JPH01149503U - - Google Patents
Info
- Publication number
- JPH01149503U JPH01149503U JP4621588U JP4621588U JPH01149503U JP H01149503 U JPH01149503 U JP H01149503U JP 4621588 U JP4621588 U JP 4621588U JP 4621588 U JP4621588 U JP 4621588U JP H01149503 U JPH01149503 U JP H01149503U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- buffer
- drive device
- chamber
- valve drive
- 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
- 239000010720 hydraulic oil Substances 0.000 claims 2
- 230000035939 shock Effects 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Valve Device For Special Equipments (AREA)
Description
第１図はこの考案の弁駆動装置の全体概略図。
第２図は第１図の−線に沿う断面図。第３図
はプランジヤの各ストロークにおける作動を説明
する図。第４図は時間に対するプランジヤ及びバ
ルブのリフト及び緩衝室圧力特性図。
１０……バルブ、１３……バルブスプリング、
２０……油圧アクチユエータ、２２……油室、２
６′……緩衝室、４４……環状溝、４５……横孔
、４７……凹部、４８…連通孔。
FIG. 1 is an overall schematic diagram of the valve drive device of this invention.
FIG. 2 is a sectional view taken along the - line in FIG. 1. FIG. 3 is a diagram illustrating the operation of the plunger at each stroke. FIG. 4 is a graph of plunger and valve lift and buffer chamber pressure characteristics with respect to time. 10... Valve, 13... Valve spring,
20... Hydraulic actuator, 22... Oil chamber, 2
6'...Buffer chamber, 44...Annular groove, 45...Horizontal hole, 47...Recess, 48...Communication hole.
Claims (1)
動装置において、プランジヤの或る方向へのスト
ロークの途中の位置からプランジヤが移動する側
のプランジヤの端面に作動油を封入するための衝
撃室を形成し、該衝撃室での緩衝作用を中間で一
時的に緩和するため緩衝室から作動油を抜く緩衝
緩和手段を有したことを特徴とする内燃機関の油
圧式弁駆動装置用の緩装置。 In a hydraulic valve drive device that operates a valve with a plunger, a shock chamber for sealing hydraulic oil is formed in the end face of the plunger on the side where the plunger moves from a position midway through the stroke of the plunger in a certain direction, 1. A relaxation device for a hydraulic valve drive device of an internal combustion engine, characterized in that it has a buffer relief means for removing hydraulic oil from the buffer chamber in order to temporarily relieve the buffer effect in the shock chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4621588U JPH01149503U (en) | 1988-04-07 | 1988-04-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4621588U JPH01149503U (en) | 1988-04-07 | 1988-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01149503U true JPH01149503U (en) | 1989-10-17 |
Family
ID=31272492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4621588U Pending JPH01149503U (en) | 1988-04-07 | 1988-04-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01149503U (en) |
-
1988
- 1988-04-07 JP JP4621588U patent/JPH01149503U/ja active Pending
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