JPS5851405Y2 - Internal combustion engine intake silencer - Google Patents
Internal combustion engine intake silencerInfo
- Publication number
- JPS5851405Y2 JPS5851405Y2 JP14561278U JP14561278U JPS5851405Y2 JP S5851405 Y2 JPS5851405 Y2 JP S5851405Y2 JP 14561278 U JP14561278 U JP 14561278U JP 14561278 U JP14561278 U JP 14561278U JP S5851405 Y2 JPS5851405 Y2 JP S5851405Y2
- Authority
- JP
- Japan
- Prior art keywords
- intake
- cover member
- umbrella
- internal combustion
- silencer
- 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
- Exhaust Silencers (AREA)
Description
【考案の詳細な説明】
本考案は、防振構造を有し、且つ吸気音の低減効果を増
大せしめるような吸音材を内装せる内燃機関の吸気消音
器に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an intake silencer for an internal combustion engine, which has a vibration-proof structure and is equipped with a sound-absorbing material that increases the effect of reducing intake noise.
従来の内燃機関、特に舶用内燃機関においては、その吸
気マニホールドの吸入孔附近で発生する吸気騒音を低減
するため、吸気マニホールドに対し、傘形のカバ一部材
を直接又は下部受は部材を介して固設せしめ、吸気消音
器を構成しているのが一般的であるが、その傘形のカバ
一部材を吸気マニホールドに対して防振支持せしめてい
る例はなく、そのため機関の振動が傘形のカバ一部材に
伝達し、吸気消音器の耐久性が低下するという欠点があ
る。In conventional internal combustion engines, especially marine internal combustion engines, in order to reduce the intake noise generated near the intake hole of the intake manifold, an umbrella-shaped cover member is attached directly to the intake manifold, or a lower cover member is installed through a member. Generally, it is fixedly installed and constitutes an intake silencer, but there is no example in which the umbrella-shaped cover member is supported against the intake manifold for vibration isolation. The problem is that the noise is transmitted to the cover member, reducing the durability of the intake silencer.
また、吸気消音器の吸気通路内の気流音及び機械音を低
減せしめる対策がなされておらず、吸気消音器でそれら
吸気騒音を充分に吸収することができないという問題が
ある。Further, there is a problem in that no measures are taken to reduce airflow noise and mechanical noise in the intake passage of the intake silencer, and the intake silencer cannot sufficiently absorb the intake noise.
そこで本考案は、前記従来の欠点を解消するため、吸気
消音器の傘形のカバ一部材を防振支持せしめると共に、
吸気消音器に吸音材を内装せしめることにより、機関振
動を吸収し、且つ吸気騒音の低減をはかることを目的と
したものである。Therefore, in order to eliminate the above-mentioned conventional drawbacks, the present invention provides vibration-proof support for the umbrella-shaped cover member of the intake silencer, and
The purpose of this is to absorb engine vibrations and reduce intake noise by incorporating a sound absorbing material inside the intake silencer.
即ち、本考案は、内燃機関の吸気マニホールドに固設さ
れた吸気消音器において、該吸気消音器の傘形カバ一部
材の吸気マニホールドへの取付部に防振材を介在せしめ
、かつ該カバ一部材と吸気マニホールドとの間に、その
内部に吸音材を挟装せる二重構造の多孔部材を介装せし
めると共に、該カバ一部材の下端部を少なくとも多孔部
材を覆う位置まで延伸して形成せしめることにより構成
される。That is, the present invention provides an intake silencer that is fixed to an intake manifold of an internal combustion engine, in which a vibration isolating material is interposed at the attachment portion of an umbrella-shaped cover member of the intake silencer to the intake manifold, and the cover is fixed to the intake manifold. A double-structured porous member having a sound absorbing material sandwiched therein is interposed between the member and the intake manifold, and the lower end of the cover member is formed to extend at least to a position covering the porous member. It consists of:
以下図面にもとすいて本考案の実施例を説明する。Embodiments of the present invention will be described below with reference to the drawings.
図面に示す本考案の実施例においては、吸気消音器の傘
形カバ一部材２及び下部受は部材３を別体に形成し、そ
れぞれを貫通して吸気マニホールド１に対し取付ボルト
５により固設せしめているが、その際、傘形カバ一部材
２と下部受は部材３との間には、内部に吸音材７を内装
せしめた二重構造の多孔部材である金網６，６′を介装
せしめて、気流音及びシリンダヘッド側からの機械音を
吸収するようにしている。In the embodiment of the present invention shown in the drawings, the umbrella-shaped cover member 2 and lower support member 3 of the intake silencer are formed separately, and are fixed to the intake manifold 1 with mounting bolts 5 that pass through each member. However, in this case, a wire mesh 6, 6', which is a double-layer porous member with a sound absorbing material 7 inside, is interposed between the umbrella-shaped cover member 2 and the lower support member 3. It is designed to absorb airflow noise and mechanical noise from the cylinder head side.
なお、傘形カバ一部材２の下端部は、少なくとも金網６
．６′を覆う位置まで延伸して形成し、また傘形カバ一
部材２と下部受は部材３との間には、取付ボルト５を貫
通せしめるパイプ状の中間ピース４を介在せしめている
。Note that the lower end of the umbrella-shaped cover member 2 has at least a wire mesh 6
．． A pipe-shaped intermediate piece 4 through which a mounting bolt 5 passes is interposed between the umbrella-shaped cover member 2 and the lower support member 3.
更に、本考案では、吸気マニホールド１と下部受は部材
３との間、パイプ状の中間ピース４と下部受は部材３と
の間、パイプ状の中間ピース４と傘形カバ一部材２との
間、下部受は部材３と金網６．６′との間及び金網６，
６′と傘形カバ一部材２との間に、防振材として防振ゴ
ム８をそれぞれ介在せしめ、機関振動をそれら防振ゴム
８により吸収せしめている。Further, in the present invention, there is a gap between the intake manifold 1 and the lower support member 3, between the pipe-shaped intermediate piece 4 and the lower support member 3, and between the pipe-shaped intermediate piece 4 and the umbrella-shaped cover member 2. Between, the lower support is between the member 3 and the wire mesh 6, 6' and the wire mesh 6,
6' and the umbrella-shaped cover member 2, vibration isolating rubbers 8 are interposed as vibration isolating materials, and engine vibrations are absorbed by the vibration isolating rubbers 8.
なお、防振材としては、上記実施例に示す防振ゴム８以
外のものでも、防振効果を有するものであれば、どんな
防振材を使用しても有効であり、また吸音材７の材質に
ついても特に限定するものではない。It should be noted that any vibration-proofing material other than the vibration-proofing rubber 8 shown in the above embodiment can be used as long as it has a vibration-proofing effect. The material is not particularly limited either.
本考案によれば、吸気消音器の傘形カバ一部材の吸気マ
ニホールドへの取付部に防振材を介在させているので、
防振材により機関振動を吸収しえて、吸気消音器の耐久
性を増大させることができる。According to the present invention, since the vibration isolating material is interposed at the attachment part of the umbrella-shaped cover member of the intake silencer to the intake manifold,
The vibration isolating material can absorb engine vibrations and increase the durability of the intake silencer.
また、傘形カバ一部材と吸気マニホールドとの間に、そ
の内部に吸音材を挟装した二重構造の多孔部材を介装さ
せているので、吸気通路に内装された吸音材により吸気
騒音を低減させることができ、更に二重構造の多孔部材
により、傘形カバ一部材と下部受は部材との間の間隔を
保持させることもできるので、間隔保持のための部品の
省略が可能で、部品点数を低減させることができる。In addition, a double-structure porous member with sound-absorbing material sandwiched inside is interposed between the umbrella-shaped cover member and the intake manifold, so the sound-absorbing material installed inside the intake passage reduces intake noise. In addition, the double-structured porous member allows the distance between the umbrella-shaped cover member and the lower support member to be maintained, making it possible to omit parts for maintaining the distance. The number of parts can be reduced.
また、傘形カバ一部材の下端部を多孔部材を覆う位置ま
で延伸して形成しているので、吸気音の発散を傘形カバ
一部材で覆って吸気騒音を一層低減させることができ、
また傘形カバ一部材から滴下する水が機関内に吸入され
ないので、舶用内燃機関の場合でも、その機関の耐久性
を欠くおそれがない。In addition, since the lower end of the umbrella-shaped cover member is formed to extend to a position that covers the porous member, the emission of intake noise can be covered by the umbrella-shaped cover member and intake noise can be further reduced.
Further, since water dripping from the umbrella-shaped cover member is not sucked into the engine, there is no risk of deteriorating the durability of the engine even in the case of a marine internal combustion engine.
従って本考案によれば、機関振動を吸収し、かつ吸気騒
音の低減効果の太きい、耐久性に優れた吸気消音器を提
供することができる。Therefore, according to the present invention, it is possible to provide an intake silencer that absorbs engine vibrations, has a large intake noise reduction effect, and has excellent durability.
なお、本考案は主として内燃機関の吸気マニホールドに
取付けられる吸気消音器に対して有効である。The present invention is mainly effective for intake silencers attached to intake manifolds of internal combustion engines.
図面は本考案の実施例における内燃機関の吸気マニホー
ルドに取付けた吸気消音器の一部断面の側面図である。
１・・・・・・吸気マニホールド、２・・・・・・傘形
カバ一部材、５・・・・・・取付ボルト、６，６′・・
・・・・金網、１・・・・・・吸音材、８・・・・・・
防振ゴム。The drawing is a partially sectional side view of an intake silencer attached to an intake manifold of an internal combustion engine according to an embodiment of the present invention. 1...Intake manifold, 2...Umbrella-shaped cover part, 5...Mounting bolt, 6, 6'...
...Wire mesh, 1...Sound absorbing material, 8...
Anti-vibration rubber.
Claims (1)
おいて、該吸気消音器の傘形カバ一部材の吸気マニホー
ルドへの取付部に防振材を介在せしめ、かつ該カバ一部
材と吸気マニホールドとの間に、その内部に吸音材を挟
装せる二重構造の多孔部材な介装せしめると共に、該カ
バ一部材の下端部を少なくとも多孔部材を覆う位置まで
延伸して形成せしめてなる内燃機関の吸気消音器。In an intake silencer fixed to an intake manifold of an internal combustion engine, a vibration isolating material is interposed at the attachment part of an umbrella-shaped cover member of the intake silencer to the intake manifold, and a vibration isolating material is interposed between the cover member and the intake manifold. A double-structured porous member having a sound absorbing material sandwiched therebetween is interposed therebetween, and the lower end of the cover member extends at least to a position covering the porous member. Silencer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14561278U JPS5851405Y2 (en) | 1978-10-23 | 1978-10-23 | Internal combustion engine intake silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14561278U JPS5851405Y2 (en) | 1978-10-23 | 1978-10-23 | Internal combustion engine intake silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5562846U JPS5562846U (en) | 1980-04-28 |
| JPS5851405Y2 true JPS5851405Y2 (en) | 1983-11-22 |
Family
ID=29125335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14561278U Expired JPS5851405Y2 (en) | 1978-10-23 | 1978-10-23 | Internal combustion engine intake silencer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5851405Y2 (en) |
-
1978
- 1978-10-23 JP JP14561278U patent/JPS5851405Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5562846U (en) | 1980-04-28 |
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