JPH0413480Y2 - - Google Patents
Info
- Publication number
- JPH0413480Y2 JPH0413480Y2 JP1986118787U JP11878786U JPH0413480Y2 JP H0413480 Y2 JPH0413480 Y2 JP H0413480Y2 JP 1986118787 U JP1986118787 U JP 1986118787U JP 11878786 U JP11878786 U JP 11878786U JP H0413480 Y2 JPH0413480 Y2 JP H0413480Y2
- Authority
- JP
- Japan
- Prior art keywords
- breather
- air
- partition wall
- passage
- breather plug
- 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
- 238000005192 partition Methods 0.000 claims description 13
- 239000003921 oil Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- General Details Of Gearings (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案はブリーザプラグの開口部より油膜が上
昇するのを防止したエアーブリーザに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an air breather that prevents an oil film from rising from the opening of a breather plug.
従来のエアーブリーザとして、例えば、特開昭
59−13171号公報に示されるものがある。第３図
はこの種のエアーブリーザ１０を示し、車両用ト
ランスミツシヨン、デイフアレンシヤル装置等の
ケーシング１の上部にネジ込み装着されるブリー
ザプラグ１１と、該プラグ１１の上部に冠着され
るキヤツプ１２（開口１２ａを有する）と、ブリ
ーザプラグ１１の上端に載置されて上下するバル
ブ１３と、キヤツプ１２内に配設されてバルブ１
３をブリーザプラグ１１側へ押圧するスプリング
１４とより構成される。尚、４は油の直撃を防ぐ
ボスである。
For example, as a conventional air breather,
There is one shown in Publication No. 59-13171. FIG. 3 shows this type of air breather 10, which includes a breather plug 11 that is screwed into the upper part of a casing 1 of a vehicle transmission, a differential device, etc., and a breather plug 11 that is mounted on the upper part of the plug 11. A cap 12 (having an opening 12a), a valve 13 placed on the upper end of the breather plug 11 and moving up and down, and a valve 13 disposed inside the cap 12 and having an opening 12a.
3 toward the breather plug 11 side. Note that 4 is a boss that prevents direct hits from oil.
以上の構成において、ケーシング１内の気圧が
高くなると、バルブ１３がスプリング１４の付勢
力に抗して上昇し、バルブ１３とブリーザプラグ
１１の上端との間に〓間が生じる。これによつて
ケーシング１の内部と外気とが連通し、ケーシン
グ１内の圧力上昇を防止している。 In the above configuration, when the air pressure inside the casing 1 increases, the valve 13 rises against the biasing force of the spring 14, and a gap is created between the valve 13 and the upper end of the breather plug 11. This allows the inside of the casing 1 to communicate with the outside air, and prevents the pressure inside the casing 1 from increasing.
しかし、従来のエアーブリーザにあつては、ブ
リーザプラグ１１内で油膜が形成されて上昇する
ため、ケーシング１内の内圧が上昇して、空気の
流出抵抗を大にし、かつ、エアーブリーザから油
漏れを生じさせる恐れがある。
However, in the case of conventional air breathers, an oil film is formed within the breather plug 11 and rises, which increases the internal pressure within the casing 1, increasing air outflow resistance, and causing oil leakage from the air breather. There is a risk of causing
本考案は上記に鑑みてなされたものであり、ブ
リーザプラグ内に形成された油膜を破壊するた
め、開口通路の長手方向に対し垂直な断面積を２
分した小断面部を提供し、かつ前記開口通路の中
心軸を通るように長手方向に所定の長さで連続し
た隔壁を形成し、前記開口通路の内部側の開口部
より前記連続した隔壁を所定の長さで突出させる
ようにしたエアーブリーザを提供するものであ
る。
The present invention was developed in view of the above, and in order to destroy the oil film formed inside the breather plug, the cross-sectional area perpendicular to the longitudinal direction of the opening passage is reduced to 2.
and forming a continuous partition wall of a predetermined length in the longitudinal direction so as to pass through the central axis of the open passage, and extend the continuous partition wall from the opening on the inner side of the open passage. To provide an air breather which is made to protrude by a predetermined length.
本考案のエアーブリーザによれば、ブリーザプ
ラグを上昇する油膜をブリーザプラグ内に設けた
隔壁による通路面積の変化によつて破壊させ、空
気の流出抵抗の増加とキヤツプ側への油の漏れ出
しを防止する。
According to the air breather of the present invention, the oil film rising on the breather plug is destroyed by changing the passage area due to the partition wall provided in the breather plug, thereby increasing air outflow resistance and preventing oil leakage to the cap side. To prevent.
以下本考案によるエアーブリーザを詳細に説明
する。
The air breather according to the present invention will be described in detail below.
第１図は本考案の一実施例を示し、第３図と同
一の部分は同一の引用数字で示したので重複する
説明は省略するが、ブリーザプラグ１１内に隔壁
２を配設して構成される。隔壁２は第１図及び第
２図に示すように、ブリーザプラグ１１内を半径
方向に２分（通路１５及び１６）する板状体であ
り、ブリーザプラグ１１の中央部の長手方向で、
かつ下部寄りに配設されている。隔壁２の下端は
ブリーザプラグ１１の下端面より突出している。
また、ケース内に封入されている潤滑油がブリー
ザプラグ１１を直撃することの無いように、ボス
部４が設けられている。 FIG. 1 shows an embodiment of the present invention, and the same parts as in FIG. be done. As shown in FIGS. 1 and 2, the partition wall 2 is a plate-shaped body that divides the inside of the breather plug 11 into two in the radial direction (passages 15 and 16).
And it is located near the bottom. The lower end of the partition wall 2 protrudes from the lower end surface of the breather plug 11.
Further, a boss portion 4 is provided to prevent the lubricating oil sealed in the case from directly hitting the breather plug 11.
以上の構成において、ブリーザプラグ１１の下
部を流通する潤滑油の一部が、ブリーザプラグ１
１の開口端に接触すると、表面張力によつて通路
１５側の開口端面に油膜３が生じる。このとき、
通路１６側は隔壁２があるため油膜は生じにく
い。この状態下で、ケーシング１の内圧が高ま
り、バルブ１３が押し上げられ、バルブ１３が開
く。これによつて、バルブ１３からの空気吐出量
に応じて通路１５内に形成された油膜３がブリー
ザプラグ１１を上昇する。 In the above configuration, part of the lubricating oil flowing through the lower part of the breather plug 11
1, an oil film 3 is formed on the opening end surface on the passage 15 side due to surface tension. At this time,
Since there is a partition wall 2 on the passage 16 side, an oil film is difficult to form. Under this condition, the internal pressure of the casing 1 increases, the valve 13 is pushed up, and the valve 13 is opened. As a result, the oil film 3 formed in the passage 15 moves up the breather plug 11 in accordance with the amount of air discharged from the valve 13.
バルブ１３の弁動作に応じて油膜３は通路１５
内を上昇し、隔壁２の上端に達する。 Depending on the valve operation of the valve 13, the oil film 3 opens into the passage 15.
It rises inside and reaches the upper end of the partition wall 2.
この部分において通路面積が拡大されるため、
油膜３は破壊され、通路１５あるいは１６側に油
滴となつて落下する。従つて、隔壁２の上端より
上方に油膜が上昇することは無く、エアーブリー
ザを介して外部に油漏れが生じさせることがな
い。 Since the passage area is expanded in this part,
The oil film 3 is destroyed and falls as oil droplets on the passage 15 or 16 side. Therefore, the oil film does not rise above the upper end of the partition wall 2, and no oil leaks to the outside via the air breather.
尚、隔壁は当該エアーブリーザを装着する箇所
に応じて板状体や網状体等の形状を選択できる。 Note that the shape of the partition wall can be selected from a plate-like body, a mesh-like body, etc. depending on the location where the air breather is attached.
以上説明した通り、本考案のエアーブリーザに
よれば、ブリーザプラグの開口通路の長手方向に
対し垂直な断面積を２分した小断面部を提供し、
かつ開口通路の中心軸を通るように長手方向に所
定の長さで連続した隔壁を形成し、開口通路の開
口部より連続した隔壁を所定の長さで突出させた
ため、油膜による空気流出抵抗の増加を防ぎエア
ーブリーザを介して外部に油漏れを生じさせるこ
とがない。
As explained above, according to the air breather of the present invention, a small cross-sectional area is provided in which the cross-sectional area perpendicular to the longitudinal direction of the open passage of the breather plug is divided into two,
In addition, by forming a continuous partition wall with a predetermined length in the longitudinal direction so as to pass through the central axis of the open passage, and by making the continuous partition wall protrude with a predetermined length from the opening of the open passage, the air outflow resistance due to the oil film is reduced. This prevents oil from leaking to the outside through the air breather.
第１図は本考案の一実施例を示す断面図。第２
図は第１図の実施例の底面図。第３図は従来のエ
アーブリーザを示す断面図。
符号の説明、１……ケーシング、２……隔壁、
３……油膜、１０……エアーブリーザ、１１……
ブリーザプラグ、１２……キヤツプ、１３……バ
ルブ、１４……スプリング、１５，１６……通
路。
FIG. 1 is a sectional view showing an embodiment of the present invention. Second
The figure is a bottom view of the embodiment of FIG. 1. FIG. 3 is a sectional view showing a conventional air breather. Explanation of symbols, 1... Casing, 2... Bulkhead,
3... Oil film, 10... Air breather, 11...
Breather plug, 12...cap, 13...valve, 14...spring, 15, 16...passage.
Claims (1)
ーの上部にブリーザプラグを設け、該ブリーザプ
ラグを介して前記ギヤボツクス等の内部を内部圧
に応じて外気と連通させるエアーブリーザにおい
て、 前記ブリーザプラグの開口通路の長手方向に対
し垂直な断面積を２分した小断面部を提供し、か
つ前記開口通路の中心軸を通るように長手方向に
所定の長さで連続した隔壁を形成し、前記開口通
路の内部側の開口部より前記連続した隔壁を所定
の長さで突出させたことを特徴とするエアーブリ
ーザ。[Scope of Claim for Utility Model Registration] In an air breather, a breather plug is provided on the upper part of a case or cover constituting a gear box, etc., and the inside of the gear box, etc. is communicated with outside air according to internal pressure via the breather plug, A small cross-sectional portion is provided by dividing a cross-sectional area perpendicular to the longitudinal direction of the opening passage of the breather plug into two, and a partition wall is formed that continues for a predetermined length in the longitudinal direction so as to pass through the central axis of the opening passage. . An air breather characterized in that the continuous partition wall protrudes by a predetermined length from an opening on the inside side of the open passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986118787U JPH0413480Y2 (en) | 1986-08-01 | 1986-08-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986118787U JPH0413480Y2 (en) | 1986-08-01 | 1986-08-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6325882U JPS6325882U (en) | 1988-02-20 |
| JPH0413480Y2 true JPH0413480Y2 (en) | 1992-03-30 |
Family
ID=31005573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986118787U Expired JPH0413480Y2 (en) | 1986-08-01 | 1986-08-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0413480Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795670A (en) * | 2017-10-17 | 2018-03-13 | 中车株洲电力机车有限公司 | A kind of gear-box ventilation device and gear-box |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101469371B1 (en) * | 2013-07-02 | 2014-12-04 | 현대다이모스(주) | The Solenoid Box Having Button-Type Vent Plug |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57122871U (en) * | 1981-01-27 | 1982-07-30 |
-
1986
- 1986-08-01 JP JP1986118787U patent/JPH0413480Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795670A (en) * | 2017-10-17 | 2018-03-13 | 中车株洲电力机车有限公司 | A kind of gear-box ventilation device and gear-box |
| CN107795670B (en) * | 2017-10-17 | 2020-07-31 | 中车株洲电力机车有限公司 | Gear box ventilation structure and gear box |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6325882U (en) | 1988-02-20 |
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