JPH032654Y2 - - Google Patents
Info
- Publication number
- JPH032654Y2 JPH032654Y2 JP7490587U JP7490587U JPH032654Y2 JP H032654 Y2 JPH032654 Y2 JP H032654Y2 JP 7490587 U JP7490587 U JP 7490587U JP 7490587 U JP7490587 U JP 7490587U JP H032654 Y2 JPH032654 Y2 JP H032654Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- cylinder block
- hole
- gear
- gallery
- 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
- 239000003921 oil Substances 0.000 claims description 143
- 239000010687 lubricating oil Substances 0.000 claims description 36
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 238000005461 lubrication Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 239000010729 system oil Substances 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は多気筒内燃機関の潤滑油供給装置に係
り、特に、シリンダブロツクの潤滑系機能部品取
付側のオイルギヤラリから反対側のメインオイル
ギヤラリに亘つてシリンダブロツクの前壁に長さ
方向に穿設される連絡油孔の直径を増加すること
なしに前記メインオイルギヤラリへの潤滑油供給
量の増加を図つた前記潤滑油供給装置に関するも
のである。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a lubricating oil supply system for a multi-cylinder internal combustion engine, and in particular, the present invention relates to a lubricating oil supply system for a multi-cylinder internal combustion engine. The present invention relates to the lubricating oil supply device, which is capable of increasing the amount of lubricating oil supplied to the main oil gear without increasing the diameter of the communicating oil hole formed longitudinally in the front wall of the cylinder block. It is something.
（従来の技術）
デイーゼルエンジン等の内燃機関のうちでも、
とりわけ、縦長のシリンダブロツクに複数のシリ
ンダライナを垂直に併設した多気筒内燃機関にあ
つては、オイルフイルタやオイルクーラ等の潤滑
系機能部品のメンテナンスの容易化ならびに機関
を船舶等の狭隘な機関室に据付けた場合の作業空
間の確保等を考慮し、前記潤滑系機能部品をシリ
ンダブロツクの操縦側面に集中して取付け、か
つ、上記オイルクーラの出口に一端で接続してオ
イルギヤラリを形成すると共に、クランク軸やピ
ストン摺動部等の機関要潤滑部にオイルを供給す
るためのメインオイルギヤラリを前記シリンダブ
ロツクの反対側壁に設け、該メインオイルギヤラ
リと前記潤滑油機能部品を全て通過して濾過、調
圧され冷却された潤滑油がこれから機関側に送給
され始めるスタート部となるオイルギヤラリとを
シリンダライナ間やシリンダブロツクの前壁に長
さ方向に穿設した連絡油孔を介して接続すること
により、該油孔を通じてオイルクーラで冷却され
た潤滑油を前記メインオイルギヤラリに送給する
ようになつている。(Prior art) Among internal combustion engines such as diesel engines,
In particular, in the case of multi-cylinder internal combustion engines in which multiple cylinder liners are installed vertically in a vertically long cylinder block, maintenance of lubrication system functional parts such as oil filters and oil coolers is easier, and the engine can be installed in narrow spaces such as ships. Considering the securing of work space when installed in a room, the functional parts of the lubrication system are installed centrally on the control side of the cylinder block, and one end is connected to the outlet of the oil cooler to form an oil gear gallery. A main oil gear for supplying oil to essential lubricating parts of the engine such as the crankshaft and piston sliding parts is provided on the opposite wall of the cylinder block, and the lubricating oil is passed through the main oil gear and all of the lubricating oil functional parts. The lubricating oil, which has been filtered, pressure regulated and cooled, is then fed to the engine through communication oil holes drilled lengthwise between the cylinder liners and in the front wall of the cylinder block. By connecting, lubricating oil cooled by the oil cooler is supplied to the main oil gear gallery through the oil hole.
（考案が解決しようとする課題）
ところが、かかる従来構造の潤滑油供給装置を
備えた多気筒内燃機関においては、機関の小型高
出力化を推進すべくシリンダライナのピツチを極
力小さくすることが必要であるが、前記連絡油孔
は、シリンダブロツクを横切つて穿設されるた
め、その断面積をあまり大きくすることが出来
ず、高出力化に伴う潤滑油供給量の増加を達成出
来ない問題があつた。(Problem to be solved by the invention) However, in a multi-cylinder internal combustion engine equipped with such a lubricating oil supply device of the conventional structure, it is necessary to reduce the pitch of the cylinder liner as much as possible in order to promote smaller size and higher output of the engine. However, since the connecting oil hole is drilled across the cylinder block, its cross-sectional area cannot be made very large, which makes it impossible to increase the amount of lubricating oil supplied in response to higher output. It was hot.
勿論、上記問題点を克服する一手段としてシリ
ンダライナ間に複数本の油孔を穿設し、油孔の総
断面積を増加することが考えられるが、このよう
なシリンダライナ間に複数の油孔を穿設した場所
はシリンダブロツクの強度劣化を招くので好まし
くない。また、これとは反対にシリンダブロツク
から連絡用の油孔を撤廃し、シリンダブロツク両
サイドのオイルギヤラリを外部配管のみによつて
接続することも不可能ではないが、このように外
部配管を用いて多量の潤滑油を給送する場合は、
配管の全長が長く、管径が太くなるため、中間部
の支持が困難になると共に、配管に亀裂や折損を
生じた場合には、たちまち潤滑油供給が不能にな
り、機関の焼付きを生じる恐れがある。 Of course, one way to overcome the above problem is to drill multiple oil holes between cylinder liners to increase the total cross-sectional area of the oil holes. The location where holes are drilled is not preferable because it causes deterioration in the strength of the cylinder block. In addition, on the contrary, it is not impossible to eliminate the communication oil hole from the cylinder block and connect the oil gears on both sides of the cylinder block only by external piping, but it is possible to do so by using external piping in this way. When supplying a large amount of lubricating oil,
The overall length of the piping is long and the diameter of the piping is large, making it difficult to support the middle part, and if the piping cracks or breaks, the lubricating oil supply becomes immediately impossible and the engine seizes up. There is a fear.
本考案は、かかる従来の多気筒内燃機関が有し
ていたオイル供給量の不足の問題に着目してなさ
れたもので、シリンダブロツクの両サイドに設け
られたオイルギヤラリとメインオイルギヤラリの
両端を、一方はシリンダブロツクの前壁に長た方
向に穿設した、また他方は後壁に穿設した他の連
絡油孔と外部配管とにより相互に連結し、シリン
ダブロツクの全長の大巾な増加および強度の劣化
を招くことなく、潤滑油供給通路の断面積および
油量の増加を図り、もつて、前記問題点を解消せ
んとするものである。 The present invention was developed by focusing on the problem of insufficient oil supply that conventional multi-cylinder internal combustion engines had. , one is drilled in the front wall of the cylinder block in the longitudinal direction, and the other is interconnected by other connecting oil holes and external piping drilled in the rear wall, greatly increasing the total length of the cylinder block. It is an object of the present invention to increase the cross-sectional area of the lubricating oil supply passage and the amount of oil without causing deterioration in strength, thereby solving the above-mentioned problems.
（課題を解決するための手段）
上記目的を達成するための本考案の構成を添付
図面第１図および第２図について説明する。(Means for Solving the Problems) The structure of the present invention for achieving the above object will be explained with reference to the accompanying drawings FIGS. 1 and 2.
本考案の潤滑油供給装置は、オイルフイルタ１
５やオイルクーラ１２等のしばしば部品取替えや
メンテナンスを必要とする潤滑系機能部品をシリ
ンダブロツクの一側面に取付け、かつ、上記オイ
ルクーラ１２の冷却油出口２１に入口端を接続し
てオイルギヤラリ２２，２３を形成すると共に、
これと反対側のシリンダブロツクに、上記オイル
ギヤラリ２２，２３の出口端から連絡油孔２５を
介して送給される冷却油をクランク軸３等の機関
要潤滑油部に供給するメインオイルギヤラリ２６
を形成してなる多気筒内燃機関において、前記潤
滑系機能部品を全て通過して濾過、調圧され冷却
された潤滑油が圧送されてくるオイルギヤラリ２
２，２３を前記メインオイルギヤラリ２６の両端
に、一方はシリンダブロツク１の前壁２４に長さ
方向に穿設した連絡油孔２５にて、他方は、前記
オイルギヤラリ２２，２３の前記連絡油孔接続位
置とは異なる箇所から外部配管２８とシリンダブ
ロツク１の後壁１１に穿設した他の連絡油孔３３
との連結併用にて接続せしめたことを特徴とす
る。 The lubricating oil supply device of the present invention has an oil filter 1
5 and oil cooler 12, which often require parts replacement and maintenance, are attached to one side of the cylinder block, and the inlet end is connected to the cooling oil outlet 21 of the oil cooler 12 to form an oil gear gallery 22, Along with forming 23,
On the opposite side of the cylinder block, there is a main oil gear 26 that supplies cooling oil, which is fed from the outlet ends of the oil gears 22 and 23 through the connecting oil holes 25, to lubricating oil parts of the engine such as the crankshaft 3.
In the multi-cylinder internal combustion engine, the lubricating oil that has passed through all of the functional parts of the lubrication system and has been filtered, pressure regulated, and cooled is pumped to an oil gear gallery 2.
2 and 23 at both ends of the main oil gear gallery 26, one is a connecting oil hole 25 bored longitudinally in the front wall 24 of the cylinder block 1, and the other is the connecting oil hole 25 of the oil gears 22, 23. Another connecting oil hole 33 is drilled into the external piping 28 and the rear wall 11 of the cylinder block 1 from a location different from the hole connection position.
It is characterized by being connected in combination with the
（作用）
上記構成を備えた本考案の潤滑油供給装置は、
オイルポンプによつて汲み上げられオイルフイル
タ１５およびオイルクーラ１２により濾過冷却さ
れた潤滑油がオイルギヤラリ２２，２３からシリ
ンダブロツク１の前壁２４に長さ方向に穿設した
連絡油孔２５および外部配管２８と連結して後壁
１１に穿設した他の連絡油孔３３を通じてシリン
ダブロツク１の反対側に設けたメインオイルギヤ
ラリ２６内に両端から圧送され、ここからクラン
ク軸やピストン摺動部等の機関要潤滑部に供給さ
れる。このとき、前記オイルギヤラリ２２，２３
からシリンダブロツク１の反対側に設けたメイン
オイルギヤラリ２６に給送される潤滑油の通路断
面積は、連絡油孔２５と外部配管２８に連結した
他の連絡油孔３３との和になり圧力損失が減少す
るため、メインオイルギヤラリ２６への供給油量
を充分確保し、高出力化に対応させることが出来
ると共に、シリンダブロツク１に設けられる連絡
油孔２５の断面積を小さくすることが可能なた
め、シリンダライナピツチの短縮ならびにシリン
ダブロツクの小型化を達成することが出来る。(Function) The lubricating oil supply device of the present invention having the above configuration has the following features:
The lubricating oil pumped up by the oil pump and filtered and cooled by the oil filter 15 and oil cooler 12 flows from the oil gears 22 and 23 to the connecting oil hole 25 and external piping 28 formed longitudinally in the front wall 24 of the cylinder block 1. The oil is fed under pressure from both ends through another communication oil hole 33 connected to the rear wall 11 and drilled in the rear wall 11 into the main oil gear gallery 26 provided on the opposite side of the cylinder block 1, from where the crankshaft, piston sliding parts, etc. Supplied to parts of the engine that require lubrication. At this time, the oil gear rallies 22, 23
The passage cross-sectional area of the lubricating oil that is supplied from the lubricant to the main oil gallery 26 provided on the opposite side of the cylinder block 1 is the sum of the communication oil hole 25 and the other communication oil hole 33 connected to the external piping 28. Since the pressure loss is reduced, it is possible to ensure a sufficient amount of oil supplied to the main oil gear gallery 26 and cope with higher output, and to reduce the cross-sectional area of the communication oil hole 25 provided in the cylinder block 1. Therefore, it is possible to shorten the cylinder liner pitch and downsize the cylinder block.
（実施例）
以下、本考案の実施例を添付図面にもとづいて
詳細に説明する。(Example) Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.
第１図は本考案に係る潤滑供給装置を適用した
多気筒舶用デイーゼル内燃機関の側断面図、第２
図は同機関の平断面図、第３図は同機関の背面図
である。 Figure 1 is a side sectional view of a multi-cylinder marine diesel internal combustion engine to which the lubrication supply device according to the present invention is applied;
The figure is a plan sectional view of the engine, and Figure 3 is a rear view of the engine.
これらの図において、１は内部に複数のシリン
ダライナ２を垂直に併設してなるシリンダブロツ
ク、３は該シリンダブロツク１により回転可能な
る如く水平に支承されたクランク軸、４はオイル
パン、５はシリンダブロツク１の上面に載置され
たシリンダヘツド、６は該シリンダヘツド５の一
側に取付けられた吸気マニホールド、７は該吸気
マニホールド６の空気入口６ａに取付けられたイ
ンタークーラ、８はターボチヤージヤ、９は前記
クランク軸３の軸端に固着されたフライホイー
ル、１０は該フライホイール９を囲繞して前記シ
リンダブロツク１の後壁１１外面に固着されたフ
ライホイールハウジング、１２は前記シリンダブ
ロツク１の操縦側面に取付けられた潤滑油クー
ラ、１３は該潤滑油クーラ１２とは反対のブロツ
ク側面に取付けられた清水クーラである。 In these figures, 1 is a cylinder block having a plurality of cylinder liners 2 arranged vertically therein, 3 is a crankshaft rotatably supported horizontally by the cylinder block 1, 4 is an oil pan, and 5 is a cylinder block. A cylinder head placed on the top surface of the cylinder block 1, 6 an intake manifold attached to one side of the cylinder head 5, 7 an intercooler attached to the air inlet 6a of the intake manifold 6, 8 a turbocharger, 9 is a flywheel fixed to the shaft end of the crankshaft 3; 10 is a flywheel housing surrounding the flywheel 9 and fixed to the outer surface of the rear wall 11 of the cylinder block 1; 12 is a flywheel housing of the cylinder block 1; The lubricating oil cooler 13 attached to the control side is a fresh water cooler attached to the opposite side of the block from the lubricating oil cooler 12.
前記シリンダブロツク１の操縦側面には前記オ
イルパン４内に設けた図示なき潤滑ポンプからシ
リンダブロツク１に穿設された油孔１４を通じて
送られる潤滑油を濾過するオイルフイルタ１５が
取付けられており、該オイルフイルタ１５から出
た濾過油はシリンダブロツク１に設けた垂直油孔
１６および該垂直油孔１６の途中に設けられた調
圧弁１７を介して、側蓋１８と前記シリンダブロ
ツク１との合わせ面に設けた油孔１９に入り、オ
イル入口２０からオイルクーラ１２のオイル通路
に流入すると共に、オイルクーラ１２のオイル出
口２１から出た冷却後の潤滑油は、一部が前記側
蓋１８の合わせ面に形成した油孔２２を通じてシ
リンダブロツク１に穿設されたＬ字形の油孔２３
よりなるオイルギヤラリおよびシリンダブロツク
１の前壁２４に長さ方向に穿設された連絡油孔２
５を通じて反対側のシリンダブロツク１の側壁に
水平に穿設されたメインオイルギヤラリ２６に供
給されるようになつており、ここから前記クラン
ク軸３の軸受部やピストン冷却用ジエツトノズル
２７、ターボチヤージ８の軸受部ならびにカム軸
等の要潤滑部に給送されるようになつている。 An oil filter 15 is attached to the control side of the cylinder block 1 to filter lubricating oil sent from a lubricating pump (not shown) provided in the oil pan 4 through an oil hole 14 formed in the cylinder block 1. The filtered oil coming out of the oil filter 15 is passed through a vertical oil hole 16 provided in the cylinder block 1 and a pressure regulating valve 17 provided in the middle of the vertical oil hole 16 to the side cover 18 and the cylinder block 1. The cooled lubricating oil enters the oil hole 19 provided in the surface and flows into the oil passage of the oil cooler 12 from the oil inlet 20, and a part of the cooled lubricating oil exits from the oil outlet 21 of the oil cooler 12. An L-shaped oil hole 23 is drilled into the cylinder block 1 through an oil hole 22 formed on the mating surface.
An oil gear and a communication oil hole 2 formed longitudinally in the front wall 24 of the cylinder block 1.
5, the oil is supplied to a main oil gear gallery 26 which is horizontally bored in the side wall of the opposite cylinder block 1, and from there the oil is supplied to the bearing part of the crankshaft 3, the piston cooling jet nozzle 27, and the turbo charge 8. It is designed to be fed to parts that require lubrication, such as bearings and camshafts.
２８は、前記オイルクーラ１２のシエル２９に
設けられた油孔３０から分岐して設けた補助出口
孔３１に一端が接続され、かつ、他方端が前記フ
ライホイールハウジング１０のシリンダブロツク
１取付側壁１１に水平に穿設された軸孔３２の入
口に接続された外部配管であつて、該外部配管２
８内を通過した潤滑油は前記油孔３２から他の連
絡油孔３３を通じて前記シリンダブロツク１の後
壁１１（フライホイールハウジング取付面）に開
口したメインオイルギヤラリ２６に供給されるよ
うになつている。 28 has one end connected to an auxiliary outlet hole 31 branched from an oil hole 30 provided in the shell 29 of the oil cooler 12, and the other end connected to the cylinder block 1 mounting side wall 11 of the flywheel housing 10. An external pipe connected to the entrance of a shaft hole 32 horizontally bored in the external pipe 2.
The lubricating oil that has passed through the oil hole 32 is supplied from the oil hole 32 through another communication oil hole 33 to the main oil gear gallery 26 opened in the rear wall 11 (flywheel housing mounting surface) of the cylinder block 1. ing.
本考案の潤滑油供給装置は、叙上の構成を有す
るものであるが、次にその作用について説明する
と、先ず、機関運転時において、潤滑油ポンプに
よりオイルパン４から汲み上げられた潤滑油はオ
イルフイルタ１５を通過して不純物が取除かれ、
調圧弁１７で圧力調整されてオイルクーラ１２内
のオイル通路を流れ、海水冷却水で冷却された
後、一部がオイルギヤラリを形成している油孔２
２，２３および連絡油孔２５を通つてメインオイ
ルギヤラリ２６に流入すると共に、残りが外部配
管２８から油孔３２および他の連絡油孔３３を通
つてメインオイルギヤラリ２６に入り、ここから
機関の要潤滑部に注油される。 The lubricating oil supply device of the present invention has the above-mentioned configuration. Next, its operation will be explained. First, during engine operation, the lubricating oil pumped from the oil pan 4 by the lubricating oil pump is filled with oil. It passes through a filter 15 to remove impurities,
The pressure is regulated by the pressure regulating valve 17, the oil flows through the oil passage in the oil cooler 12, and after being cooled by seawater cooling water, the oil hole 2 partially forms an oil gear rally.
2, 23 and the connecting oil hole 25 into the main oil gear gallery 26, and the rest flows from the external piping 28 through the oil hole 32 and another connecting oil hole 33 into the main oil gear gallery 26, and from there. Lubricating parts of the engine that require lubrication.
このとき、前記オイルギヤラリ２２，２３から
シリンダブロツク１の反対側に設けたメインオイ
ルギヤラリ２６に給送される潤滑油の通路断面積
は、必要とする通路断面積を連絡油孔２５のみで
得ようとすればそのキリ穴径を大きくせざるを得
ないので壁厚を大きくするしかなくシリンダブロ
ツク１の寸法が必然的に大きくなるが、これを前
記外部配管２８に連結した他の連絡油孔３３との
２系統の通路で流すので通路断面積は連絡油孔２
５と外部配管２８に連結した他の連絡油孔３３と
の和になり圧力損失が減少するため、メインオイ
ルギヤラリ２６への供給油量を充分確保し、高出
力化に対応させることが出来ると共に、前記連絡
油孔２５のみの１本の通路で流す場合のキリ穴径
に比較して該連絡油孔２５自体の断面積を小さく
することが可能なためシリンダライナピツチの短
縮ならびにシリンダブロツク１の小型化も可能と
なる。 At this time, the passage cross-sectional area of the lubricating oil supplied from the oil gears 22 and 23 to the main oil gear gallery 26 provided on the opposite side of the cylinder block 1 can be obtained only by the connecting oil hole 25. If this were to be done, the diameter of the drilled hole would have to be increased, so the wall thickness would have to be increased, which would inevitably increase the size of the cylinder block 1. 33, so the cross-sectional area of the passage is the connecting oil hole 2.
5 and other communication oil holes 33 connected to the external piping 28, reducing pressure loss, it is possible to secure a sufficient amount of oil supplied to the main oil gear gallery 26 and support higher output. At the same time, the cross-sectional area of the communicating oil hole 25 itself can be made smaller than the diameter of the drilled hole in the case where the oil flows through a single passage of the communicating oil hole 25, so that the cylinder liner pitch can be shortened and the cylinder block 1 can be made smaller. It also becomes possible to downsize.
なお、上記実施例においては、シリンダブロツ
ク１の操縦側面に設けられるオイルギヤラリ２
２，２３と反対側のメインオイルギヤラリ２６と
を外部配管２８で接続するに際し、該外部配管２
８の管長を短縮する目的で、シリンダブロツク１
の後壁１１に穿設した他の連絡油孔３３と、該後
壁１１に接して取付けられるフライホイールハウ
ジング１０に設けた油孔３２を介して外部配管２
８の出口端を接続した場合について説明したが、
本考案に用いる外部配管２８の取付態様は別段こ
れに限定されるものではなく、例えば、外部配管
２８の出口端を直接メインオイルギヤラリ２６に
連通して穿設した上記他の連絡油孔３３に接続し
たり、フライホイールハウジング１０の代わりに
取付けられるクラツチケース等の部材に穿設した
キリ穴を介してメインオイルギヤラリ２６に接続
することも可能である。 In the above embodiment, the oil gear gallery 2 provided on the control side of the cylinder block 1 is
2, 23 and the main oil gear rally 26 on the opposite side with the external piping 28, the external piping 2
In order to shorten the pipe length of cylinder block 1,
External piping 2 is connected to the external piping 2 through another communication oil hole 33 formed in the rear wall 11 and an oil hole 32 formed in the flywheel housing 10 attached in contact with the rear wall 11.
I explained the case where the outlet end of 8 is connected.
The mounting manner of the external piping 28 used in the present invention is not particularly limited to this, and for example, the other connecting oil hole 33 is bored so that the outlet end of the external piping 28 directly communicates with the main oil gear rally 26. It is also possible to connect to the main oil gear 26 through a drilled hole in a member such as a clutch case that is attached instead of the flywheel housing 10.
更に、機関を陸用仕様として海水冷却式オイル
クーラ１２を廃し、シリンダブロツク１の側面に
第１図に２点鎖線で示す如きオイルクーラ１２′
を取付ける場合には、外部配管２８の入口端をオ
イルギヤラリを形成する油孔２２の一端に直接取
付けることもある。 Furthermore, the engine was designed for land use, and the seawater-cooled oil cooler 12 was eliminated, and an oil cooler 12' was installed on the side of the cylinder block 1 as shown by the two-dot chain line in FIG.
In some cases, the inlet end of the external pipe 28 is directly attached to one end of the oil hole 22 forming the oil gear gallery.
（考案の効果）
以上の説明によつて明らかな如く本考案の潤滑
油供給装置はオイルフイルタやオイルクーラ等の
潤滑系機能部品を全て通過して濾過、調圧され冷
却されてオイルギヤラリに供給される潤滑油を、
シリンダブロツクの前壁に長さ方向に穿設した連
絡油孔と後壁側に設けた外部配管に連結する他の
連絡油孔の双方に通じて反対側のメインオイルギ
ヤラリの両端内に圧送するようにしたものである
から、上記２系統の連絡油孔の通路で流す潤滑油
通路断面積の増加により圧力損失が減少し、油量
が大巾に増加して、機関を高出力化に対応させる
ことが可能になると共に、外部配管に連結する他
の連絡油孔との併用によりシリンダブロツクの前
壁内に長さ方向に設けるべき連絡油孔の径を該連
絡油孔のみの１本の通路で流す場合のキリ穴径に
比較して小さくすることが出来、これによつてシ
リンダライナ間〓およびシリンダブロツク外壁の
厚さ減少を達成し、機関を小型化し得るというす
ぐれた効果を発揮する。(Effect of the invention) As is clear from the above explanation, the lubricating oil supply device of the present invention passes through all the functional parts of the lubrication system such as an oil filter and an oil cooler, and is then filtered, pressure regulated, cooled, and supplied to the oil gear gallery. lubricating oil,
The oil is pumped into both ends of the main oil gear on the opposite side through both the connecting oil hole drilled in the length direction on the front wall of the cylinder block and the other connecting oil hole connected to the external piping provided on the rear wall side. As a result, pressure loss is reduced by increasing the cross-sectional area of the lubricating oil passages flowing through the connecting oil holes in the two systems, and the amount of oil is greatly increased, making it possible to increase the output of the engine. In addition, by using it together with other communicating oil holes connected to external piping, the diameter of the connecting oil hole that should be provided in the longitudinal direction in the front wall of the cylinder block can be reduced to just one connecting oil hole. This can be made smaller than the diameter of the drilled hole when flowing through the passageway, and this has the excellent effect of reducing the thickness between the cylinder liners and the outer wall of the cylinder block, making it possible to downsize the engine. do.
第１図は本考案に係る潤滑油供給装置を適用し
た多気筒内燃機関の側断面図、第２図は同機関の
平断面図、第３図は同機関の背面図である。
１……シリンダブロツク、１２……オイルクー
ラ、１５……オイルフイルタ、２２，２３……オ
イルギヤラリ、２５……連絡油孔、２６……メイ
ンオイルギヤラリ、２８……外部配管、３３……
他の連絡油孔。
FIG. 1 is a side sectional view of a multi-cylinder internal combustion engine to which a lubricating oil supply device according to the present invention is applied, FIG. 2 is a plan sectional view of the engine, and FIG. 3 is a rear view of the engine. 1... Cylinder block, 12... Oil cooler, 15... Oil filter, 22, 23... Oil gear, 25... Communication oil hole, 26... Main oil gear, 28... External piping, 33...
Other communicating oil holes.
Claims (1)
部品をシリンダブロツクの一側面に取付け、か
つ、上記オイルクーラの冷却油出口に入口端を接
続してオイルギヤラリを形成すると共に、これと
反対側のシリンダブロツクに、上記オイルギヤラ
リの出口端から連絡油孔を介して送給される冷却
油をクランク軸等の機関要潤滑油部に供給するメ
インオイルギヤラリを形成してなる多気筒内燃機
関において、前記潤滑系機能部品を全て通過して
濾過、調圧され冷却された潤滑油が圧送されてく
るオイルギヤラリを前記メインオイルギヤラリの
両端に、一方はシリンダブロツクの前壁に長さ方
向に穿設した連絡油孔にて、他方は、前記オイル
ギヤラリの前記連絡油孔接続位置とは異なる箇所
から外部配管とシリンダブロツクの後壁に穿設し
た他の連絡油孔との連結併用にて接続せしめたこ
とを特徴とする多気筒内燃機関の潤滑油供給装
置。 Lubrication system functional parts such as an oil filter and an oil cooler are attached to one side of the cylinder block, and the inlet end is connected to the cooling oil outlet of the oil cooler to form an oil gear gallery. , in a multi-cylinder internal combustion engine formed with a main oil gear assembly that supplies cooling oil fed from an outlet end of the oil gear assembly via a communication oil hole to an engine lubricating oil section such as a crankshaft, the lubrication system Oil gears, through which the lubricating oil that has passed through all the functional parts, has been filtered, pressure regulated, and cooled, are pumped out are installed at both ends of the main oil gear, and one is a communicating oil hole drilled longitudinally in the front wall of the cylinder block. The other hole is connected to an external pipe from a location different from the connection position of the communication oil hole of the oil gear gallery and another communication oil hole drilled in the rear wall of the cylinder block. A lubricating oil supply system for a multi-cylinder internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7490587U JPH032654Y2 (en) | 1987-05-19 | 1987-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7490587U JPH032654Y2 (en) | 1987-05-19 | 1987-05-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63183409U JPS63183409U (en) | 1988-11-25 |
| JPH032654Y2 true JPH032654Y2 (en) | 1991-01-24 |
Family
ID=30920557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7490587U Expired JPH032654Y2 (en) | 1987-05-19 | 1987-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH032654Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7256959B2 (en) * | 2019-06-04 | 2023-04-13 | コベルコ建機株式会社 | construction machinery |
-
1987
- 1987-05-19 JP JP7490587U patent/JPH032654Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63183409U (en) | 1988-11-25 |
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