JPS61157108U - - Google Patents
Info
- Publication number
- JPS61157108U JPS61157108U JP3997185U JP3997185U JPS61157108U JP S61157108 U JPS61157108 U JP S61157108U JP 3997185 U JP3997185 U JP 3997185U JP 3997185 U JP3997185 U JP 3997185U JP S61157108 U JPS61157108 U JP S61157108U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust valve
- overflow holes
- piston
- cylinder
- sectional
- 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
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Valve Device For Special Equipments (AREA)
Description
第１図は油圧駆動排気弁の断面図、第２図は本
考案の一実施例の駆動ポンプ部の断面図、第３図
は第２図の実施例の駆動筐の断面図、第４図は従
来例の駆動ポンプ部の一例の断面図、第５図ａ，
ｂは第２図の実施例の低負荷時の作動を示す断面
図、第６図は本実施例を用いた場合の排気弁開閉
用タイミングの変化を示す排気弁リフトの比較図
である。
図において、１……排気カム、２……駆動筐、
３……衝棒、４……シリンダ、５……ピストン、
６……ピストンリング、７……排気弁駆動ピスト
ン、８……排気弁、９……高圧管、１０……制御
用ピストン、１１……溢出孔、１２……エアシリ
ンダ、１３……高圧管、１４……負荷信号、１５
……上下動。
Fig. 1 is a cross-sectional view of a hydraulically driven exhaust valve, Fig. 2 is a cross-sectional view of the driving pump section of an embodiment of the present invention, Fig. 3 is a cross-sectional view of the drive housing of the embodiment of Fig. 2, and Fig. 4. 5A is a sectional view of an example of a conventional driving pump part, and FIG.
b is a sectional view showing the operation of the embodiment shown in FIG. 2 under low load, and FIG. 6 is a comparison diagram of the exhaust valve lift showing changes in the timing for opening and closing the exhaust valve when this embodiment is used. In the figure, 1... Exhaust cam, 2... Drive case,
3...Strike rod, 4...Cylinder, 5...Piston,
6... Piston ring, 7... Exhaust valve drive piston, 8... Exhaust valve, 9... High pressure pipe, 10... Control piston, 11... Overflow hole, 12... Air cylinder, 13... High pressure pipe , 14...Load signal, 15
... Vertical movement.
Claims (1)
気弁駆動ポンプ部内のシリンダに高さの異なる複
数個の溢出孔を設け、かつ負荷信号により駆動筐
を上下動させて該溢出孔の開閉を行う制御用ピス
トンを設けたことを特徴とする排気弁タイミング
変更装置。 For internal combustion engines with hydraulically driven exhaust valves, a cylinder in the exhaust valve drive pump section is provided with multiple overflow holes of different heights, and the drive case is moved up and down in response to a load signal to open and close the overflow holes. An exhaust valve timing changing device characterized by being provided with a piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3997185U JPS61157108U (en) | 1985-03-20 | 1985-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3997185U JPS61157108U (en) | 1985-03-20 | 1985-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61157108U true JPS61157108U (en) | 1986-09-29 |
Family
ID=30548417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3997185U Pending JPS61157108U (en) | 1985-03-20 | 1985-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61157108U (en) |
-
1985
- 1985-03-20 JP JP3997185U patent/JPS61157108U/ja active Pending
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