JPS6136732Y2 - - Google Patents
Info
- Publication number
- JPS6136732Y2 JPS6136732Y2 JP4989780U JP4989780U JPS6136732Y2 JP S6136732 Y2 JPS6136732 Y2 JP S6136732Y2 JP 4989780 U JP4989780 U JP 4989780U JP 4989780 U JP4989780 U JP 4989780U JP S6136732 Y2 JPS6136732 Y2 JP S6136732Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil pan
- oil
- engine
- pan
- outward
- 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
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 50
- 239000010687 lubricating oil Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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、内燃機関において当該内燃機関にお
けるクランクケースの下面に取付くオイルパンの
改良に関するものである。[Detailed Description of the Invention] The present invention relates to an improvement in an oil pan attached to the lower surface of a crankcase of an internal combustion engine.
従来この種のオイルパンは、それ自身の軽量化
を図ること及び衝撃に対して亀裂がないようにす
るために板金製とし、軟鉄板からのいわゆる深絞
りプレス加工によつて製作される。しかし、最近
の自動車のようにエンジンルーム内に塔載される
補機類やデバイス類が多くなるとレイアウト上オ
イルパンの深さを深くすることによつて油量を確
保せざるを得ない場合や、また、キヤプオーバー
型の自動車に塔載する内燃機関において該機関を
傾斜状に設置する場合には、そのオイルパンは所
定量の潤滑油を確保し、且つ地下面からの高さを
確保するために深さが深くなる。このようにオイ
ルパンを深くすると、深絞りのプレス加工による
一体成形が困難になると共に、その側面板の剛性
が不足し側面板が機関の振動によつて膜振動して
機関の騒音が増大し、更には底面積が増大するこ
とによつてオイルパン内の潤滑油の油面変動が増
大することになり、オイルストレーナからの空気
の吸込みの要因となる点に問題がある。 Conventionally, this type of oil pan is made of sheet metal in order to reduce its weight and to prevent it from cracking due to impact, and is manufactured by so-called deep drawing press processing from a soft iron plate. However, as with modern cars, where there are many auxiliary machines and devices mounted in the engine compartment, it may be necessary to secure oil volume by increasing the depth of the oil pan due to the layout. In addition, when an internal combustion engine mounted on a cap-over type vehicle is installed in an inclined manner, the oil pan must be installed in order to secure a predetermined amount of lubricating oil and to secure the height from the underground surface. The depth increases. If the oil pan is deepened in this way, it will be difficult to form one piece using deep drawing press processing, and the rigidity of the side plates will be insufficient, causing the side plates to vibrate due to engine vibrations, increasing engine noise. Furthermore, as the bottom area increases, fluctuations in the lubricating oil level within the oil pan increase, which causes a problem in that air is sucked in from the oil strainer.
本考案は、このような板金製の深いオイルパン
を、上下に２分割して各々別々にプレス成形し、
両者を溶接接合することによつて、深絞りのプレ
ス成形を容易にする一方、その上下の接合部によ
つて側面板の剛性を高めて膜振動による騒音を低
減し、且つ前記接合部によつて潤滑油の揺れ撹拌
に抵抗を与え油面変動を低減したものである。 In this invention, such a deep oil pan made of sheet metal is divided into upper and lower halves, each of which is press-formed separately.
By welding the two together, deep drawing press forming is facilitated, while the upper and lower joints increase the rigidity of the side plate and reduce noise caused by membrane vibration. This provides resistance to the shaking and agitation of the lubricating oil and reduces oil level fluctuations.
以下本考案を、傾斜型機関のオイルパンに適用
した場合の実施例の図面について説明するに、図
において１は水平に対して適宜角度θだけ傾斜し
て設置した機関本体、３は該機関におけるクラン
クケース２の下面に取付くオイルパンを各々示
し、該オイルパン３は、角筒状の上部オイルパン
４と、有底で且上面開放の箱型の下部オイルパン
５とからなり、これら上下両オイルパン４，５は
いずれも軟鉄の薄板で形成され、上部オイルパン
４の上端周囲を、外向きに折曲して、前記機関の
クランクケース２に対して複数本のボルト６の締
結によつて接合されるフランジ部７に形成する一
方、上部オイルパン４の下端周囲を、内向きに折
曲して下部オイルパン５に対する接合縁８に形成
する。また、前記下部オイルパン５の上端周囲を
外向きに折曲して接合縁９に形成し、該接合縁９
を前記上部オイルパン４の接合縁８に合せたの
ち、その全外周を溶接１０することによつて接合
して成るものである。 Below, we will explain the drawings of an embodiment in which the present invention is applied to an oil pan of a tilted engine. Each oil pan attached to the lower surface of the crankcase 2 is shown, and the oil pan 3 consists of an upper oil pan 4 having a rectangular cylindrical shape and a lower oil pan 5 having a box shape with a bottom and an open top. Both oil pans 4 and 5 are both formed of thin plates of soft iron, and the upper end of the upper oil pan 4 is bent outward to allow fastening of a plurality of bolts 6 to the crankcase 2 of the engine. On the other hand, the periphery of the lower end of the upper oil pan 4 is bent inward to form a joining edge 8 to the lower oil pan 5. Further, the upper end of the lower oil pan 5 is bent outward to form a joining edge 9, and the joining edge 9 is bent outward.
is aligned with the joint edge 8 of the upper oil pan 4, and then joined by welding 10 to the entire outer periphery.
このように、オイルパン３を上部オイルパン４
と下部オイルパン５との２つに分け、上部オイル
パン３を角筒状にして、その上端周囲を外向きに
折曲してフランジ部７に、下端周囲を内向きに折
曲して接合縁８に各々形成したとにより、当該上
部オイルパン４は金属板からの一回の深絞りプレ
ス加工によつて成形でき、また、下部オイルパン
５を有底で上面開放の箱形に形成し、その上端周
囲を外向に折曲して接合縁９にしたことにより、
当該下部オイルパン５も金属板からの一回の深絞
りプレス加工によつて成形でき、オイルパン３の
全体を深絞りプレス加工によつて一体成形する場
合よりも、両深絞りの絞り深さが浅くなるから、
上下両オイルパン４，５の深絞りプレス加工が簡
単に且つ容易になるのである。 In this way, connect the oil pan 3 to the upper oil pan 4.
and a lower oil pan 5, the upper oil pan 3 is made into a rectangular tube shape, and the upper end thereof is bent outward and joined to the flange portion 7, and the lower end is bent inward and joined. The upper oil pan 4 can be formed by a single deep drawing press from a metal plate, and the lower oil pan 5 can be formed into a box shape with a bottom and an open top. , by bending the upper end periphery outward to form a joint edge 9,
The lower oil pan 5 can also be formed from a metal plate by one deep drawing press, and the drawing depth of both deep drawings is smaller than when the entire oil pan 3 is integrally formed by deep drawing press. Because it becomes shallow,
Deep drawing press processing of both the upper and lower oil pans 4 and 5 becomes simple and easy.
また、上部オイルパン４の深絞りプレス加工が
容易になつてそのフランジ部７の加工精度を向上
できるから、機関のクランクケース２に対する接
合部のシール性が高められ、油漏れを確実に防止
し得るのである。 In addition, since the deep drawing press processing of the upper oil pan 4 becomes easier and the processing accuracy of the flange portion 7 can be improved, the sealing performance of the joint to the engine crankcase 2 is improved, and oil leakage is reliably prevented. You get it.
しかも、上下両オイルパン４，５を、上部オイ
ルパン４の下端周囲の内向き接合縁８と、下部オ
イルパン５の上端周囲の外向き接合縁９とで接合
したことにより、両接合縁８，９はオイルパン３
の全体に対してその周囲を囲繞する補強部となる
から、各側面部の剛性が増大し、従つてオイルパ
ンを深くしたことによる膜振動の増大を防止でき
て、機関の騒音を低減できるのであり、また、上
部オイルパン４の内向き接合縁８に下部オイルパ
ン５の外向き接合縁９を合せて接合したことによ
り、下部オイルパン５の大きさは、接合部の巾寸
法だけ上部オイルパン４よりも必然的に小さくな
り、上部オイルパン４との間に段差が形成され、
この段差がオイルパン内における潤滑油の揺れ撹
拌に対して抵抗を与えるから、潤滑油の油面変動
を低減できるのである。この場合において、上部
オイルパン４の内向き接合縁８を図示のように、
下部オイルパン５の内側寸法より内側に適宜延ば
して延長部８′，８′を形成すれば、オイルパンの
側面部の強度がより増大すると共に、前記延長部
８′，８′が、潤滑油に対するバツフルプレートの
作用をなくて潤滑油の油面変動を更に低減できる
のである。 Moreover, since the upper and lower oil pans 4 and 5 are joined by the inward joining edge 8 around the lower end of the upper oil pan 4 and the outward joining edge 9 around the upper end of the lower oil pan 5, both joining edges 8 , 9 is oil pan 3
Since it becomes a reinforcing part that surrounds the whole of the oil pan, the rigidity of each side part increases, which prevents an increase in membrane vibration caused by deepening the oil pan, and reduces engine noise. Also, by joining the inward joining edge 8 of the upper oil pan 4 to the outward joining edge 9 of the lower oil pan 5, the size of the lower oil pan 5 is reduced by the width of the joint. It is inevitably smaller than the pan 4, and a step is formed between it and the upper oil pan 4.
Since this level difference provides resistance to the shaking and agitation of the lubricating oil in the oil pan, fluctuations in the lubricating oil level can be reduced. In this case, the inward joint edge 8 of the upper oil pan 4 is as shown in the figure.
If the extensions 8', 8' are formed by appropriately extending inward from the inner dimension of the lower oil pan 5, the strength of the side surface of the oil pan is further increased, and the extensions 8', 8' are able to absorb lubricating oil. By eliminating the effect of the buffful plate on the lubricating oil level, fluctuations in the lubricating oil level can be further reduced.
図面は本考案の実施例を示し、第１図は機関下
部の一部切欠正面図、第２図は第１図の−視
断面図、第３図は第２図の−視断面図、第４
図はオイルパンの分解図である。
１……機関本体、２……クランクケース、３…
…オイルパン、４……上部オイルパン、５……下
部オイルパン、７……接続フランジ、８……内向
き接合縁、９……外向き接合縁、１０……溶接。
The drawings show an embodiment of the present invention, in which FIG. 1 is a partially cutaway front view of the lower part of the engine, FIG. 2 is a cross-sectional view of FIG. 4
The figure is an exploded view of the oil pan. 1... Engine body, 2... Crank case, 3...
... Oil pan, 4 ... Upper oil pan, 5 ... Lower oil pan, 7 ... Connection flange, 8 ... Inward joint edge, 9 ... Outward joint edge, 10 ... Welding.
Claims (1)
る板金製のオイルパンを、筒状の上部オイルパン
と、有底で且つ上面開放の箱型の下部オイルパン
とで構成し、前記上部オイルパンの下端周囲を内
向きに折曲した接合縁に、前記下部オイルパンの
上端周囲を外向きに折曲した接合縁を溶接接合し
て成る内燃機関のオイルパン。 A sheet metal oil pan that is flange-jointed to the lower surface of the engine's crankcase is composed of a cylindrical upper oil pan and a box-shaped lower oil pan with a bottom and an open top, and around the lower end of the upper oil pan. An oil pan for an internal combustion engine, in which a joint edge formed by bending an upper end of the lower oil pan outward is welded to a joint edge formed by bending the upper end of the lower oil pan inwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4989780U JPS6136732Y2 (en) | 1980-04-11 | 1980-04-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4989780U JPS6136732Y2 (en) | 1980-04-11 | 1980-04-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56150810U JPS56150810U (en) | 1981-11-12 |
| JPS6136732Y2 true JPS6136732Y2 (en) | 1986-10-24 |
Family
ID=29644857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4989780U Expired JPS6136732Y2 (en) | 1980-04-11 | 1980-04-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6136732Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6224780Y2 (en) * | 1980-08-30 | 1987-06-24 |
-
1980
- 1980-04-11 JP JP4989780U patent/JPS6136732Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56150810U (en) | 1981-11-12 |
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