JPH046709U - - Google Patents
Info
- Publication number
- JPH046709U JPH046709U JP4780790U JP4780790U JPH046709U JP H046709 U JPH046709 U JP H046709U JP 4780790 U JP4780790 U JP 4780790U JP 4780790 U JP4780790 U JP 4780790U JP H046709 U JPH046709 U JP H046709U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- camshaft
- rocker arm
- rocker arms
- side rocker
- 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 description 8
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 claims 1
Landscapes
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図ないし第６図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
−線断面図、第３図は第２図の−線断面図
、第４図は第１図の−線矢視図、第５図は第
１図の−線断面図、第６図は第１図の−
線断面図、第７図は本考案の他の実施例の要部縦
断面図である。
５……燃焼室、１６……カムシヤフト、１６ａ
……ジヤーナル部、１７……第１吸気側ロツカア
ーム、１８……第２吸気側ロツカアーム、１９…
…第３吸気側ロツカアーム、２０……排気側ロツ
カアーム、２６……ロツカシヤフト、４５……油
圧式連結切換機構、５４……油圧供給路、５５…
…油圧源としての油圧ポンプ、５７……制御弁、
６３……潤滑油給油路、６９，７０，７１，７３
……噴出ノズル、ＶＥ１，ＶＥ２……排気弁、Ｖ
Ｉ１，ＶＩ２……吸気弁。
1 to 6 show an embodiment of the present invention, in which FIG. 1 is a vertical cross-sectional view of the main part of an internal combustion engine, and is a cross-sectional view taken along the - line in FIG. 3 is a sectional view taken along the - line in FIG. 2, FIG. 4 is a sectional view along the - line in FIG. 1, FIG. 5 is a sectional view taken along the - line in FIG. Figure 1 -
A line sectional view and FIG. 7 are longitudinal sectional views of main parts of another embodiment of the present invention. 5... Combustion chamber, 16... Camshaft, 16a
...Journal part, 17...First intake side rocker arm, 18...Second intake side rocker arm, 19...
...Third intake side locking arm, 20... Exhaust side locking arm, 26... Locking shaft, 45... Hydraulic connection switching mechanism, 54... Hydraulic pressure supply path, 55...
...Hydraulic pump as a hydraulic power source, 57...Control valve,
63... Lubricating oil supply path, 69, 70, 71, 73
...Blowout nozzle, VE 1 , VE 2 ...Exhaust valve, V
I 1 , VI 2 ... Intake valve.
Claims (1)
１６が回転作動可能に配設され、該カムシヤフト
１６と一対の吸気弁ＶＩ１，ＶＩ２との間には、
両吸気弁ＶＩ１，ＶＩ２に個別に連動、連結され
る第１および第２吸気側ロツカアーム１７，１８
と、両吸気弁ＶＩ１，ＶＩ２に対して自由となる
ことを可能としながら第１および第２吸気側ロツ
カアーム１７，１８間に配置される第３吸気側ロ
ツカアーム１９とが介設され、前記カムシヤフト
１６および一対の排気弁ＶＥ１，ＶＥ２間には排
気側ロツカアーム２０，２０が介設され、各吸気
側ロツカアーム１７〜１９には、油圧作用に応じ
た各吸気側ロツカアーム１７〜１９の連結状態と
、油圧解放に応じた連結解除状態とを切換可能に
構成された油圧式連結切換機構４５が設けられる
ＳＯＨＣ型内燃機関において、カムシヤフト１６
の下方位置には、各吸気側ロツカアーム１７〜１
９および排気側ロツカアーム２０，２０を揺動可
能に支承する単一のロツカシヤフト２６が固定的
に配設され、該ロツカシヤフト２６には、油圧源
５５に制御弁５７を介して接続されるとともに油
圧式連結切換機構４５に連なる油圧供給路５４と
、カムシヤフト１６のジヤーナル部１６ａならび
に各ロツカアーム１７〜１９，２０，２０のうち
選択されたロツカアームとカムシヤフト１６に設
けられたカムとの摺接部に潤滑油を導くべく前記
油圧源５５に接続される潤滑油給油路６３とが平
行に穿設されることを特徴とするＳＯＨＣ型内燃
機関。 第３吸気側ロツカアーム１９には、カムシヤ
フト１６に設けられたカム２２および第３吸気側
ロツカアーム１９の摺接部に向けて潤滑油を供給
するための噴出ノズル７３が油圧供給路５４に連
通しながら設けられることを特徴とする請求項第
項記載のＳＯＨＣ型内燃機関。 吸気側ロツカアーム１７，１８，１９ならび
に排気側ロツカアーム２０，２０には、それらの
ロツカアーム１７〜１９，２０，２０とカムシヤ
フト１６に設けられたカム２３，２４，２２，２
５，２５との摺接部に向けて潤滑油を噴出するた
めの噴出ノズル６９，７０，７３，７１，７１が
、各ロツカアーム１７，１８，２０，２０の揺動
姿勢に応じて油圧源５５に連通すべくそれぞれ設
けられることを特徴とする請求項第項記載のＳ
ＯＨＣ型内燃機関。[Claims for Utility Model Registration] A single camshaft 16 is rotatably disposed above the combustion chamber 5, and between the camshaft 16 and the pair of intake valves VI 1 and VI 2 ,
First and second intake side rocker arms 17 and 18 are individually interlocked and connected to both intake valves VI 1 and VI 2 .
and a third intake-side rocker arm 19 disposed between the first and second intake-side rocker arms 17 and 18 while allowing the intake valves VI 1 and VI 2 to be free. Exhaust side rocker arms 20, 20 are interposed between the camshaft 16 and the pair of exhaust valves VE1 , VE2 , and each intake side rocker arm 17-19 is connected to each intake side rocker arm 17-19 according to hydraulic action. In the SOHC type internal combustion engine, the camshaft 16 is provided with a hydraulic connection switching mechanism 45 that is configured to be able to switch between the connection state and the connection release state in accordance with hydraulic pressure release.
At the lower position of each intake side rocker arm 17 to 1
A single rocker shaft 26 that swingably supports the rocker arms 9 and the exhaust side rocker arms 20, 20 is fixedly disposed, and the rocker shaft 26 is connected to a hydraulic power source 55 via a control valve 57 and has a hydraulic type. Lubricating oil is applied to the hydraulic pressure supply path 54 connected to the connection switching mechanism 45, the journal portion 16a of the camshaft 16, and the sliding contact portion between the rocker arm selected from among the rocker arms 17 to 19, 20, and 20 and the cam provided on the camshaft 16. A SOHC type internal combustion engine characterized in that a lubricating oil supply passage 63 connected to the hydraulic pressure source 55 is bored in parallel to guide the oil pressure. A jet nozzle 73 for supplying lubricating oil toward the sliding contact portion of the cam 22 provided on the camshaft 16 and the third intake rocker arm 19 is connected to the hydraulic pressure supply path 54 in the third intake rocker arm 19 . An SOHC internal combustion engine according to claim 1, characterized in that the SOHC internal combustion engine is provided with: The intake side rocker arms 17, 18, 19 and the exhaust side rocker arms 20, 20 have cams 23, 24, 22, 2 provided on the rocker arms 17 to 19, 20, 20 and the camshaft 16.
The injection nozzles 69, 70, 73, 71, 71 for ejecting lubricating oil toward the sliding contact parts with the hydraulic power source 55 correspond to the swinging posture of each rocker arm 17, 18, 20, 20. S according to claim 1, characterized in that each S is provided to communicate with the
OHC type internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4780790U JPH046709U (en) | 1990-05-08 | 1990-05-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4780790U JPH046709U (en) | 1990-05-08 | 1990-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH046709U true JPH046709U (en) | 1992-01-22 |
Family
ID=31564066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4780790U Pending JPH046709U (en) | 1990-05-08 | 1990-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH046709U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011096433A1 (en) * | 2010-02-04 | 2011-08-11 | ヤンマー株式会社 | Engine |
| JP2012092841A (en) * | 2011-11-30 | 2012-05-17 | Yanmar Co Ltd | Engine |
-
1990
- 1990-05-08 JP JP4780790U patent/JPH046709U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011096433A1 (en) * | 2010-02-04 | 2011-08-11 | ヤンマー株式会社 | Engine |
| CN102753791A (en) * | 2010-02-04 | 2012-10-24 | 洋马株式会社 | Engine |
| JP2012092841A (en) * | 2011-11-30 | 2012-05-17 | Yanmar Co Ltd | Engine |
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