JPS6019963Y2 - Internal combustion engine cooling system - Google Patents
Internal combustion engine cooling systemInfo
- Publication number
- JPS6019963Y2 JPS6019963Y2 JP15584978U JP15584978U JPS6019963Y2 JP S6019963 Y2 JPS6019963 Y2 JP S6019963Y2 JP 15584978 U JP15584978 U JP 15584978U JP 15584978 U JP15584978 U JP 15584978U JP S6019963 Y2 JPS6019963 Y2 JP S6019963Y2
- Authority
- JP
- Japan
- Prior art keywords
- passage
- lubricating oil
- oil
- internal combustion
- combustion engine
- 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
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
本考案は、内燃機関の冷却装置、特に機関のシリンダヘ
ッドの冷却装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooling device for an internal combustion engine, and more particularly to a cooling device for a cylinder head of the engine.
機関シリンダヘッドのうち、特に排気弁と吸気弁の間の
個所（弁間部）は高温部分であるから、弁間部の冷却は
従来から特に入念になされており、例えば弁間部に海水
ジェット通路を設けて海水（冷却水）を弁間部に噴出さ
せたり、また弁間部に冷却水流通用のキリ穴をあけ、こ
のキリ穴に冷却水を導入して弁間部の冷却を行うような
設計がなされている。In the engine cylinder head, the part between the exhaust valve and the intake valve (the part between the valves) is a high-temperature part, so the part between the valves has traditionally been particularly carefully cooled. A passage may be provided to allow seawater (cooling water) to be squirted between the valves, or a drilled hole may be drilled between the valves for cooling water to flow through, and cooling water may be introduced into this drilled hole to cool the area between the valves. It has a unique design.
しかしこのような冷却装置では、新品の場合はよいので
あるが、長時間（４００〜５叩時間）経過すると海水中
のスケールが管路に付着して冷却効果を減じ、弁間部に
亀裂を発生する原因となっている。However, with this type of cooling system, although it is fine when new, after a long period of time (400 to 5 hours), scale in the seawater adheres to the pipes, reducing the cooling effect and causing cracks between the valves. It is the cause of the occurrence.
本考案は、従来装置の上述のような欠点の解消をはかろ
うとするものであって、本考案は、弁間部の冷却を潤滑
油により行おうとするもので、機関のシリンダヘッドに
、吸気弁部と排気弁部と燃料弁挿入部または燃焼副室と
をこれらが三角形状配置となるように形成し、上記三者
間にＹ字状の潤滑油通路を形成し、該Ｙ字状の潤滑油通
路のうち弁間部に位置する通路の外端を機関の潤滑油の
一部がオイルクーラを経て連なるシリンダブロックに設
けた油流入通路に連通してこれを流入口とすると共に、
他の二本の通路の外端を前記Ｙ字状の潤滑油通路の吐出
口とし、これらシリンダブロックに設けた直径の大なる
油排出通路に連通した点を特長とするものである。The present invention is an attempt to eliminate the above-mentioned drawbacks of conventional devices.The present invention attempts to cool the area between valves using lubricating oil. The valve part, the exhaust valve part, and the fuel valve insertion part or sub-combustion chamber are formed in a triangular arrangement, and a Y-shaped lubricating oil passage is formed between the three parts. The outer end of the passage located between the valves in the lubricating oil passage is communicated with an oil inlet passage provided in a cylinder block through which part of the lubricating oil of the engine is connected via an oil cooler, and this is used as an inlet;
The other two passages are characterized in that their outer ends serve as the discharge ports of the Y-shaped lubricating oil passage and communicate with large diameter oil discharge passages provided in the cylinder block.
次に、図面により本考案の実施例を失明する。Next, the embodiments of the present invention will be explained with reference to the drawings.
１０はシリンダヘッドで、該シリンダヘッド１０には、
吸気ポート１、排気ポート２、燃料弁挿入孔３がこれら
三者が三角形状配置となるように形成されている。10 is a cylinder head, and the cylinder head 10 includes:
An intake port 1, an exhaust port 2, and a fuel valve insertion hole 3 are formed in a triangular arrangement.
そし、これらの三者のうち、各隣接する２つの部分間に
は油の流れる通路４゜５．６が形成されており、結局通
路４． ５．６によりＹ字状の潤滑油通路が吸気ポート
１、排気ポート２、燃料弁挿入孔３の間に形成されるこ
とになる。Of these three parts, a passage 4.5.6 through which oil flows is formed between each two adjacent parts, and as a result, a passage 4.5.6 is formed between each two adjacent parts. 5.6, a Y-shaped lubricating oil passage is formed between the intake port 1, the exhaust port 2, and the fuel valve insertion hole 3.
すなわち通路４は弁間部に位置し、その外端４ａはシリ
ンダブロック１１に形成した油供給通路１２に連り、こ
こがＹ字状の潤滑油通路の油の流入口となる。That is, the passage 4 is located between the valves, and its outer end 4a is connected to an oil supply passage 12 formed in the cylinder block 11, which serves as the oil inlet of the Y-shaped lubricating oil passage.
また通路４から分岐した二本の通路５，６は、それぞれ
吸気ポート１と燃料弁挿入孔３との間、および排気ポー
ト２と燃料弁挿入孔３との間に形成され、それらの外端
近くには吐出管７（第２図にはそのうちの１本だけが図
示されているが、実際には吐出管７は２本設けられてい
る）の上端に連通ずる開口５ａ、６ａが穿設されている
。Two passages 5 and 6 branched from the passage 4 are formed between the intake port 1 and the fuel valve insertion hole 3, and between the exhaust port 2 and the fuel valve insertion hole 3, respectively, and their outer ends Openings 5a and 6a communicating with the upper end of the discharge pipe 7 (only one of which is shown in FIG. 2, but actually two discharge pipes 7 are provided) are bored nearby. has been done.
なお通路５，６は第２図に示すように、やや上向きに傾
斜させるのが望ましい。Note that it is desirable that the passages 5 and 6 be inclined slightly upward, as shown in FIG.
そして、各吐出管７の下端はシリンダブロック１１に穿
設した大径の油戻り通路１４に連っている。The lower end of each discharge pipe 7 is connected to a large diameter oil return passage 14 bored in the cylinder block 11.
図中、８はボンネット、９は８はボンネット内に形成さ
れる弁腕室、２０は弁腕、２１は吸気弁、２２は排気弁
、１５は燃料弁で該燃料弁１５の内側には予燃焼室（又
は副燃焼室）１６が形成される。In the figure, 8 is a bonnet, 8 is a valve arm chamber formed in the bonnet, 20 is a valve arm, 21 is an intake valve, 22 is an exhaust valve, 15 is a fuel valve, and inside the fuel valve 15 there is a A combustion chamber (or sub-combustion chamber) 16 is formed.
１７はウォータジャケット、１８は冷却水供給孔、１９
は冷却水ジェット孔である。17 is a water jacket, 18 is a cooling water supply hole, 19
is the cooling water jet hole.
機関の運転中、機関の潤滑油ポンプの吐出油は、オイル
クーラ（図示せず）を経て、二つの回路に分岐する。During operation of the engine, oil discharged from the engine's lubricating oil pump passes through an oil cooler (not shown) and branches into two circuits.
そしてその一方の回路は通常の機関潤滑油回路に連り、
他の一つの回路は１、シリンダブロック１１に形成した
油供給通路１２に連る。And one of the circuits is connected to the normal engine lubricating oil circuit,
The other circuit 1 is connected to an oil supply passage 12 formed in the cylinder block 11.
したがって、機関の運転中潤滑油ポンプからの吐出油の
一部はオイルクーラで冷却された後通路４に流入し、先
ず、高温部である弁間部を冷却したの後、通路５と通路
６に分流して、弁部と燃料弁挿入部とを冷却し、吐出管
７に流出する。Therefore, during operation of the engine, a part of the oil discharged from the lubricating oil pump is cooled by the oil cooler and then flows into the passage 4, first cooling the high temperature area between the valves, and then cooling the passage 5 and the passage 6. The fuel flows into the discharge pipe 7, cools the valve part and the fuel valve insertion part, and flows out into the discharge pipe 7.
吐出管７の下端は大径の油戻り通路１４に連っているた
め、吐出管７からの潤滑油の排出はきわめてスムーズに
行われ、その結果、通路４．５．６に潤滑油が滞溜する
という事態の発生が防止できるので潤滑油による各部の
冷却は極めて効果的に行われること）なる。Since the lower end of the discharge pipe 7 is connected to the large-diameter oil return passage 14, the lubricating oil can be discharged from the discharge pipe 7 very smoothly, and as a result, no lubricating oil remains in the passage 4.5.6. Since this prevents lubricating oil from accumulating, cooling of various parts with lubricating oil is extremely effective.
なお本装置においても従来装置と同様に、シリンダヘッ
ドのウォータジャケット１７等の冷却は冷却水により行
われる点は当然である。It should be noted that in this device as well, as in the conventional device, cooling of the water jacket 17 and the like of the cylinder head is performed by cooling water.
このように、本考案は、シリンダヘッドの弁間部等の冷
却媒体に潤滑油を利用し、この潤滑油にはオイルクーラ
で冷却された冷えた潤滑油を使用したため、弁間部の温
度を効果的に下げることができる。In this way, the present invention utilizes lubricating oil as a cooling medium for the areas between the valves of the cylinder head, and uses cold lubricating oil cooled by an oil cooler for this lubricating oil, thereby reducing the temperature of the areas between the valves. can be lowered effectively.
そして、潤滑油は常にフィルタでろ過されているので、
その冷却回路中にスケール等が付着するおそれはなく、
その結果長期間の使用後においても冷却性能は何ら新品
のときと変ることはない。And since lubricating oil is always filtered,
There is no risk of scale etc. adhering to the cooling circuit.
As a result, even after long-term use, the cooling performance remains the same as when it was new.
また冷却通路からの潤滑油の排出はスムーズに行われる
から本考案によれば長期間に亘って冷却性能を良好に保
持することができること）なり、内燃機関のシリンダヘ
ッドの冷却装置としてきわめて有効な冷却装置を得るこ
とができ、本考案の実用上の効果は顕著である。In addition, since the lubricating oil is smoothly discharged from the cooling passage, the present invention can maintain good cooling performance over a long period of time, making it extremely effective as a cooling device for the cylinder head of an internal combustion engine. A cooling device can be obtained, and the practical effects of the present invention are remarkable.
図は本考案の実施例を示し、第１図はシリンダヘッドの
平断面図、第２図は同側断面図、第３図は弁間部の正断
面図である。
１・・・・・・吸気ポート、２・・・・・・排気ポート
、３・・曲燃料弁挿入孔、４．５．６・・・・・・通路
、７・曲・吐出管、１０・・・・・・シリンダヘッド、
１１・・曲シリンダブロック、１２・・・・・・油供給
通路、１４・・曲油戻り通路、１５・・・・・・燃料弁
、１６・・間予燃焼室、１７・・・・・・ウォータジャ
ケット、２０・・・・・・弁腕、２１・・・・・・吸気
弁、２２・・・・・・排気弁。The drawings show an embodiment of the present invention; FIG. 1 is a plan sectional view of the cylinder head, FIG. 2 is a sectional view from the same side, and FIG. 3 is a front sectional view of the valve space. 1... Intake port, 2... Exhaust port, 3... Bent fuel valve insertion hole, 4.5.6... Passage, 7... Bent discharge pipe, 10 ······cylinder head,
11... Curved cylinder block, 12... Oil supply passage, 14... Curved oil return passage, 15... Fuel valve, 16... Pre-combustion chamber, 17...・Water jacket, 20... Valve arm, 21... Intake valve, 22... Exhaust valve.
Claims (1)
部２と燃料弁挿入部または燃焼副室３とを、これらが三
角形状配置となるように形成し、上記三者間にＹ字状の
潤滑油通路４．５．６を形成し、これらＹ字状の潤滑油
通路４．５．６のうち、弁間部に位置する通路４の外端
４ａを機関の潤滑油の一部がオイルクーラを経て連なる
シリンダブロック１１を設けた助人通路１２を連設して
これを前記Ｙ字状の潤滑油通路４．５．６全体の流入口
とすると共に、他の二本の通路５，６の外端５ａ、６ａ
を前記Ｙ字状の潤滑油通路の吐出口とし、これら外端５
ａ＊６ａをシリンダブロック１１に設けた大径の油排出
通路１４に連通した内燃機関の冷却装置。An intake valve section 1, an exhaust valve section 2, and a fuel valve insertion section or sub-combustion chamber 3 are formed in a cylinder head 10 of an internal combustion engine in a triangular arrangement, and a Y-shape is formed between the three. Of these Y-shaped lubricating oil passages 4.5.6, part of the lubricating oil of the engine is formed at the outer end 4a of the passage 4 located between the valves. An assistant passage 12 with a cylinder block 11 connected to it via an oil cooler is provided to serve as an inlet for the entire Y-shaped lubricating oil passage 4.5.6, and the other two passages 5, 6 outer ends 5a, 6a
are the discharge ports of the Y-shaped lubricating oil passage, and these outer ends 5
A cooling device for an internal combustion engine in which a*6a communicates with a large diameter oil discharge passage 14 provided in a cylinder block 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15584978U JPS6019963Y2 (en) | 1978-11-13 | 1978-11-13 | Internal combustion engine cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15584978U JPS6019963Y2 (en) | 1978-11-13 | 1978-11-13 | Internal combustion engine cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5576421U JPS5576421U (en) | 1980-05-26 |
| JPS6019963Y2 true JPS6019963Y2 (en) | 1985-06-15 |
Family
ID=29145265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15584978U Expired JPS6019963Y2 (en) | 1978-11-13 | 1978-11-13 | Internal combustion engine cooling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6019963Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6319566Y2 (en) * | 1980-12-25 | 1988-06-01 | ||
| JPS58149543U (en) * | 1982-03-31 | 1983-10-07 | スズキ株式会社 | Internal combustion engine cooling system |
-
1978
- 1978-11-13 JP JP15584978U patent/JPS6019963Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5576421U (en) | 1980-05-26 |
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