JPS63270980A - Exhaust valve - Google Patents
Exhaust valveInfo
- Publication number
- JPS63270980A JPS63270980A JP10318587A JP10318587A JPS63270980A JP S63270980 A JPS63270980 A JP S63270980A JP 10318587 A JP10318587 A JP 10318587A JP 10318587 A JP10318587 A JP 10318587A JP S63270980 A JPS63270980 A JP S63270980A
- Authority
- JP
- Japan
- Prior art keywords
- slit
- bellows
- dust
- spherical shell
- shell part
- 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.)
- Granted
Links
- 239000013013 elastic material Substances 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 230000008602 contraction Effects 0.000 claims description 7
- 239000000428 dust Substances 0.000 abstract description 24
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000010349 pulsation Effects 0.000 description 9
- 238000007664 blowing Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Check Valves (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、内燃機関の吸気系、例えばエアクリーナの内
部に設置して、塵や水分等を外部へ排出するために用い
る排出弁に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a discharge valve that is installed in the intake system of an internal combustion engine, such as an air cleaner, and is used to discharge dust, moisture, etc. to the outside. be.
従来この種の排出弁としては、実開昭５４−１５００３
４号公報に記載されているように、ゴム状弾性体からな
る筒状本体の基端にケースへの接続部を、また先端部に
は球殻部をそれぞれ一体に形成し、球殻部にはその直径
方向にスリットを設け、このスリットの外周縁から通常
開じたリップ部を一体に突設した構造の排出弁が知られ
ている。そしてこの排出弁は、内燃機関の吸気脈動又は
振動によりリップ部及びスリットを開閉し、塵や水分を
外部に排出するものである。Conventionally, this type of discharge valve was manufactured by Utility Model Opening Act 54-15003.
As described in Publication No. 4, a connection part to the case is integrally formed at the base end of a cylindrical body made of a rubber-like elastic body, and a spherical shell part is integrally formed at the distal end. A discharge valve is known which has a structure in which a slit is provided in the diametrical direction and a normally open lip portion is integrally provided from the outer peripheral edge of the slit. The exhaust valve opens and closes a lip portion and a slit according to intake pulsation or vibration of the internal combustion engine, and discharges dust and moisture to the outside.
上記のような構造の排出弁において、機関の高回転域で
は吸入空気量が多くなるためスリットからの吸入空気が
増えスリットの開きが大きくなり、そのためエアクリ°
−す等の内部に塵等を吹き返すのを防止する必要が生じ
る。このように高回転域でのスリットの開き過ぎを生じ
ないようにするため、従来の構造ではスリットの幅を狭
くしている。In the exhaust valve with the above structure, the amount of intake air increases in the high engine speed range, so the amount of intake air from the slit increases, and the slit opening becomes larger.
- It becomes necessary to prevent dust from blowing back into the interior of the equipment. In order to prevent the slit from opening too much in the high rotation range, the width of the slit is narrowed in the conventional structure.
この結果塵の排出は不十分となり、スリットの幅より大
きな塵は排出できないという問題がある。As a result, there is a problem in that the dust is not sufficiently discharged, and dust larger than the width of the slit cannot be discharged.
またスリットの開閉は、もっばら吸気の脈動のみによっ
て行われるため、その開閉が不十分になり易いという問
題もある。Furthermore, since the opening and closing of the slit is performed solely by the pulsation of the intake air, there is also the problem that the opening and closing of the slit tends to be insufficient.
本発明によれば、上記の問題点は、吸気脈動によるベロ
ーズの伸縮を利用して強制的にスリットを大きく開く構
成とすることにより、解決される。According to the present invention, the above problems are solved by forcibly opening the slit widely by utilizing the expansion and contraction of the bellows due to intake pulsation.
すなわち上記の問題点を解決するために採用した本発明
の構成上の特徴は、弾性材料からなる筒状体の基端部に
接続部を、先端部に球殻部を、中間の本体部にベローズ
部を、それぞれ一体形成し、前記球殻部にはその直径方
向にスリットを設け、このスリットの外周縁に、このス
リットに連通ずる、弾性材料の一対の舌片状リップ部を
一体に突設し、前記ベローズ部には前記スリットの方向
に対して直角の位置に前記ベローズの伸縮を阻止するリ
ブを設けた点にある。In other words, the structural features of the present invention adopted to solve the above-mentioned problems are that a connecting part is provided at the base end of a cylindrical body made of an elastic material, a spherical shell part is provided at the distal end, and a spherical shell part is provided at the intermediate body part. The bellows portions are each integrally formed, a slit is provided in the diametrical direction of the spherical shell portion, and a pair of tongue-shaped lips of an elastic material are integrally protruded on the outer peripheral edge of the slit and communicate with the slit. The bellows portion is provided with a rib at a position perpendicular to the direction of the slit to prevent expansion and contraction of the bellows.
上記の構成よりなる本発明において、機関の吸気脈動に
より、この排出弁を取付けたケース等の内部が正圧にな
ると、その内圧によりベローズ部が伸びようとする。こ
の時ベローズ部はスリットに沿う方向においてはベロー
ズ部の軸方向に伸びることはできるが、スリットの方向
と直角の位置においてはリブの存在により軸方向に伸び
ることができない。その結果ベローズ部はスリットの両
端部付近のみが軸方向に伸び、それに伴いスリットはそ
の両端から中央部に向けて押される状態となるのでその
中央部は大きく開かれろ。そのため塵や水分等の排出は
より効果的となる。In the present invention having the above configuration, when the internal pressure of the case or the like to which the discharge valve is attached becomes positive due to intake pulsation of the engine, the bellows portion tends to expand due to the internal pressure. At this time, the bellows part can extend in the axial direction of the bellows part in the direction along the slit, but cannot extend in the axial direction at a position perpendicular to the direction of the slit due to the presence of the rib. As a result, the bellows portion extends in the axial direction only near both ends of the slit, and as a result, the slit is pushed from both ends toward the center, so the center is left wide open. Therefore, the discharge of dust, moisture, etc. becomes more effective.
また逆に吸気脈動によりケース等の内部が負圧になった
時は、ベローズ部は縮もうとするが、リブの存在により
スリットに沿う方向においてしか軸方向に縮むことがで
きない。そのためスリットはその両端側に向けて引張ら
れる状態となり、閉じられることになる。またこれと同
時にリップ部は完全に密閉状態となる。このようにして
塵や水分が逆にケース等の内部に吹き返されるのを防止
する。Conversely, when the internal pressure of the case or the like becomes negative due to intake pulsation, the bellows portion attempts to contract, but due to the presence of the ribs, it can only contract in the axial direction in the direction along the slit. Therefore, the slit is pulled toward both ends and is closed. At the same time, the lip portion becomes completely sealed. In this way, dust and moisture are prevented from being blown back into the case or the like.
本発明の実施例について図面を参照して以下に説明する
。Embodiments of the present invention will be described below with reference to the drawings.
第９図、第１０図は本発明の排出弁を設置した内燃機関
の吸気系におけるエアクリーナを示すもので、エアクリ
ーナ１は遠心分離機としての機能とろ過機としての機能
とを有し、そのケーシング２には空気を取入れるための
インレット３が取付けられその入口部分には案内板１３
が設けられ、この案内板１３によって流入空気に遠心力
が与えられるようになっている。遠心力の与えられた空
気は矢印のごとくケーシング２の内壁に沿って旋回しな
がら順次下降して行きその間に空気中の塵、水分等の夾
雑物が分離され、ケーシング２の底部。9 and 10 show an air cleaner in the intake system of an internal combustion engine in which the discharge valve of the present invention is installed. The air cleaner 1 has a function as a centrifuge and a filter, and its casing 2 is equipped with an inlet 3 for taking in air, and a guide plate 13 is attached to the inlet part.
is provided, and this guide plate 13 applies centrifugal force to the incoming air. The air subjected to centrifugal force descends one by one while rotating along the inner wall of the casing 2 as shown by the arrow, and during this time impurities such as dust and moisture in the air are separated, and the air flows to the bottom of the casing 2.
に設けられたダスト板１０の一部に取付けた排出弁１２
中に収積されるようになっている。塵や水分を分離され
た空気はさらにろ週休８を通過しここで分離されなかっ
た不純物がろ過され、ろ過酸の清浄空気はアウトレット
４を経て機関内部に供給される。なお図中５はダスト板
１０とろ週休８とを支持する支持部材、６．９．１１は
ケーシング２、ダスト板１０、ろ週休８相互間をシール
するガスケット、７は支持部材５をダスト板１０に固定
するためのボルトを締付けるナツトである。A discharge valve 12 attached to a part of the dust plate 10 provided in the
It is designed to be collected inside. The air from which dust and moisture have been separated further passes through a filter 8, where unseparated impurities are filtered out, and the filtered acid-clean air is supplied to the inside of the engine via an outlet 4. In the figure, 5 is a support member that supports the dust plate 10 and the dust plate 10, 6.9.11 is a gasket that seals between the casing 2, the dust plate 10, and the dust plate 8, and 7 is a support member that supports the dust plate 10 and the dust plate 10. This is a nut that tightens the bolt to fix it.
次に、上記のようにしてその内部に収積された塵や水分
等を排出する排出弁１２の構造について説明する。。Next, the structure of the discharge valve 12 for discharging dust, moisture, etc. accumulated therein as described above will be explained. .
第１図ないし第４図を参照すると、排出弁１２はゴム等
の弾性材料により全体形状が筒状体に形成され、その基
端部に前記ダスト板１０へ取付けるための接続部１２ｄ
、先端部に球殻部１２ａ、中間の本体部にベローズ部１
２ｂを、それぞれ一体形成している。球殻部１２ａには
その直径方向に狭いスリット１２ｆを設け、このスリ７
ｌ−１２ｆの外周縁から外方に向けてゴム等の弾性材料
で一体の舌片状のリップ部１２ｅが一体に突設されてい
る。そしてこのリップ部１２ｅはスリット１２ｆに連通
し、通常時は閉じられた状態となっている。Referring to FIGS. 1 to 4, the discharge valve 12 is made of an elastic material such as rubber and has a cylindrical shape, and has a connecting portion 12d at its base end for attachment to the dust plate 10.
, a spherical shell part 12a at the tip, and a bellows part 1 at the middle main body part.
2b are integrally formed. A narrow slit 12f is provided in the diametrical direction of the spherical shell portion 12a, and this slit 7
An integral tongue-shaped lip portion 12e made of an elastic material such as rubber is integrally provided to protrude outward from the outer peripheral edge of l-12f. The lip portion 12e communicates with the slit 12f and is normally closed.
またベローズ部１２ｂの外周には、スリット１２ｆの方
向に対して直角の位置に、ベローズ部１２ｂの軸方向に
一対のリブ１２Ｃ，１２Ｃが一体形成され、このリブ１
２ｃによりベローズ部１２ｂが伸縮できないようにして
いる。Further, a pair of ribs 12C, 12C are integrally formed on the outer periphery of the bellows portion 12b at positions perpendicular to the direction of the slit 12f in the axial direction of the bellows portion 12b.
2c prevents the bellows portion 12b from expanding or contracting.
上記の構成からなる排出弁１２の作動を次に説明する。The operation of the discharge valve 12 having the above structure will be explained next.
機関の吸気脈動により、ケーシング２（第９図）内が正
圧になると、この内圧により第５図に示すように、リッ
プ部１２ｅは押し開かれまたベローズ部１２ｂは広がろ
うとして軸方向に伸びる力が働く。When the internal pressure of the casing 2 (FIG. 9) becomes positive due to the intake pulsation of the engine, the lip portion 12e is pushed open and the bellows portion 12b attempts to expand in the axial direction as shown in FIG. 5 due to this internal pressure. A stretching force works.
このため、ベローズ部１２ｂはスリット１２ｆの方向と
同一方向、すなわちスリット１２ｆの両端側においては
軸方向に伸びるが、スリット１２ｆの方向に対する直角
の側、すなわちスリット１２ｆの中央部分の側において
はこの部分に伸縮を阻止するリブ１２Ｃがあるため、軸
方向に伸びることができない。Therefore, the bellows portion 12b extends in the axial direction in the same direction as the slit 12f, that is, on both end sides of the slit 12f, but on the side perpendicular to the direction of the slit 12f, that is, on the side of the central portion of the slit 12f. Since there is a rib 12C that prevents expansion and contraction, it cannot extend in the axial direction.
その結果、スリット１２ｆにはその両端側から中央部側
に向けて押される作用が生じ、第６図に示すように中央
部が大きく開く。そのため、排出弁１２内部に収積され
ていた塵や水は効果的に排出され、従来構造のように吸
気負圧のみにより行われていたものに比べ、その排出効
果は大幅に向上する。As a result, the slit 12f is pushed from both ends toward the center, and the center opens wide as shown in FIG. Therefore, the dust and water accumulated inside the discharge valve 12 are effectively discharged, and the discharge effect is greatly improved compared to the conventional structure, which is performed only by intake negative pressure.
一方、吸気脈動によりケーシング２内が負圧になると、
この負圧によりベローズ部１２ｂは縮もうとする。この
時、スリット１２ｆの両端側のベローズ部１２ｂは軸方
向に収縮するが、スリット１２ｆの中央部分の側におい
てはリブ１２Ｃがあるため縮むことができない。その結
果、スリット１２ｆにはその両端部に向う引張り力が作
用し、スリット１２ｆは第８図に示すように閉じられる
。またリップ１２ｅも負圧のために閉じられその舌片は
相互に密着しシール状態となる。このためケーシング２
内が負圧になっても、塵や水が逆にエアクリーナ内に吹
き返されることがなくなる。On the other hand, when the inside of the casing 2 becomes negative pressure due to intake pulsation,
The bellows portion 12b attempts to contract due to this negative pressure. At this time, the bellows portions 12b on both end sides of the slit 12f contract in the axial direction, but cannot contract on the central portion side of the slit 12f because of the presence of the rib 12C. As a result, a tensile force is applied to both ends of the slit 12f, and the slit 12f is closed as shown in FIG. Further, the lip 12e is also closed due to the negative pressure, and the tongues thereof are brought into close contact with each other to form a sealed state. For this reason, casing 2
Even if the inside pressure becomes negative, dust and water will not be blown back into the air cleaner.
このようにして本実施例によれば、吸気脈動とベローズ
の伸縮作用とを関連動作させることにより、スリットを
大きく開きまたこれを完全に密閉し、塵、水分等の排出
とその吹き返しの防止とが、効果的に行われるものとな
る。In this manner, according to the present embodiment, the slit is opened wide and completely sealed by causing the intake pulsation and the expansion/contraction action of the bellows to operate in conjunction with each other, thereby discharging dust, moisture, etc. and preventing them from blowing back. will be carried out effectively.
本発明は以上のように、吸気脈動とベローズの伸縮作用
とを関連動作させかつこのベローズの伸縮作用をスリッ
トの方向によって規制するようにしているので、従来装
置のような、吸気負圧のみにより作動させるものに比べ
、スリットの開口が大きくなり、大きな塵を容易に排出
することができる。また排出時の開口を大きくするもの
でありながら、スリットの閉鎖時にはこれを十分に密閉
することができるので、塵や水分の吹き返しも容易に防
止することができる。As described above, the present invention allows the intake pulsation and the expansion/contraction action of the bellows to operate in a related manner, and the expansion/contraction action of the bellows is regulated by the direction of the slit. The opening of the slit is larger than that of the activated type, making it easier to remove large particles of dust. Furthermore, although the opening is made large during discharge, it can be sufficiently sealed when the slit is closed, making it easy to prevent dust and moisture from blowing back.
第１図は本発明の実施例の正面図、第２図は同上実施例
の下面図、第３図は第２図のｍ−ｍ線に沿う断面図、第
４図は第２図の■−ＩＶ線に沿う断面図、第５図、第６
図は同上実施例のリップ開口時を示す説明図で、第５図
はその縦断面図、第６図はその下面図を示し、第７図、
第８図は同上実施例のスリット閉鎖時を示す説明図で、
第７図はその縦断面図、第８図はその下面図を示し、第
９図は同上実施例を取付けたエアクリーナ全体の縦断面
図、第１０図は同上平面図である。
１２・・・排出弁、 １２ａ・・・球殻部、１２ｂ
・・・ベローズ部、 １２ｃ・・・リブ、１２ｄ・・・
接続部、 １２ｅ・・・リップ部。FIG. 1 is a front view of the embodiment of the present invention, FIG. 2 is a bottom view of the same embodiment, FIG. 3 is a sectional view taken along line m-m in FIG. 2, and FIG. 4 is a - Sectional view along line IV, Figures 5 and 6
The figures are explanatory diagrams showing the same embodiment when the lip is opened; FIG. 5 is a longitudinal sectional view thereof, FIG. 6 is a bottom view thereof, and FIGS.
FIG. 8 is an explanatory diagram showing when the slit is closed in the same embodiment.
FIG. 7 is a longitudinal sectional view thereof, FIG. 8 is a bottom view thereof, FIG. 9 is a longitudinal sectional view of the entire air cleaner to which the above embodiment is attached, and FIG. 10 is a plan view thereof. 12... Discharge valve, 12a... Spherical shell part, 12b
...Bellows part, 12c...Rib, 12d...
Connection part, 12e... lip part.
Claims (1)
部に球殻部を、中間の本体部にベローズ部を、それぞれ
一体形成し、前記球殻部にはその直径方向にスリットを
設け、このスリットの外周縁に、このスリットに連通す
る弾性材料の一対の舌片状リップ部を一体に突設し、前
記ベローズ部には前記スリットの方向に対して直角の位
置に前記ベローズ部の伸縮を阻止するリブを設けたこと
を特徴とする排出弁。1. A connecting part is integrally formed at the base end of a cylindrical body made of an elastic material, a spherical shell part is formed at the distal end, and a bellows part is integrally formed at the intermediate main body part, and the spherical shell part has a cylindrical body formed in the diametrical direction. A slit is provided, and a pair of tongue-like lips of an elastic material is integrally provided on the outer peripheral edge of the slit and communicates with the slit, and the bellows portion has a pair of tongue-shaped lips formed at right angles to the direction of the slit. A discharge valve characterized by having a rib that prevents expansion and contraction of a bellows portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10318587A JPS63270980A (en) | 1987-04-28 | 1987-04-28 | Exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10318587A JPS63270980A (en) | 1987-04-28 | 1987-04-28 | Exhaust valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63270980A true JPS63270980A (en) | 1988-11-08 |
| JPH049959B2 JPH049959B2 (en) | 1992-02-21 |
Family
ID=14347454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10318587A Granted JPS63270980A (en) | 1987-04-28 | 1987-04-28 | Exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63270980A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02253069A (en) * | 1989-03-27 | 1990-10-11 | Nippondenso Co Ltd | Exhaust valve |
| JPH04293719A (en) * | 1991-03-22 | 1992-10-19 | Nippon Steel Corp | Production of high strength steel plate for structural use excellent in toughness at low temperature and having high young's modulus |
| US20180142795A1 (en) * | 2013-02-22 | 2018-05-24 | Nsi International, Inc. | Valve assembly for expandable bladder and method of manufacturing the same |
-
1987
- 1987-04-28 JP JP10318587A patent/JPS63270980A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02253069A (en) * | 1989-03-27 | 1990-10-11 | Nippondenso Co Ltd | Exhaust valve |
| JPH04293719A (en) * | 1991-03-22 | 1992-10-19 | Nippon Steel Corp | Production of high strength steel plate for structural use excellent in toughness at low temperature and having high young's modulus |
| US20180142795A1 (en) * | 2013-02-22 | 2018-05-24 | Nsi International, Inc. | Valve assembly for expandable bladder and method of manufacturing the same |
| US10465809B2 (en) * | 2013-02-22 | 2019-11-05 | Nsi International, Inc. | Valve assembly for expandable bladder and method of manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH049959B2 (en) | 1992-02-21 |
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