JPS641445Y2 - - Google Patents
Info
- Publication number
- JPS641445Y2 JPS641445Y2 JP1981000924U JP92481U JPS641445Y2 JP S641445 Y2 JPS641445 Y2 JP S641445Y2 JP 1981000924 U JP1981000924 U JP 1981000924U JP 92481 U JP92481 U JP 92481U JP S641445 Y2 JPS641445 Y2 JP S641445Y2
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- governor
- cylinder head
- valve arm
- crankcase
- 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.)
- Expired
Links
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
本考案は、シリンダヘツド内にカム軸を有し、
該カム軸の端部にガバナ装置を装着したオーバヘ
ツドカム式内燃機関のシリンダヘツドに関する。[Detailed description of the invention] The invention has a camshaft in the cylinder head,
The present invention relates to a cylinder head of an overhead cam type internal combustion engine in which a governor device is attached to the end of the camshaft.
この種の内燃機関では、ガバナ装置の摺動部
（例えば、ガバナウエイトを動かすガバナスピン
ドル等）には、潤滑油を供給して潤滑する必要が
あるが、ガバナ装置への潤滑油の供給量が増える
と、回転するガバナウエイトの回転力により潤滑
油が撹拌され、その結果不必要な動力が消費され
ると共に、ブローバイガス中の油量が極端に増大
しブリーザからのオイルの吹き出しが増大すると
云う不都合を生じる。 In this type of internal combustion engine, it is necessary to supply lubricating oil to the sliding parts of the governor device (for example, the governor spindle that moves the governor weight), but the amount of lubricating oil supplied to the governor device is limited. If it increases, the lubricating oil will be agitated by the rotational force of the rotating governor weight, resulting in unnecessary power consumption and the amount of oil in the blow-by gas will increase dramatically, increasing the amount of oil blown out from the breather. cause inconvenience.
本考案は、上記のような不都合の発生を防止し
ようとするものであつて、ガバナ装置を内蔵した
ガバナ室に過量な潤滑油が溜まるのを防止するこ
とにより、所期の目的を達成しようとするもので
ある。 The present invention aims to prevent the above-mentioned inconvenience from occurring, and aims to achieve the intended purpose by preventing an excessive amount of lubricating oil from accumulating in the governor chamber containing the governor device. It is something to do.
そのために本考案では、カム軸をシリンダヘツ
ド上面よりも低い位置に設けると共に、ガバナ室
の底面がカム室の底面よりも低位置設け、このガ
バナ室の底面にクランクケースに連通する油穴を
設けた構成となつている。したがつて、本考案に
よれば弁腕部分を潤滑した潤滑油は、カム室に流
入し、カム面を注油した後ガバナ室に導入し、該
ガバナ室の底面に設けた油穴からクランクケース
に排出することになるから、ガバナ室に潤滑油は
溜まることはなく、前述の不都合を解決すること
ができるものである。 To this end, in the present invention, the camshaft is located lower than the top surface of the cylinder head, the bottom surface of the governor chamber is located lower than the bottom surface of the cam chamber, and the bottom surface of the governor chamber is provided with an oil hole that communicates with the crankcase. The structure is as follows. Therefore, according to the present invention, the lubricating oil that has lubricated the valve arm portion flows into the cam chamber, lubricates the cam surface, and then is introduced into the governor chamber, and is then passed through the oil hole provided in the bottom of the governor chamber to the crankcase. Since the lubricating oil is discharged into the governor chamber, the lubricating oil does not accumulate in the governor chamber, and the above-mentioned inconvenience can be solved.
以下図面を参照して本考案の実施例を説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.
まず、第１図及び第１図のＡ−Ａ方向の正断面
図である第２図に示す本考案の実施例におけるデ
イーゼル機関のシリンダヘツド１上に取付けられ
たボンネツト２内の弁腕室３には、吸排気弁を駆
動する吸気弁腕４及び排気弁腕５が設けられ、ま
た吸気弁腕４及び排気弁腕５の間には、燃料噴射
装置であるユニツトインジエクタ６及びそれを駆
動する燃料弁腕７が設けられ、これら吸気弁腕
４、排気弁腕５及び燃料弁腕７はシリンダヘツド
１内に設けられた一本のカム軸８の同軸上に形成
された各カムにより揺動されるようになつてい
る。 First, a valve arm chamber 3 in a bonnet 2 installed on a cylinder head 1 of a diesel engine in an embodiment of the present invention shown in FIG. is provided with an intake valve arm 4 and an exhaust valve arm 5 that drive the intake and exhaust valves, and between the intake valve arm 4 and the exhaust valve arm 5 is a unit injector 6 that is a fuel injection device and a unit injector 6 that drives it. A fuel valve arm 7 is provided, and these intake valve arm 4, exhaust valve arm 5, and fuel valve arm 7 are oscillated by respective cams formed coaxially with one camshaft 8 provided in the cylinder head 1. It is becoming more and more popular.
このカム軸８の一方の端部にはガバナ装置９が
装着され、そのガバナ装置９を内蔵するガバナ室
１０がシリンダヘツド１内に形成されており、こ
のガバナ室１０の上部は弁腕室３に連通してい
る。 A governor device 9 is attached to one end of the camshaft 8, and a governor chamber 10 containing the governor device 9 is formed in the cylinder head 1. The upper part of the governor chamber 10 is connected to a valve arm chamber 3. is connected to.
次に、第３図は第１図のＢ−Ｂ方向のユニツト
インジエクタ６部分の断面を示す図面であり、カ
ム軸８の中心はシリンダヘツド１の上面１ａより
も低い位置にあり、弁腕室３内における吸気弁腕
４、排気弁腕５等の動弁装置及び燃料弁腕７等か
らなるユニツトインジエクタ６の駆動装置、更に
はカム軸８に設けられた各カム面の各揺動部に注
油された潤滑油は、シリンダヘツド１の上面１ａ
から全てカム室２０の底面２０ａに流下する。 Next, FIG. 3 is a cross-sectional view of the unit injector 6 taken along the line B-B in FIG. A driving device for a unit injector 6 consisting of a valve operating device such as an intake valve arm 4, an exhaust valve arm 5, etc. and a fuel valve arm 7, etc. in the chamber 3, and furthermore, each swing of each cam surface provided on a camshaft 8. The lubricating oil applied to the upper surface 1a of the cylinder head 1
All of the water flows down to the bottom surface 20a of the cam chamber 20.
また、カム軸８の外径はガバナ装置９の半径よ
よりも小さいのが通例であり、同じ弁腕室３内に
設けられたガバナ室１０の底面１０ａはカム室２
０の底面２０ａよりも更に低くななつており、し
たがつて潤滑油はカム室２０内でカム面を注油し
た後ガバナ室１０へと流下する。 Further, the outer diameter of the camshaft 8 is usually smaller than the radius of the governor device 9, and the bottom surface 10a of the governor chamber 10 provided in the same valve arm chamber 3 is
Therefore, the lubricating oil flows down into the governor chamber 10 after lubricating the cam surface within the cam chamber 20.
なお、ここで第２図に示すごとくボンネツト２
内におけるガバナ室１０の上部には、ブリーザ室
１２が設けられており、ブリーザ室１２にて分離
された油滴は、ブリーザ室１２の下部に設けた仕
切板１４に沿つて油出口１６からガバナ室１０の
底面１０ａに流下する。 Incidentally, here, as shown in Fig. 2, the bonnet 2
A breather chamber 12 is provided in the upper part of the governor chamber 10 in the interior, and the oil droplets separated in the breather chamber 12 are passed from the oil outlet 16 to the governor along the partition plate 14 provided at the lower part of the breather chamber 12. It flows down to the bottom surface 10a of the chamber 10.
そこで、上記底面１０ａには図示されていない
シリンダブロツクのクランクケースに連通する油
穴１９を設けており、弁腕室３内の潤滑油Ｌ及び
ブリーザ室からの潤滑油Ｌはこの油穴１９を通
り、クランクケース経由オイルパンに戻される。 Therefore, an oil hole 19 is provided in the bottom surface 10a that communicates with the crankcase of the cylinder block (not shown), and the lubricating oil L in the valve arm chamber 3 and the lubricating oil L from the breather chamber are passed through this oil hole 19. As expected, it is returned to the oil pan via the crankcase.
次に、第１図に示すごとくシリンダヘツド１の
上記油穴１９と反対側の上面１ａにもクランクケ
ースと連通する空気穴２１を設けている。 Next, as shown in FIG. 1, an air hole 21 communicating with the crankcase is also provided on the upper surface 1a of the cylinder head 1 on the opposite side from the oil hole 19.
この空気穴２１は、シリンダヘツド１における
一番高い位置に設けられ、しかも油穴１９とは各
シリンダをはさんで最も遠い位置に設けられてお
り、クランクケースの息抜き穴として使用され
る。 This air hole 21 is provided at the highest position in the cylinder head 1, and furthermore, is provided at the farthest position across each cylinder from the oil hole 19, and is used as a breathing hole for the crankcase.
上記の構成からなるシリンダヘツド１にあつて
は、弁腕室３内に配置された吸気弁腕４、排気弁
腕５等の動弁装置及び燃料弁腕７等から成るユニ
ツトインジエクタ６の駆動装置の各摺動部に注油
された潤滑油は、シリンダヘツド１の上面１ａか
ら、その全量がカム室２０に流下し、カム面を注
油する。 In the cylinder head 1 having the above configuration, a unit injector 6 consisting of a valve operating device such as an intake valve arm 4 and an exhaust valve arm 5 disposed in the valve arm chamber 3 and a fuel valve arm 7 is driven. The entire amount of lubricating oil applied to each sliding part of the device flows down from the upper surface 1a of the cylinder head 1 into the cam chamber 20, and lubricates the cam surface.
ガバナ室１０の底面１０ａはカム室２０の底面
２０ａよりも低く形成されているから、カム室２
０に流入した潤滑油は、ガバナ室１０へと流下
し、該ガバナ室１０の底面１０ａに設けた油穴１
９から、クランクケースへと流出する。 Since the bottom surface 10a of the governor chamber 10 is formed lower than the bottom surface 20a of the cam chamber 20, the cam chamber 2
The lubricating oil that has flowed into the governor chamber 10 flows down to the governor chamber 10, and the lubricating oil flows through the oil hole 1 provided in the bottom surface 10a of the governor chamber 10.
9 and flows into the crankcase.
したがつて、ガバナ室１０内に潤滑油が溜まる
ことはなく、ガバナ装置に過量の潤滑油が供給さ
れる事態を回避することができることになる。 Therefore, lubricating oil does not accumulate in the governor chamber 10, and it is possible to avoid a situation in which an excessive amount of lubricating oil is supplied to the governor device.
更に、本考案のものでは、最も高い位置に設け
られた空気穴２１と、最も低い位置に設けられた
油穴１９とにより、弁腕室３とクランクケースと
が連通されることになり、しかも本実施例のよう
な多気筒機関の場合にはそれぞれ別の気筒のクラ
ンクケースの端部で油穴１９と空気穴２１とが連
通することになり、油穴１９は油戻し用のみに使
用され、一方空気穴２１は息抜き用にのみ使用さ
れることになるから、クランクケースからのオイ
ルミストの吹き上げが防止できる。 Furthermore, in the present invention, the valve arm chamber 3 and the crankcase are communicated with each other by the air hole 21 provided at the highest position and the oil hole 19 provided at the lowest position. In the case of a multi-cylinder engine as in this embodiment, the oil hole 19 and the air hole 21 communicate with each other at the ends of the crankcases of different cylinders, and the oil hole 19 is used only for returning oil. On the other hand, since the air hole 21 is used only for breathing, it is possible to prevent oil mist from blowing up from the crankcase.
このように、本考案によれば、ガバナ装置への
過量の潤滑油の供給が防止できると共に、シリン
ダヘツド上の弁腕室内とクランクケース内との息
抜き用の空気穴と、弁腕室内からクランクケース
への潤滑油戻し用の油穴とがそれぞれ別々の機能
をもつことになり、クランクケースからのオイル
ミストの吹き上げが防止でき、弁腕室内からクラ
ンクケース内への潤滑油の戻しをスムースに行な
わせることができる。 As described above, according to the present invention, it is possible to prevent an excessive amount of lubricating oil from being supplied to the governor device, and the air hole for breathing between the valve arm chamber on the cylinder head and the inside of the crankcase, as well as the supply of lubricating oil from the valve arm chamber to the crankcase. The oil holes for returning lubricating oil to the case each have separate functions, which prevents oil mist from blowing up from the crankcase and allows smooth return of lubricating oil from the valve arm chamber into the crankcase. I can make you do it.
第１図は本考案の実施例におけるデイーゼル機
関の弁腕室要部を示す平面図、第２図は第１図の
Ａ−Ａ方向の正断面図、第３図は第１図のＢ−Ｂ
方向の正断面図である。
１……シリンダヘツド、１ａ……上面、８……
カム軸、９……ガバナ装置、１０……ガバナ室、
１０ａ……底面、１９……油穴、２１……空気
穴。
FIG. 1 is a plan view showing the main parts of the valve arm chamber of a diesel engine according to an embodiment of the present invention, FIG. 2 is a front sectional view taken along the line A-A in FIG. 1, and FIG. B
It is a front sectional view of the direction. 1...Cylinder head, 1a...Top surface, 8...
Cam shaft, 9... Governor device, 10... Governor chamber,
10a...bottom, 19...oil hole, 21...air hole.
Claims (1)
の弁腕室に吸排気弁を駆動する吸気弁腕と排気弁
腕を設け、これら両弁腕を駆動するカム軸をシリ
ンダヘツドの上面より低い位置に設け、このカム
軸の一方の端部にガバナ装置を設け、該ガバナ装
置を内蔵するガバナ室をその底面がカム室の底面
より低くなるようにシリンダヘツド内に形成し、
ガバナ室の上部を弁腕室に連通すると共に、該ガ
バナ室の底面にシリンダブロツクのクランクケー
スに連通する油穴を設け、更に、該シリンダヘツ
ドの該油穴と反対側の上面に該クランクケースと
連通する空気穴を設けたことを特徴とするオーバ
ヘツドカム式内燃機関のシリンダヘツド。 An intake valve arm and an exhaust valve arm for driving intake and exhaust valves are provided in a valve arm chamber in a bonnet mounted on the cylinder head, and a camshaft for driving both valve arms is provided at a position lower than the top surface of the cylinder head. A governor device is provided at one end of the camshaft, and a governor chamber containing the governor device is formed in the cylinder head so that its bottom surface is lower than the bottom surface of the cam chamber;
The upper part of the governor chamber communicates with the valve arm chamber, and the bottom of the governor chamber is provided with an oil hole that communicates with the crankcase of the cylinder block, and the crankcase is provided on the upper surface of the cylinder head opposite to the oil hole. A cylinder head for an overhead cam type internal combustion engine, characterized by having an air hole communicating with the cylinder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981000924U JPS641445Y2 (en) | 1981-01-09 | 1981-01-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981000924U JPS641445Y2 (en) | 1981-01-09 | 1981-01-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57115936U JPS57115936U (en) | 1982-07-17 |
| JPS641445Y2 true JPS641445Y2 (en) | 1989-01-13 |
Family
ID=29799462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981000924U Expired JPS641445Y2 (en) | 1981-01-09 | 1981-01-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS641445Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7124977B2 (en) | 2003-10-15 | 2006-10-24 | Actown Electrocoil, Inc. | Magnetic core winding apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52166042U (en) * | 1976-06-11 | 1977-12-16 | ||
| JPS55158207U (en) * | 1979-05-04 | 1980-11-13 |
-
1981
- 1981-01-09 JP JP1981000924U patent/JPS641445Y2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7124977B2 (en) | 2003-10-15 | 2006-10-24 | Actown Electrocoil, Inc. | Magnetic core winding apparatus |
| US7154368B2 (en) | 2003-10-15 | 2006-12-26 | Actown Electricoil, Inc. | Magnetic core winding method, apparatus, and product produced therefrom |
| US7159816B2 (en) | 2003-10-15 | 2007-01-09 | Actown Electricoil, Inc. | Magnetic core winding method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57115936U (en) | 1982-07-17 |
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