JPH024911U - - Google Patents
Info
- Publication number
- JPH024911U JPH024911U JP8258888U JP8258888U JPH024911U JP H024911 U JPH024911 U JP H024911U JP 8258888 U JP8258888 U JP 8258888U JP 8258888 U JP8258888 U JP 8258888U JP H024911 U JPH024911 U JP H024911U
- Authority
- JP
- Japan
- Prior art keywords
- speed
- lubrication
- rocker arm
- low
- speed 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
- 238000005461 lubrication Methods 0.000 claims description 9
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (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１１図は第２図の
―線断面図、第１２図は切換弁開弁時の第１
０図に対応した断面図である。
１７ｉ，１７ｅ……動弁装置、１８ｉ，１８ｅ
……カムシヤフト、１９ｉ，１９ｅ，２０ｉ，２
０ｅ……低速用カム、２１ｉ，２１ｅ……高速用
カム、２３ｉ，２３ｅ，２４ｉ，２４ｅ，２５ｉ
，２５ｅ……ロツカアーム、２６ｉ，２６ｅ……
連結切換機構、７２ｉ，７２ｅ……通路形成部材
、７４ｉ，７４ｅ……低速用潤滑路、７５ｉ，７
５ｅ……高速用潤滑路、７６ｉ，７６ｅ……絞り
、８２ｉ，８２ｅ，８４ｉ，８４ｅ……潤滑油噴
出孔。
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 sectional view taken along the line - in Figure 8, Figure 10 is an enlarged sectional view taken along the line - in Figure 8 when the switching valve is closed, and Figure 11 is the view in Figure 2. Figure 12 is a cross-sectional view of
FIG. 2 is a sectional view corresponding to FIG. 17i, 17e...Valve train, 18i, 18e
...Camshaft, 19i, 19e, 20i, 2
0e...Low speed cam, 21i, 21e...High speed cam, 23i, 23e, 24i, 24e, 25i
, 25e...Rotsuka arm, 26i, 26e...
Connection switching mechanism, 72i, 72e... Passage forming member, 74i, 74e... Low speed lubrication path, 75i, 7
5e... High-speed lubrication path, 76i, 76e... Throttle, 82i, 82e, 84i, 84e... Lubricating oil jet hole.
Claims (1)
設けられ、それらのカムに個別に摺接するロツカ
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連結切
換機構が設けられる内燃機関用動弁装置において
、低速用カムおよびロツカアームの摺接部に向け
て潤滑油を噴出するための潤滑油噴出孔に通じる
低速用潤滑路と、高速用カムおよびロツカアーム
の摺接部に向けて潤滑油を噴出するための潤滑油
噴出孔に通じるとともに絞りを介して連結切換機
構に接続される高速用潤滑路とが相互に独立して
設けられ、前記低速用潤滑路を形成する通路形成
部材には高速用カムおよびロツカアームの摺接部
に向けて潤滑油を噴出すべく低速用潤滑路に連通
する潤滑油噴出孔が設けられることを特徴とする
内燃機関用動弁装置における潤滑油給油装置。 A low-speed cam and a high-speed cam are installed on the camshaft, and the rocker arm that individually slides into these cams has a connection switching mechanism that can switch between connecting and disconnecting them depending on the operating state of the engine according to hydraulic pressure. In a valve train for an internal combustion engine provided, a low-speed lubrication path leading to a lubricating oil jet hole for spouting lubricating oil toward a sliding contact portion of a high-speed cam and a rocker arm, and a sliding contact portion of a high-speed cam and a rocker arm. A high-speed lubrication path that communicates with a lubrication oil spout hole for spouting lubrication oil toward the lubrication oil outlet and is connected to the connection switching mechanism via a throttle is provided independently from each other to form the low-speed lubrication path. Lubrication in a valve train for an internal combustion engine, characterized in that a passage forming member is provided with a lubricating oil jetting hole communicating with a low speed lubricating passage so as to spout lubricating oil towards the sliding portion of a high speed cam and a rocker arm. Oil refueling device.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8258888U JPH0634566Y2 (en) | 1988-06-22 | 1988-06-22 | Lubricating oil supply device in valve train for internal combustion engine |
| CA000586965A CA1330026C (en) | 1987-12-28 | 1988-12-23 | Lubricant supplying system for dohc type multi-cylinder internal combustion engine |
| US07/290,313 US4928641A (en) | 1987-12-28 | 1988-12-27 | Lubricant supplying system for DOHC type multi-cylinder internal combustion engine |
| EP88312368A EP0323233B1 (en) | 1987-12-28 | 1988-12-28 | Lubricant supplying system for dohc type multi-cylinder internal combustion engine |
| DE8888312368T DE3874112T2 (en) | 1987-12-28 | 1988-12-28 | LUBRICATION DEVICE FOR MULTI-CYLINDRICAL INTERNAL COMBUSTION ENGINES WITH TWO OVERHEAD CAMSHAFTS. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8258888U JPH0634566Y2 (en) | 1988-06-22 | 1988-06-22 | Lubricating oil supply device in valve train for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH024911U true JPH024911U (en) | 1990-01-12 |
| JPH0634566Y2 JPH0634566Y2 (en) | 1994-09-07 |
Family
ID=31307336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8258888U Expired - Lifetime JPH0634566Y2 (en) | 1987-12-28 | 1988-06-22 | Lubricating oil supply device in valve train for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634566Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013072384A (en) * | 2011-09-28 | 2013-04-22 | Honda Motor Co Ltd | Variable valve device of internal combustion engine |
| JP2015178818A (en) * | 2014-03-19 | 2015-10-08 | 本田技研工業株式会社 | Internal combustion engine valve gear oil supply structure |
-
1988
- 1988-06-22 JP JP8258888U patent/JPH0634566Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013072384A (en) * | 2011-09-28 | 2013-04-22 | Honda Motor Co Ltd | Variable valve device of internal combustion engine |
| JP2015178818A (en) * | 2014-03-19 | 2015-10-08 | 本田技研工業株式会社 | Internal combustion engine valve gear oil supply structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0634566Y2 (en) | 1994-09-07 |
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