JPS585043Y2 - Engine breather device - Google Patents
Engine breather deviceInfo
- Publication number
- JPS585043Y2 JPS585043Y2 JP1979011528U JP1152879U JPS585043Y2 JP S585043 Y2 JPS585043 Y2 JP S585043Y2 JP 1979011528 U JP1979011528 U JP 1979011528U JP 1152879 U JP1152879 U JP 1152879U JP S585043 Y2 JPS585043 Y2 JP S585043Y2
- Authority
- JP
- Japan
- Prior art keywords
- breather
- recess
- chamber
- camshaft
- hole
- 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
Description
【考案の詳細な説明】
本考案は、側弁式のエンジンに釦いて、クランクケース
内のブリーザガスを該ケース内のカム軸に形成した通気
孔とこれに連るブリーザ通路とを介して外部のブリーザ
室に導く式のブリーザ装置に関する。[Detailed description of the invention] This invention is a side-valve type engine, and the breather gas in the crankcase is passed through the vent hole formed on the camshaft in the case and the breather passage connected to the vent hole to the outside. This invention relates to a breather device that leads to a breather chamber.
従来この種装置においては、例えば第１図乃至第３図に
示す如くシリンダバレルａのタペット室すに外側のカバ
Ｃを有する枠筐ｄを嵌着してその内部をブリーザ室ｅに
構成し、これにクランクケースｆ内のカム軸ｇに形成し
た通気孔りを上方にのびる管路部材１から成るブリーザ
通路ｊを介して接続せしめる式を一般とするが、このも
のでは枠筐ｄや管路部材ｉを用いる関係で部品点数が増
しその組立が面倒である不都合を伴う。Conventionally, in this type of device, as shown in FIGS. 1 to 3, for example, a frame casing d having an outer cover C is fitted into the tappet chamber of a cylinder barrel a, and the inside thereof is configured as a breather chamber e. Generally, a ventilation hole formed in the camshaft g in the crankcase f is connected to this via a breather passage j made of a conduit member 1 extending upward. The use of member i increases the number of parts and makes assembly difficult.
本考案は、かかる不都合を無くした装置を提供すること
をその目的とするもので、クランクケース１内のブリー
ザガスを、該ケース１内のカム軸２に形成した通気孔３
と該通気孔３に連るブリーザ通路４とを介して外部のブ
リーザ室５に導くようにした側弁式エンジンのブリーザ
装置において、前記クランクケース１に、シリンダバレ
ル１２のタペット室１３の下側に位置して、前記カム軸
２側に窪１せた凹窪６を、形成し、該凹窪６と、前記ク
ランクケース１内の′カム軸用の軸受孔７とを結ぶ透孔
を介して前記ブリーザ通路４を形成させると共に該凹窪
６を、その外側に施されるカバ８を介して前記ブリーザ
室５に形成させたことを特徴とする。The purpose of the present invention is to provide a device that eliminates such inconveniences.The purpose of the present invention is to provide a device that eliminates such inconvenience.
In the breather device for a side valve type engine, the breather is led to an external breather chamber 5 through a breather passage 4 connected to the vent hole 3. A recess 6 is formed on the camshaft 2 side, and a through hole connects the recess 6 to a bearing hole 7 for the camshaft in the crankcase 1. The device is characterized in that the breather passage 4 is formed through the recess 6, and the recess 6 is formed in the breather chamber 5 via a cover 8 provided on the outside thereof.
、、 、第４図及び第５り示のものはカム軸２
上のカム９にタペット１０を、食し、て連動する吸排気
系の弁１１をシリンダバレル１、・２＜、備えた側弁式
エンジンに本考案を適用したもので、該シリンダバレル
１２に形成するタペット室１３の下側のクランク１
ソ １１
ケース１に透孔たるブリ、−ザ”通路４と共に凹窪６を
一体に型抜き成遍口、□その外側にタペット室１３に亘
るカバ８をセパレータ１４を介してねじ止めし、セパレ
ータ１４とカバ８との間に凹窪６内のブリーザ室５にセ
パレータ１４の連通孔１４ａを介して連る副ブリーザ室
１５を形成した。, , The one shown in Figures 4 and 5 is the camshaft 2.
The present invention is applied to a side valve type engine equipped with a cylinder barrel 1, 2<, which has a tappet 10 interlocked with the upper cam 9, and an interlocking intake/exhaust system valve 11. Crank 1 on the lower side of the tappet chamber 13
11 The case 1 has a through hole, and the recess 6 is integrally molded with the passage 4, and a cover 8 extending over the tappet chamber 13 is screwed to the outside thereof via the separator 14, and the separator A sub-breather chamber 15 is formed between the breather chamber 14 and the cover 8, which communicates with the breather chamber 5 in the recess 6 via the communication hole 14a of the separator 14.
カム軸２には、軸受孔７への挿入部周面に通気孔３の流
出口３ａを形成し、これと軸受孔Ｉとによりピストン１
６の往復動に同期して開閉される弁を構成させ、その開
弁によればクランクケース１内のオイルミストを含むブ
リーザガスが通気孔３とブリーザ通路４とを介してブリ
ーザ室５に送り込筐れ、該ブリーザ室５と次いで副ブリ
ーザ室１５とにおいてオイルミストが分離されて、清浄
な空気７５唱ＩＪブリーザ室１５に連るブリーザチュー
ブ１７を介してエアクリーナ１８に送られ、一方分離さ
れたオイルはセパレータ１４と凹窪６とに形成したドレ
ン孔１４ｂ、６ａを介してクランクケース１内に戻され
るようにした。The camshaft 2 has an outlet 3a for the ventilation hole 3 formed on the circumferential surface of the part inserted into the bearing hole 7, and this and the bearing hole I form an outlet 3a for the piston 1.
When the valve is opened, breather gas containing oil mist in the crankcase 1 is sent into the breather chamber 5 through the vent hole 3 and the breather passage 4. The oil mist is separated in the breather chamber 5 and then in the sub-breather chamber 15, and the clean air is sent to the air cleaner 18 via the breather tube 17 leading to the IJ breather chamber 15, where it is separated. The oil is returned into the crankcase 1 through drain holes 14b and 6a formed in the separator 14 and the recess 6.
このように本考案によるときは側弁式エンジンのクラン
クケース１には、そのシリンダバレル１２のタペット室
１３の下側に位置してカム軸２側に窪１せた凹窪６を形
成し、該凹窪６とカム軸２用の軸受孔７とを結ぶ透孔を
介してブリーザ通路４を形成させたものであるから該通
路４は短かく形成することができると共に、単純な直線
形状のものとして凹窪６と一体に型抜き成形することが
できてその加工を著しく容易にし、而も凹窪６はこれに
カバ８を施すことによりブリーザ室５を形成させたもの
であるからその組立が容易となる等の効果を有する。According to the present invention, the crankcase 1 of the side valve type engine is provided with a recess 6 located below the tappet chamber 13 of the cylinder barrel 12 and recessed toward the camshaft 2 side. Since the breather passage 4 is formed through the through hole connecting the recess 6 and the bearing hole 7 for the camshaft 2, the passage 4 can be formed short and can be formed in a simple linear shape. As a product, it can be molded integrally with the recess 6, which greatly facilitates its processing, and since the recess 6 is formed with a cover 8 to form the breather chamber 5, its assembly is easy. This has the effect of making it easier.
第１図は従来式装置の裁断側面図、第２図はその要部の
裁断平面図、第３図は第２図のＩ−Ｉ線数断側面図、第
４図は本考案装置の１例の裁断側面図、第５図は第４図
の■−Ｖ線截断平面図である。
１・・・・・・クランクケース、２・・・・・・カム軸
、３・・・・・・通気孔、４・・・・・・ブリーザ通路
、５・・・・・・ブリーザ室、６・・・・・・凹窪、７
・・・・・・軸受孔、８・・・・・・カバ。Fig. 1 is a cutaway side view of the conventional device, Fig. 2 is a cutaway plan view of its main parts, Fig. 3 is a cross-sectional side view taken along the I-I line in Fig. 2, and Fig. 4 is a cross-sectional side view of the device of the present invention. FIG. 5 is a cutaway side view of the example, and FIG. 5 is a plan view taken along the line -V in FIG. 4. 1... Crankcase, 2... Camshaft, 3... Ventilation hole, 4... Breather passage, 5... Breather chamber, 6...concavity, 7
...Bearing hole, 8...Cover.
Claims (1)
カム軸２に形成した通気孔３と該通気孔３に連るブリー
ザ通路４とを介して外部のブＩＪ−ザ室５に導くように
した側弁不実ンジとのブリーザ装置において、前記タラ
シクｊ−ス１に、シリンダバレル１２のタペット室１３
の下側に位置して、前記カム軸２側に窪１せた凹窪６′
を形成し、該凹窪６と、前記クランクケース１つのタム
□軸用の軸受孔７とを結ぶ透孔を介パして前記ブリーザ
通路４を形成させると共に該凹窪６を、その外側に施さ
れるカバ８を介して前記ブリーザ室５に形成させたこと
を特徴とするエンジンのブリーザ装置。Breather gas in the crankcase 1 is guided to an external blower chamber 5 through a vent hole 3 formed in a camshaft 2 in the case 1 and a breather passage 4 connected to the vent hole 3. In a breather device with a side valve valve, the tappet chamber 13 of the cylinder barrel 12 is installed in the tappet chamber 1 of the cylinder barrel 12.
A recess 6' located on the lower side of the camshaft 2 side
The breather passage 4 is formed through a through hole connecting the recess 6 and the bearing hole 7 for the tom □ shaft of one of the crankcases, and the recess 6 is formed on the outside thereof. A breather device for an engine, characterized in that the breather chamber 5 is formed through a cover 8 provided therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979011528U JPS585043Y2 (en) | 1979-02-02 | 1979-02-02 | Engine breather device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979011528U JPS585043Y2 (en) | 1979-02-02 | 1979-02-02 | Engine breather device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55112012U JPS55112012U (en) | 1980-08-06 |
| JPS585043Y2 true JPS585043Y2 (en) | 1983-01-28 |
Family
ID=28826122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979011528U Expired JPS585043Y2 (en) | 1979-02-02 | 1979-02-02 | Engine breather device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS585043Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS525148B2 (en) * | 1972-05-20 | 1977-02-09 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5314845Y2 (en) * | 1975-06-30 | 1978-04-19 | ||
| JPS5526499Y2 (en) * | 1977-02-26 | 1980-06-25 |
-
1979
- 1979-02-02 JP JP1979011528U patent/JPS585043Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS525148B2 (en) * | 1972-05-20 | 1977-02-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55112012U (en) | 1980-08-06 |
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