JPH0224010U - - Google Patents
Info
- Publication number
- JPH0224010U JPH0224010U JP10210688U JP10210688U JPH0224010U JP H0224010 U JPH0224010 U JP H0224010U JP 10210688 U JP10210688 U JP 10210688U JP 10210688 U JP10210688 U JP 10210688U JP H0224010 U JPH0224010 U JP H0224010U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- rocker
- engine
- rocker shaft
- cam
- 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 description 3
- 239000003921 oil Substances 0.000 claims 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 claims 1
- 239000010687 lubricating oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Description
図面は本考案の一実施例を示すもので、第１図
は内燃機関の要部縦断面図であつて第２図の―
線断面図、第２図は第１図の―線矢視図、
第３図は第２図の―線断面図、第４図は第１
図の―線断面図、第５図は第２図の―線
断面図、第６図は連結切換機構を示すための横断
面図、第７図は給油系統を示す図、第８図は第２
図の―線矢視図、第９図は第８図の―線
断面図、第１０図は第８図の―線に沿う切換
弁閉弁時の拡大断面図、第１０Ａ図は第１０図の
ＸＡ部拡大図、第１１図は第２図の―線
断面図、第１２図は切換弁開弁時の第１０図に対
応した断面図である。
３……シリンダヘツド、１０ｉ……機関弁とし
ての吸気弁、１０ｅ……機関弁としての排気弁、
１７ｉ，１７ｅ……動弁装置、１９ｉ，１９ｅ，
２０ｉ，２０ｅ，２１ｉ，２１ｅ……カム、２２
ｉ，２２ｅ……ロツカシヤフト、２３ｉ，２３ｅ
，２４ｉ，２４ｅ，２５ｉ，２５ｅ……ロツカア
ーム、２６ｉ，２６ｅ……油圧式連結切換機構、
５８ｉ，５８ｅ……給油路、６４……油圧供給源
としてのオイルポンプ、６９……切換弁、７５ｉ
，７５ｅ……潤滑路、８９……入口ポート、９０
……出口ポート、９１……ハウジング、９２……
スプール弁体、１０１……オリフイス孔。
The drawings show one embodiment of the present invention, and FIG. 1 is a vertical sectional view of the main part of an internal combustion engine, and FIG.
Line sectional view, Figure 2 is a - line arrow view of Figure 1,
Figure 3 is a cross-sectional view taken along the line - in Figure 2, and Figure 4 is a cross-sectional view of Figure 1.
Figure 5 is a cross-sectional view taken along the line - in Figure 2, Figure 6 is a cross-sectional view showing the connection switching mechanism, Figure 7 is a diagram showing the oil supply system, and Figure 8 is a cross-sectional view taken along the line - in Figure 2. 2
Figure 9 is a cross-sectional view taken along line - in Figure 8, Figure 10 is an enlarged cross-sectional view taken along line - in Figure 8 when the switching valve is closed, and Figure 10A is Figure 10. 11 is a sectional view taken along the line -- in FIG. 2, and FIG. 12 is a sectional view corresponding to FIG. 10 when the switching valve is open. 3... Cylinder head, 10i... Intake valve as engine valve, 10e... Exhaust valve as engine valve,
17i, 17e... Valve gear, 19i, 19e,
20i, 20e, 21i, 21e...cam, 22
i, 22e...Lotsuka shaft, 23i, 23e
, 24i, 24e, 25i, 25e... Locker arm, 26i, 26e... Hydraulic connection switching mechanism,
58i, 58e...Oil supply path, 64...Oil pump as a hydraulic pressure supply source, 69...Switching valve, 75i
, 75e... Lubrication path, 89... Inlet port, 90
...Exit port, 91...Housing, 92...
Spool valve body, 101...orifice hole.
Claims (1)
開閉駆動すべくロツカシヤフトに支承され、それ
らのロツカアームには機関の運転状態に応じて相
互の連結および連結解除を油圧に応じて切換可能
な油圧式連結切換機構が設けられ、前記カムおよ
びロツカアームの摺接部に潤滑油を供給するため
の潤滑路と、前記油圧式連結切換機構とに通じる
給油路がロツカシヤフト内に設けられ、該給油路
と油圧供給源との間には切換弁が介設される内燃
機関用動弁装置において、切換弁は、油圧供給源
に通じる入口ポートならびに給油路に通じる出口
ポートを有するハウジングに、入口ポートおよび
出口ポート間の連通、遮断を切換可能なスプール
弁体が摺動可能に嵌合されて成り、ハウジングに
は入口ポートおよび出口ポート間を連通するオリ
フイス孔が穿設されることを特徴とする内燃機関
用動弁装置。 A plurality of rocker arms that slide on the cam are supported by a rocker shaft to open and close the engine valve, and these rocker arms are equipped with a hydraulic coupling switch that can connect and disconnect each other depending on the operating state of the engine. A mechanism is provided in the rocker shaft, and a lubricating path for supplying lubricating oil to the sliding contact portion of the cam and the rocker arm, and an oil supply path communicating with the hydraulic connection switching mechanism are provided in the rocker shaft, and the oil supply path and a hydraulic pressure supply source are provided. In a valve train for an internal combustion engine in which a switching valve is interposed between A valve for an internal combustion engine, characterized in that a spool valve body that can switch between communication and cutoff is slidably fitted, and the housing is provided with an orifice hole that communicates between an inlet port and an outlet port. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988102106U JPH0720325Y2 (en) | 1988-08-01 | 1988-08-01 | Valve drive for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988102106U JPH0720325Y2 (en) | 1988-08-01 | 1988-08-01 | Valve drive for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0224010U true JPH0224010U (en) | 1990-02-16 |
| JPH0720325Y2 JPH0720325Y2 (en) | 1995-05-15 |
Family
ID=31331706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988102106U Expired - Lifetime JPH0720325Y2 (en) | 1988-08-01 | 1988-08-01 | Valve drive for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0720325Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63167105A (en) * | 1986-12-27 | 1988-07-11 | 株式会社 日本ピスコ | Joint |
| JPS63167009A (en) * | 1986-12-27 | 1988-07-11 | Honda Motor Co Ltd | Valve system of internal combustion engine |
-
1988
- 1988-08-01 JP JP1988102106U patent/JPH0720325Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63167105A (en) * | 1986-12-27 | 1988-07-11 | 株式会社 日本ピスコ | Joint |
| JPS63167009A (en) * | 1986-12-27 | 1988-07-11 | Honda Motor Co Ltd | Valve system of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0720325Y2 (en) | 1995-05-15 |
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