JPS5918110Y2 - Soundproof cover structure for the front crankshaft of a large internal combustion engine - Google Patents
Soundproof cover structure for the front crankshaft of a large internal combustion engineInfo
- Publication number
- JPS5918110Y2 JPS5918110Y2 JP12346179U JP12346179U JPS5918110Y2 JP S5918110 Y2 JPS5918110 Y2 JP S5918110Y2 JP 12346179 U JP12346179 U JP 12346179U JP 12346179 U JP12346179 U JP 12346179U JP S5918110 Y2 JPS5918110 Y2 JP S5918110Y2
- Authority
- JP
- Japan
- Prior art keywords
- crankshaft
- combustion engine
- internal combustion
- soundproof
- cover
- 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
- 238000002485 combustion reaction Methods 0.000 title claims description 9
- 239000011358 absorbing material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
本考案は内燃機関の反フライホイール側のクランク軸の
防音カバーの構造に関する。[Detailed Description of the Invention] The present invention relates to the structure of a soundproof cover for a crankshaft on the side opposite to the flywheel of an internal combustion engine.
本考案の実施例を図面に従って説明する。Embodiments of the present invention will be described with reference to the drawings.
内燃機関の反フライホイール側、即ち一般に前部という
部分には、第１図に示す燃料噴射ポンプ４、ガバナ、冷
却水ポンプ５および潤滑油ポンプ６、等がギヤーケース
の蓋８に取付けられている。A fuel injection pump 4, a governor, a cooling water pump 5, a lubricating oil pump 6, etc. shown in FIG. 1 are attached to the lid 8 of the gear case on the side opposite to the flywheel of the internal combustion engine, that is, generally at the front part. There is.
防音型の内燃機関においては、ギヤーケースの蓋８の外
側にギヤーケース防音カバー９を設ける。In a soundproof internal combustion engine, a gear case soundproof cover 9 is provided outside the gear case lid 8.
ギヤーケース防音カバー９の内部には吸音材を貼付ける
。A sound absorbing material is attached to the inside of the gear case soundproof cover 9.
しかし、第２図に示すクランク軸３は捻り振動の測定、
点検のため、ギヤーケースの蓋８およびギヤーケース防
音カバー９に孔があり、シルクバットと呼ぶ、鍔のある
円筒形のクランク軸前部蓋１２により蓋されている。However, the crankshaft 3 shown in FIG.
For inspection, holes are provided in the gear case lid 8 and the gear case soundproof cover 9, which are covered by a cylindrical crankshaft front lid 12 with a brim called a silk bat.
この円筒形のクランク軸前部蓋１２は、パツキン１３お
よび１４により挾持され、ボルト１６および゛当金１５
によりギヤーケース蓋８に螺着されている。This cylindrical crankshaft front cover 12 is held between gaskets 13 and 14, and bolts 16 and a stopper 15.
It is screwed onto the gear case lid 8.
しかし、このクランク軸前部蓋１２のみではクランクケ
ース内の騒音を遮音するには充分でないから、更にクラ
ンク軸前部蓋１２の−廻り大きなりランク軸前部防音キ
ャップ１０を設けて、クランク軸前部蓋１２に被せる。However, since this crankshaft front cover 12 alone is not sufficient to insulate the noise inside the crankcase, a large crankshaft front soundproof cap 10 is further provided around the circumference of the crankshaft front cover 12. Cover the front lid 12.
クランク軸前部防音キャップ１０の内面には吸音材を貼
付け、また、キャップの鍔部（折り返しａ）は、ギヤー
ケース防音カバー９の当てゴム１７と接し、脱落するこ
となく、また、金属接触を避けて振動音の伝播を防止す
る。A sound-absorbing material is attached to the inner surface of the crankshaft front soundproof cap 10, and the flange (fold a) of the cap is in contact with the rubber pad 17 of the gear case soundproof cover 9, preventing it from falling off and preventing metal contact. to prevent the propagation of vibration noise.
以上詳細説明したように本考案はクランク軸前部の蓋を
二重構造とし、接触面にパツキン、当てゴム、吸音材を
用いて金属接触を避けたので、遮音効果が大きく、また
内燃機関の振動が伝播し難いから、内燃機関の騒音を減
少することができる。As explained in detail above, this invention has a double structure for the front cover of the crankshaft, and uses gaskets, padding rubber, and sound-absorbing materials on the contact surface to avoid metal contact, resulting in a large sound insulation effect and Since vibrations are difficult to propagate, the noise of the internal combustion engine can be reduced.
第１図は本考案実施例の内燃機関の前部（反フライホイ
ール側）正面図、第２図は同側断面図。FIG. 1 is a front view of the front part (the side opposite to the flywheel) of an internal combustion engine according to an embodiment of the present invention, and FIG. 2 is a sectional view of the same side.
Claims (1)
ランク軸前部蓋をギヤーケース防音カバーから突出させ
、該クランク軸前部蓋の外側に吸音材を付着するクラン
ク軸前部防音キャップを設けるに、ギヤーケース防音カ
バーに設けた当てゴムと該クランク軸前部防音キャップ
の端部を折返し形成したフックによって係脱自在に構成
したことを特徴とする大型内燃機関のクランク軸前部の
防音カバーの構造。A front crankshaft cover of a gear case on the side opposite to the flywheel of a vertical internal combustion engine is made to protrude from a gear case soundproof cover, and a crankshaft front soundproof cap is provided with a sound absorbing material attached to the outside of the crankshaft front cover. , a soundproof cover for the front part of a crankshaft of a large internal combustion engine, characterized in that the soundproof cover for the front part of a crankshaft of a large internal combustion engine is configured to be detachable by a rubber pad provided on the soundproof cover for a gear case and a hook formed by folding back the end of the soundproof cap for the front part of the crankshaft. structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12346179U JPS5918110Y2 (en) | 1979-09-05 | 1979-09-05 | Soundproof cover structure for the front crankshaft of a large internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12346179U JPS5918110Y2 (en) | 1979-09-05 | 1979-09-05 | Soundproof cover structure for the front crankshaft of a large internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5639822U JPS5639822U (en) | 1981-04-14 |
| JPS5918110Y2 true JPS5918110Y2 (en) | 1984-05-25 |
Family
ID=29355412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12346179U Expired JPS5918110Y2 (en) | 1979-09-05 | 1979-09-05 | Soundproof cover structure for the front crankshaft of a large internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5918110Y2 (en) |
-
1979
- 1979-09-05 JP JP12346179U patent/JPS5918110Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5639822U (en) | 1981-04-14 |
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