JPS6224778Y2 - - Google Patents
Info
- Publication number
- JPS6224778Y2 JPS6224778Y2 JP1980095638U JP9563880U JPS6224778Y2 JP S6224778 Y2 JPS6224778 Y2 JP S6224778Y2 JP 1980095638 U JP1980095638 U JP 1980095638U JP 9563880 U JP9563880 U JP 9563880U JP S6224778 Y2 JPS6224778 Y2 JP S6224778Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- rib
- ribs
- cylinder block
- block
- 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
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
本考案はＶ型多気筒エンジンにおけるシリンダ
ブロツクの改良に関するものである。[Detailed Description of the Invention] The present invention relates to an improvement of a cylinder block in a V-type multi-cylinder engine.
Ｖ型多気筒エンジンにおいては、左右のシリン
ダブロツクを結ぶ上面壁を設けてクランク室を外
気から遮断している。 In a V-type multi-cylinder engine, an upper wall connecting left and right cylinder blocks is provided to isolate the crank chamber from outside air.
しかしながら、このように左右のシリンダブロ
ツクを直接に結ぶ壁面を設けると、各シリンダの
振動が相手方に直接に伝導され、振動が増幅され
る不具合がある。 However, if a wall surface is provided that directly connects the left and right cylinder blocks in this way, there is a problem in that the vibrations of each cylinder are directly transmitted to the other cylinder and the vibrations are amplified.
第１図は従来のシリンダブロツクの断面を示す
もので、Ｖ型エンジンの一方のシリンダブロツク
１はその内周にシリンダ上部デツキ２とシリンダ
下部デツキ３を有している。このシリンダデツキ
にはライナー４が圧入され、図示しないピストン
を挿入するようになつている。 FIG. 1 shows a cross section of a conventional cylinder block. One cylinder block 1 of a V-type engine has an upper cylinder deck 2 and a lower cylinder deck 3 on its inner periphery. A liner 4 is press-fitted into this cylinder deck, and a piston (not shown) is inserted into the cylinder deck.
左右のシリンダブロツクの中央部にはカムシヤ
フト５が貫通しており、各シリンダヘツドの吸排
気弁を開閉するようにしてある。このカムシヤフ
ト５の上部には左右のシリンダブロツクを連結す
るブロツク上面壁６が形成してあり、クランク室
を画成するとともにＶ型シリンダブロツクの補強
材となつている。 A camshaft 5 passes through the center of the left and right cylinder blocks to open and close the intake and exhaust valves of each cylinder head. A block top wall 6 is formed on the top of the camshaft 5 to connect the left and right cylinder blocks, defining a crank chamber and serving as a reinforcing member for the V-shaped cylinder block.
従来のシリンダブロツクは上述のように構成し
てあるので、シリンダブロツク１の振動がブロツ
ク上面壁６を介して直接的に相手のシリンダブロ
ツクに伝達されるので、振動が増幅される不具合
があつた。そこで、シリンダ壁１とライナー４と
の間に流される冷却水７も振動により、その水圧
が変動する欠点もあつた。 Since the conventional cylinder block is constructed as described above, the vibration of the cylinder block 1 is directly transmitted to the mating cylinder block via the block top wall 6, so there is a problem that the vibration is amplified. . Therefore, the cooling water 7 flowing between the cylinder wall 1 and the liner 4 also has the disadvantage that its water pressure fluctuates due to vibrations.
例えば、特公昭45−30124号公報に記載された
シリンダブロツクは、大型のＶ型エンジンのシリ
ンダブロツクを溶接によつて順次組立製作してい
く技術を開示しているが、この技術では、リブと
いうよりはむしろヘツドボルトのボスがＶ型エン
ジンの各気筒の向い側の内バンクに設けられてお
らず、その反対側の外バンクの気筒間に設けられ
ている。 For example, the cylinder block described in Japanese Patent Publication No. 45-30124 discloses a technology for sequentially assembling cylinder blocks for large V-type engines by welding. Rather, the head bolt boss is not provided on the inner bank opposite each cylinder of the V-type engine, but is provided between the cylinders on the opposite outer bank.
したがつて、気筒の各側面に発生する振動を充
分に防止できず、またリブ自体も一方向に延びて
いるので、振動の方向によつては、充分な防止効
果が得られない。 Therefore, vibrations generated on each side of the cylinder cannot be sufficiently prevented, and since the ribs themselves extend in one direction, a sufficient prevention effect cannot be obtained depending on the direction of vibration.
したがつて、本考案の目的は、いかなる方向の
振動も充分に防止でき、かつ各気筒の上部の剛性
も向上できるシリンダブロツクを提供するにあ
る。 Therefore, an object of the present invention is to provide a cylinder block which can sufficiently prevent vibrations in any direction and which can also improve the rigidity of the upper part of each cylinder.
本考案によれば、Ｖ型多気筒エンジンのシリン
ダブロツクにおいて、シリンダ壁面に補強用のシ
リンダの軸線方向に延びる第１のリブと、この第
１のリブと直角方向に延びる第２のリブとを十字
形に形成し、その第２のリブの両端からさらに軸
線方向に延びる一対の第３のリブを形成し、それ
らの第１および第２のリブはヘツドボルトの肉厚
部と接続しておらず、第３のリブが前記肉厚部と
接続している。 According to the present invention, in a cylinder block of a V-type multi-cylinder engine, a first reinforcing rib extending in the axial direction of the cylinder and a second rib extending perpendicularly to the first rib are provided on the cylinder wall surface. A pair of third ribs are formed in a cross shape and further extend in the axial direction from both ends of the second rib, and the first and second ribs are not connected to the thick part of the head bolt. , a third rib is connected to the thick portion.
したがつて、十字状の第１および第２のリブに
よつて振動の方向に関係なく防振効果が生ずると
共に、ヘツドボルトの肉厚部（ボス）と接続した
一対の第３のリブによつてヘツドボルトの肉厚部
およびシリンダブロツク上壁の剛性も向上し、振
動を防止できる。しかも第１および第２のリブが
ヘツドボルトの肉厚部に接続していないので、シ
リンダブロツクの各気筒が互いに振動を伝達しな
い。 Therefore, the cross-shaped first and second ribs produce a vibration damping effect regardless of the direction of vibration, and the pair of third ribs connected to the thick wall part (boss) of the head bolt The rigidity of the thick wall part of the head bolt and the upper wall of the cylinder block is also improved, making it possible to prevent vibration. Moreover, since the first and second ribs are not connected to the thick wall portion of the head bolt, the cylinders of the cylinder block do not transmit vibrations to each other.
その結果、剛性があつて、かつ振動が防止でき
るＶ型シリンダブロツクを得ることができる。 As a result, it is possible to obtain a V-shaped cylinder block that has high rigidity and can prevent vibration.
第２図は本考案の実施例を示すもので、シリン
ダブロツク１１の内部にシリンダ上部デツキ１２
とシリンダ下部デツキ１３を有し、ライナー１４
が圧入されていることは従来と同様である。ま
た、左右のシリンダの中央にカムシヤフト１５が
配置され、その上部にブロツク上面壁１６が形成
されているが、このブロツク上面壁１６の左右端
部はシリンダブロツクの外面に設けたリブ１８と
は直接に連結されていない。 FIG. 2 shows an embodiment of the present invention, in which a cylinder upper deck 12 is installed inside the cylinder block 11.
and a cylinder lower deck 13, and a liner 14.
is press-fitted as in the conventional case. Further, a camshaft 15 is arranged in the center of the left and right cylinders, and a block top wall 16 is formed on the top of the camshaft 15, but the left and right ends of this block top wall 16 are not directly connected to the ribs 18 provided on the outer surface of the cylinder block. not connected to.
このリブ１８の形状は第２図のＺ矢視図である
第３図に示すようなもので、シリンダボア中心２
１に沿つたたてリブとよこリブを十字形に形成し
たものである。すなわち本考案ではシリンダの軸
線方向に延びる第１のリブ１８ａと、その第１の
リブ１８ａと直角方向に延びる第２のリブ１８ｂ
とで十字形のリブ１８を形成すると共に、第２の
リブ１８ｂの両側からシリンダの軸線方向に延び
る一対の第３のリブ１８ｃを有している。これら
の第３のリブ１８ｃの上端はヘツドボルト２０の
肉厚部１９と接続している。 The shape of this rib 18 is as shown in FIG. 3, which is a view from the Z arrow in FIG.
1, vertical ribs and horizontal ribs are formed in a cross shape. That is, in the present invention, a first rib 18a extends in the axial direction of the cylinder, and a second rib 18b extends in a direction perpendicular to the first rib 18a.
A cross-shaped rib 18 is formed by the second rib 18b, and a pair of third ribs 18c extend in the axial direction of the cylinder from both sides of the second rib 18b. The upper ends of these third ribs 18c are connected to the thick portion 19 of the head bolt 20.
第４図は第３図のＸ−Ｘ断面図であつて、シリ
ンダヘツドボルト２０を植設する肉厚部１９の間
のシリンダ壁面を補強するように十字形リブ１８
が形成されていることを示している。 FIG. 4 is a cross-sectional view taken along the line XX in FIG.
indicates that it is formed.
本考案は以上のようにシリンダ壁面を補強する
リブを設けるとともに、このリブとシリンダブロ
ツクの上面壁とを直接に接しないようにしたか
ら、左右のシリンダブロツクの振動伝達は遮断さ
れ、振動は増幅されることはない。 As described above, the present invention provides ribs to reinforce the cylinder wall surface, and also prevents the ribs from coming into direct contact with the top wall of the cylinder block, thereby blocking vibration transmission between the left and right cylinder blocks and amplifying the vibrations. It will not be done.
実験によれば、ライナーとシリンダ壁との間の
水圧側定部１７における水圧変動は従来のものに
比べて30％以上低下することが判明した。 According to experiments, it has been found that the water pressure fluctuation in the water pressure side fixed part 17 between the liner and the cylinder wall is reduced by more than 30% compared to the conventional one.
なお、本実施例ではリブをシリンダ外面に設け
た場合を説明したが、このリブはシリンダの内面
に形成してもよい。 In this embodiment, a case has been described in which the ribs are provided on the outer surface of the cylinder, but the ribs may be formed on the inner surface of the cylinder.
本考案は以上のようにシリンダに補強リブを設
け、このリブと上面壁とを直接に連結させないこ
とで、振動の低減と伝達を防止することで、全体
として防振効果を得るものである。 As described above, the present invention provides a reinforcing rib on the cylinder, and by not directly connecting the rib to the top wall, reduces vibration and prevents transmission, thereby achieving an overall vibration-proofing effect.
第１図は従来のシリンダブロツクの断面図、第
２図は本考案のシリンダブロツクの断面図、第３
図は第２図のＺ矢視図、第４図は第３図のＸ−Ｘ
断面図である。
１，１１……シリンダ壁面、２，１２……シリ
ンダ上部デツキ、３，１３……シリンダ下部デツ
キ、４，１４……ライナー、５，１５……カムシ
ヤフト、６，１６……ブロツク上面壁、１８……
リブ。
Fig. 1 is a sectional view of a conventional cylinder block, Fig. 2 is a sectional view of a cylinder block of the present invention, and Fig. 3 is a sectional view of a conventional cylinder block.
The figure is the Z arrow view in Figure 2, and Figure 4 is the X-X view in Figure 3.
FIG. 1, 11... Cylinder wall, 2, 12... Cylinder upper deck, 3, 13... Cylinder lower deck, 4, 14... Liner, 5, 15... Camshaft, 6, 16... Block top wall, 18 ……
rib.
Claims (1)
て、シリンダ壁面に補強用のシリンダの軸線方向
に延びる第１のリブと、この第１のリブと直角方
向に延びる第２のリブとを十字形に形成し、その
第２のリブの両端からさらに軸線方向に延びる一
対の第３のリブを形成し、それらの第１および第
２のリブはヘツドボルトの肉厚部と接続しておら
ず、第３のリブが前記肉厚部と接続していること
を特徴とするシリンダブロツク。 In a cylinder block of a V-type multi-cylinder engine, a first reinforcing rib extending in the axial direction of the cylinder and a second rib extending perpendicularly to the first rib are formed in a cross shape on the cylinder wall surface, A pair of third ribs are formed further extending in the axial direction from both ends of the second rib, the first and second ribs are not connected to the thick part of the head bolt, and the third rib is A cylinder block characterized in that it is connected to the thick wall portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980095638U JPS6224778Y2 (en) | 1980-07-09 | 1980-07-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980095638U JPS6224778Y2 (en) | 1980-07-09 | 1980-07-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5720541U JPS5720541U (en) | 1982-02-02 |
| JPS6224778Y2 true JPS6224778Y2 (en) | 1987-06-24 |
Family
ID=29457514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980095638U Expired JPS6224778Y2 (en) | 1980-07-09 | 1980-07-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6224778Y2 (en) |
-
1980
- 1980-07-09 JP JP1980095638U patent/JPS6224778Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5720541U (en) | 1982-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5950864B2 (en) | automotive engine | |
| JPH0115879Y2 (en) | ||
| US5253615A (en) | Cylinder block cylinder bore isolator | |
| US5850814A (en) | Cylinder bore isolator core for casting engine cylinder blocks | |
| US5964196A (en) | Cylinder head for a multi-cylinder internal combustion engine | |
| JPS6224778Y2 (en) | ||
| US5743218A (en) | Liquid cooled cylinder head for an internal combustion engine | |
| JP2007120506A (en) | Multi-cylinder engine | |
| JP4196803B2 (en) | Internal combustion engine cylinder block | |
| JPH0245495Y2 (en) | ||
| JPS59126051A (en) | Cylinder head | |
| JPH0442508Y2 (en) | ||
| JPH088281Y2 (en) | Integrated cylinder block for internal combustion engine | |
| JPH08303295A (en) | Cylinder block for engine | |
| JPH08200154A (en) | Cylinder block structure of reciprocation type internal combustion engine | |
| JPH088290Y2 (en) | Integrated cylinder block for internal combustion engine | |
| JPS6114425A (en) | Suction device for engine | |
| JPH0248734B2 (en) | ENJINNOSHIRINDABUROTSUKU | |
| JPH0612239Y2 (en) | Cylinder head structure for sub-chamber engine | |
| JP3245150B2 (en) | Engine crankcase reinforcement | |
| JPH0115877Y2 (en) | ||
| JPH0218418B2 (en) | ||
| JP6721387B2 (en) | Engine member and internal combustion engine including the same | |
| JPH0116333B2 (en) | ||
| JPH0110422Y2 (en) |