JPS5843606Y2 - Engine breather device - Google Patents
Engine breather deviceInfo
- Publication number
- JPS5843606Y2 JPS5843606Y2 JP6358079U JP6358079U JPS5843606Y2 JP S5843606 Y2 JPS5843606 Y2 JP S5843606Y2 JP 6358079 U JP6358079 U JP 6358079U JP 6358079 U JP6358079 U JP 6358079U JP S5843606 Y2 JPS5843606 Y2 JP S5843606Y2
- Authority
- JP
- Japan
- Prior art keywords
- breather
- valve
- plate
- chamber
- open channel
- 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
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
この考案は、エンジンに装着されるリード弁タイプのブ
リーザ装置に関する。[Detailed Description of the Invention] This invention relates to a reed valve type breather device installed in an engine.
周知のようにリード弁タイプのブリーザ装置は、ブリー
ザ板とこれに固定されるリード弁と開渠規制板とを有し
、この外側に固定されるブリーザカバーを外側に膨出さ
せてその内側にブリーザ弁室が形成されるが、こうする
とつぎのような欠点があった。As is well known, a reed valve type breather device has a breather plate, a reed valve fixed to the plate, and an open channel control plate, and a breather cover fixed to the outside is bulged outward and inside the breather plate. Although a breather valve chamber is formed, this has the following disadvantages.
すなわち、第5図に示すように、ブリーザカバー31に
取付けられるブリーザ管32の端部が開渠規制板33に
当たって塞がれ、ブリーザ作用できなくなる。That is, as shown in FIG. 5, the end of the breather pipe 32 attached to the breather cover 31 hits the open channel regulating plate 33 and is blocked, making it impossible to operate as a breather.
これを防止するために、第6図に示すように開渠規制板
33をブリーザ管32の端部に当たらないように小さく
することが考えられるが、今度はリード弁34が開弁じ
たときにブリーザ管32を塞いでし1い、問題を解決で
きない。In order to prevent this, it is possible to make the open channel restriction plate 33 smaller so that it does not hit the end of the breather pipe 32, as shown in Fig. 6, but this time, when the reed valve 34 is opened, Closing the breather pipe 32 will not solve the problem.
したがって、ブリーザカバー31を奥行きのある大きな
ものとしなければならず不経済であった。Therefore, the breather cover 31 had to be large and deep, which was uneconomical.
この考案は上記の欠点を解消するもので、開渠規制板お
よびリード弁でブリーザ管が塞がれることがないように
、開渠規制板のブリーザ管に臨む部分にブーバイガスの
通過可能な切欠きを形成した。This idea solves the above-mentioned drawbacks.In order to prevent the breather pipe from being blocked by the open channel regulation plate and reed valve, a notch is provided in the part of the open channel regulation plate facing the breather pipe through which booby gas can pass. was formed.
ことに最大の特徴を有する。It has the greatest feature.
以下この考案の実施例を図面に基き説明する。Examples of this invention will be described below with reference to the drawings.
第1図は空冷縦型側弁エンジンの要部縦断側面図、第2
図は第1図■部の抜犬図である。Figure 1 is a longitudinal sectional side view of the main parts of an air-cooled vertical side valve engine, Figure 2
The figure is an extracted view of part ■ in Figure 1.
図において、エンジンの燃焼室1からクランク室2内に
漏洩したブローバイガスは、導出孔3・タペット室兼ブ
リーザ室4・ブリーザ装置5・ブリーザ弁室6及びブリ
ーザ管7を経て、エアクリーナ8の浄気室に吸込寸れる
。In the figure, blow-by gas leaking from the combustion chamber 1 of the engine into the crank chamber 2 passes through the outlet hole 3, the tappet chamber/breather chamber 4, the breather device 5, the breather valve chamber 6, and the breather pipe 7, and then passes through the air cleaner 8. The air is sucked into the air chamber.
ブリーザ室4はクランクケース9の前側壁の上部に凹設
され、ブリーザ室4の外面開口部の周囲に嵌合壁10が
クランクケース9から一体に突設されている。The breather chamber 4 is recessed in the upper part of the front wall of the crankcase 9, and a fitting wall 10 is integrally provided around the outer opening of the breather chamber 4 and projects from the crankcase 9.
符号11はブリーザカバーで、ブリーザ室4の嵌合壁1
0に外嵌する段部12を有しており、クランクケース9
にボルト13で固定されている。Reference numeral 11 is a breather cover, which is attached to the fitting wall 1 of the breather chamber 4.
The crankcase 9 has a stepped portion 12 that fits externally into the crankcase 9.
is fixed with bolt 13.
このカバー11の前壁にはブリーザ管7の取付管14が
突出しており、ここにゴム製のブリーザ管7が内嵌され
ている。A mounting pipe 14 for the breather pipe 7 projects from the front wall of the cover 11, and the breather pipe 7 made of rubber is fitted therein.
ブリーザ装置5はブリーザ板(ブリーザ弁室6の奥壁)
15に明けられた入口孔16と、この人口孔16を開閉
するリード弁17と、この弁17の外側に位置してこの
弁17の最大開渠を規制する開渠規制板18とから成る
。The breather device 5 is a breather plate (back wall of the breather valve chamber 6)
15, a reed valve 17 for opening and closing the artificial hole 16, and an open channel regulating plate 18 located outside the valve 17 for regulating the maximum opening of the valve 17.
弁17と規制板18とは、ブリーザ板15の裏面のディ
フレクタ19とともにリベット20によりプリーザ板1
5に固定されている。The valve 17 and the regulating plate 18 are connected to the pleather plate 1 by rivets 20 together with a deflector 19 on the back side of the breather plate 15.
It is fixed at 5.
この規制板18の前面にちょうど前記ブリーザ管7の入
口が位置しており、規制板18の先端部は、左右両側を
切欠き、この切欠き21を形成することで、第3図に示
すようにブリーザ管7の内径よりも細く形成され、ブリ
ーザ管7の入口が、規制板18およびリード弁17で塞
がれてし1わないようになっている。The inlet of the breather pipe 7 is located exactly on the front surface of the regulating plate 18, and the tip of the regulating plate 18 is cut out on both the left and right sides, and by forming the notches 21, as shown in FIG. The inner diameter of the breather pipe 7 is smaller than that of the breather pipe 7 to prevent the inlet of the breather pipe 7 from being blocked by the regulating plate 18 and the reed valve 17.
第4図はこの考案の別実施例を示し、開渠規制板18の
先端の中央部に切欠き21を設け、常時ブリーザ弁室6
からブリーザ管7を通ってブローバイガスがコアクリー
ナ8へ流れるようにしたものである。FIG. 4 shows another embodiment of this invention, in which a notch 21 is provided in the center of the tip of the open channel regulating plate 18, and the breather valve chamber 6 is constantly closed.
The blow-by gas is made to flow from the core cleaner 8 through the breather pipe 7.
この考案は上記のように構成したからつぎの効果を奏す
る。Since this invention is configured as described above, it has the following effects.
すなわち、ブリーザ弁室内で開渠規制板のブリーザ管に
臨む部分に切欠きを設けたから、開渠規制板およびリー
ド弁でブリーザ管の入口が塞がれることはないので、ブ
ローバイガスをクランクケース外に正常に排出させるこ
とができる。In other words, since a notch is provided in the part of the open-drain regulation plate facing the breather pipe in the breather valve chamber, the inlet of the breather pipe is not blocked by the open-drain regulation plate and the reed valve, allowing blow-by gas to be routed outside the crankcase. can be discharged normally.
また、従来例のようにはブリーザカバーを大きくする必
要はなく、ブリーザカバーを小さくできるから、経済的
である。Further, unlike the conventional example, there is no need to make the breather cover large, and the breather cover can be made small, which is economical.
図面はこの考案の実施例を示し、第1図は空冷縦型側弁
エンジンの要部縦断側面図、第2図は第1図■部拡大図
、第3図は第2図■−■線断面図、第4図は別実施例を
示す第3図相当図、第5図むよび第6図はそれぞれ従来
例を示す第2図相当図である。
6・・・ブリーザ弁室、7・・・ブリーザ管、15・・
・6の奥壁(ブリーザ板)、16・・・入口孔、17・
・・リード弁、18・・・開渠規制板、21・・・切欠
き。The drawings show an embodiment of this invention; Fig. 1 is a longitudinal cross-sectional side view of the main parts of an air-cooled vertical side valve engine, Fig. 2 is an enlarged view of the section ■ in Fig. 1, and Fig. 3 is an enlarged view of the section ■-■ in Fig. 2. The cross-sectional view, FIG. 4 is a view corresponding to FIG. 3 showing another embodiment, and FIGS. 5 through 6 are views corresponding to FIG. 2 showing a conventional example. 6... Breather valve chamber, 7... Breather pipe, 15...
・Back wall of 6 (breather board), 16... entrance hole, 17.
... Reed valve, 18 ... Open channel regulation plate, 21 ... Notch.
Claims (1)
口孔16を開閉するリード弁17とこの弁17の最大開
渠を規制する開渠規制板18とを奥壁15に固定し、ブ
リーザ弁室6からのブリーザ管7を前記規制板18の手
前に臨捷せ、規制板18のブリーザ管7に臨む部分にブ
ローバイガスの通過可能な切欠き21を形成したことを
特徴とするエンジンのブリーザ装置。An inlet hole 16 is formed in the back wall 15 of the breather valve chamber 6, and a reed valve 17 for opening and closing this artificial hole 16 and an open channel regulation plate 18 for regulating the maximum open channel of this valve 17 are fixed to the inner wall 15. An engine characterized in that a breather pipe 7 from a breather valve chamber 6 is arranged in front of the regulation plate 18, and a notch 21 through which blow-by gas can pass is formed in a portion of the regulation plate 18 facing the breather pipe 7. breather device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6358079U JPS5843606Y2 (en) | 1979-05-11 | 1979-05-11 | Engine breather device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6358079U JPS5843606Y2 (en) | 1979-05-11 | 1979-05-11 | Engine breather device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55163420U JPS55163420U (en) | 1980-11-25 |
JPS5843606Y2 true JPS5843606Y2 (en) | 1983-10-03 |
Family
ID=29297619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6358079U Expired JPS5843606Y2 (en) | 1979-05-11 | 1979-05-11 | Engine breather device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5843606Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2515501Y2 (en) * | 1990-02-02 | 1996-10-30 | 株式会社クボタ | Engine crankcase blazer device |
-
1979
- 1979-05-11 JP JP6358079U patent/JPS5843606Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS55163420U (en) | 1980-11-25 |
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