JPH049959B2 - - Google Patents
Info
- Publication number
- JPH049959B2 JPH049959B2 JP10318587A JP10318587A JPH049959B2 JP H049959 B2 JPH049959 B2 JP H049959B2 JP 10318587 A JP10318587 A JP 10318587A JP 10318587 A JP10318587 A JP 10318587A JP H049959 B2 JPH049959 B2 JP H049959B2
- Authority
- JP
- Japan
- Prior art keywords
- slit
- bellows
- dust
- discharge valve
- intake
- 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
- 230000008602 contraction Effects 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000000428 dust Substances 0.000 description 21
- 102100025490 Slit homolog 1 protein Human genes 0.000 description 4
- 101710123186 Slit homolog 1 protein Proteins 0.000 description 4
- 230000010349 pulsation Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000007664 blowing 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
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Check Valves (AREA)
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−
150034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ツトを設け、
このスリツトの外周縁から通常閉じたリツプ部を
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
によりリツプ部及びスリツトを開閉し、塵や水分
を外部に排出するものである。
Conventionally, this type of discharge valve was developed in 1972.
As described in Publication No. 150034, 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. has a slit in its diameter direction,
A discharge valve is known which has a structure in which a normally closed lip portion is integrally provided from the outer peripheral edge of this slit. The exhaust valve opens and closes a lip portion and a slit in response to intake pulsations or vibrations of the internal combustion engine, and discharges dust and moisture to the outside.
〔発明が解決しようとする問題点〕
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ツトか
らの吸入空気が増えスリツトの開きが大きくな
り、そのためエアクリーナ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
転域でのスリツ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ツトの幅を挾してい
る。この結果塵の排出は不十分となり、スリツト
の幅より大きな塵は排出できないという問題があ
る。またスリツトの開閉は、もつぱら吸気の振動
のみによつて行われるため、その開閉が不十分に
なり易いという問題もある。[Problems to be solved by the invention] In the exhaust valve having the above structure, in the high speed range of the engine, the amount of intake air increases, so the amount of intake air from the slit increases, and the opening of the slit becomes larger. It becomes necessary to prevent dust, etc. from being blown back into the interior. In order to prevent the slit from opening too much in the high rotation range, the conventional structure limits the width of the slit. As a result, there is a problem in that dust is not sufficiently discharged, and dust larger than the width of the slit cannot be discharged. Furthermore, since the opening and closing of the slit is performed solely by the vibration of the intake air, there is a problem in 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、吸気振動に
よるベローズの伸縮を利用して強制的にスリツト
を大きく開く構成とすることにより、解決され
る。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ツトを設
け、このスリツトの外周縁に、このスリツトに連
通する、弾性材料の一対の舌片状リツプ部を一体
に突設し、前記ベローズ部には前記スリツトの方
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。
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 vibration. That is, the structural features of the present invention adopted to solve the above problems include a connecting part at the proximal end of a cylindrical body made of an elastic material, a spherical shell part at the distal end,
A bellows portion is integrally formed in each of the intermediate body portions, 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 provided 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.
〔作用〕
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ツト
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、スリツ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ツトの両
端部付近のみが軸方向に伸び、それに伴いスリツ
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る。そのため
塵や水分等の排出はより効果的となる。[Operation] 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 portion can extend in the axial direction of the bellows portion in the direction along the slit, but cannot extend in the axial direction at a position perpendicular to the slit direction 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 that the center is 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
になつた時は、ベローズ部は縮もうとするが、リ
ブの存在によりスリツ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。そのためスリツト
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ツプ部
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 inside of the case or the like becomes negative pressure 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 along the slit. Therefore, the slit is pulled toward both ends and is closed. At the same time, the lip 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ツト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によつて流入空気に遠心力が与え
られるようになつている。遠心力の与えられた空
気は矢印のごとくケーシング２の内壁に沿つて旋
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つている。塵
や水分を分離された空気はさらにろ過体８を通過
しここで分離されなかつた不純物がろ過され、ろ
過後の清浄空気はアウトレツト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とろ過
体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、ろ過体８相互間をシー
ルするガスケツト、７は支持部材５をダスト板１
０に固定するためのボルトを締付けるナツトであ
る。 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 An inlet 3 for taking in air is attached to the inlet 2, and a guide plate 13 is provided at the inlet.
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. The dust is collected in a discharge valve 12 attached to a portion of the dust plate 10. 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 clean air is supplied into the engine via an outlet 4. In the figure, 5 is a support member that supports the dust plate 10 and the filter body 8, 6, 9, and 11 are gaskets that seal between the casing 2, the dust plate 10, and the filter body 8, and 7 is the support member 5 that supports the dust plate. 1
This is a nut that tightens the bolt to fix it at 0.
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１２ｂ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
に挾いスリツト１２ｆを設け、このスリツト１２
ｆの外周縁から外方に向けてゴム等の弾性材料で
一体の舌片状のリツプ部１２ｅが一体に突設され
ている。そしてこのリツプ部１２ｅはスリツト１
２ｆに連通し、通常時は閉じられた状態となつて
いる。 Referring to FIGS. 1-4, the discharge valve 12
The overall shape is formed into a cylindrical body made of an elastic material such as rubber, and has a connecting part 12d for attaching to the dust plate 10 at the base end, a spherical shell part 12a at the distal end,
A bellows portion 12b is integrally formed in each intermediate main body portion. A slit 12f is provided in the diametrical direction of the spherical shell portion 12a.
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 the portion f. This lip portion 12e is the slit 1
2f, and is normally closed.
またベローズ部１２ｂの外周には、スリツト１
２ｆの方向に対して直角の位置に、ベローズ部１
２ｂの軸方向に一対のリブ１２ｃ，１２ｃが一体
形成され、このリブ１２ｃによりベローズ部１２
ｂが伸縮できないようにしている。 Furthermore, a slit 1 is provided on the outer periphery of the bellows portion 12b.
At a position perpendicular to the direction of 2f, the bellows part 1
A pair of ribs 12c, 12c are integrally formed in the axial direction of 2b, and the bellows portion 12 is formed by this rib 12c.
b cannot be expanded or contracted.
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.
機関の吸気振動により、ケーシング２（第９
図）内に正圧になると、この内圧により第５図に
示すように、リツプ部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。このため、ベローズ部１２ｂはスリツ
ト１２ｆの方向と同一方向、すなわちスリツト１
２ｆの両端側においては軸方向に伸びるが、スリ
ツト１２ｆの方向に対する直角の側、すなわちス
リツト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。その結果、スリツト１
２ｆ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。 Due to engine intake vibration, casing 2 (9th
When a positive pressure is generated inside the tube (see FIG. 5), this internal pressure pushes the lip portion 12e open and causes the bellows portion 12b to expand in the axial direction, as shown in FIG. Therefore, the bellows portion 12b is formed in the same direction as the slit 12f, that is, the slit 1
It extends in the axial direction on both ends of the slit 2f, but on the side perpendicular to the direction of the slit 12f, that is, on the side of the central part of the slit 12f, there is a rib 12c that prevents expansion and contraction, so it cannot extend in the axial direction. Can not. As a result, slit 1
2f 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, compared to the conventional structure, which uses only intake negative pressure.
The emission effect will be greatly improved.
一方、吸気振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、スリツト１２ｆの両端側のベ
ローズ部１２ｂは軸方向に収隙するが、スリツト
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、スリツト
１２ｆにはその両端部に向う引張り力が作用し、
スリツト１２ｆは第８図に示すように閉じられ
る。またリツプ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内が負圧になつても、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 vibration, the bellows portion 12b tends to contract due to this negative pressure. At this time, the bellows portions 12b at both ends of the slit 12f contract in the axial direction, but cannot contract at the central portion 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,
The slit 12f is closed as shown in FIG. Furthermore, the lip 12e is also closed due to the negative pressure, and its tongues are brought into close contact with each other to form a seal. Therefore, even if the inside of the casing 2 becomes negative pressure, 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、スリツトを大きく開きまたこれを完全に密閉
し、塵、水分等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 way, according to the present embodiment, by operating the intake pulsation in conjunction with the expansion and contraction action of the bellows, the slit is opened wide and completely sealed, thereby discharging dust, moisture, etc. and preventing the blowing back of the slit. ,
It will be done effectively.
本発明は以上のように、吸気振動とベローズの
伸縮作用とを関連動作させかつこのベローズの伸
縮作用をスリツトの方向によつて規制するように
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、スリツトの開口が
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、スリツ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 vibration 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. Compared to those operated by a chisel, the slit opening is larger and large dust can be easily discharged. Furthermore, although the opening at the time of discharge is made large, it can be sufficiently sealed when the slit is closed, so that dust and moisture can be easily prevented 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−線に
沿う断面図、第４図は第２図の−線に沿う断
面図、第５図、第６図は同上実施例のリツプ開口
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
施例のスリツ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……リツプ部。
FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a bottom view of the same embodiment, FIG. 3 is a sectional view taken along the - line in FIG. 2, and FIG. 5 and 6 are explanatory diagrams showing the same embodiment when the lip is opened, and FIG. 5 is a longitudinal sectional view thereof, and FIG.
The figure shows a bottom view, FIGS. 7 and 8 are explanatory views showing the same embodiment when the slit is closed, FIG. 7 is a longitudinal sectional view thereof, FIG. 8 is a bottom view thereof, and FIG.
The figure is a longitudinal sectional view of the entire air cleaner to which the above embodiment is attached, and FIG. 10 is a plan view of the same. 12...Discharge valve, 12a...Spherical shell part, 12b...
...Bellows portion, 12c...Rib, 12d...Connection portion, 12e...Rip portion.
Claims (1)
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
直径方向にスリツトを設け、このスリツトの外周
縁に、このスリツトに連通する弾性材料の一対の
舌片状リツプ部を一体に突設し、前記ベローズ部
には前記スリツ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 formed at the intermediate main body part, and the spherical shell part has a slit in its diameter direction. A pair of tongue-shaped lip portions of an elastic material communicating with the slit are integrally provided on the outer peripheral edge of the slit, and the bellows portion is provided with the bellows at a position perpendicular to the direction of the slit. A discharge valve characterized by having a rib that prevents expansion and contraction of the part.
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 JPS63270980A (en) | 1988-11-08 |
| JPH049959B2 true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2785308B2 (en) * | 1989-03-27 | 1998-08-13 | 株式会社デンソー | Discharge 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 |
| US10465809B2 (en) * | 2013-02-22 | 2019-11-05 | 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
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63270980A (en) | 1988-11-08 |
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