JPH01240719A - Internal combustion engine - Google Patents
Internal combustion engineInfo
- Publication number
- JPH01240719A JPH01240719A JP6677188A JP6677188A JPH01240719A JP H01240719 A JPH01240719 A JP H01240719A JP 6677188 A JP6677188 A JP 6677188A JP 6677188 A JP6677188 A JP 6677188A JP H01240719 A JPH01240719 A JP H01240719A
- Authority
- JP
- Japan
- Prior art keywords
- air
- cylinder block
- height
- engine
- air supply
- 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 title claims description 8
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 239000000498 cooling water Substances 0.000 description 8
- 239000010687 lubricating oil Substances 0.000 description 6
- 239000013505 freshwater Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Landscapes
- Supercharger (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、排気ターボ過給機と空気冷却器を備えた立形
直列多気筒内燃機関に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vertical in-line multi-cylinder internal combustion engine equipped with an exhaust turbocharger and an air cooler.
（従来技術及びその問題点）
近年、舶用機関の分野では機関の占めるスペースを可能
な限り小さくするために機関全高を低くした所謂ローラ
イン形機関が開発されている。(Prior Art and its Problems) In recent years, in the field of marine engines, so-called low-line engines have been developed in which the overall height of the engine is reduced in order to minimize the space occupied by the engine.
この種のローライン形機関では、従来から過給機を排気
マニホールドの中央部に配置し、箱形の空気冷却器をク
ランク軸軸端部に配置した機関及び過給機と箱型の空気
冷却器の両者をクランク軸軸端部に配置した機関が知ら
れている。Conventionally, in this type of low-line engine, the supercharger is placed in the center of the exhaust manifold, and a box-shaped air cooler is placed at the end of the crankshaft. An engine is known in which both of the cylinders are arranged at the end of the crankshaft.
しかし、前者は過給機がシリンダヘッド上部のボンネッ
トより高く配置され、所謂ローライン形とはいいがたく
、後者は機関中が大きくなる問題がある。However, in the former, the supercharger is placed higher than the bonnet above the cylinder head, so it cannot be called a low-line type, and in the latter, there is a problem that the engine becomes large.
また、過給機をクランク軸軸端に配置し、シリンダブロ
ック−側面に給気系と排気系を集合配置した従来技術が
実開昭５３−１０１１０９号でも知られている。Further, a conventional technique in which a supercharger is disposed at the end of the crankshaft and an air supply system and an exhaust system are collectively disposed on the side surface of the cylinder block is also known from Utility Model Application No. 53-101109.
、更に、過給機を排気マニホールドの中央又はりランク
軸軸端部に配置し、空気冷却器は本考案と同じシリンダ
ブロック長手方向に長い略箱型形式としたものも従来技
術として知られている。この場合、噴射ポンプは集合型
噴射ポンプ（インラインポンプ）が、空気冷却器を含む
給気系直下に配置される為、給気系はシリンダヘッド上
部のボンネット高さよりも高い位置となって所謂ローラ
イン形とはならない。この技術でのローライン化を計る
為には給気系を横方向にはり出し、機関中を犠牲にする
問題が生じる。Further, it is also known as prior art that the supercharger is arranged at the center of the exhaust manifold or at the end of the rank shaft, and the air cooler is of a substantially box-like type long in the longitudinal direction of the cylinder block, which is the same as in the present invention. There is. In this case, the injection pump is a collective injection pump (inline pump) that is placed directly below the air supply system that includes the air cooler, so the air supply system is located at a position higher than the bonnet height above the cylinder head, resulting in a so-called low-level injection pump. It is not a line shape. In order to achieve a low line using this technology, the problem arises that the air supply system has to be pushed out laterally, sacrificing the entire engine.
（発明の目的）
本発明は、機関全高を低くして機関の占める船内スペー
スを小さくできる内燃機関を提供することを目的として
いる。(Objective of the Invention) An object of the present invention is to provide an internal combustion engine that can reduce the overall height of the engine and reduce the space occupied by the engine inside a ship.
（発明の構成）
（１）技術的手段
本発明は、排気ターボ過給機と空気冷却器を備えた立形
直列多気筒内燃機関において、給気系と排気系をシリン
ダブロックの両側方にそれぞれ分離したクロスフロー配
置で設け、各気筒毎に噴射ポンプと噴射ノズルを一体化
したユニットインジェクタを設け、前記排気ターボ過給
機をクランク軸軸端部に相当するシリンダブロックの一
方の端部に配置し、前記空気冷却器を前記給気系側のシ
リンダブロック側面に配置し、空気冷却器はシリンダブ
ロック長手方向に長い略箱型形式とし、空気冷却器を含
む前記給気系の高さをシリンダヘッド上部のボンネット
高さよりも低いか、又は概略同じ高さにするように配置
したことを特徴とする内燃機関である。(Structure of the Invention) (1) Technical Means The present invention provides an air supply system and an exhaust system on both sides of a cylinder block in a vertical in-line multi-cylinder internal combustion engine equipped with an exhaust turbo supercharger and an air cooler. A unit injector that integrates an injection pump and an injection nozzle is provided for each cylinder, and the exhaust turbo supercharger is arranged at one end of the cylinder block corresponding to the end of the crankshaft. The air cooler is arranged on the side of the cylinder block on the side of the air supply system, and the air cooler has a substantially box-like shape that is long in the longitudinal direction of the cylinder block, and the height of the air supply system including the air cooler is equal to that of the cylinder. This internal combustion engine is characterized in that the head is arranged so as to be lower than or approximately the same height as the bonnet height.
（２）作用
ユニットインジェクタを採用したので、シリンダブロッ
ク側面に噴射ポンプを配置する必要がなくなり、その分
だけ給気系を低く配置し、機関金裔が低くなる。(2) Since the working unit injector is adopted, there is no need to arrange an injection pump on the side of the cylinder block, and the air supply system can be arranged lower accordingly, resulting in a lower engine height.
（実施例）
本発明を採用した舶用ディーゼル機関を示す第１図で、
１０はシリンダブロックであり、シリンダブロック１０
の上面にはシリンダヘッド１１を設けてあり、シリンダ
ブロック１０の下面には、クランクケース１２、オイル
パン１３を設けである。クランクケース１２内にはクラ
ンク軸１４が軸支され、クランク軸１４はコンロッド１
５でピストン１６と繋がっている。(Example) In FIG. 1 showing a marine diesel engine adopting the present invention,
10 is a cylinder block;
A cylinder head 11 is provided on the upper surface of the cylinder block 10, and a crankcase 12 and an oil pan 13 are provided on the lower surface of the cylinder block 10. A crankshaft 14 is rotatably supported within the crankcase 12, and the crankshaft 14 is connected to the connecting rod 1.
5 is connected to the piston 16.
シリンダブロック１０の図中の右側部にはクランク軸１
４と連動するカム軸１７が設けられ、ブツシュロッド１
８、タペット１９を介してカム軸１７で各気筒毎に設け
られた周知のユニットインジェクタ２０を駆動するよう
になっている。ユニットインジェクタ２０は従来の噴射
ポンプと噴射ノズルを一体化した。構造である。A crankshaft 1 is located on the right side of the cylinder block 10 in the figure.
A camshaft 17 is provided which interlocks with the bushing rod 1.
8. A well-known unit injector 20 provided for each cylinder is driven by the camshaft 17 via the tappet 19. The unit injector 20 integrates a conventional injection pump and injection nozzle. It is a structure.
前記シリンダブロック１０の左方近傍上方には給気系２
１が配置され、右方には排気マニホールド２２等からな
る排気系２３が配置しである。給気系２１の直下には潤
滑油冷却器し器２４、潤滑油注入口２５等を設けである
。シリンダブロック１０の左右には機関支持脚２６が伸
びている。また、排気系２３の下方には潤滑油冷却器５
０が配置しである。An air supply system 2 is located above the left side of the cylinder block 10.
1 is arranged, and an exhaust system 23 consisting of an exhaust manifold 22 and the like is arranged on the right side. Immediately below the air supply system 21, a lubricating oil cooler 24, a lubricating oil inlet 25, etc. are provided. Engine support legs 26 extend on the left and right sides of the cylinder block 10. Further, a lubricating oil cooler 5 is provided below the exhaust system 23.
0 is the placement.
第１図の■矢視図である第２図で、６気筒用のシリンダ
ブロック１０のフライホイール２７側端部すなわち一方
のクランク軸端部に相当するシリンダブロック１０の横
方向右端部には排気ターボ過給機３０を設けである。こ
の排気ターボ過給機３０は前記排気マニホールド２２（
第１図）から送られて来る排気ガスを受けて給気を圧縮
する機能を備えている。In FIG. 2, which is a view in the direction of the ■ arrow in FIG. A turbo supercharger 30 is provided. This exhaust turbo supercharger 30 has the exhaust manifold 22 (
It has the function of receiving exhaust gas sent from the air pump (Fig. 1) and compressing the air supply.
排気ターボ過給機３０の給気吐出口３１は連絡管３２で
給気入口ダクト３３に連通している。この給気入口ダク
ト３３は前記シリンダブロック１０の左側面に沿う横長
状に形成され、ボルト３４でシリンダブロック１０に固
定されるブラケット３５を有している。給気入口ダクト
３３の上面には横に長い略箱形の空気冷却器３６が連通
し、給気冷却器３６で冷却した給気を給気マニホールド
３７から各気筒３８に供給するようになっている。The air supply discharge port 31 of the exhaust turbocharger 30 communicates with an air supply inlet duct 33 through a connecting pipe 32 . The air supply inlet duct 33 is formed in a horizontally elongated shape along the left side surface of the cylinder block 10, and has a bracket 35 fixed to the cylinder block 10 with a bolt 34. A horizontally long, generally box-shaped air cooler 36 is connected to the upper surface of the intake air inlet duct 33, and the intake air cooled by the intake air cooler 36 is supplied from an intake manifold 37 to each cylinder 38. There is.
気筒３８の上面はボンネット３９で覆われている。The upper surface of the cylinder 38 is covered with a bonnet 39.
これらの給気入口ダクト３３、給気冷却器３６、給気マ
ニホールド３７等で前記給気系２１を形成している。The air supply system 21 is formed by the air supply inlet duct 33, the air supply cooler 36, the air supply manifold 37, and the like.
排気ターボ過給機３０の直下には空気冷却器冷却用の冷
却水ポンプ４０が設けてあり、冷却水ポンプ４０から圧
送される冷却水を冷却水供給管４１で給気冷却器３６に
送り、給気冷却器３６の左端部の冷却水排出管４２から
清水冷却器４３へ冷却水を流し、清水彫版タンク４４内
で熱交換を行うようになっている。なお、４５は空気冷
却器３６用の冷却水とは別系統のシリンダブロック１０
用冷却水パイプである。A cooling water pump 40 for cooling the air cooler is provided directly below the exhaust turbo supercharger 30, and the cooling water pumped from the cooling water pump 40 is sent to the charge air cooler 36 through a cooling water supply pipe 41. Cooling water flows from a cooling water discharge pipe 42 at the left end of the air supply cooler 36 to a fresh water cooler 43, and heat exchange is performed within a fresh water engraving tank 44. Incidentally, 45 is a cylinder block 10 that has a separate system from the cooling water for the air cooler 36.
cooling water pipe.
前記給気系２１が配置されているスペースには従来では
第１図の噴射ポンプ１００が設けられていたが、本発明
の場合では前記ユニ・ットインジエクタ２０を採用した
ので、大型の噴射ポンプ１００を置くスペースが空き、
ここへ給気系２１を配置しである。Conventionally, the injection pump 100 shown in FIG. 1 was installed in the space where the air supply system 21 is arranged, but in the case of the present invention, the unit injector 20 is adopted, so the large injection pump 100 is not required. There is space to put it,
The air supply system 21 is placed here.
以上の構成では、給気系２１の高さＨ２はボンネット３
９の高さＨ３よりも低くなり、機関の全高Ｈが低い。給
気系２１の下方には潤滑油注入口し器２４、潤滑油注入
口２５を配置し、排気系２３の下方には潤滑油冷却器５
０を配置しであるので、シリンダブロック１０の周囲の
スペースが有効に利用され、機関の全幅Ｂも小さい。In the above configuration, the height H2 of the air supply system 21 is
9, the overall height H of the engine is lower. A lubricating oil inlet 24 and a lubricating oil inlet 25 are arranged below the air supply system 21, and a lubricating oil cooler 5 is arranged below the exhaust system 23.
0, the space around the cylinder block 10 is effectively used, and the overall width B of the engine is also small.
したがって、機関の全高Ｈ１全幅Ｂが小さくなり、船内
での機関の設置スペースが小さくなり、船室、船舶等が
広くなる。Therefore, the overall height H1 and overall width B of the engine become smaller, the installation space for the engine inside the ship becomes smaller, and the cabin, ship, etc. become larger.
（別の実施例）
（１） 本発明は以上の１実施例に限定されず、第３図
に示すように給気系２１の給気人口ダクト３３を空気冷
却器３６の上面に設け、空気冷却器３６の下面に給気マ
ニホールド３７を設けてもよい。給気入口ダクト３３は
第４図に示すように、連絡管３２から遠ざかるに連れて
断面積が減少するような傾斜面５１を備えて、略箱型の
空気冷却器３６を全長にわたって有効に利用するように
なっている。(Another Embodiment) (1) The present invention is not limited to the above-described one embodiment, and as shown in FIG. An air supply manifold 37 may be provided on the lower surface of the cooler 36. As shown in FIG. 4, the air supply inlet duct 33 is provided with an inclined surface 51 whose cross-sectional area decreases as it moves away from the communication pipe 32, making effective use of the substantially box-shaped air cooler 36 over its entire length. It is supposed to be done.
この実施例の場合でも、給気系２１の高さＨ２は高さＨ
３と略同じ高さに押えられており、機関の全高Ｈ１全幅
Ｂが小さい。Even in the case of this embodiment, the height H2 of the air supply system 21 is the height H
3, and the overall height H1 and overall width B of the engine are small.
（２） 本発明は、船舶の推進用に使用する主機に限ら
ず、船内で必要な動力を得るための補機にも使用できる
。(2) The present invention can be used not only for the main engine used for propulsion of a ship, but also for an auxiliary engine for obtaining the necessary power inside the ship.
（発明の効果）
以上説明したように本発明は、給気系２１と排気系２３
をシリンダブロック１ｏの両側方にそれぞれ分離したク
ロスフロー配置で設け、各気筒毎に噴射ポンプと噴射ノ
ズルを一体化したユニットインジェクタ２０を設け、前
記排気ターボ過給機３０をクランク軸軸端部に相当する
シリンダブロック１０の一方の端部に配置し、空気冷却
器３６（空気冷却器）を前記給気系側のシリンダブロッ
ク側面に配置し、空気冷却器３６はシリンダブロック長
手方向に長い略箱型形式とし、空気冷却器３６を含む前
記給気系２１の高さＨ２をシリンダヘッド上部のボンネ
ット高さＨ’３よりも低くするようにしたので、給気系
２１の高さＨ２をボンネット３つの高さＨ３よりも低い
か、又は少なくとも概略同じ高さに設定でき、機関の全
高Ｈを低（押えることができる。(Effects of the Invention) As explained above, the present invention provides the air supply system 21 and the exhaust system 23.
are provided in a separate cross-flow arrangement on both sides of the cylinder block 1o, a unit injector 20 that integrates an injection pump and an injection nozzle is provided for each cylinder, and the exhaust turbo supercharger 30 is installed at the end of the crankshaft. The air cooler 36 (air cooler) is arranged at one end of the corresponding cylinder block 10, and the air cooler 36 (air cooler) is arranged on the side of the cylinder block on the air supply system side, and the air cooler 36 has a substantially box shape long in the longitudinal direction of the cylinder block. The height H2 of the air supply system 21 including the air cooler 36 is set lower than the bonnet height H'3 at the top of the cylinder head. The height H3 of the engine can be set lower than, or at least approximately the same as, the total height H of the engine.
したがって、機関の全高Ｈ１全幅Ｂを小さくでき、船内
での機関の設置スペースが小さくなり、船室、船舶等を
広くできる。Therefore, the overall height H1 and overall width B of the engine can be reduced, the installation space for the engine inside the ship can be reduced, and the cabin, ship, etc. can be made larger.
第１図は本発明を採用した舶用ディーゼル機関の縦断面
図、第２図は第１図の■矢視図、第３図は別の実施例を
示す縦断面図、第４図は第３図の■矢視図である。１ｏ
・・・シリンダブロック、２１・・・給気系、２３・・
・排気系、３ｏ・・・排気ターボ過給機、３３・・・給
気入口ダクト、３６・・・空気冷却器、３７・・・給気
マニホールド
特許出願人 ヤンマーディーゼル株式会社代理人 弁理
士 大森忠孝 ；、４．１’）、’！ 、”、’７１・
＝１
′ −ｊFIG. 1 is a longitudinal sectional view of a marine diesel engine adopting the present invention, FIG. 2 is a view taken in the direction of the ■ arrow in FIG. It is a view in the direction of the ■ arrow in the figure. 1o
...Cylinder block, 21...Air supply system, 23...
・Exhaust system, 3o... Exhaust turbo supercharger, 33... Air supply inlet duct, 36... Air cooler, 37... Air supply manifold Patent applicant Yanmar Diesel Co., Ltd. Agent Patent attorney Omori Tadaka;, 4.1'),'! ,”,’71・
=1 ′ −j
Claims (1)
内燃機関において、給気系と排気系をシリンダブロック
の両側方にそれぞれ分離したクロスフロー配置で設け、
各気筒毎に噴射ポンプと噴射ノズルを一体化したユニッ
トインジェクタを設け、前記排気ターボ過給機をクラン
ク軸軸端部に相当するシリンダブロックの一方の端部に
配置し、前記空気冷却器を前記給気系側のシリンダブロ
ック側面に配置し、空気冷却器はシリンダブロック長手
方向に長い略箱型形式とし、空気冷却器を含む前記給気
系の高さをシリンダヘッド上部のボンネツト高さよりも
低いか、又は概略同じ高さにするように配置したことを
特徴とする内燃機関。In a vertical in-line multi-cylinder internal combustion engine equipped with an exhaust turbocharger and an air cooler, the air intake system and exhaust system are separated on both sides of the cylinder block in a cross-flow arrangement.
A unit injector that integrates an injection pump and an injection nozzle is provided for each cylinder, the exhaust turbo supercharger is disposed at one end of the cylinder block corresponding to the end of the crankshaft, and the air cooler is installed at the end of the cylinder block corresponding to the end of the crankshaft. The air cooler is placed on the side of the cylinder block on the air supply system side, and the air cooler is approximately box-shaped, long in the longitudinal direction of the cylinder block, and the height of the air supply system, including the air cooler, is lower than the bonnet height at the top of the cylinder head. An internal combustion engine characterized in that the internal combustion engine is arranged so as to be approximately at the same height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6677188A JPH01240719A (en) | 1988-03-18 | 1988-03-18 | Internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6677188A JPH01240719A (en) | 1988-03-18 | 1988-03-18 | Internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01240719A true JPH01240719A (en) | 1989-09-26 |
Family
ID=13325468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6677188A Pending JPH01240719A (en) | 1988-03-18 | 1988-03-18 | Internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01240719A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0481514A (en) * | 1990-07-23 | 1992-03-16 | Komatsu Ltd | Air cooled type feed cooling device for engine with supercharger for construction machine |
-
1988
- 1988-03-18 JP JP6677188A patent/JPH01240719A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0481514A (en) * | 1990-07-23 | 1992-03-16 | Komatsu Ltd | Air cooled type feed cooling device for engine with supercharger for construction machine |
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