポレイテッド | Idling variable valve actuator with valve catch piston |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6193214A (en) * | 1984-10-12 | 1986-05-12 | Sumitomo Heavy Ind Ltd | Hydraulic type exhaust valve opening and closing device |
-
1987
- 1987-05-19 JP JP1987073761U patent/JPH057451Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6193214A (en) * | 1984-10-12 | 1986-05-12 | Sumitomo Heavy Ind Ltd | Hydraulic type exhaust valve opening and closing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010050702A3 (en) * | 2008-10-27 | 2010-08-05 | 현대중공업 주식회사 | Apparatus for controlling the degree of damping during the shut-off of an exhaust valve of a large diesel engine |
| WO2010050701A3 (en) * | 2008-10-27 | 2010-08-05 | 현대중공업 주식회사 | Damping apparatus for exhaust valve for preventing cavitation in hydraulic exhaust valve-driving apparatus of large diesel engine |
| KR100981019B1 (en) | 2008-10-27 | 2010-09-07 | 현대중공업 주식회사 | Apparatus for adjusting damping quantity at the closing time of exhaust valve in the large diesel engine |
| JP2013501870A (en) * | 2009-08-07 | 2013-01-17 | ジェイコブス ビークル システムズ、インコーポレイテッド | Idling variable valve actuator with valve catch piston |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH057451Y2 (en) | 1993-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63183405U (en) | ||
| JPS6199612U (en) | ||
| JPH0220783U (en) | ||
| JPS6199611U (en) | ||
| JPH0479946U (en) | ||
| JPH027327U (en) | ||
| JPS633366Y2 (en) | ||
| JPS63158563U (en) | ||
| JPS63141814U (en) | ||
| JPH02103540U (en) | ||
| JPS62152008U (en) | ||
| JPS63186936U (en) | ||
| JPS6199607U (en) | ||
| JPS61159635U (en) | ||
| JPS6151454U (en) | ||
| JPS6314815U (en) | ||
| JPH01125827U (en) | ||
| JPH02101003U (en) | ||
| JPH01113131U (en) | ||
| JPS58186105U (en) | Internal combustion engine valve drive device | |
| JPS61138845U (en) | ||
| JPS63141808U (en) | ||
| JPH0222608U (en) | ||
| JPH035926U (en) | ||
| JPS61101605U (en) |