JPS5856410Y2 - Hanging metal main bearing structure for reciprocating internal combustion engines - Google Patents
Hanging metal main bearing structure for reciprocating internal combustion enginesInfo
- Publication number
- JPS5856410Y2 JPS5856410Y2 JP1977002470U JP247077U JPS5856410Y2 JP S5856410 Y2 JPS5856410 Y2 JP S5856410Y2 JP 1977002470 U JP1977002470 U JP 1977002470U JP 247077 U JP247077 U JP 247077U JP S5856410 Y2 JPS5856410 Y2 JP S5856410Y2
- Authority
- JP
- Japan
- Prior art keywords
- main bearing
- internal combustion
- cylinder block
- plate
- bearing structure
- 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
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
【考案の詳細な説明】
本考案は往復動式内燃機関の吊メタル式主軸受構造に関
するものである。[Detailed Description of the Invention] The present invention relates to a suspended metal main bearing structure for a reciprocating internal combustion engine.
従来、この種構造の内燃機関のシリンダブロックの剛性
向上策として、シリンダブロック下面に単に板状補強部
材を橋渡し状に固着したものがあるが、この板状補強部
材はメタルキャップとは無関係にその両端においてシリ
ンダブロック下面に締結されているために、スパンが長
くなり、その中央部における変形が大きく、十分なるシ
リンダブロックの剛性向上が確保されないばかりか、機
関振動により前記板状補強部材が振動し機関騒音の原因
になるという欠点がある。Conventionally, as a measure to improve the rigidity of the cylinder block of an internal combustion engine with this type of structure, a plate-shaped reinforcing member was simply fixed to the bottom surface of the cylinder block in a bridging manner, but this plate-shaped reinforcing member was Since both ends are fastened to the lower surface of the cylinder block, the span becomes long and the deformation at the center is large, and not only is it not possible to ensure sufficient rigidity improvement of the cylinder block, but also the plate-shaped reinforcing member vibrates due to engine vibration. The disadvantage is that it causes engine noise.
そこで本考案は、前記欠点を解消するためになされたも
のでシリンダブロックの剛性を確実に向上すると共に、
機関騒音をも大幅に低減し、さらに分解、組立、調整等
の作業も容易な優れた往復動式内燃機関の吊メタル式主
軸受構造を提供せんとするものである。Therefore, the present invention was devised to eliminate the above-mentioned drawbacks, and not only improves the rigidity of the cylinder block reliably, but also improves the rigidity of the cylinder block.
It is an object of the present invention to provide an excellent suspended metal main bearing structure for a reciprocating internal combustion engine that greatly reduces engine noise and is also easy to disassemble, assemble, and adjust.
そしてその特徴とするところは、シリンダブロック１の
主軸受部５にメタルキャップ６を介してクランクシャフ
ト３を保持した往復動式内燃機関の吊メタル式主軸受構
造において、１個または複数個の板状補強部材８をシリ
ンダブロック１の下端面９に橋渡し状に固着し、この板
状補強部材８を介してジャーナルメタル４用メタルキヤ
ツプ６をメタルキャップボルト７により締結するように
構成した点にある。It is characterized by a suspended metal main bearing structure for a reciprocating internal combustion engine in which the crankshaft 3 is held on the main bearing part 5 of the cylinder block 1 via a metal cap 6. The plate-shaped reinforcing member 8 is fixed to the lower end surface 9 of the cylinder block 1 in a bridging manner, and the metal cap 6 for the journal metal 4 is fastened with the metal cap bolt 7 via the plate-shaped reinforcing member 8. .
以下、図示の実施例により本考案を説明すれば、図は本
考案による吊メタル式主軸受構造、を示す一部切欠した
図であり、１はシリンダブロック、２はシリンダブロッ
ク下部に固着したオイルパン、３はクランクシャフト、
４はジャーナルメタル、５はシリンダブロック１の主軸
受部、６はメタルキャップで、後述する板状補強部材８
を介してメタルキャップボルト７によりシリンダブロッ
ク１の主軸受部５に下方から上方に向って締結され、ジ
ャーナルメタル４を介してクランクシャフト３を支承す
る。Hereinafter, the present invention will be explained with reference to the illustrated embodiment. The figure is a partially cutaway view showing a suspended metal main bearing structure according to the present invention, 1 is a cylinder block, 2 is oil fixed to the lower part of the cylinder block. Pan, 3 is the crankshaft,
4 is a journal metal, 5 is a main bearing part of the cylinder block 1, 6 is a metal cap, and a plate-shaped reinforcing member 8, which will be described later.
It is fastened to the main bearing portion 5 of the cylinder block 1 from below to above by a metal cap bolt 7, and supports the crankshaft 3 via the journal metal 4.
８は本考案により設けた板状補強部材であり、両側を、
前記シリンダブロック１の下部を内方に向って突出形成
した左右各補強部材取付部１ａの下端面９間に橋渡し状
にボルト１０により固着する。8 is a plate-shaped reinforcing member provided according to the present invention, and both sides are
The lower end surfaces 9 of the left and right reinforcing member attachment portions 1a formed to protrude inward from the lower portion of the cylinder block 1 are fixed by bolts 10 in a bridging manner.
１１はメタルキャップボルト７を締付けるナツトであり
、このメタルキャップボルト７は板状補強部材８を貫通
したねじ部にナツト１１を締付けてメタルキャップ６を
図示の如く主軸受部５の下部に締結している。Reference numeral 11 denotes a nut for tightening the metal cap bolt 7, and the metal cap bolt 7 is tightened on the threaded portion passing through the plate-shaped reinforcing member 8, and the metal cap 6 is fastened to the lower part of the main bearing portion 5 as shown in the figure. ing.
前記板状補強部材８は、メタルキャップ６の締結位置に
応じて複数個に分けて配設してもよく、また１個の板状
補強部材として構成し、前述したようにシリンダブロッ
ク１の下部内側に形成した左右各補強部材取付部１ａの
下端面９全体をおおように構成してもよい。The plate-shaped reinforcing member 8 may be divided into a plurality of parts depending on the fastening position of the metal cap 6, or may be configured as one plate-shaped reinforcing member, and as described above, the plate-shaped reinforcing member 8 may be arranged in a plurality of pieces depending on the fastening position of the metal cap 6. It may be configured to cover the entire lower end surface 9 of each of the left and right reinforcing member attachment portions 1a formed inside.
後者の場合には潤滑油をオイルパン２へ戻すための穴を
適当数設ける必要がある。In the latter case, it is necessary to provide an appropriate number of holes for returning lubricating oil to the oil pan 2.
また連接棒の軌跡が大きい場合には、板状補強部材８に
図示の如く逃げ穴部１２を設ける必要がある。Further, when the trajectory of the connecting rod is large, it is necessary to provide a clearance hole 12 in the plate-shaped reinforcing member 8 as shown in the figure.
本考案は上述したように、シリンダブロック１の主軸受
部５にメタルキャップ６を介してクランクシャフト３を
保持した往復動式内燃機関の吊メタル式主軸受構造にお
いて、１個または複数個の板状補強部材８をシリンダブ
ロック１の下端面９に橋渡し状に固着したから、この板
状補強部材８によりシリンダブロック１のシリンダ方向
断面を、閉じた断面構造とすることができると共に、板
状補強部材８のスパンを短がくすることができて、板状
補強部材８の中央部における変形を防止でき、シリンダ
ブロック全体の剛性を確実に向上せしめることができる
。As described above, the present invention is applied to a suspended metal main bearing structure for a reciprocating internal combustion engine in which a crankshaft 3 is held on the main bearing portion 5 of a cylinder block 1 via a metal cap 6. Since the plate-shaped reinforcing member 8 is fixed to the lower end surface 9 of the cylinder block 1 in a bridging manner, the plate-shaped reinforcing member 8 allows the cylinder block 1 to have a closed cross-sectional structure in the cylinder direction. The span of the member 8 can be shortened, deformation of the central portion of the plate-shaped reinforcing member 8 can be prevented, and the rigidity of the entire cylinder block can be reliably improved.
また本考案は上述した板状補強部材Ｂを介してメタルキ
ャップ６を主軸受部５にメタルキャップボルト７で下方
から上方に向って締結したから、板状補強部材８の中央
部における変形をさらに防止できる一方、機関振動に起
因する板状補強部材８の振動を効果的に防止できて、騒
音を大幅に低減することができる。Further, in the present invention, since the metal cap 6 is fastened to the main bearing portion 5 from below to the top with the metal cap bolts 7 via the above-mentioned plate-shaped reinforcing member B, deformation in the central part of the plate-shaped reinforcing member 8 is further reduced. At the same time, it is also possible to effectively prevent vibrations of the plate-shaped reinforcing member 8 caused by engine vibrations, thereby significantly reducing noise.
図は本考案の吊メタル式主軸受構造を示す一部切欠した
図である。
１・・・シリンダブロック、１ａ・・・補強部材取付部
、２・・・オイルパン、３・・・クランクシャフト、４
・・・ジャーナルメタル、５・・・シリンダブロックの
主軸受部、６・・・メタルキャップ、７・・・メタルキ
ャップボルト、８・・・板状補強部材、９・・・下端面
、１０・・・ボルト、１１・・・ナツト、１２・・・逃
げ穴部。The figure is a partially cutaway view showing the suspended metal main bearing structure of the present invention. DESCRIPTION OF SYMBOLS 1... Cylinder block, 1a... Reinforcement member attachment part, 2... Oil pan, 3... Crankshaft, 4
... Journal metal, 5... Main bearing portion of cylinder block, 6... Metal cap, 7... Metal cap bolt, 8... Plate-shaped reinforcing member, 9... Lower end surface, 10... ...Bolt, 11...Nut, 12...Escape hole.
Claims (1)
介してクランクシャフト３を保持した往復動式内燃機関
の吊メタル式主軸受構造において、１個または複数個の
板状補強部材８をシリンダブロック１の下端面９に橋渡
し状に固着し、この板状補強部材８を介してジャーナル
メタル４用メタルキヤツプ６をメタルキャップボルト７
により締結したことを特徴とする往復動式内燃機関の吊
メタル式主軸受構造。In a suspended metal main bearing structure for a reciprocating internal combustion engine in which a crankshaft 3 is held on the main bearing portion 5 of a cylinder block 1 via a metal cap 6, one or more plate-shaped reinforcing members 8 are attached to the cylinder block 1. The metal cap 6 for the journal metal 4 is fixed to the lower end surface 9 of the metal cap bolt 7 via this plate-shaped reinforcing member 8.
A suspended metal main bearing structure for a reciprocating internal combustion engine, which is characterized by being fastened by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977002470U JPS5856410Y2 (en) | 1977-01-14 | 1977-01-14 | Hanging metal main bearing structure for reciprocating internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977002470U JPS5856410Y2 (en) | 1977-01-14 | 1977-01-14 | Hanging metal main bearing structure for reciprocating internal combustion engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5398218U JPS5398218U (en) | 1978-08-09 |
| JPS5856410Y2 true JPS5856410Y2 (en) | 1983-12-26 |
Family
ID=28689466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977002470U Expired JPS5856410Y2 (en) | 1977-01-14 | 1977-01-14 | Hanging metal main bearing structure for reciprocating internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5856410Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934049U (en) * | 1982-08-29 | 1984-03-02 | ダイハツ工業株式会社 | Internal combustion engine oil pan stiffener |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220568Y2 (en) * | 1973-02-12 | 1977-05-12 |
-
1977
- 1977-01-14 JP JP1977002470U patent/JPS5856410Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5398218U (en) | 1978-08-09 |
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