JPH0111963Y2 - - Google Patents
Info
- Publication number
- JPH0111963Y2 JPH0111963Y2 JP1982063573U JP6357382U JPH0111963Y2 JP H0111963 Y2 JPH0111963 Y2 JP H0111963Y2 JP 1982063573 U JP1982063573 U JP 1982063573U JP 6357382 U JP6357382 U JP 6357382U JP H0111963 Y2 JPH0111963 Y2 JP H0111963Y2
- Authority
- JP
- Japan
- Prior art keywords
- outer frame
- frame member
- gear case
- auxiliary equipment
- engine
- 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
- 238000013016 damping Methods 0.000 claims description 19
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000001902 propagating effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Description
【考案の詳細な説明】 この考案は内燃機関のギアケースに関する。[Detailed explanation of the idea] This invention relates to a gear case for an internal combustion engine.
機関振動に伴い発生する騒音を抑制するため
に、例えば特開昭55−94055号に開示されるよう
に、機関のギアケースに改良を加え、ギアケース
の表面から発生する騒音を低減するようにしたも
のが知られている。 In order to suppress the noise generated due to engine vibration, improvements were made to the engine gear case to reduce the noise generated from the surface of the gear case, as disclosed in JP-A No. 55-94055. What has been done is known.
しかしながら、このような従来のギアケースは
シリンダブロツクと剛接されていることから、シ
リンダブロツクとともに共振振動を起こすので、
ギアケース表面からの騒音を必ずしも十分に低減
するものとはいえなかつた。 However, since such a conventional gear case is in rigid contact with the cylinder block, it causes resonance vibration with the cylinder block.
It cannot be said that the noise from the surface of the gear case is necessarily sufficiently reduced.
本考案はこのような従来の課題を解決すること
を目的とする。 The present invention aims to solve such conventional problems.
このために本考案では、機関本体に剛接したギ
アケースの素材を所定の剛性をもつ外枠部材で形
成し、この外枠部材には補機等を支持する補機取
付部を残して穴空き部を形成すると共に、この外
枠部材の外側表面に、前記穴空き部を被覆するよ
うに所定の肉厚をもつ制振部材を貼付した。 To this end, in the present invention, the material of the gear case that is in rigid contact with the engine body is formed of an outer frame member having a predetermined rigidity, and this outer frame member has holes in it, leaving auxiliary equipment mounting parts to support the auxiliary equipment, etc. A vacant portion was formed, and a damping member having a predetermined thickness was attached to the outer surface of the outer frame member so as to cover the vacant portion.
上記構成により、ギアケースを構成する外枠部
材そのものは機関本体はらの振動伝播により大き
く振動しようとするが、その外側表面に貼付した
制振部材がこれを抑制するため全体としては振動
が減少する。しかも、制振部材の貼付箇所を補機
等の取付部以外の穴空き部としてあるため機関重
量が増大するようなこともない。 With the above configuration, the outer frame member itself that makes up the gear case tends to vibrate greatly due to vibration propagation from the engine body, but the vibration damping member attached to the outer surface suppresses this, so the vibration is reduced overall. . Moreover, since the vibration damping member is attached to a hole other than the attachment part of the auxiliary equipment, the weight of the engine does not increase.
以下、本考案の実施例を図面にもとづいて説明
する。 Hereinafter, embodiments of the present invention will be described based on the drawings.
第１図に示すように、ギアケースの外枠部材１
を形成する。この場合は、ギアケースは機関の前
方側に取り付けられるものを示す。外枠部材１に
は、機関の駆動源となるクランクシヤフトを軸支
するクランクサポート２が形成されるほか、クラ
ンクシヤフトとベルトなどを介して駆動されるジ
エネレータのサポート３、機関冷却用の冷却フア
ンサポート４、ハイドロポンプサポート５、回転
計サポート６など補機取付部が形成される。 As shown in FIG. 1, the outer frame member 1 of the gear case
form. In this case, the gear case is shown to be attached to the front side of the engine. The outer frame member 1 is formed with a crank support 2 that pivotally supports a crankshaft that is the drive source of the engine, a support 3 for a generator driven via the crankshaft and a belt, and a cooling fan for cooling the engine. Auxiliary equipment mounting parts such as a support 4, a hydro pump support 5, and a tachometer support 6 are formed.
７はクランクスプロケツトとタイミングチエー
ンを介して連動するカムスプロケツトを軸支する
サポート部である。 Reference numeral 7 denotes a support portion that pivotally supports a cam sprocket that is interlocked with the crank sprocket via a timing chain.
そして、図中斜線で示す箇所が上述の補機類の
取付部となる。外枠部材１のうち、この補機取付
部を除く箇所には、ギアケースとして所定の剛性
を確保したうえで、穴あき部が形成される。 The hatched areas in the figure are the attachment parts for the above-mentioned auxiliary equipment. A perforated portion is formed in the outer frame member 1 at a location other than the auxiliary equipment mounting portion while ensuring a predetermined rigidity as a gear case.
このように形成した外枠部材１の外側表面に、
第２図、第３図に示すように、所定の肉厚（例え
ば１mm程度）をもつ制振部材としての制振鋼板８
が貼付される。制振部材としては、こ制振鋼板８
のほか、樹脂カバー、などでもよい。 On the outer surface of the outer frame member 1 formed in this way,
As shown in FIGS. 2 and 3, a damping steel plate 8 as a damping member having a predetermined wall thickness (for example, about 1 mm)
will be affixed. As a damping member, this damping steel plate 8 is used.
In addition to this, a resin cover, etc. may also be used.
制振鋼板８の外枠部材１へ取り付けは接着剤に
より固着しているが、、このほか図示しないボル
トにより締結してもよい。 The damping steel plate 8 is attached to the outer frame member 1 using an adhesive, but it may also be fastened using bolts (not shown).
制振鋼板８は、外枠部材１の穴あき部をすべて
被覆するとともに、第１図に示す斜線の補機取付
部を除く外枠部材１の外側表面に一面に渡つて貼
付される。 The damping steel plate 8 covers all the perforated parts of the outer frame member 1, and is attached to the entire outer surface of the outer frame member 1 except for the auxiliary equipment attachment parts shown in the diagonal lines in FIG.
そして、このように形成されたギアケースは、
図示しないシリンダブロツク、あるいはシリンダ
ヘツドにボルト結合されるとともに、ギアケース
の下面部９ではオイルパンをボルト結合する。 The gear case formed in this way is
It is bolted to a cylinder block or cylinder head (not shown), and an oil pan is bolted to the lower surface 9 of the gear case.
このように構成したため、ギアケースの内側か
ら伝播する振動あるいは、シリンダブロツクなど
を通じてギアケース周囲から伝播する振動によ
り、外枠部材１はかなり大きな振動を亭受する
が、この外枠部材１の表面に貼付される制振鋼板
８が振動を減衰吸収するので、これら外枠１と制
振鋼板８から発生する振動騒音を著しく低減する
ことができる。 Because of this configuration, the outer frame member 1 receives quite large vibrations due to vibrations propagating from inside the gear case or vibrations propagating from around the gear case through the cylinder block, etc. However, the surface of the outer frame member 1 Since the damping steel plate 8 attached to the outer frame 1 damps and absorbs vibrations, vibration noise generated from the outer frame 1 and the damping steel plate 8 can be significantly reduced.
しかも、ギアケースの構成部材としての外枠部
材１は、機関ケースとしての所定の剛性を確保し
たうえでできるかぎり広い面積の穴あき部を形成
しているので、このぶんだけ機関の軽量化が図ら
れ、従つて車両の燃費低減ないし加速性の向上を
図れるという効果もある。 Moreover, the outer frame member 1, which is a component of the gear case, has a perforated part with the widest possible area while ensuring the specified rigidity for the engine case, so the weight of the engine can be reduced by this amount. This also has the effect of reducing fuel consumption and improving acceleration of the vehicle.
以上のように本考案によれば、内燃機関のギア
ケースの基材を所定の剛性をもつ外枠部材で形成
し、この外枠部材の外側表面のうち、補機取付箇
所を除いた箇所に制振部材を貼付したので、ギア
ケースの内側ないし周囲から伝播する振動を制振
部材で減衰吸収し、ギアケースから伝播する振動
騒音を低下することによつて、機関全体から生ず
る騒音をかなり低減することができるのである。 As described above, according to the present invention, the base material of the gear case of an internal combustion engine is formed of an outer frame member having a predetermined rigidity, and the outer surface of the outer frame member, excluding the auxiliary equipment mounting location, is Since the vibration damping member is attached, the vibration propagating from inside or around the gear case is attenuated and absorbed by the damping member, reducing the vibration noise propagating from the gear case, thereby significantly reducing the noise generated from the entire engine. It is possible to do so.
また、本考案によれば、上述のとおり制振部材
の貼付箇所を穴空き部としてあるので、制振部材
を設けたことによる重量の増加が無く、むしろ制
振効果を考慮すれば軽量化を達成できるという効
果も得られる。 In addition, according to the present invention, as mentioned above, since the damping member is attached as a hole, there is no increase in weight due to the provision of the damping member, and in fact, the weight can be reduced by considering the damping effect. It also has the effect of being achievable.
第１図は本考案の実施例における外枠部材をあ
らわす正面図、第２図は本考案の実施例を示す正
面図、第３図は第２図の−線断面図である。
１……外枠部材、２……クランクサポート、８
……制振鋼板（制振部材）。
FIG. 1 is a front view showing an outer frame member according to an embodiment of the present invention, FIG. 2 is a front view showing an embodiment of the present invention, and FIG. 3 is a sectional view taken along the line -- in FIG. 2. 1...Outer frame member, 2...Crank support, 8
...Vibration damping steel plate (vibration damping member).
Claims (1)
剛性をもつ外枠部材で形成し、この外枠部材には
補機等を支持する補機取付部を残して穴空き部を
形成すると共に、この外枠部材の外側表面に、前
記穴空き部を被覆するように所定の肉厚をもつ制
振部材を貼付したことを特徴とする内燃機関のギ
アケース。 The material of the gear case that is in rigid contact with the engine body is formed of an outer frame member having a predetermined rigidity, and a hole is formed in this outer frame member, leaving an auxiliary equipment mounting part for supporting the auxiliary equipment, etc., and A gear case for an internal combustion engine, characterized in that a vibration damping member having a predetermined thickness is attached to the outer surface of the outer frame member so as to cover the perforated portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6357382U JPS58165227U (en) | 1982-04-30 | 1982-04-30 | Internal combustion engine gear case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6357382U JPS58165227U (en) | 1982-04-30 | 1982-04-30 | Internal combustion engine gear case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58165227U JPS58165227U (en) | 1983-11-02 |
| JPH0111963Y2 true JPH0111963Y2 (en) | 1989-04-07 |
Family
ID=30073673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6357382U Granted JPS58165227U (en) | 1982-04-30 | 1982-04-30 | Internal combustion engine gear case |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58165227U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008142981A1 (en) * | 2007-05-18 | 2008-11-27 | Autoliv Development Ab | Seatbelt retractor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5516097U (en) * | 1979-08-24 | 1980-02-01 |
-
1982
- 1982-04-30 JP JP6357382U patent/JPS58165227U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5516097U (en) * | 1979-08-24 | 1980-02-01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58165227U (en) | 1983-11-02 |
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